X-Git-Url: https://git.octo.it/?p=rrdtool.git;a=blobdiff_plain;f=src%2Frrd_graph.c;h=95e3ed670628b1f91cb589fa0bad885b2481d34e;hp=0f6f588ebdf0a8fda09052587b97b5ab1762817a;hb=22424d6b1c6a14c1d919482f991427c7e43853a8;hpb=285da1fa16e80919db972b1d7021c0b4705bedb1 diff --git a/src/rrd_graph.c b/src/rrd_graph.c index 0f6f588..40539b3 100644 --- a/src/rrd_graph.c +++ b/src/rrd_graph.c @@ -1,99 +1,162 @@ /**************************************************************************** - * RRDtool 1.1.x Copyright Tobias Oetiker, 1997 - 2002 + * RRDtool 1.3.2 Copyright by Tobi Oetiker, 1997-2008 **************************************************************************** - * rrd__graph.c make creates ne rrds + * rrd__graph.c produce graphs from data in rrdfiles ****************************************************************************/ -#if 0 -#include "rrd_tool.h" -#endif #include +#include + #ifdef WIN32 +#include "strftime.h" +#include "plbasename.h" +#endif + +#include "rrd_tool.h" + +#if defined(WIN32) && !defined(__CYGWIN__) && !defined(__CYGWIN32__) #include #include #endif +#ifdef HAVE_TIME_H +#include +#endif + +#ifdef HAVE_LOCALE_H +#include +#endif + #include "rrd_graph.h" -#include "rrd_graph_helper.h" +#include "rrd_client.h" /* some constant definitions */ + #ifndef RRD_DEFAULT_FONT -#define RRD_DEFAULT_FONT "/usr/share/fonts/truetype/openoffice/ariosor.ttf" -/* #define RRD_DEFAULT_FONT "/usr/share/fonts/truetype/Arial.ttf" */ +/* there is special code later to pick Cour.ttf when running on windows */ +#define RRD_DEFAULT_FONT "DejaVu Sans Mono,Bitstream Vera Sans Mono,monospace,Courier" #endif - -text_prop_t text_prop[] = { - { 10.0, RRD_DEFAULT_FONT }, /* default */ - { 12.0, RRD_DEFAULT_FONT }, /* title */ - { 8.0, RRD_DEFAULT_FONT }, /* axis */ - { 10.0, RRD_DEFAULT_FONT }, /* unit */ - { 10.0, RRD_DEFAULT_FONT } /* legend */ +text_prop_t text_prop[] = { + {8.0, RRD_DEFAULT_FONT,NULL} + , /* default */ + {9.0, RRD_DEFAULT_FONT,NULL} + , /* title */ + {7.0, RRD_DEFAULT_FONT,NULL} + , /* axis */ + {8.0, RRD_DEFAULT_FONT,NULL} + , /* unit */ + {8.0, RRD_DEFAULT_FONT,NULL} /* legend */ + , + {5.5, RRD_DEFAULT_FONT,NULL} /* watermark */ }; -xlab_t xlab[] = { - {0, TMT_SECOND,30, TMT_MINUTE,5, TMT_MINUTE,5, 0,"%H:%M"}, - {2, TMT_MINUTE,1, TMT_MINUTE,5, TMT_MINUTE,5, 0,"%H:%M"}, - {5, TMT_MINUTE,2, TMT_MINUTE,10, TMT_MINUTE,10, 0,"%H:%M"}, - {10, TMT_MINUTE,5, TMT_MINUTE,20, TMT_MINUTE,20, 0,"%H:%M"}, - {30, TMT_MINUTE,10, TMT_HOUR,1, TMT_HOUR,1, 0,"%H:%M"}, - {60, TMT_MINUTE,30, TMT_HOUR,2, TMT_HOUR,2, 0,"%H:%M"}, - {180, TMT_HOUR,1, TMT_HOUR,6, TMT_HOUR,6, 0,"%H:%M"}, - /*{300, TMT_HOUR,3, TMT_HOUR,12, TMT_HOUR,12, 12*3600,"%a %p"}, this looks silly*/ - {600, TMT_HOUR,6, TMT_DAY,1, TMT_DAY,1, 24*3600,"%a"}, - {1800, TMT_HOUR,12, TMT_DAY,1, TMT_DAY,2, 24*3600,"%a"}, - {3600, TMT_DAY,1, TMT_WEEK,1, TMT_WEEK,1, 7*24*3600,"Week %V"}, - {3*3600, TMT_WEEK,1, TMT_MONTH,1, TMT_WEEK,2, 7*24*3600,"Week %V"}, - {6*3600, TMT_MONTH,1, TMT_MONTH,1, TMT_MONTH,1, 30*24*3600,"%b"}, - {48*3600, TMT_MONTH,1, TMT_MONTH,3, TMT_MONTH,3, 30*24*3600,"%b"}, - {10*24*3600, TMT_YEAR,1, TMT_YEAR,1, TMT_YEAR,1, 365*24*3600,"%y"}, - {-1,TMT_MONTH,0,TMT_MONTH,0,TMT_MONTH,0,0,""} +xlab_t xlab[] = { + {0, 0, TMT_SECOND, 30, TMT_MINUTE, 5, TMT_MINUTE, 5, 0, "%H:%M"} + , + {2, 0, TMT_MINUTE, 1, TMT_MINUTE, 5, TMT_MINUTE, 5, 0, "%H:%M"} + , + {5, 0, TMT_MINUTE, 2, TMT_MINUTE, 10, TMT_MINUTE, 10, 0, "%H:%M"} + , + {10, 0, TMT_MINUTE, 5, TMT_MINUTE, 20, TMT_MINUTE, 20, 0, "%H:%M"} + , + {30, 0, TMT_MINUTE, 10, TMT_HOUR, 1, TMT_HOUR, 1, 0, "%H:%M"} + , + {60, 0, TMT_MINUTE, 30, TMT_HOUR, 2, TMT_HOUR, 2, 0, "%H:%M"} + , + {60, 24 * 3600, TMT_MINUTE, 30, TMT_HOUR, 2, TMT_HOUR, 6, 0, "%a %H:%M"} + , + {180, 0, TMT_HOUR, 1, TMT_HOUR, 6, TMT_HOUR, 6, 0, "%H:%M"} + , + {180, 24 * 3600, TMT_HOUR, 1, TMT_HOUR, 6, TMT_HOUR, 12, 0, "%a %H:%M"} + , + /*{300, 0, TMT_HOUR,3, TMT_HOUR,12, TMT_HOUR,12, 12*3600,"%a %p"}, this looks silly */ + {600, 0, TMT_HOUR, 6, TMT_DAY, 1, TMT_DAY, 1, 24 * 3600, "%a"} + , + {1200, 0, TMT_HOUR, 6, TMT_DAY, 1, TMT_DAY, 1, 24 * 3600, "%d"} + , + {1800, 0, TMT_HOUR, 12, TMT_DAY, 1, TMT_DAY, 2, 24 * 3600, "%a %d"} + , + {2400, 0, TMT_HOUR, 12, TMT_DAY, 1, TMT_DAY, 2, 24 * 3600, "%a"} + , + {3600, 0, TMT_DAY, 1, TMT_WEEK, 1, TMT_WEEK, 1, 7 * 24 * 3600, "Week %V"} + , + {3 * 3600, 0, TMT_WEEK, 1, TMT_MONTH, 1, TMT_WEEK, 2, 7 * 24 * 3600, + "Week %V"} + , + {6 * 3600, 0, TMT_MONTH, 1, TMT_MONTH, 1, TMT_MONTH, 1, 30 * 24 * 3600, + "%b"} + , + {48 * 3600, 0, TMT_MONTH, 1, TMT_MONTH, 3, TMT_MONTH, 3, 30 * 24 * 3600, + "%b"} + , + {315360, 0, TMT_MONTH, 3, TMT_YEAR, 1, TMT_YEAR, 1, 365 * 24 * 3600, "%Y"} + , + {10 * 24 * 3600, 0, TMT_YEAR, 1, TMT_YEAR, 1, TMT_YEAR, 1, + 365 * 24 * 3600, "%y"} + , + {-1, 0, TMT_MONTH, 0, TMT_MONTH, 0, TMT_MONTH, 0, 0, ""} }; -/* sensible logarithmic y label intervals ... - the first element of each row defines the possible starting points on the - y axis ... the other specify the */ - -double yloglab[][12]= {{ 1e9, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, - { 1e3, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, - { 1e1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, - /* { 1e1, 1, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, */ - { 1e1, 1, 2.5, 5, 7.5, 0, 0, 0, 0, 0, 0, 0 }, - { 1e1, 1, 2, 4, 6, 8, 0, 0, 0, 0, 0, 0 }, - { 1e1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0 }, - { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }}; - /* sensible y label intervals ...*/ -ylab_t ylab[]= { - {0.1, {1,2, 5,10}}, - {0.2, {1,5,10,20}}, - {0.5, {1,2, 4,10}}, - {1.0, {1,2, 5,10}}, - {2.0, {1,5,10,20}}, - {5.0, {1,2, 4,10}}, - {10.0, {1,2, 5,10}}, - {20.0, {1,5,10,20}}, - {50.0, {1,2, 4,10}}, - {100.0, {1,2, 5,10}}, - {200.0, {1,5,10,20}}, - {500.0, {1,2, 4,10}}, - {0.0, {0,0,0,0}}}; +ylab_t ylab[] = { + {0.1, {1, 2, 5, 10} + } + , + {0.2, {1, 5, 10, 20} + } + , + {0.5, {1, 2, 4, 10} + } + , + {1.0, {1, 2, 5, 10} + } + , + {2.0, {1, 5, 10, 20} + } + , + {5.0, {1, 2, 4, 10} + } + , + {10.0, {1, 2, 5, 10} + } + , + {20.0, {1, 5, 10, 20} + } + , + {50.0, {1, 2, 4, 10} + } + , + {100.0, {1, 2, 5, 10} + } + , + {200.0, {1, 5, 10, 20} + } + , + {500.0, {1, 2, 4, 10} + } + , + {0.0, {0, 0, 0, 0} + } +}; gfx_color_t graph_col[] = /* default colors */ -{ 0xFFFFFFFF, /* canvas */ - 0xF0F0F0FF, /* background */ - 0xD0D0D0FF, /* shade A */ - 0xA0A0A0FF, /* shade B */ - 0x909090FF, /* grid */ - 0xE05050FF, /* major grid */ - 0x000000FF, /* font */ - 0x000000FF, /* frame */ - 0xFF0000FF /* arrow */ +{ + {1.00, 1.00, 1.00, 1.00}, /* canvas */ + {0.95, 0.95, 0.95, 1.00}, /* background */ + {0.81, 0.81, 0.81, 1.00}, /* shade A */ + {0.62, 0.62, 0.62, 1.00}, /* shade B */ + {0.56, 0.56, 0.56, 0.75}, /* grid */ + {0.87, 0.31, 0.31, 0.60}, /* major grid */ + {0.00, 0.00, 0.00, 1.00}, /* font */ + {0.50, 0.12, 0.12, 1.00}, /* arrow */ + {0.12, 0.12, 0.12, 1.00}, /* axis */ + {0.00, 0.00, 0.00, 1.00} /* frame */ }; @@ -107,49 +170,44 @@ gfx_color_t graph_col[] = /* default colors */ /* initialize with xtr(im,0); */ -int -xtr(image_desc_t *im,time_t mytime){ +int xtr( + image_desc_t *im, + time_t mytime) +{ static double pixie; - if (mytime==0){ - pixie = (double) im->xsize / (double)(im->end - im->start); - return im->xorigin; + + if (mytime == 0) { + pixie = (double) im->xsize / (double) (im->end - im->start); + return im->xorigin; } - return (int)((double)im->xorigin - + pixie * ( mytime - im->start ) ); + return (int) ((double) im->xorigin + pixie * (mytime - im->start)); } /* translate data values into y coordinates */ -int -ytr(image_desc_t *im, double value){ +double ytr( + image_desc_t *im, + double value) +{ static double pixie; - double yval; - if (isnan(value)){ - if(!im->logarithmic) - pixie = (double) im->ysize / (im->maxval - im->minval); - else - pixie = (double) im->ysize / (log10(im->maxval) - log10(im->minval)); - yval = im->yorigin; - } else if(!im->logarithmic) { - yval = im->yorigin - pixie * (value - im->minval) + 0.5; - } else { - if (value < im->minval) { - yval = im->yorigin; - } else { - yval = im->yorigin - pixie * (log10(value) - log10(im->minval)) + 0.5; - } - } - /* make sure we don't return anything too unreasonable. GD lib can - get terribly slow when drawing lines outside its scope. This is - especially problematic in connection with the rigid option */ - if (! im->rigid) { - return (int)yval; - } else if ((int)yval > im->yorigin) { - return im->yorigin+2; - } else if ((int) yval < im->yorigin - im->ysize){ - return im->yorigin - im->ysize - 2; + double yval; + + if (isnan(value)) { + if (!im->logarithmic) + pixie = (double) im->ysize / (im->maxval - im->minval); + else + pixie = + (double) im->ysize / (log10(im->maxval) - log10(im->minval)); + yval = im->yorigin; + } else if (!im->logarithmic) { + yval = im->yorigin - pixie * (value - im->minval); } else { - return (int)yval; - } + if (value < im->minval) { + yval = im->yorigin; + } else { + yval = im->yorigin - pixie * (log10(value) - log10(im->minval)); + } + } + return yval; } @@ -160,435 +218,581 @@ ytr(image_desc_t *im, double value){ #define conv_if(VV,VVV) \ if (strcmp(#VV, string) == 0) return VVV ; -enum gf_en gf_conv(char *string){ - - conv_if(PRINT,GF_PRINT) - conv_if(GPRINT,GF_GPRINT) - conv_if(COMMENT,GF_COMMENT) - conv_if(HRULE,GF_HRULE) - conv_if(VRULE,GF_VRULE) - conv_if(LINE,GF_LINE) - conv_if(AREA,GF_AREA) - conv_if(STACK,GF_STACK) - conv_if(TICK,GF_TICK) - conv_if(DEF,GF_DEF) - conv_if(CDEF,GF_CDEF) - conv_if(VDEF,GF_VDEF) - - return (-1); +enum gf_en gf_conv( + char *string) +{ + + conv_if(PRINT, GF_PRINT); + conv_if(GPRINT, GF_GPRINT); + conv_if(COMMENT, GF_COMMENT); + conv_if(HRULE, GF_HRULE); + conv_if(VRULE, GF_VRULE); + conv_if(LINE, GF_LINE); + conv_if(AREA, GF_AREA); + conv_if(STACK, GF_STACK); + conv_if(TICK, GF_TICK); + conv_if(TEXTALIGN, GF_TEXTALIGN); + conv_if(DEF, GF_DEF); + conv_if(CDEF, GF_CDEF); + conv_if(VDEF, GF_VDEF); + conv_if(XPORT, GF_XPORT); + conv_if(SHIFT, GF_SHIFT); + + return (enum gf_en)(-1); } -enum if_en if_conv(char *string){ - - conv_if(GIF,IF_GIF) - conv_if(PNG,IF_PNG) +enum gfx_if_en if_conv( + char *string) +{ + + conv_if(PNG, IF_PNG); + conv_if(SVG, IF_SVG); + conv_if(EPS, IF_EPS); + conv_if(PDF, IF_PDF); - return (-1); + return (enum gfx_if_en)(-1); } -enum tmt_en tmt_conv(char *string){ +enum tmt_en tmt_conv( + char *string) +{ - conv_if(SECOND,TMT_SECOND) - conv_if(MINUTE,TMT_MINUTE) - conv_if(HOUR,TMT_HOUR) - conv_if(DAY,TMT_DAY) - conv_if(WEEK,TMT_WEEK) - conv_if(MONTH,TMT_MONTH) - conv_if(YEAR,TMT_YEAR) - return (-1); + conv_if(SECOND, TMT_SECOND); + conv_if(MINUTE, TMT_MINUTE); + conv_if(HOUR, TMT_HOUR); + conv_if(DAY, TMT_DAY); + conv_if(WEEK, TMT_WEEK); + conv_if(MONTH, TMT_MONTH); + conv_if(YEAR, TMT_YEAR); + return (enum tmt_en)(-1); } -enum grc_en grc_conv(char *string){ - - conv_if(BACK,GRC_BACK) - conv_if(CANVAS,GRC_CANVAS) - conv_if(SHADEA,GRC_SHADEA) - conv_if(SHADEB,GRC_SHADEB) - conv_if(GRID,GRC_GRID) - conv_if(MGRID,GRC_MGRID) - conv_if(FONT,GRC_FONT) - conv_if(FRAME,GRC_FRAME) - conv_if(ARROW,GRC_ARROW) +enum grc_en grc_conv( + char *string) +{ - return -1; + conv_if(BACK, GRC_BACK); + conv_if(CANVAS, GRC_CANVAS); + conv_if(SHADEA, GRC_SHADEA); + conv_if(SHADEB, GRC_SHADEB); + conv_if(GRID, GRC_GRID); + conv_if(MGRID, GRC_MGRID); + conv_if(FONT, GRC_FONT); + conv_if(ARROW, GRC_ARROW); + conv_if(AXIS, GRC_AXIS); + conv_if(FRAME, GRC_FRAME); + + return (enum grc_en)(-1); } -enum text_prop_en text_prop_conv(char *string){ - - conv_if(DEFAULT,TEXT_PROP_DEFAULT) - conv_if(TITLE,TEXT_PROP_TITLE) - conv_if(AXIS,TEXT_PROP_AXIS) - conv_if(UNIT,TEXT_PROP_UNIT) - conv_if(LEGEND,TEXT_PROP_LEGEND) - return -1; +enum text_prop_en text_prop_conv( + char *string) +{ + + conv_if(DEFAULT, TEXT_PROP_DEFAULT); + conv_if(TITLE, TEXT_PROP_TITLE); + conv_if(AXIS, TEXT_PROP_AXIS); + conv_if(UNIT, TEXT_PROP_UNIT); + conv_if(LEGEND, TEXT_PROP_LEGEND); + conv_if(WATERMARK, TEXT_PROP_WATERMARK); + return (enum text_prop_en)(-1); } #undef conv_if - - -int -im_free(image_desc_t *im) +int im_free( + image_desc_t *im) { - long i,ii; - if (im == NULL) return 0; - for(i=0;igdes_c;i++){ - if (im->gdes[i].data_first){ - /* careful here, because a single pointer can occur several times */ - free (im->gdes[i].data); - if (im->gdes[i].ds_namv){ - for (ii=0;iigdes[i].ds_cnt;ii++) - free(im->gdes[i].ds_namv[ii]); - free(im->gdes[i].ds_namv); - } - } - free (im->gdes[i].p_data); - free (im->gdes[i].rpnp); + unsigned long i, ii; + cairo_status_t status = (cairo_status_t) 0; + + if (im == NULL) + return 0; + + if (im->daemon_addr != NULL) + free(im->daemon_addr); + + for (i = 0; i < (unsigned) im->gdes_c; i++) { + if (im->gdes[i].data_first) { + /* careful here, because a single pointer can occur several times */ + free(im->gdes[i].data); + if (im->gdes[i].ds_namv) { + for (ii = 0; ii < im->gdes[i].ds_cnt; ii++) + free(im->gdes[i].ds_namv[ii]); + free(im->gdes[i].ds_namv); + } + } + /* free allocated memory used for dashed lines */ + if (im->gdes[i].p_dashes != NULL) + free(im->gdes[i].p_dashes); + + free(im->gdes[i].p_data); + free(im->gdes[i].rpnp); } free(im->gdes); + if (im->font_options) + cairo_font_options_destroy(im->font_options); + + if (im->cr) { + status = cairo_status(im->cr); + cairo_destroy(im->cr); + } + if (im->rendered_image) { + free(im->rendered_image); + } + + if (im->layout) { + g_object_unref (im->layout); + } + + if (im->surface) + cairo_surface_destroy(im->surface); + + if (status) + fprintf(stderr, "OOPS: Cairo has issues it can't even die: %s\n", + cairo_status_to_string(status)); + return 0; } /* find SI magnitude symbol for the given number*/ -void -auto_scale( - image_desc_t *im, /* image description */ - double *value, - char **symb_ptr, - double *magfact - ) +void auto_scale( + image_desc_t *im, /* image description */ + double *value, + char **symb_ptr, + double *magfact) { - - char *symbol[] = {"a", /* 10e-18 Atto */ - "f", /* 10e-15 Femto */ - "p", /* 10e-12 Pico */ - "n", /* 10e-9 Nano */ - "u", /* 10e-6 Micro */ - "m", /* 10e-3 Milli */ - " ", /* Base */ - "k", /* 10e3 Kilo */ - "M", /* 10e6 Mega */ - "G", /* 10e9 Giga */ - "T", /* 10e12 Tera */ - "P", /* 10e15 Peta */ - "E"};/* 10e18 Exa */ - - int symbcenter = 6; - int sindex; - - if (*value == 0.0 || isnan(*value) ) { - sindex = 0; - *magfact = 1.0; + + char *symbol[] = { "a", /* 10e-18 Atto */ + "f", /* 10e-15 Femto */ + "p", /* 10e-12 Pico */ + "n", /* 10e-9 Nano */ + "u", /* 10e-6 Micro */ + "m", /* 10e-3 Milli */ + " ", /* Base */ + "k", /* 10e3 Kilo */ + "M", /* 10e6 Mega */ + "G", /* 10e9 Giga */ + "T", /* 10e12 Tera */ + "P", /* 10e15 Peta */ + "E" + }; /* 10e18 Exa */ + + int symbcenter = 6; + int sindex; + + if (*value == 0.0 || isnan(*value)) { + sindex = 0; + *magfact = 1.0; } else { - sindex = floor(log(fabs(*value))/log((double)im->base)); - *magfact = pow((double)im->base, (double)sindex); - (*value) /= (*magfact); - } - if ( sindex <= symbcenter && sindex >= -symbcenter) { - (*symb_ptr) = symbol[sindex+symbcenter]; + sindex = floor(log(fabs(*value)) / log((double) im->base)); + *magfact = pow((double) im->base, (double) sindex); + (*value) /= (*magfact); } - else { - (*symb_ptr) = "?"; + if (sindex <= symbcenter && sindex >= -symbcenter) { + (*symb_ptr) = symbol[sindex + symbcenter]; + } else { + (*symb_ptr) = "?"; } } +static char si_symbol[] = { + 'a', /* 10e-18 Atto */ + 'f', /* 10e-15 Femto */ + 'p', /* 10e-12 Pico */ + 'n', /* 10e-9 Nano */ + 'u', /* 10e-6 Micro */ + 'm', /* 10e-3 Milli */ + ' ', /* Base */ + 'k', /* 10e3 Kilo */ + 'M', /* 10e6 Mega */ + 'G', /* 10e9 Giga */ + 'T', /* 10e12 Tera */ + 'P', /* 10e15 Peta */ + 'E', /* 10e18 Exa */ +}; +static const int si_symbcenter = 6; + /* find SI magnitude symbol for the numbers on the y-axis*/ -void -si_unit( - image_desc_t *im /* image description */ -) +void si_unit( + image_desc_t *im /* image description */ + ) { - char symbol[] = {'a', /* 10e-18 Atto */ - 'f', /* 10e-15 Femto */ - 'p', /* 10e-12 Pico */ - 'n', /* 10e-9 Nano */ - 'u', /* 10e-6 Micro */ - 'm', /* 10e-3 Milli */ - ' ', /* Base */ - 'k', /* 10e3 Kilo */ - 'M', /* 10e6 Mega */ - 'G', /* 10e9 Giga */ - 'T', /* 10e12 Tera */ - 'P', /* 10e15 Peta */ - 'E'};/* 10e18 Exa */ - - int symbcenter = 6; - double digits; - + double digits, viewdigits = 0; + + digits = + floor(log(max(fabs(im->minval), fabs(im->maxval))) / + log((double) im->base)); + if (im->unitsexponent != 9999) { - /* unitsexponent = 9, 6, 3, 0, -3, -6, -9, etc */ - digits = floor(im->unitsexponent / 3); + /* unitsexponent = 9, 6, 3, 0, -3, -6, -9, etc */ + viewdigits = floor((double)(im->unitsexponent / 3)); } else { - digits = floor( log( max( fabs(im->minval),fabs(im->maxval)))/log((double)im->base)); + viewdigits = digits; } - im->magfact = pow((double)im->base , digits); + + im->magfact = pow((double) im->base, digits); #ifdef DEBUG - printf("digits %6.3f im->magfact %6.3f\n",digits,im->magfact); + printf("digits %6.3f im->magfact %6.3f\n", digits, im->magfact); #endif - if ( ((digits+symbcenter) < sizeof(symbol)) && - ((digits+symbcenter) >= 0) ) - im->symbol = symbol[(int)digits+symbcenter]; + im->viewfactor = im->magfact / pow((double) im->base, viewdigits); + + if (((viewdigits + si_symbcenter) < sizeof(si_symbol)) && + ((viewdigits + si_symbcenter) >= 0)) + im->symbol = si_symbol[(int) viewdigits + si_symbcenter]; else - im->symbol = ' '; - } + im->symbol = '?'; +} /* move min and max values around to become sensible */ -void -expand_range(image_desc_t *im) +void expand_range( + image_desc_t *im) { - double sensiblevalues[] ={1000.0,900.0,800.0,750.0,700.0, - 600.0,500.0,400.0,300.0,250.0, - 200.0,125.0,100.0,90.0,80.0, - 75.0,70.0,60.0,50.0,40.0,30.0, - 25.0,20.0,10.0,9.0,8.0, - 7.0,6.0,5.0,4.0,3.5,3.0, - 2.5,2.0,1.8,1.5,1.2,1.0, - 0.8,0.7,0.6,0.5,0.4,0.3,0.2,0.1,0.0,-1}; - - double scaled_min,scaled_max; - double adj; - int i; - + double sensiblevalues[] = { 1000.0, 900.0, 800.0, 750.0, 700.0, + 600.0, 500.0, 400.0, 300.0, 250.0, + 200.0, 125.0, 100.0, 90.0, 80.0, + 75.0, 70.0, 60.0, 50.0, 40.0, 30.0, + 25.0, 20.0, 10.0, 9.0, 8.0, + 7.0, 6.0, 5.0, 4.0, 3.5, 3.0, + 2.5, 2.0, 1.8, 1.5, 1.2, 1.0, + 0.8, 0.7, 0.6, 0.5, 0.4, 0.3, 0.2, 0.1, 0.0, -1 + }; + + double scaled_min, scaled_max; + double adj; + int i; + + - #ifdef DEBUG printf("Min: %6.2f Max: %6.2f MagFactor: %6.2f\n", - im->minval,im->maxval,im->magfact); + im->minval, im->maxval, im->magfact); #endif - if (isnan(im->ygridstep)){ - if(im->extra_flags & ALTAUTOSCALE) { - /* measure the amplitude of the function. Make sure that - graph boundaries are slightly higher then max/min vals - so we can see amplitude on the graph */ - double delt, fact; - - delt = im->maxval - im->minval; - adj = delt * 0.1; - fact = 2.0 * pow(10.0, - floor(log10(max(fabs(im->minval), fabs(im->maxval)))) - 2); - if (delt < fact) { - adj = (fact - delt) * 0.55; + if (isnan(im->ygridstep)) { + if (im->extra_flags & ALTAUTOSCALE) { + /* measure the amplitude of the function. Make sure that + graph boundaries are slightly higher then max/min vals + so we can see amplitude on the graph */ + double delt, fact; + + delt = im->maxval - im->minval; + adj = delt * 0.1; + fact = 2.0 * pow(10.0, + floor(log10 + (max(fabs(im->minval), fabs(im->maxval)) / + im->magfact)) - 2); + if (delt < fact) { + adj = (fact - delt) * 0.55; #ifdef DEBUG - printf("Min: %6.2f Max: %6.2f delt: %6.2f fact: %6.2f adj: %6.2f\n", im->minval, im->maxval, delt, fact, adj); + printf + ("Min: %6.2f Max: %6.2f delt: %6.2f fact: %6.2f adj: %6.2f\n", + im->minval, im->maxval, delt, fact, adj); #endif - } - im->minval -= adj; - im->maxval += adj; - } - else if(im->extra_flags & ALTAUTOSCALE_MAX) { - /* measure the amplitude of the function. Make sure that - graph boundaries are slightly higher than max vals - so we can see amplitude on the graph */ - adj = (im->maxval - im->minval) * 0.1; - im->maxval += adj; - } - else { - scaled_min = im->minval / im->magfact; - scaled_max = im->maxval / im->magfact; - - for (i=1; sensiblevalues[i] > 0; i++){ - if (sensiblevalues[i-1]>=scaled_min && - sensiblevalues[i]<=scaled_min) - im->minval = sensiblevalues[i]*(im->magfact); - - if (-sensiblevalues[i-1]<=scaled_min && - -sensiblevalues[i]>=scaled_min) - im->minval = -sensiblevalues[i-1]*(im->magfact); - - if (sensiblevalues[i-1] >= scaled_max && - sensiblevalues[i] <= scaled_max) - im->maxval = sensiblevalues[i-1]*(im->magfact); - - if (-sensiblevalues[i-1]<=scaled_max && - -sensiblevalues[i] >=scaled_max) - im->maxval = -sensiblevalues[i]*(im->magfact); - } - } + } + im->minval -= adj; + im->maxval += adj; + } else if (im->extra_flags & ALTAUTOSCALE_MIN) { + /* measure the amplitude of the function. Make sure that + graph boundaries are slightly lower than min vals + so we can see amplitude on the graph */ + adj = (im->maxval - im->minval) * 0.1; + im->minval -= adj; + } else if (im->extra_flags & ALTAUTOSCALE_MAX) { + /* measure the amplitude of the function. Make sure that + graph boundaries are slightly higher than max vals + so we can see amplitude on the graph */ + adj = (im->maxval - im->minval) * 0.1; + im->maxval += adj; + } else { + scaled_min = im->minval / im->magfact; + scaled_max = im->maxval / im->magfact; + + for (i = 1; sensiblevalues[i] > 0; i++) { + if (sensiblevalues[i - 1] >= scaled_min && + sensiblevalues[i] <= scaled_min) + im->minval = sensiblevalues[i] * (im->magfact); + + if (-sensiblevalues[i - 1] <= scaled_min && + -sensiblevalues[i] >= scaled_min) + im->minval = -sensiblevalues[i - 1] * (im->magfact); + + if (sensiblevalues[i - 1] >= scaled_max && + sensiblevalues[i] <= scaled_max) + im->maxval = sensiblevalues[i - 1] * (im->magfact); + + if (-sensiblevalues[i - 1] <= scaled_max && + -sensiblevalues[i] >= scaled_max) + im->maxval = -sensiblevalues[i] * (im->magfact); + } + } } else { - /* adjust min and max to the grid definition if there is one */ - im->minval = (double)im->ylabfact * im->ygridstep * - floor(im->minval / ((double)im->ylabfact * im->ygridstep)); - im->maxval = (double)im->ylabfact * im->ygridstep * - ceil(im->maxval /( (double)im->ylabfact * im->ygridstep)); + /* adjust min and max to the grid definition if there is one */ + im->minval = (double) im->ylabfact * im->ygridstep * + floor(im->minval / ((double) im->ylabfact * im->ygridstep)); + im->maxval = (double) im->ylabfact * im->ygridstep * + ceil(im->maxval / ((double) im->ylabfact * im->ygridstep)); } - + #ifdef DEBUG - fprintf(stderr,"SCALED Min: %6.2f Max: %6.2f Factor: %6.2f\n", - im->minval,im->maxval,im->magfact); + fprintf(stderr, "SCALED Min: %6.2f Max: %6.2f Factor: %6.2f\n", + im->minval, im->maxval, im->magfact); #endif } - -/* reduce data reimplementation by Alex */ -void -reduce_data( - enum cf_en cf, /* which consolidation function ?*/ - unsigned long cur_step, /* step the data currently is in */ - time_t *start, /* start, end and step as requested ... */ - time_t *end, /* ... by the application will be ... */ - unsigned long *step, /* ... adjusted to represent reality */ - unsigned long *ds_cnt, /* number of data sources in file */ - rrd_value_t **data) /* two dimensional array containing the data */ +void apply_gridfit( + image_desc_t *im) { - int i,reduce_factor = ceil((double)(*step) / (double)cur_step); - unsigned long col,dst_row,row_cnt,start_offset,end_offset,skiprows=0; - rrd_value_t *srcptr,*dstptr; + if (isnan(im->minval) || isnan(im->maxval)) + return; + ytr(im, DNAN); + if (im->logarithmic) { + double ya, yb, ypix, ypixfrac; + double log10_range = log10(im->maxval) - log10(im->minval); + + ya = pow((double) 10, floor(log10(im->minval))); + while (ya < im->minval) + ya *= 10; + if (ya > im->maxval) + return; /* don't have y=10^x gridline */ + yb = ya * 10; + if (yb <= im->maxval) { + /* we have at least 2 y=10^x gridlines. + Make sure distance between them in pixels + are an integer by expanding im->maxval */ + double y_pixel_delta = ytr(im, ya) - ytr(im, yb); + double factor = y_pixel_delta / floor(y_pixel_delta); + double new_log10_range = factor * log10_range; + double new_ymax_log10 = log10(im->minval) + new_log10_range; + + im->maxval = pow(10, new_ymax_log10); + ytr(im, DNAN); /* reset precalc */ + log10_range = log10(im->maxval) - log10(im->minval); + } + /* make sure first y=10^x gridline is located on + integer pixel position by moving scale slightly + downwards (sub-pixel movement) */ + ypix = ytr(im, ya) + im->ysize; /* add im->ysize so it always is positive */ + ypixfrac = ypix - floor(ypix); + if (ypixfrac > 0 && ypixfrac < 1) { + double yfrac = ypixfrac / im->ysize; + + im->minval = pow(10, log10(im->minval) - yfrac * log10_range); + im->maxval = pow(10, log10(im->maxval) - yfrac * log10_range); + ytr(im, DNAN); /* reset precalc */ + } + } else { + /* Make sure we have an integer pixel distance between + each minor gridline */ + double ypos1 = ytr(im, im->minval); + double ypos2 = ytr(im, im->minval + im->ygrid_scale.gridstep); + double y_pixel_delta = ypos1 - ypos2; + double factor = y_pixel_delta / floor(y_pixel_delta); + double new_range = factor * (im->maxval - im->minval); + double gridstep = im->ygrid_scale.gridstep; + double minor_y, minor_y_px, minor_y_px_frac; + + if (im->maxval > 0.0) + im->maxval = im->minval + new_range; + else + im->minval = im->maxval - new_range; + ytr(im, DNAN); /* reset precalc */ + /* make sure first minor gridline is on integer pixel y coord */ + minor_y = gridstep * floor(im->minval / gridstep); + while (minor_y < im->minval) + minor_y += gridstep; + minor_y_px = ytr(im, minor_y) + im->ysize; /* ensure > 0 by adding ysize */ + minor_y_px_frac = minor_y_px - floor(minor_y_px); + if (minor_y_px_frac > 0 && minor_y_px_frac < 1) { + double yfrac = minor_y_px_frac / im->ysize; + double range = im->maxval - im->minval; + + im->minval = im->minval - yfrac * range; + im->maxval = im->maxval - yfrac * range; + ytr(im, DNAN); /* reset precalc */ + } + calc_horizontal_grid(im); /* recalc with changed im->maxval */ + } +} + +/* reduce data reimplementation by Alex */ - (*step) = cur_step*reduce_factor; /* set new step size for reduced data */ +void reduce_data( + enum cf_en cf, /* which consolidation function ? */ + unsigned long cur_step, /* step the data currently is in */ + time_t *start, /* start, end and step as requested ... */ + time_t *end, /* ... by the application will be ... */ + unsigned long *step, /* ... adjusted to represent reality */ + unsigned long *ds_cnt, /* number of data sources in file */ + rrd_value_t **data) +{ /* two dimensional array containing the data */ + int i, reduce_factor = ceil((double) (*step) / (double) cur_step); + unsigned long col, dst_row, row_cnt, start_offset, end_offset, skiprows = + 0; + rrd_value_t *srcptr, *dstptr; + + (*step) = cur_step * reduce_factor; /* set new step size for reduced data */ dstptr = *data; srcptr = *data; - row_cnt = ((*end)-(*start))/cur_step; + row_cnt = ((*end) - (*start)) / cur_step; #ifdef DEBUG #define DEBUG_REDUCE #endif #ifdef DEBUG_REDUCE -printf("Reducing %lu rows with factor %i time %lu to %lu, step %lu\n", - row_cnt,reduce_factor,*start,*end,cur_step); -for (col=0;col=reduce_factor;dst_row++) { - for (col=0;col<(*ds_cnt);col++) { - rrd_value_t newval=DNAN; - unsigned long validval=0; - - for (i=0;i= reduce_factor; dst_row++) { + for (col = 0; col < (*ds_cnt); col++) { + rrd_value_t newval = DNAN; + unsigned long validval = 0; + + for (i = 0; i < reduce_factor; i++) { + if (isnan(srcptr[i * (*ds_cnt) + col])) { + continue; + } + validval++; + if (isnan(newval)) + newval = srcptr[i * (*ds_cnt) + col]; + else { + switch (cf) { + case CF_HWPREDICT: + case CF_MHWPREDICT: + case CF_DEVSEASONAL: + case CF_DEVPREDICT: + case CF_SEASONAL: + case CF_AVERAGE: + newval += srcptr[i * (*ds_cnt) + col]; + break; + case CF_MINIMUM: + newval = min(newval, srcptr[i * (*ds_cnt) + col]); + break; + case CF_FAILURES: + /* an interval contains a failure if any subintervals contained a failure */ + case CF_MAXIMUM: + newval = max(newval, srcptr[i * (*ds_cnt) + col]); + break; + case CF_LAST: + newval = srcptr[i * (*ds_cnt) + col]; + break; + } + } + } + if (validval == 0) { + newval = DNAN; + } else { + switch (cf) { + case CF_HWPREDICT: + case CF_MHWPREDICT: + case CF_DEVSEASONAL: + case CF_DEVPREDICT: + case CF_SEASONAL: + case CF_AVERAGE: + newval /= validval; + break; + case CF_MINIMUM: + case CF_FAILURES: + case CF_MAXIMUM: + case CF_LAST: + break; + } + } + *dstptr++ = newval; + } + srcptr += (*ds_cnt) * reduce_factor; + row_cnt -= reduce_factor; } /* If we had to alter the endtime, we didn't have enough - ** source rows to fill the last row. Fill it with NaN. - */ - if (end_offset) for (col=0;col<(*ds_cnt);col++) *dstptr++ = DNAN; + ** source rows to fill the last row. Fill it with NaN. + */ + if (end_offset) + for (col = 0; col < (*ds_cnt); col++) + *dstptr++ = DNAN; #ifdef DEBUG_REDUCE - row_cnt = ((*end)-(*start))/ *step; + row_cnt = ((*end) - (*start)) / *step; srcptr = *data; printf("Done reducing. Currently %lu rows, time %lu to %lu, step %lu\n", - row_cnt,*start,*end,*step); -for (col=0;colgdes_c;i++){ - /* only GF_DEF elements fetch data */ - if (im->gdes[i].gf != GF_DEF) - continue; - - skip=0; - /* do we have it already ?*/ - for (ii=0;iigdes[ii].gf != GF_DEF) - continue; - if((strcmp(im->gdes[i].rrd,im->gdes[ii].rrd) == 0) - && (im->gdes[i].cf == im->gdes[ii].cf)){ - /* OK the data it is here already ... - * we just copy the header portion */ - im->gdes[i].start = im->gdes[ii].start; - im->gdes[i].end = im->gdes[ii].end; - im->gdes[i].step = im->gdes[ii].step; - im->gdes[i].ds_cnt = im->gdes[ii].ds_cnt; - im->gdes[i].ds_namv = im->gdes[ii].ds_namv; - im->gdes[i].data = im->gdes[ii].data; - im->gdes[i].data_first = 0; - skip=1; - } - if (skip) - break; - } - if (! skip) { - unsigned long ft_step = im->gdes[i].step ; - - if((rrd_fetch_fn(im->gdes[i].rrd, - im->gdes[i].cf, - &im->gdes[i].start, - &im->gdes[i].end, - &ft_step, - &im->gdes[i].ds_cnt, - &im->gdes[i].ds_namv, - &im->gdes[i].data)) == -1){ - return -1; - } - im->gdes[i].data_first = 1; - - if (ft_step < im->gdes[i].step) { - reduce_data(im->gdes[i].cf, - ft_step, - &im->gdes[i].start, - &im->gdes[i].end, - &im->gdes[i].step, - &im->gdes[i].ds_cnt, - &im->gdes[i].data); - } else { - im->gdes[i].step = ft_step; - } - } - - /* lets see if the required data source is realy there */ - for(ii=0;iigdes[i].ds_cnt;ii++){ - if(strcmp(im->gdes[i].ds_namv[ii],im->gdes[i].ds_nam) == 0){ - im->gdes[i].ds=ii; } - } - if (im->gdes[i].ds== -1){ - rrd_set_error("No DS called '%s' in '%s'", - im->gdes[i].ds_nam,im->gdes[i].rrd); - return -1; - } - + int i, ii; + int skip; + + /* pull the data from the rrd files ... */ + for (i = 0; i < (int) im->gdes_c; i++) { + /* only GF_DEF elements fetch data */ + if (im->gdes[i].gf != GF_DEF) + continue; + + skip = 0; + /* do we have it already ? */ + for (ii = 0; ii < i; ii++) { + if (im->gdes[ii].gf != GF_DEF) + continue; + if ((strcmp(im->gdes[i].rrd, im->gdes[ii].rrd) == 0) + && (im->gdes[i].cf == im->gdes[ii].cf) + && (im->gdes[i].cf_reduce == im->gdes[ii].cf_reduce) + && (im->gdes[i].start_orig == im->gdes[ii].start_orig) + && (im->gdes[i].end_orig == im->gdes[ii].end_orig) + && (im->gdes[i].step_orig == im->gdes[ii].step_orig)) { + /* OK, the data is already there. + ** Just copy the header portion + */ + im->gdes[i].start = im->gdes[ii].start; + im->gdes[i].end = im->gdes[ii].end; + im->gdes[i].step = im->gdes[ii].step; + im->gdes[i].ds_cnt = im->gdes[ii].ds_cnt; + im->gdes[i].ds_namv = im->gdes[ii].ds_namv; + im->gdes[i].data = im->gdes[ii].data; + im->gdes[i].data_first = 0; + skip = 1; + } + if (skip) + break; + } + if (!skip) { + unsigned long ft_step = im->gdes[i].step; /* ft_step will record what we got from fetch */ + + /* Flush the file if + * - a connection to the daemon has been established + * - this is the first occurrence of that RRD file + */ + if (rrdc_is_connected(im->daemon_addr)) + { + int status; + + status = 0; + for (ii = 0; ii < i; ii++) + { + if (strcmp (im->gdes[i].rrd, im->gdes[ii].rrd) == 0) + { + status = 1; + break; + } + } + + if (status == 0) + { + status = rrdc_flush (im->gdes[i].rrd); + if (status != 0) + { + rrd_set_error ("rrdc_flush (%s) failed with status %i.", + im->gdes[i].rrd, status); + return (-1); + } + } + } /* if (rrdc_is_connected()) */ + + if ((rrd_fetch_fn(im->gdes[i].rrd, + im->gdes[i].cf, + &im->gdes[i].start, + &im->gdes[i].end, + &ft_step, + &im->gdes[i].ds_cnt, + &im->gdes[i].ds_namv, + &im->gdes[i].data)) == -1) { + return -1; + } + im->gdes[i].data_first = 1; + + if (ft_step < im->gdes[i].step) { + reduce_data(im->gdes[i].cf_reduce, + ft_step, + &im->gdes[i].start, + &im->gdes[i].end, + &im->gdes[i].step, + &im->gdes[i].ds_cnt, &im->gdes[i].data); + } else { + im->gdes[i].step = ft_step; + } + } + + /* lets see if the required data source is really there */ + for (ii = 0; ii < (int) im->gdes[i].ds_cnt; ii++) { + if (strcmp(im->gdes[i].ds_namv[ii], im->gdes[i].ds_nam) == 0) { + im->gdes[i].ds = ii; + } + } + if (im->gdes[i].ds == -1) { + rrd_set_error("No DS called '%s' in '%s'", + im->gdes[i].ds_nam, im->gdes[i].rrd); + return -1; + } + } return 0; } @@ -677,303 +917,439 @@ data_fetch( image_desc_t *im ) * CDEF stuff *************************************************************/ -long -find_var_wrapper(void *arg1, char *key) +long find_var_wrapper( + void *arg1, + char *key) { - return find_var((image_desc_t *) arg1, key); + return find_var((image_desc_t *) arg1, key); } /* find gdes containing var*/ -long -find_var(image_desc_t *im, char *key){ - long ii; - for(ii=0;iigdes_c-1;ii++){ - if((im->gdes[ii].gf == GF_DEF - || im->gdes[ii].gf == GF_VDEF - || im->gdes[ii].gf == GF_CDEF) - && (strcmp(im->gdes[ii].vname,key) == 0)){ - return ii; - } - } +long find_var( + image_desc_t *im, + char *key) +{ + long ii; + + for (ii = 0; ii < im->gdes_c - 1; ii++) { + if ((im->gdes[ii].gf == GF_DEF + || im->gdes[ii].gf == GF_VDEF || im->gdes[ii].gf == GF_CDEF) + && (strcmp(im->gdes[ii].vname, key) == 0)) { + return ii; + } + } return -1; } -/* find the largest common denominator for all the numbers +/* find the greatest common divisor for all the numbers in the 0 terminated num array */ -long -lcd(long *num){ - long rest; - int i; - for (i=0;num[i+1]!=0;i++){ - do { - rest=num[i] % num[i+1]; - num[i]=num[i+1]; num[i+1]=rest; - } while (rest!=0); - num[i+1] = num[i]; +long lcd( + long *num) +{ + long rest; + int i; + + for (i = 0; num[i + 1] != 0; i++) { + do { + rest = num[i] % num[i + 1]; + num[i] = num[i + 1]; + num[i + 1] = rest; + } while (rest != 0); + num[i + 1] = num[i]; } /* return i==0?num[i]:num[i-1]; */ - return num[i]; + return num[i]; } /* run the rpn calculator on all the VDEF and CDEF arguments */ -int -data_calc( image_desc_t *im){ +int data_calc( + image_desc_t *im) +{ int gdi; int dataidx; - long *steparray, rpi; + long *steparray, rpi; int stepcnt; time_t now; rpnstack_t rpnstack; rpnstack_init(&rpnstack); - for (gdi=0;gdigdes_c;gdi++){ - /* Look for GF_VDEF and GF_CDEF in the same loop, - * so CDEFs can use VDEFs and vice versa - */ - switch (im->gdes[gdi].gf) { - case GF_VDEF: - /* A VDEF has no DS. This also signals other parts - * of rrdtool that this is a VDEF value, not a CDEF. - */ - im->gdes[gdi].ds_cnt = 0; - if (vdef_calc(im,gdi)) { - rrd_set_error("Error processing VDEF '%s'" - ,im->gdes[gdi].vname - ); - rpnstack_free(&rpnstack); - return -1; - } - break; - case GF_CDEF: - im->gdes[gdi].ds_cnt = 1; - im->gdes[gdi].ds = 0; - im->gdes[gdi].data_first = 1; - im->gdes[gdi].start = 0; - im->gdes[gdi].end = 0; - steparray=NULL; - stepcnt = 0; - dataidx=-1; - - /* Find the variables in the expression. - * - VDEF variables are substituted by their values - * and the opcode is changed into OP_NUMBER. - * - CDEF variables are analized for their step size, - * the lowest common denominator of all the step - * sizes of the data sources involved is calculated - * and the resulting number is the step size for the - * resulting data source. - */ - for(rpi=0;im->gdes[gdi].rpnp[rpi].op != OP_END;rpi++){ - if(im->gdes[gdi].rpnp[rpi].op == OP_VARIABLE){ - long ptr = im->gdes[gdi].rpnp[rpi].ptr; - if (im->gdes[ptr].ds_cnt == 0) { + for (gdi = 0; gdi < im->gdes_c; gdi++) { + /* Look for GF_VDEF and GF_CDEF in the same loop, + * so CDEFs can use VDEFs and vice versa + */ + switch (im->gdes[gdi].gf) { + case GF_XPORT: + break; + case GF_SHIFT:{ + graph_desc_t *vdp = &im->gdes[im->gdes[gdi].vidx]; + + /* remove current shift */ + vdp->start -= vdp->shift; + vdp->end -= vdp->shift; + + /* vdef */ + if (im->gdes[gdi].shidx >= 0) + vdp->shift = im->gdes[im->gdes[gdi].shidx].vf.val; + /* constant */ + else + vdp->shift = im->gdes[gdi].shval; + + /* normalize shift to multiple of consolidated step */ + vdp->shift = (vdp->shift / (long) vdp->step) * (long) vdp->step; + + /* apply shift */ + vdp->start += vdp->shift; + vdp->end += vdp->shift; + break; + } + case GF_VDEF: + /* A VDEF has no DS. This also signals other parts + * of rrdtool that this is a VDEF value, not a CDEF. + */ + im->gdes[gdi].ds_cnt = 0; + if (vdef_calc(im, gdi)) { + rrd_set_error("Error processing VDEF '%s'", + im->gdes[gdi].vname); + rpnstack_free(&rpnstack); + return -1; + } + break; + case GF_CDEF: + im->gdes[gdi].ds_cnt = 1; + im->gdes[gdi].ds = 0; + im->gdes[gdi].data_first = 1; + im->gdes[gdi].start = 0; + im->gdes[gdi].end = 0; + steparray = NULL; + stepcnt = 0; + dataidx = -1; + + /* Find the variables in the expression. + * - VDEF variables are substituted by their values + * and the opcode is changed into OP_NUMBER. + * - CDEF variables are analized for their step size, + * the lowest common denominator of all the step + * sizes of the data sources involved is calculated + * and the resulting number is the step size for the + * resulting data source. + */ + for (rpi = 0; im->gdes[gdi].rpnp[rpi].op != OP_END; rpi++) { + if (im->gdes[gdi].rpnp[rpi].op == OP_VARIABLE || + im->gdes[gdi].rpnp[rpi].op == OP_PREV_OTHER) { + long ptr = im->gdes[gdi].rpnp[rpi].ptr; + + if (im->gdes[ptr].ds_cnt == 0) { /* this is a VDEF data source */ #if 0 -printf("DEBUG: inside CDEF '%s' processing VDEF '%s'\n", - im->gdes[gdi].vname, - im->gdes[ptr].vname); -printf("DEBUG: value from vdef is %f\n",im->gdes[ptr].vf.val); + printf + ("DEBUG: inside CDEF '%s' processing VDEF '%s'\n", + im->gdes[gdi].vname, im->gdes[ptr].vname); + printf("DEBUG: value from vdef is %f\n", + im->gdes[ptr].vf.val); #endif - im->gdes[gdi].rpnp[rpi].val = im->gdes[ptr].vf.val; - im->gdes[gdi].rpnp[rpi].op = OP_NUMBER; - } else { - if ((steparray = rrd_realloc(steparray, (++stepcnt+1)*sizeof(*steparray)))==NULL){ - rrd_set_error("realloc steparray"); - rpnstack_free(&rpnstack); - return -1; - }; - - steparray[stepcnt-1] = im->gdes[ptr].step; - - /* adjust start and end of cdef (gdi) so - * that it runs from the latest start point - * to the earliest endpoint of any of the - * rras involved (ptr) - */ - if(im->gdes[gdi].start < im->gdes[ptr].start) - im->gdes[gdi].start = im->gdes[ptr].start; - - if(im->gdes[gdi].end == 0 || - im->gdes[gdi].end > im->gdes[ptr].end) - im->gdes[gdi].end = im->gdes[ptr].end; - - /* store pointer to the first element of - * the rra providing data for variable, - * further save step size and data source - * count of this rra - */ - im->gdes[gdi].rpnp[rpi].data = im->gdes[ptr].data; - im->gdes[gdi].rpnp[rpi].step = im->gdes[ptr].step; - im->gdes[gdi].rpnp[rpi].ds_cnt = im->gdes[ptr].ds_cnt; - - /* backoff the *.data ptr; this is done so - * rpncalc() function doesn't have to treat - * the first case differently - */ - } /* if ds_cnt != 0 */ - } /* if OP_VARIABLE */ - } /* loop through all rpi */ - - if(steparray == NULL){ - rrd_set_error("rpn expressions without DEF" - " or CDEF variables are not supported"); - rpnstack_free(&rpnstack); - return -1; - } - steparray[stepcnt]=0; - /* Now find the resulting step. All steps in all - * used RRAs have to be visited - */ - im->gdes[gdi].step = lcd(steparray); - free(steparray); - if((im->gdes[gdi].data = malloc(( - (im->gdes[gdi].end-im->gdes[gdi].start) - / im->gdes[gdi].step) - * sizeof(double)))==NULL){ - rrd_set_error("malloc im->gdes[gdi].data"); - rpnstack_free(&rpnstack); - return -1; - } - - /* Step through the new cdef results array and - * calculate the values - */ - for (now = im->gdes[gdi].start + im->gdes[gdi].step; - now<=im->gdes[gdi].end; - now += im->gdes[gdi].step) - { - rpnp_t *rpnp = im -> gdes[gdi].rpnp; - - /* 3rd arg of rpn_calc is for OP_VARIABLE lookups; - * in this case we are advancing by timesteps; - * we use the fact that time_t is a synonym for long - */ - if (rpn_calc(rpnp,&rpnstack,(long) now, - im->gdes[gdi].data,++dataidx) == -1) { - /* rpn_calc sets the error string */ - rpnstack_free(&rpnstack); - return -1; - } - } /* enumerate over time steps within a CDEF */ - break; - default: - continue; - } - } /* enumerate over CDEFs */ + im->gdes[gdi].rpnp[rpi].val = im->gdes[ptr].vf.val; + im->gdes[gdi].rpnp[rpi].op = OP_NUMBER; + } else { /* normal variables and PREF(variables) */ + + /* add one entry to the array that keeps track of the step sizes of the + * data sources going into the CDEF. */ + if ((steparray = + (long*)rrd_realloc(steparray, + (++stepcnt + + 1) * sizeof(*steparray))) == NULL) { + rrd_set_error("realloc steparray"); + rpnstack_free(&rpnstack); + return -1; + }; + + steparray[stepcnt - 1] = im->gdes[ptr].step; + + /* adjust start and end of cdef (gdi) so + * that it runs from the latest start point + * to the earliest endpoint of any of the + * rras involved (ptr) + */ + + if (im->gdes[gdi].start < im->gdes[ptr].start) + im->gdes[gdi].start = im->gdes[ptr].start; + + if (im->gdes[gdi].end == 0 || + im->gdes[gdi].end > im->gdes[ptr].end) + im->gdes[gdi].end = im->gdes[ptr].end; + + /* store pointer to the first element of + * the rra providing data for variable, + * further save step size and data source + * count of this rra + */ + im->gdes[gdi].rpnp[rpi].data = + im->gdes[ptr].data + im->gdes[ptr].ds; + im->gdes[gdi].rpnp[rpi].step = im->gdes[ptr].step; + im->gdes[gdi].rpnp[rpi].ds_cnt = im->gdes[ptr].ds_cnt; + + /* backoff the *.data ptr; this is done so + * rpncalc() function doesn't have to treat + * the first case differently + */ + } /* if ds_cnt != 0 */ + } /* if OP_VARIABLE */ + } /* loop through all rpi */ + + /* move the data pointers to the correct period */ + for (rpi = 0; im->gdes[gdi].rpnp[rpi].op != OP_END; rpi++) { + if (im->gdes[gdi].rpnp[rpi].op == OP_VARIABLE || + im->gdes[gdi].rpnp[rpi].op == OP_PREV_OTHER) { + long ptr = im->gdes[gdi].rpnp[rpi].ptr; + long diff = + im->gdes[gdi].start - im->gdes[ptr].start; + + if (diff > 0) + im->gdes[gdi].rpnp[rpi].data += + (diff / im->gdes[ptr].step) * + im->gdes[ptr].ds_cnt; + } + } + + if (steparray == NULL) { + rrd_set_error("rpn expressions without DEF" + " or CDEF variables are not supported"); + rpnstack_free(&rpnstack); + return -1; + } + steparray[stepcnt] = 0; + /* Now find the resulting step. All steps in all + * used RRAs have to be visited + */ + im->gdes[gdi].step = lcd(steparray); + free(steparray); + if ((im->gdes[gdi].data = (rrd_value_t*)malloc(((im->gdes[gdi].end - + im->gdes[gdi].start) + / im->gdes[gdi].step) + * sizeof(double))) == NULL) { + rrd_set_error("malloc im->gdes[gdi].data"); + rpnstack_free(&rpnstack); + return -1; + } + + /* Step through the new cdef results array and + * calculate the values + */ + for (now = im->gdes[gdi].start + im->gdes[gdi].step; + now <= im->gdes[gdi].end; now += im->gdes[gdi].step) { + rpnp_t *rpnp = im->gdes[gdi].rpnp; + + /* 3rd arg of rpn_calc is for OP_VARIABLE lookups; + * in this case we are advancing by timesteps; + * we use the fact that time_t is a synonym for long + */ + if (rpn_calc(rpnp, &rpnstack, (long) now, + im->gdes[gdi].data, ++dataidx) == -1) { + /* rpn_calc sets the error string */ + rpnstack_free(&rpnstack); + return -1; + } + } /* enumerate over time steps within a CDEF */ + break; + default: + continue; + } + } /* enumerate over CDEFs */ rpnstack_free(&rpnstack); return 0; } +/* from http://www.cygnus-software.com/papers/comparingfloats/comparingfloats.htm */ +/* yes we are loosing precision by doing tos with floats instead of doubles + but it seems more stable this way. */ + +static int AlmostEqual2sComplement( + float A, + float B, + int maxUlps) +{ + + int aInt = *(int *) &A; + int bInt = *(int *) &B; + int intDiff; + + /* Make sure maxUlps is non-negative and small enough that the + default NAN won't compare as equal to anything. */ + + /* assert(maxUlps > 0 && maxUlps < 4 * 1024 * 1024); */ + + /* Make aInt lexicographically ordered as a twos-complement int */ + + if (aInt < 0) + aInt = 0x80000000l - aInt; + + /* Make bInt lexicographically ordered as a twos-complement int */ + + if (bInt < 0) + bInt = 0x80000000l - bInt; + + intDiff = abs(aInt - bInt); + + if (intDiff <= maxUlps) + return 1; + + return 0; +} + /* massage data so, that we get one value for each x coordinate in the graph */ -int -data_proc( image_desc_t *im ){ - long i,ii; - double pixstep = (double)(im->end-im->start) - /(double)im->xsize; /* how much time - passes in one pixel */ - double paintval; - double minval=DNAN,maxval=DNAN; - - unsigned long gr_time; +int data_proc( + image_desc_t *im) +{ + long i, ii; + double pixstep = (double) (im->end - im->start) + / (double) im->xsize; /* how much time + passes in one pixel */ + double paintval; + double minval = DNAN, maxval = DNAN; + + unsigned long gr_time; /* memory for the processed data */ - for(i=0;igdes_c;i++){ - if((im->gdes[i].gf==GF_LINE) || - (im->gdes[i].gf==GF_AREA) || - (im->gdes[i].gf==GF_TICK) || - (im->gdes[i].gf==GF_STACK)){ - if((im->gdes[i].p_data = malloc((im->xsize +1) - * sizeof(rrd_value_t)))==NULL){ - rrd_set_error("malloc data_proc"); - return -1; - } - } + for (i = 0; i < im->gdes_c; i++) { + if ((im->gdes[i].gf == GF_LINE) || + (im->gdes[i].gf == GF_AREA) || (im->gdes[i].gf == GF_TICK)) { + if ((im->gdes[i].p_data = (rrd_value_t*)malloc((im->xsize + 1) + * sizeof(rrd_value_t))) == NULL) { + rrd_set_error("malloc data_proc"); + return -1; + } + } } - - for(i=0;ixsize;i++){ - long vidx; - gr_time = im->start+pixstep*i; /* time of the - current step */ - paintval=0.0; - - for(ii=0;iigdes_c;ii++){ - double value; - switch(im->gdes[ii].gf){ - case GF_LINE: - case GF_AREA: - case GF_TICK: - paintval = 0.0; - case GF_STACK: - vidx = im->gdes[ii].vidx; - - value = - im->gdes[vidx].data[ - ((unsigned long)floor( - (double)(gr_time-im->gdes[vidx].start) / im->gdes[vidx].step - ) - ) *im->gdes[vidx].ds_cnt - +im->gdes[vidx].ds]; - - if (! isnan(value)) { - paintval += value; - im->gdes[ii].p_data[i] = paintval; - /* GF_TICK: the data values are not relevant for min and max */ - if (finite(paintval) && im->gdes[ii].gf != GF_TICK ){ - if (isnan(minval) || paintval < minval) - minval = paintval; - if (isnan(maxval) || paintval > maxval) - maxval = paintval; - } - } else { - im->gdes[ii].p_data[i] = DNAN; - } - break; - case GF_PRINT: - case GF_GPRINT: - case GF_COMMENT: - case GF_HRULE: - case GF_VRULE: - case GF_DEF: - case GF_CDEF: - case GF_VDEF: - break; - } - } + + for (i = 0; i < im->xsize; i++) { /* for each pixel */ + long vidx; + + gr_time = im->start + pixstep * i; /* time of the current step */ + paintval = 0.0; + + for (ii = 0; ii < im->gdes_c; ii++) { + double value; + + switch (im->gdes[ii].gf) { + case GF_LINE: + case GF_AREA: + case GF_TICK: + if (!im->gdes[ii].stack) + paintval = 0.0; + value = im->gdes[ii].yrule; + if (isnan(value) || (im->gdes[ii].gf == GF_TICK)) { + /* The time of the data doesn't necessarily match + ** the time of the graph. Beware. + */ + vidx = im->gdes[ii].vidx; + if (im->gdes[vidx].gf == GF_VDEF) { + value = im->gdes[vidx].vf.val; + } else + if (((long int) gr_time >= + (long int) im->gdes[vidx].start) + && ((long int) gr_time <= + (long int) im->gdes[vidx].end)) { + value = im->gdes[vidx].data[(unsigned long) + floor((double) + (gr_time - + im->gdes[vidx]. + start) + / + im->gdes[vidx].step) + * im->gdes[vidx].ds_cnt + + im->gdes[vidx].ds]; + } else { + value = DNAN; + } + }; + + if (!isnan(value)) { + paintval += value; + im->gdes[ii].p_data[i] = paintval; + /* GF_TICK: the data values are not + ** relevant for min and max + */ + if (finite(paintval) && im->gdes[ii].gf != GF_TICK) { + if ((isnan(minval) || paintval < minval) && + !(im->logarithmic && paintval <= 0.0)) + minval = paintval; + if (isnan(maxval) || paintval > maxval) + maxval = paintval; + } + } else { + im->gdes[ii].p_data[i] = DNAN; + } + break; + case GF_STACK: + rrd_set_error + ("STACK should already be turned into LINE or AREA here"); + return -1; + break; + default: + break; + } + } } /* if min or max have not been asigned a value this is because there was no data in the graph ... this is not good ... lets set these to dummy values then ... */ - if (isnan(minval)) minval = 0.0; - if (isnan(maxval)) maxval = 1.0; - - /* adjust min and max values */ - if (isnan(im->minval) - || ((!im->logarithmic && !im->rigid) /* don't adjust low-end with log scale */ - && im->minval > minval)) - im->minval = minval; - if (isnan(im->maxval) - || (!im->rigid - && im->maxval < maxval)){ - if (im->logarithmic) - im->maxval = maxval * 1.1; - else - im->maxval = maxval; + if (im->logarithmic) { + if (isnan(minval) || isnan(maxval) || maxval <= 0) { + minval = 0.0; /* catching this right away below */ + maxval = 5.1; + } + /* in logarithm mode, where minval is smaller or equal + to 0 make the beast just way smaller than maxval */ + if (minval <= 0) { + minval = maxval / 10e8; + } + } else { + if (isnan(minval) || isnan(maxval)) { + minval = 0.0; + maxval = 1.0; + } + } + + /* adjust min and max values given by the user */ + /* for logscale we add something on top */ + if (isnan(im->minval) + || ((!im->rigid) && im->minval > minval) + ) { + if (im->logarithmic) + im->minval = minval / 2.0; + else + im->minval = minval; + } + if (isnan(im->maxval) + || (!im->rigid && im->maxval < maxval) + ) { + if (im->logarithmic) + im->maxval = maxval * 2.0; + else + im->maxval = maxval; + } + + /* make sure min is smaller than max */ + if (im->minval > im->maxval) { + if (im->minval > 0) + im->minval = 0.99 * im->maxval; + else + im->minval = 1.01 * im->maxval; } + /* make sure min and max are not equal */ - if (im->minval == im->maxval) { - im->maxval *= 1.01; - if (! im->logarithmic) { - im->minval *= 0.99; - } - - /* make sure min and max are not both zero */ - if (im->maxval == 0.0) { - im->maxval = 1.0; - } - + if (AlmostEqual2sComplement(im->minval, im->maxval, 4)) { + if (im->maxval > 0) + im->maxval *= 1.01; + else + im->maxval *= 0.99; + + /* make sure min and max are not both zero */ + if (AlmostEqual2sComplement(im->maxval, 0, 4)) { + im->maxval = 1.0; + } } return 0; } @@ -982,831 +1358,1408 @@ data_proc( image_desc_t *im ){ /* identify the point where the first gridline, label ... gets placed */ -time_t -find_first_time( - time_t start, /* what is the initial time */ - enum tmt_en baseint, /* what is the basic interval */ - long basestep /* how many if these do we jump a time */ +time_t find_first_time( + time_t start, /* what is the initial time */ + enum tmt_en baseint, /* what is the basic interval */ + long basestep /* how many if these do we jump a time */ ) { struct tm tm; - tm = *localtime(&start); - switch(baseint){ + + localtime_r(&start, &tm); + + switch (baseint) { case TMT_SECOND: - tm.tm_sec -= tm.tm_sec % basestep; break; - case TMT_MINUTE: - tm.tm_sec=0; - tm.tm_min -= tm.tm_min % basestep; - break; + tm. tm_sec -= tm.tm_sec % basestep; + + break; + case TMT_MINUTE: + tm. tm_sec = 0; + tm. tm_min -= tm.tm_min % basestep; + + break; case TMT_HOUR: - tm.tm_sec=0; - tm.tm_min = 0; - tm.tm_hour -= tm.tm_hour % basestep; break; + tm. tm_sec = 0; + tm. tm_min = 0; + tm. tm_hour -= tm.tm_hour % basestep; + + break; case TMT_DAY: - /* we do NOT look at the basestep for this ... */ - tm.tm_sec=0; - tm.tm_min = 0; - tm.tm_hour = 0; break; + /* we do NOT look at the basestep for this ... */ + tm. tm_sec = 0; + tm. tm_min = 0; + tm. tm_hour = 0; + + break; case TMT_WEEK: - /* we do NOT look at the basestep for this ... */ - tm.tm_sec=0; - tm.tm_min = 0; - tm.tm_hour = 0; - tm.tm_mday -= tm.tm_wday -1; /* -1 because we want the monday */ - if (tm.tm_wday==0) tm.tm_mday -= 7; /* we want the *previous* monday */ - break; + /* we do NOT look at the basestep for this ... */ + tm. tm_sec = 0; + tm. tm_min = 0; + tm. tm_hour = 0; + tm. tm_mday -= tm.tm_wday - 1; /* -1 because we want the monday */ + + if (tm.tm_wday == 0) + tm. tm_mday -= 7; /* we want the *previous* monday */ + + break; case TMT_MONTH: - tm.tm_sec=0; - tm.tm_min = 0; - tm.tm_hour = 0; - tm.tm_mday = 1; - tm.tm_mon -= tm.tm_mon % basestep; break; + tm. tm_sec = 0; + tm. tm_min = 0; + tm. tm_hour = 0; + tm. tm_mday = 1; + tm. tm_mon -= tm.tm_mon % basestep; + + break; case TMT_YEAR: - tm.tm_sec=0; - tm.tm_min = 0; - tm.tm_hour = 0; - tm.tm_mday = 1; - tm.tm_mon = 0; - tm.tm_year -= (tm.tm_year+1900) % basestep; - + tm. tm_sec = 0; + tm. tm_min = 0; + tm. tm_hour = 0; + tm. tm_mday = 1; + tm. tm_mon = 0; + tm. tm_year -= ( + tm.tm_year + 1900) %basestep; + } return mktime(&tm); } + /* identify the point where the next gridline, label ... gets placed */ -time_t -find_next_time( - time_t current, /* what is the initial time */ - enum tmt_en baseint, /* what is the basic interval */ - long basestep /* how many if these do we jump a time */ +time_t find_next_time( + time_t current, /* what is the initial time */ + enum tmt_en baseint, /* what is the basic interval */ + long basestep /* how many if these do we jump a time */ ) { struct tm tm; - time_t madetime; - tm = *localtime(¤t); + time_t madetime; + + localtime_r(¤t, &tm); + do { - switch(baseint){ - case TMT_SECOND: - tm.tm_sec += basestep; break; - case TMT_MINUTE: - tm.tm_min += basestep; break; - case TMT_HOUR: - tm.tm_hour += basestep; break; - case TMT_DAY: - tm.tm_mday += basestep; break; - case TMT_WEEK: - tm.tm_mday += 7*basestep; break; - case TMT_MONTH: - tm.tm_mon += basestep; break; - case TMT_YEAR: - tm.tm_year += basestep; - } - madetime = mktime(&tm); - } while (madetime == -1); /* this is necessary to skip impssible times - like the daylight saving time skips */ + switch (baseint) { + case TMT_SECOND: + tm. tm_sec += basestep; + + break; + case TMT_MINUTE: + tm. tm_min += basestep; + + break; + case TMT_HOUR: + tm. tm_hour += basestep; + + break; + case TMT_DAY: + tm. tm_mday += basestep; + + break; + case TMT_WEEK: + tm. tm_mday += 7 * basestep; + + break; + case TMT_MONTH: + tm. tm_mon += basestep; + + break; + case TMT_YEAR: + tm. tm_year += basestep; + } + madetime = mktime(&tm); + } while (madetime == -1); /* this is necessary to skip impssible times + like the daylight saving time skips */ return madetime; - + } /* calculate values required for PRINT and GPRINT functions */ -int -print_calc(image_desc_t *im, char ***prdata) +int print_calc( + image_desc_t *im) { - long i,ii,validsteps; - double printval; - time_t printtime; - int graphelement = 0; - long vidx; - int max_ii; - double magfact = -1; - char *si_symb = ""; - char *percent_s; - int prlines = 1; - if (im->imginfo) prlines++; - for(i=0;igdes_c;i++){ - switch(im->gdes[i].gf){ - case GF_PRINT: - prlines++; - if(((*prdata) = rrd_realloc((*prdata),prlines*sizeof(char *)))==NULL){ - rrd_set_error("realloc prdata"); - return 0; - } - case GF_GPRINT: - /* PRINT and GPRINT can now print VDEF generated values. - * There's no need to do any calculations on them as these - * calculations were already made. - */ - vidx = im->gdes[i].vidx; - if (im->gdes[vidx].gf==GF_VDEF) { /* simply use vals */ - printval = im->gdes[vidx].vf.val; - printtime = im->gdes[vidx].vf.when; - } else { /* need to calculate max,min,avg etcetera */ - max_ii =((im->gdes[vidx].end - - im->gdes[vidx].start) - / im->gdes[vidx].step - * im->gdes[vidx].ds_cnt); - printval = DNAN; - validsteps = 0; - for( ii=im->gdes[vidx].ds; - ii < max_ii; - ii+=im->gdes[vidx].ds_cnt){ - if (! finite(im->gdes[vidx].data[ii])) - continue; - if (isnan(printval)){ - printval = im->gdes[vidx].data[ii]; - validsteps++; - continue; - } - - switch (im->gdes[i].cf){ - case CF_HWPREDICT: - case CF_DEVPREDICT: - case CF_DEVSEASONAL: - case CF_SEASONAL: - case CF_AVERAGE: - validsteps++; - printval += im->gdes[vidx].data[ii]; - break; - case CF_MINIMUM: - printval = min( printval, im->gdes[vidx].data[ii]); - break; - case CF_FAILURES: - case CF_MAXIMUM: - printval = max( printval, im->gdes[vidx].data[ii]); - break; - case CF_LAST: - printval = im->gdes[vidx].data[ii]; - } - } - if (im->gdes[i].cf==CF_AVERAGE || im->gdes[i].cf > CF_LAST) { - if (validsteps > 1) { - printval = (printval / validsteps); - } - } - } /* prepare printval */ - - if (!strcmp(im->gdes[i].format,"%c")) { /* VDEF time print */ - if (im->gdes[i].gf == GF_PRINT){ - (*prdata)[prlines-2] = malloc((FMT_LEG_LEN+2)*sizeof(char)); - sprintf((*prdata)[prlines-2],"%s (%lu)", - ctime(&printtime),printtime); - (*prdata)[prlines-1] = NULL; - } else { - sprintf(im->gdes[i].legend,"%s (%lu)", - ctime(&printtime),printtime); - graphelement = 1; - } - } else { - if ((percent_s = strstr(im->gdes[i].format,"%S")) != NULL) { - /* Magfact is set to -1 upon entry to print_calc. If it - * is still less than 0, then we need to run auto_scale. - * Otherwise, put the value into the correct units. If - * the value is 0, then do not set the symbol or magnification - * so next the calculation will be performed again. */ - if (magfact < 0.0) { - auto_scale(im,&printval,&si_symb,&magfact); - if (printval == 0.0) - magfact = -1.0; - } else { - printval /= magfact; - } - *(++percent_s) = 's'; - } else if (strstr(im->gdes[i].format,"%s") != NULL) { - auto_scale(im,&printval,&si_symb,&magfact); - } - - if (im->gdes[i].gf == GF_PRINT){ - (*prdata)[prlines-2] = malloc((FMT_LEG_LEN+2)*sizeof(char)); - if (bad_format(im->gdes[i].format)) { - rrd_set_error("bad format for [G]PRINT in '%s'", im->gdes[i].format); - return -1; - } -#ifdef HAVE_SNPRINTF - snprintf((*prdata)[prlines-2],FMT_LEG_LEN,im->gdes[i].format,printval,si_symb); -#else - sprintf((*prdata)[prlines-2],im->gdes[i].format,printval,si_symb); -#endif - (*prdata)[prlines-1] = NULL; - } else { - /* GF_GPRINT */ - - if (bad_format(im->gdes[i].format)) { - rrd_set_error("bad format for [G]PRINT in '%s'", im->gdes[i].format); - return -1; - } + long i, ii, validsteps; + double printval; + struct tm tmvdef; + int graphelement = 0; + long vidx; + int max_ii; + double magfact = -1; + char *si_symb = ""; + char *percent_s; + int prline_cnt = 0; + + /* wow initializing tmvdef is quite a task :-) */ + time_t now = time(NULL); + + localtime_r(&now, &tmvdef); + for (i = 0; i < im->gdes_c; i++) { + vidx = im->gdes[i].vidx; + switch (im->gdes[i].gf) { + case GF_PRINT: + case GF_GPRINT: + /* PRINT and GPRINT can now print VDEF generated values. + * There's no need to do any calculations on them as these + * calculations were already made. + */ + if (im->gdes[vidx].gf == GF_VDEF) { /* simply use vals */ + printval = im->gdes[vidx].vf.val; + localtime_r(&im->gdes[vidx].vf.when, &tmvdef); + } else { /* need to calculate max,min,avg etcetera */ + max_ii = ((im->gdes[vidx].end - im->gdes[vidx].start) + / im->gdes[vidx].step * im->gdes[vidx].ds_cnt); + printval = DNAN; + validsteps = 0; + for (ii = im->gdes[vidx].ds; + ii < max_ii; ii += im->gdes[vidx].ds_cnt) { + if (!finite(im->gdes[vidx].data[ii])) + continue; + if (isnan(printval)) { + printval = im->gdes[vidx].data[ii]; + validsteps++; + continue; + } + + switch (im->gdes[i].cf) { + case CF_HWPREDICT: + case CF_MHWPREDICT: + case CF_DEVPREDICT: + case CF_DEVSEASONAL: + case CF_SEASONAL: + case CF_AVERAGE: + validsteps++; + printval += im->gdes[vidx].data[ii]; + break; + case CF_MINIMUM: + printval = min(printval, im->gdes[vidx].data[ii]); + break; + case CF_FAILURES: + case CF_MAXIMUM: + printval = max(printval, im->gdes[vidx].data[ii]); + break; + case CF_LAST: + printval = im->gdes[vidx].data[ii]; + } + } + if (im->gdes[i].cf == CF_AVERAGE || im->gdes[i].cf > CF_LAST) { + if (validsteps > 1) { + printval = (printval / validsteps); + } + } + } /* prepare printval */ + + if ((percent_s = strstr(im->gdes[i].format, "%S")) != NULL) { + /* Magfact is set to -1 upon entry to print_calc. If it + * is still less than 0, then we need to run auto_scale. + * Otherwise, put the value into the correct units. If + * the value is 0, then do not set the symbol or magnification + * so next the calculation will be performed again. */ + if (magfact < 0.0) { + auto_scale(im, &printval, &si_symb, &magfact); + if (printval == 0.0) + magfact = -1.0; + } else { + printval /= magfact; + } + *(++percent_s) = 's'; + } else if (strstr(im->gdes[i].format, "%s") != NULL) { + auto_scale(im, &printval, &si_symb, &magfact); + } + + if (im->gdes[i].gf == GF_PRINT) { + rrd_infoval_t prline; + + if (im->gdes[i].strftm) { + prline.u_str = (char*)malloc((FMT_LEG_LEN + 2) * sizeof(char)); + strftime(prline.u_str, + FMT_LEG_LEN, im->gdes[i].format, &tmvdef); + } else if (bad_format(im->gdes[i].format)) { + rrd_set_error + ("bad format for PRINT in '%s'", im->gdes[i].format); + return -1; + } else { + prline.u_str = + sprintf_alloc(im->gdes[i].format, printval, si_symb); + } + grinfo_push(im, + sprintf_alloc + ("print[%ld]", prline_cnt++), RD_I_STR, prline); + free(prline.u_str); + } else { + /* GF_GPRINT */ + + if (im->gdes[i].strftm) { + strftime(im->gdes[i].legend, + FMT_LEG_LEN, im->gdes[i].format, &tmvdef); + } else { + if (bad_format(im->gdes[i].format)) { + rrd_set_error + ("bad format for GPRINT in '%s'", + im->gdes[i].format); + return -1; + } #ifdef HAVE_SNPRINTF - snprintf(im->gdes[i].legend,FMT_LEG_LEN-2,im->gdes[i].format,printval,si_symb); + snprintf(im->gdes[i].legend, + FMT_LEG_LEN - 2, + im->gdes[i].format, printval, si_symb); #else - sprintf(im->gdes[i].legend,im->gdes[i].format,printval,si_symb); + sprintf(im->gdes[i].legend, + im->gdes[i].format, printval, si_symb); #endif - graphelement = 1; - } - } - break; + } + graphelement = 1; + } + break; + case GF_LINE: + case GF_AREA: + case GF_TICK: + graphelement = 1; + break; + case GF_HRULE: + if (isnan(im->gdes[i].yrule)) { /* we must set this here or the legend printer can not decide to print the legend */ + im->gdes[i].yrule = im->gdes[vidx].vf.val; + }; + graphelement = 1; + break; + case GF_VRULE: + if (im->gdes[i].xrule == 0) { /* again ... the legend printer needs it */ + im->gdes[i].xrule = im->gdes[vidx].vf.when; + }; + graphelement = 1; + break; case GF_COMMENT: - case GF_LINE: - case GF_AREA: - case GF_TICK: - case GF_STACK: - case GF_HRULE: - case GF_VRULE: - graphelement = 1; - break; - case GF_DEF: - case GF_CDEF: - case GF_VDEF: - break; - } + case GF_TEXTALIGN: + case GF_DEF: + case GF_CDEF: + case GF_VDEF: +#ifdef WITH_PIECHART + case GF_PART: +#endif + case GF_SHIFT: + case GF_XPORT: + break; + case GF_STACK: + rrd_set_error + ("STACK should already be turned into LINE or AREA here"); + return -1; + break; + } } return graphelement; } /* place legends with color spots */ -int -leg_place(image_desc_t *im) +int leg_place( + image_desc_t *im, + int *gY) { /* graph labels */ - int interleg = im->text_prop[TEXT_PROP_LEGEND].size*2.0; - int box =im->text_prop[TEXT_PROP_LEGEND].size*1.5; - int border = im->text_prop[TEXT_PROP_LEGEND].size*2.0; - int fill=0, fill_last; - int leg_c = 0; - int leg_x = border, leg_y = im->ygif; - int leg_cc; - int glue = 0; - int i,ii, mark = 0; - char prt_fctn; /*special printfunctions */ - int *legspace; - - if( !(im->extra_flags & NOLEGEND) ) { - if ((legspace = malloc(im->gdes_c*sizeof(int)))==NULL){ - rrd_set_error("malloc for legspace"); - return -1; - } - - for(i=0;igdes_c;i++){ - fill_last = fill; - - leg_cc = strlen(im->gdes[i].legend); - - /* is there a controle code ant the end of the legend string ? */ - if (leg_cc >= 2 && im->gdes[i].legend[leg_cc-2] == '\\') { - prt_fctn = im->gdes[i].legend[leg_cc-1]; - leg_cc -= 2; - im->gdes[i].legend[leg_cc] = '\0'; - } else { - prt_fctn = '\0'; - } - /* remove exess space */ - while (prt_fctn=='g' && - leg_cc > 0 && - im->gdes[i].legend[leg_cc-1]==' '){ - leg_cc--; - im->gdes[i].legend[leg_cc]='\0'; - } - if (leg_cc != 0 ){ - legspace[i]=(prt_fctn=='g' ? 0 : interleg); - - if (fill > 0){ - /* no interleg space if string ends in \g */ - fill += legspace[i]; - } - if (im->gdes[i].gf != GF_GPRINT && - im->gdes[i].gf != GF_COMMENT) { - fill += box; - } - fill += gfx_get_text_width(fill+border,im->text_prop[TEXT_PROP_LEGEND].font, - im->text_prop[TEXT_PROP_LEGEND].size, - im->tabwidth, - im->gdes[i].legend); - leg_c++; - } else { - legspace[i]=0; - } - /* who said there was a special tag ... ?*/ - if (prt_fctn=='g') { - prt_fctn = '\0'; - } - if (prt_fctn == '\0') { - if (i == im->gdes_c -1 ) prt_fctn ='l'; - - /* is it time to place the legends ? */ - if (fill > im->xgif - 2*border){ - if (leg_c > 1) { - /* go back one */ - i--; - fill = fill_last; - leg_c--; - prt_fctn = 'j'; - } else { - prt_fctn = 'l'; - } - - } - } - - - if (prt_fctn != '\0'){ - leg_x = border; - if (leg_c >= 2 && prt_fctn == 'j') { - glue = (im->xgif - fill - 2* border) / (leg_c-1); - } else { - glue = 0; - } - if (prt_fctn =='c') leg_x = (im->xgif - fill) / 2.0; - if (prt_fctn =='r') leg_x = im->xgif - fill - border; - - for(ii=mark;ii<=i;ii++){ - if(im->gdes[ii].legend[0]=='\0') - continue; - im->gdes[ii].leg_x = leg_x; - im->gdes[ii].leg_y = leg_y; - leg_x += - gfx_get_text_width(leg_x,im->text_prop[TEXT_PROP_LEGEND].font, - im->text_prop[TEXT_PROP_LEGEND].size, - im->tabwidth, - im->gdes[ii].legend) - + legspace[ii] - + glue; - if (im->gdes[ii].gf != GF_GPRINT && - im->gdes[ii].gf != GF_COMMENT) - leg_x += box; - } - leg_y = leg_y + im->text_prop[TEXT_PROP_LEGEND].size*1.2; - if (prt_fctn == 's') leg_y -= im->text_prop[TEXT_PROP_LEGEND].size*1.2; - fill = 0; - leg_c = 0; - mark = ii; - } - } - im->ygif = leg_y+6; - free(legspace); - } - return 0; -} + int interleg = im->text_prop[TEXT_PROP_LEGEND].size * 2.0; + int border = im->text_prop[TEXT_PROP_LEGEND].size * 2.0; + int fill = 0, fill_last; + int leg_c = 0; + double leg_x = border; + int leg_y = im->yimg; + int leg_y_prev = im->yimg; + int leg_cc; + double glue = 0; + int i, ii, mark = 0; + char default_txtalign = TXA_JUSTIFIED; /*default line orientation */ + int *legspace; + char *tab; + + if (!(im->extra_flags & NOLEGEND) & !(im->extra_flags & ONLY_GRAPH)) { + if ((legspace = (int*)malloc(im->gdes_c * sizeof(int))) == NULL) { + rrd_set_error("malloc for legspace"); + return -1; + } -/* create a grid on the graph. it determines what to do - from the values of xsize, start and end */ + for (i = 0; i < im->gdes_c; i++) { + char prt_fctn; /*special printfunctions */ + fill_last = fill; + /* hide legends for rules which are not displayed */ + if (im->gdes[i].gf == GF_TEXTALIGN) { + default_txtalign = im->gdes[i].txtalign; + } -/* the xaxis labels are determined from the number of seconds per pixel - in the requested graph */ + if (!(im->extra_flags & FORCE_RULES_LEGEND)) { + if (im->gdes[i].gf == GF_HRULE + && (im->gdes[i].yrule < + im->minval || im->gdes[i].yrule > im->maxval)) + im->gdes[i].legend[0] = '\0'; + if (im->gdes[i].gf == GF_VRULE + && (im->gdes[i].xrule < + im->start || im->gdes[i].xrule > im->end)) + im->gdes[i].legend[0] = '\0'; + } + /* turn \\t into tab */ + while ((tab = strstr(im->gdes[i].legend, "\\t"))) { + memmove(tab, tab + 1, strlen(tab)); + tab[0] = (char) 9; + } + leg_cc = strlen(im->gdes[i].legend); + /* is there a controle code at the end of the legend string ? */ + if (leg_cc >= 2 && im->gdes[i].legend[leg_cc - 2] == '\\') { + prt_fctn = im->gdes[i].legend[leg_cc - 1]; + leg_cc -= 2; + im->gdes[i].legend[leg_cc] = '\0'; + } else { + prt_fctn = '\0'; + } + /* only valid control codes */ + if (prt_fctn != 'l' && prt_fctn != 'n' && /* a synonym for l */ + prt_fctn != 'r' && + prt_fctn != 'j' && + prt_fctn != 'c' && + prt_fctn != 's' && prt_fctn != '\0' && prt_fctn != 'g') { + free(legspace); + rrd_set_error + ("Unknown control code at the end of '%s\\%c'", + im->gdes[i].legend, prt_fctn); + return -1; + } + /* \n -> \l */ + if (prt_fctn == 'n') { + prt_fctn = 'l'; + } + /* remove exess space from the end of the legend for \g */ + while (prt_fctn == 'g' && + leg_cc > 0 && im->gdes[i].legend[leg_cc - 1] == ' ') { + leg_cc--; + im->gdes[i].legend[leg_cc] = '\0'; + } -int -horizontal_grid(gfx_canvas_t *canvas, image_desc_t *im) -{ - double range; - double scaledrange; - int pixel,i; - int sgrid,egrid; - double gridstep; - double scaledstep; - char graph_label[100]; - double x0,x1,y0,y1; - int labfact,gridind; - int decimals, fractionals; - char labfmt[64]; - - labfact=2; - gridind=-1; - range = im->maxval - im->minval; - scaledrange = range / im->magfact; + if (leg_cc != 0) { - /* does the scale of this graph make it impossible to put lines - on it? If so, give up. */ - if (isnan(scaledrange)) { - return 0; - } + /* no interleg space if string ends in \g */ + legspace[i] = (prt_fctn == 'g' ? 0 : interleg); + if (fill > 0) { + fill += legspace[i]; + } + fill += + gfx_get_text_width(im, + fill + border, + im-> + text_prop + [TEXT_PROP_LEGEND]. + font_desc, + im->tabwidth, im->gdes[i].legend); + leg_c++; + } else { + legspace[i] = 0; + } + /* who said there was a special tag ... ? */ + if (prt_fctn == 'g') { + prt_fctn = '\0'; + } - /* find grid spaceing */ - pixel=1; - if(isnan(im->ygridstep)){ - if(im->extra_flags & ALTYGRID) { - /* find the value with max number of digits. Get number of digits */ - decimals = ceil(log10(max(fabs(im->maxval), fabs(im->minval)))); - if(decimals <= 0) /* everything is small. make place for zero */ - decimals = 1; - - fractionals = floor(log10(range)); - if(fractionals < 0) /* small amplitude. */ - sprintf(labfmt, "%%%d.%df", decimals - fractionals + 1, -fractionals + 1); - else - sprintf(labfmt, "%%%d.1f", decimals + 1); - gridstep = pow((double)10, (double)fractionals); - if(gridstep == 0) /* range is one -> 0.1 is reasonable scale */ - gridstep = 0.1; - /* should have at least 5 lines but no more then 15 */ - if(range/gridstep < 5) - gridstep /= 10; - if(range/gridstep > 15) - gridstep *= 10; - if(range/gridstep > 5) { - labfact = 1; - if(range/gridstep > 8) - labfact = 2; - } - else { - gridstep /= 5; - labfact = 5; - } - } - else { - for(i=0;ylab[i].grid > 0;i++){ - pixel = im->ysize / (scaledrange / ylab[i].grid); - if (gridind == -1 && pixel > 5) { - gridind = i; - break; - } - } - - for(i=0; i<4;i++) { - if (pixel * ylab[gridind].lfac[i] >= 2 * im->text_prop[TEXT_PROP_AXIS].size) { - labfact = ylab[gridind].lfac[i]; - break; - } - } - - gridstep = ylab[gridind].grid * im->magfact; - } - } else { - gridstep = im->ygridstep; - labfact = im->ylabfact; - } - - x0=im->xorigin; - x1=im->xorigin+im->xsize; - - sgrid = (int)( im->minval / gridstep - 1); - egrid = (int)( im->maxval / gridstep + 1); - scaledstep = gridstep/im->magfact; - for (i = sgrid; i <= egrid; i++){ - y0=ytr(im,gridstep*i); - if ( y0 >= im->yorigin-im->ysize - && y0 <= im->yorigin){ - if(i % labfact == 0){ - if (i==0 || im->symbol == ' ') { - if(scaledstep < 1){ - if(im->extra_flags & ALTYGRID) { - sprintf(graph_label,labfmt,scaledstep*i); - } - else { - sprintf(graph_label,"%4.1f",scaledstep*i); - } - } else { - sprintf(graph_label,"%4.0f",scaledstep*i); - } - }else { - if(scaledstep < 1){ - sprintf(graph_label,"%4.1f %c",scaledstep*i, im->symbol); - } else { - sprintf(graph_label,"%4.0f %c",scaledstep*i, im->symbol); - } - } - - gfx_new_text ( canvas, - x0-im->text_prop[TEXT_PROP_AXIS].size/1.5, y0, - im->graph_col[GRC_FONT], - im->text_prop[TEXT_PROP_AXIS].font, - im->text_prop[TEXT_PROP_AXIS].size, - im->tabwidth, 0.0, GFX_H_RIGHT, GFX_V_CENTER, - graph_label ); - gfx_new_line ( canvas, - x0-2,y0, - x1+2,y0, - MGRIDWIDTH, im->graph_col[GRC_MGRID] ); - - } else { - gfx_new_line ( canvas, - x0-1,y0, - x1+1,y0, - GRIDWIDTH, im->graph_col[GRC_GRID] ); - - } - } - } - return 1; + if (prt_fctn == '\0') { + if (i == im->gdes_c - 1 || fill > im->ximg - 2 * border) { + /* just one legend item is left right or center */ + switch (default_txtalign) { + case TXA_RIGHT: + prt_fctn = 'r'; + break; + case TXA_CENTER: + prt_fctn = 'c'; + break; + case TXA_JUSTIFIED: + prt_fctn = 'j'; + break; + default: + prt_fctn = 'l'; + break; + } + } + /* is it time to place the legends ? */ + if (fill > im->ximg - 2 * border) { + if (leg_c > 1) { + /* go back one */ + i--; + fill = fill_last; + leg_c--; + } + } + if (leg_c == 1 && prt_fctn == 'j') { + prt_fctn = 'l'; + } + } + + + if (prt_fctn != '\0') { + leg_x = border; + if (leg_c >= 2 && prt_fctn == 'j') { + glue = (double)(im->ximg - fill - 2 * border) / (double)(leg_c - 1); + } else { + glue = 0; + } + if (prt_fctn == 'c') + leg_x = (double)(im->ximg - fill) / 2.0; + if (prt_fctn == 'r') + leg_x = im->ximg - fill - border; + for (ii = mark; ii <= i; ii++) { + if (im->gdes[ii].legend[0] == '\0') + continue; /* skip empty legends */ + im->gdes[ii].leg_x = leg_x; + im->gdes[ii].leg_y = leg_y; + leg_x += + (double)gfx_get_text_width(im, leg_x, + im-> + text_prop + [TEXT_PROP_LEGEND]. + font_desc, + im->tabwidth, im->gdes[ii].legend) + +(double)legspace[ii] + + glue; + } + leg_y_prev = leg_y; + if (leg_x > border || prt_fctn == 's') + leg_y += im->text_prop[TEXT_PROP_LEGEND].size * 1.8; + if (prt_fctn == 's') + leg_y -= im->text_prop[TEXT_PROP_LEGEND].size; + fill = 0; + leg_c = 0; + mark = ii; + } + } + + if (im->extra_flags & FULL_SIZE_MODE) { + /* now for some backpaddeling. We have to shift up all the + legend items into the graph and tell the caller about the + space we used up. */ + long shift_up = leg_y - im->yimg - im->text_prop[TEXT_PROP_LEGEND].size * 1.8 + border * 0.7; + for (i = 0; i < im->gdes_c; i++) { + im->gdes[i].leg_y -= shift_up; + } + im->yorigin = im->yorigin - leg_y + im->yimg - im->text_prop[TEXT_PROP_LEGEND].size * 1.8 - border; + *gY = im->yorigin; + } else { + im->yimg = + leg_y - im->text_prop[TEXT_PROP_LEGEND].size * 1.8 + + border * 0.6; + } + free(legspace); + } + return 0; } -/* logaritmic horizontal grid */ -int -horizontal_log_grid(gfx_canvas_t *canvas, image_desc_t *im) +/* create a grid on the graph. it determines what to do + from the values of xsize, start and end */ + +/* the xaxis labels are determined from the number of seconds per pixel + in the requested graph */ + +int calc_horizontal_grid( + image_desc_t + *im) { - double pixpex; - int ii,i; - int minoridx=0, majoridx=0; - char graph_label[100]; - double x0,x1,y0,y1; - double value, pixperstep, minstep; + double range; + double scaledrange; + int pixel, i; + int gridind = 0; + int decimals, fractionals; + + im->ygrid_scale.labfact = 2; + range = im->maxval - im->minval; + scaledrange = range / im->magfact; + /* does the scale of this graph make it impossible to put lines + on it? If so, give up. */ + if (isnan(scaledrange)) { + return 0; + } /* find grid spaceing */ - pixpex= (double)im->ysize / (log10(im->maxval) - log10(im->minval)); - - if (isnan(pixpex)) { - return 0; - } - - for(i=0;yloglab[i][0] > 0;i++){ - minstep = log10(yloglab[i][0]); - for(ii=1;yloglab[i][ii+1] > 0;ii++){ - if(yloglab[i][ii+2]==0){ - minstep = log10(yloglab[i][ii+1])-log10(yloglab[i][ii]); - break; - } - } - pixperstep = pixpex * minstep; - if(pixperstep > 5){minoridx = i;} - if(pixperstep > 2 * im->text_prop[TEXT_PROP_LEGEND].size){majoridx = i;} - } - - x0=im->xorigin; - x1=im->xorigin+im->xsize; - /* paint minor grid */ - for (value = pow((double)10, log10(im->minval) - - fmod(log10(im->minval),log10(yloglab[minoridx][0]))); - value <= im->maxval; - value *= yloglab[minoridx][0]){ - if (value < im->minval) continue; - i=0; - while(yloglab[minoridx][++i] > 0){ - y0 = ytr(im,value * yloglab[minoridx][i]); - if (y0 <= im->yorigin - im->ysize) break; - gfx_new_line ( canvas, - x0-1,y0, - x1+1,y0, - GRIDWIDTH, im->graph_col[GRC_GRID] ); - } - } - - /* paint major grid and labels*/ - for (value = pow((double)10, log10(im->minval) - - fmod(log10(im->minval),log10(yloglab[majoridx][0]))); - value <= im->maxval; - value *= yloglab[majoridx][0]){ - if (value < im->minval) continue; - i=0; - while(yloglab[majoridx][++i] > 0){ - y0 = ytr(im,value * yloglab[majoridx][i]); - if (y0 <= im->yorigin - im->ysize) break; - gfx_new_line ( canvas, - x0-2,y0, - x1+2,y0, - MGRIDWIDTH, im->graph_col[GRC_MGRID] ); - - sprintf(graph_label,"%3.0e",value * yloglab[majoridx][i]); - gfx_new_text ( canvas, - x0-im->text_prop[TEXT_PROP_AXIS].size/1.5, y0, - im->graph_col[GRC_FONT], - im->text_prop[TEXT_PROP_AXIS].font, - im->text_prop[TEXT_PROP_AXIS].size, - im->tabwidth,0.0, GFX_H_RIGHT, GFX_V_CENTER, - graph_label ); - } - } - return 1; + pixel = 1; + if (isnan(im->ygridstep)) { + if (im->extra_flags & ALTYGRID) { + /* find the value with max number of digits. Get number of digits */ + decimals = + ceil(log10 + (max(fabs(im->maxval), fabs(im->minval)) * + im->viewfactor / im->magfact)); + if (decimals <= 0) /* everything is small. make place for zero */ + decimals = 1; + im->ygrid_scale.gridstep = + pow((double) 10, + floor(log10(range * im->viewfactor / im->magfact))) / + im->viewfactor * im->magfact; + if (im->ygrid_scale.gridstep == 0) /* range is one -> 0.1 is reasonable scale */ + im->ygrid_scale.gridstep = 0.1; + /* should have at least 5 lines but no more then 15 */ + if (range / im->ygrid_scale.gridstep < 5 + && im->ygrid_scale.gridstep >= 30) + im->ygrid_scale.gridstep /= 10; + if (range / im->ygrid_scale.gridstep > 15) + im->ygrid_scale.gridstep *= 10; + if (range / im->ygrid_scale.gridstep > 5) { + im->ygrid_scale.labfact = 1; + if (range / im->ygrid_scale.gridstep > 8 + || im->ygrid_scale.gridstep < + 1.8 * im->text_prop[TEXT_PROP_AXIS].size) + im->ygrid_scale.labfact = 2; + } else { + im->ygrid_scale.gridstep /= 5; + im->ygrid_scale.labfact = 5; + } + fractionals = + floor(log10 + (im->ygrid_scale.gridstep * + (double) im->ygrid_scale.labfact * im->viewfactor / + im->magfact)); + if (fractionals < 0) { /* small amplitude. */ + int len = decimals - fractionals + 1; + + if (im->unitslength < len + 2) + im->unitslength = len + 2; + sprintf(im->ygrid_scale.labfmt, + "%%%d.%df%s", len, + -fractionals, (im->symbol != ' ' ? " %c" : "")); + } else { + int len = decimals + 1; + + if (im->unitslength < len + 2) + im->unitslength = len + 2; + sprintf(im->ygrid_scale.labfmt, + "%%%d.0f%s", len, (im->symbol != ' ' ? " %c" : "")); + } + } else { /* classic rrd grid */ + for (i = 0; ylab[i].grid > 0; i++) { + pixel = im->ysize / (scaledrange / ylab[i].grid); + gridind = i; + if (pixel >= 5) + break; + } + + for (i = 0; i < 4; i++) { + if (pixel * ylab[gridind].lfac[i] >= + 1.8 * im->text_prop[TEXT_PROP_AXIS].size) { + im->ygrid_scale.labfact = ylab[gridind].lfac[i]; + break; + } + } + + im->ygrid_scale.gridstep = ylab[gridind].grid * im->magfact; + } + } else { + im->ygrid_scale.gridstep = im->ygridstep; + im->ygrid_scale.labfact = im->ylabfact; + } + return 1; +} + +int draw_horizontal_grid( + image_desc_t + *im) +{ + int i; + double scaledstep; + char graph_label[100]; + int nlabels = 0; + double X0 = im->xorigin; + double X1 = im->xorigin + im->xsize; + int sgrid = (int) (im->minval / im->ygrid_scale.gridstep - 1); + int egrid = (int) (im->maxval / im->ygrid_scale.gridstep + 1); + double MaxY; + double second_axis_magfact = 0; + char *second_axis_symb = ""; + + scaledstep = + im->ygrid_scale.gridstep / + (double) im->magfact * (double) im->viewfactor; + MaxY = scaledstep * (double) egrid; + for (i = sgrid; i <= egrid; i++) { + double Y0 = ytr(im, + im->ygrid_scale.gridstep * i); + double YN = ytr(im, + im->ygrid_scale.gridstep * (i + 1)); + + if (floor(Y0 + 0.5) >= + im->yorigin - im->ysize && floor(Y0 + 0.5) <= im->yorigin) { + /* Make sure at least 2 grid labels are shown, even if it doesn't agree + with the chosen settings. Add a label if required by settings, or if + there is only one label so far and the next grid line is out of bounds. */ + if (i % im->ygrid_scale.labfact == 0 + || (nlabels == 1 + && (YN < im->yorigin - im->ysize || YN > im->yorigin))) { + if (im->symbol == ' ') { + if (im->extra_flags & ALTYGRID) { + sprintf(graph_label, + im->ygrid_scale.labfmt, + scaledstep * (double) i); + } else { + if (MaxY < 10) { + sprintf(graph_label, "%4.1f", + scaledstep * (double) i); + } else { + sprintf(graph_label, "%4.0f", + scaledstep * (double) i); + } + } + } else { + char sisym = (i == 0 ? ' ' : im->symbol); + + if (im->extra_flags & ALTYGRID) { + sprintf(graph_label, + im->ygrid_scale.labfmt, + scaledstep * (double) i, sisym); + } else { + if (MaxY < 10) { + sprintf(graph_label, "%4.1f %c", + scaledstep * (double) i, sisym); + } else { + sprintf(graph_label, "%4.0f %c", + scaledstep * (double) i, sisym); + } + } + } + nlabels++; + if (im->second_axis_scale != 0){ + char graph_label_right[100]; + double sval = im->ygrid_scale.gridstep*(double)i*im->second_axis_scale+im->second_axis_shift; + if (im->second_axis_format[0] == '\0'){ + if (!second_axis_magfact){ + double dummy = im->ygrid_scale.gridstep*(double)(sgrid+egrid)/2.0*im->second_axis_scale+im->second_axis_shift; + auto_scale(im,&dummy,&second_axis_symb,&second_axis_magfact); + } + sval /= second_axis_magfact; + + if(MaxY < 10) { + sprintf(graph_label_right,"%5.1f %s",sval,second_axis_symb); + } else { + sprintf(graph_label_right,"%5.0f %s",sval,second_axis_symb); + } + } + else { + sprintf(graph_label_right,im->second_axis_format,sval); + } + gfx_text ( im, + X1+7, Y0, + im->graph_col[GRC_FONT], + im->text_prop[TEXT_PROP_AXIS].font_desc, + im->tabwidth,0.0, GFX_H_LEFT, GFX_V_CENTER, + graph_label_right ); + } + + gfx_text(im, + X0 - + im-> + text_prop[TEXT_PROP_AXIS]. + size, Y0, + im->graph_col[GRC_FONT], + im-> + text_prop[TEXT_PROP_AXIS]. + font_desc, + im->tabwidth, 0.0, + GFX_H_RIGHT, GFX_V_CENTER, graph_label); + gfx_line(im, X0 - 2, Y0, X0, Y0, + MGRIDWIDTH, im->graph_col[GRC_MGRID]); + gfx_line(im, X1, Y0, X1 + 2, Y0, + MGRIDWIDTH, im->graph_col[GRC_MGRID]); + gfx_dashed_line(im, X0 - 2, Y0, + X1 + 2, Y0, + MGRIDWIDTH, + im-> + graph_col + [GRC_MGRID], + im->grid_dash_on, im->grid_dash_off); + } else if (!(im->extra_flags & NOMINOR)) { + gfx_line(im, + X0 - 2, Y0, + X0, Y0, GRIDWIDTH, im->graph_col[GRC_GRID]); + gfx_line(im, X1, Y0, X1 + 2, Y0, + GRIDWIDTH, im->graph_col[GRC_GRID]); + gfx_dashed_line(im, X0 - 1, Y0, + X1 + 1, Y0, + GRIDWIDTH, + im-> + graph_col[GRC_GRID], + im->grid_dash_on, im->grid_dash_off); + } + } + } + return 1; } +/* this is frexp for base 10 */ +double frexp10( + double, + double *); +double frexp10( + double x, + double *e) +{ + double mnt; + int iexp; + + iexp = floor(log((double)fabs(x)) / log((double)10)); + mnt = x / pow(10.0, iexp); + if (mnt >= 10.0) { + iexp++; + mnt = x / pow(10.0, iexp); + } + *e = iexp; + return mnt; +} -void -vertical_grid( - gfx_canvas_t *canvas, - image_desc_t *im ) -{ - int xlab_sel; /* which sort of label and grid ? */ - time_t ti, tilab; - long factor; - char graph_label[100]; - double x0,y0,y1; /* points for filled graph and more*/ - + +/* logaritmic horizontal grid */ +int horizontal_log_grid( + image_desc_t + *im) +{ + double yloglab[][10] = { + { + 1.0, 10., 0.0, 0.0, 0.0, 0.0, 0.0, + 0.0, 0.0, 0.0}, { + 1.0, 5.0, 10., 0.0, 0.0, 0.0, 0.0, + 0.0, 0.0, 0.0}, { + 1.0, 2.0, 5.0, 7.0, 10., 0.0, 0.0, + 0.0, 0.0, 0.0}, { + 1.0, 2.0, 4.0, + 6.0, 8.0, 10., + 0.0, + 0.0, 0.0, 0.0}, { + 1.0, + 2.0, + 3.0, + 4.0, + 5.0, + 6.0, + 7.0, + 8.0, + 9.0, + 10.}, + { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} /* last line */ + }; + int i, j, val_exp, min_exp; + double nex; /* number of decades in data */ + double logscale; /* scale in logarithmic space */ + int exfrac = 1; /* decade spacing */ + int mid = -1; /* row in yloglab for major grid */ + double mspac; /* smallest major grid spacing (pixels) */ + int flab; /* first value in yloglab to use */ + double value, tmp, pre_value; + double X0, X1, Y0; + char graph_label[100]; + + nex = log10(im->maxval / im->minval); + logscale = im->ysize / nex; + /* major spacing for data with high dynamic range */ + while (logscale * exfrac < 3 * im->text_prop[TEXT_PROP_LEGEND].size) { + if (exfrac == 1) + exfrac = 3; + else + exfrac += 3; + } + + /* major spacing for less dynamic data */ + do { + /* search best row in yloglab */ + mid++; + for (i = 0; yloglab[mid][i + 1] < 10.0; i++); + mspac = logscale * log10(10.0 / yloglab[mid][i]); + } + while (mspac > + 2 * im->text_prop[TEXT_PROP_LEGEND].size && yloglab[mid][0] > 0); + if (mid) + mid--; + /* find first value in yloglab */ + for (flab = 0; + yloglab[mid][flab] < 10 + && frexp10(im->minval, &tmp) > yloglab[mid][flab]; flab++); + if (yloglab[mid][flab] == 10.0) { + tmp += 1.0; + flab = 0; + } + val_exp = tmp; + if (val_exp % exfrac) + val_exp += abs(-val_exp % exfrac); + X0 = im->xorigin; + X1 = im->xorigin + im->xsize; + /* draw grid */ + pre_value = DNAN; + while (1) { + + value = yloglab[mid][flab] * pow(10.0, val_exp); + if (AlmostEqual2sComplement(value, pre_value, 4)) + break; /* it seems we are not converging */ + pre_value = value; + Y0 = ytr(im, value); + if (floor(Y0 + 0.5) <= im->yorigin - im->ysize) + break; + /* major grid line */ + gfx_line(im, + X0 - 2, Y0, X0, Y0, MGRIDWIDTH, im->graph_col[GRC_MGRID]); + gfx_line(im, X1, Y0, X1 + 2, Y0, + MGRIDWIDTH, im->graph_col[GRC_MGRID]); + gfx_dashed_line(im, X0 - 2, Y0, + X1 + 2, Y0, + MGRIDWIDTH, + im-> + graph_col + [GRC_MGRID], im->grid_dash_on, im->grid_dash_off); + /* label */ + if (im->extra_flags & FORCE_UNITS_SI) { + int scale; + double pvalue; + char symbol; + + scale = floor(val_exp / 3.0); + if (value >= 1.0) + pvalue = pow(10.0, val_exp % 3); + else + pvalue = pow(10.0, ((val_exp + 1) % 3) + 2); + pvalue *= yloglab[mid][flab]; + if (((scale + si_symbcenter) < (int) sizeof(si_symbol)) + && ((scale + si_symbcenter) >= 0)) + symbol = si_symbol[scale + si_symbcenter]; + else + symbol = '?'; + sprintf(graph_label, "%3.0f %c", pvalue, symbol); + } else { + sprintf(graph_label, "%3.0e", value); + } + if (im->second_axis_scale != 0){ + char graph_label_right[100]; + double sval = value*im->second_axis_scale+im->second_axis_shift; + if (im->second_axis_format[0] == '\0'){ + if (im->extra_flags & FORCE_UNITS_SI) { + double mfac = 1; + char *symb = ""; + auto_scale(im,&sval,&symb,&mfac); + sprintf(graph_label_right,"%4.0f %s", sval,symb); + } + else { + sprintf(graph_label_right,"%3.0e", sval); + } + } + else { + sprintf(graph_label_right,im->second_axis_format,sval); + } + + gfx_text ( im, + X1+7, Y0, + im->graph_col[GRC_FONT], + im->text_prop[TEXT_PROP_AXIS].font_desc, + im->tabwidth,0.0, GFX_H_LEFT, GFX_V_CENTER, + graph_label_right ); + } + + gfx_text(im, + X0 - + im-> + text_prop[TEXT_PROP_AXIS]. + size, Y0, + im->graph_col[GRC_FONT], + im-> + text_prop[TEXT_PROP_AXIS]. + font_desc, + im->tabwidth, 0.0, + GFX_H_RIGHT, GFX_V_CENTER, graph_label); + /* minor grid */ + if (mid < 4 && exfrac == 1) { + /* find first and last minor line behind current major line + * i is the first line and j tha last */ + if (flab == 0) { + min_exp = val_exp - 1; + for (i = 1; yloglab[mid][i] < 10.0; i++); + i = yloglab[mid][i - 1] + 1; + j = 10; + } else { + min_exp = val_exp; + i = yloglab[mid][flab - 1] + 1; + j = yloglab[mid][flab]; + } + + /* draw minor lines below current major line */ + for (; i < j; i++) { + + value = i * pow(10.0, min_exp); + if (value < im->minval) + continue; + Y0 = ytr(im, value); + if (floor(Y0 + 0.5) <= im->yorigin - im->ysize) + break; + /* draw lines */ + gfx_line(im, + X0 - 2, Y0, + X0, Y0, GRIDWIDTH, im->graph_col[GRC_GRID]); + gfx_line(im, X1, Y0, X1 + 2, Y0, + GRIDWIDTH, im->graph_col[GRC_GRID]); + gfx_dashed_line(im, X0 - 1, Y0, + X1 + 1, Y0, + GRIDWIDTH, + im-> + graph_col[GRC_GRID], + im->grid_dash_on, im->grid_dash_off); + } + } else if (exfrac > 1) { + for (i = val_exp - exfrac / 3 * 2; i < val_exp; i += exfrac / 3) { + value = pow(10.0, i); + if (value < im->minval) + continue; + Y0 = ytr(im, value); + if (floor(Y0 + 0.5) <= im->yorigin - im->ysize) + break; + /* draw lines */ + gfx_line(im, + X0 - 2, Y0, + X0, Y0, GRIDWIDTH, im->graph_col[GRC_GRID]); + gfx_line(im, X1, Y0, X1 + 2, Y0, + GRIDWIDTH, im->graph_col[GRC_GRID]); + gfx_dashed_line(im, X0 - 1, Y0, + X1 + 1, Y0, + GRIDWIDTH, + im-> + graph_col[GRC_GRID], + im->grid_dash_on, im->grid_dash_off); + } + } + + /* next decade */ + if (yloglab[mid][++flab] == 10.0) { + flab = 0; + val_exp += exfrac; + } + } + + /* draw minor lines after highest major line */ + if (mid < 4 && exfrac == 1) { + /* find first and last minor line below current major line + * i is the first line and j tha last */ + if (flab == 0) { + min_exp = val_exp - 1; + for (i = 1; yloglab[mid][i] < 10.0; i++); + i = yloglab[mid][i - 1] + 1; + j = 10; + } else { + min_exp = val_exp; + i = yloglab[mid][flab - 1] + 1; + j = yloglab[mid][flab]; + } + + /* draw minor lines below current major line */ + for (; i < j; i++) { + + value = i * pow(10.0, min_exp); + if (value < im->minval) + continue; + Y0 = ytr(im, value); + if (floor(Y0 + 0.5) <= im->yorigin - im->ysize) + break; + /* draw lines */ + gfx_line(im, + X0 - 2, Y0, X0, Y0, GRIDWIDTH, im->graph_col[GRC_GRID]); + gfx_line(im, X1, Y0, X1 + 2, Y0, + GRIDWIDTH, im->graph_col[GRC_GRID]); + gfx_dashed_line(im, X0 - 1, Y0, + X1 + 1, Y0, + GRIDWIDTH, + im-> + graph_col[GRC_GRID], + im->grid_dash_on, im->grid_dash_off); + } + } + /* fancy minor gridlines */ + else if (exfrac > 1) { + for (i = val_exp - exfrac / 3 * 2; i < val_exp; i += exfrac / 3) { + value = pow(10.0, i); + if (value < im->minval) + continue; + Y0 = ytr(im, value); + if (floor(Y0 + 0.5) <= im->yorigin - im->ysize) + break; + /* draw lines */ + gfx_line(im, + X0 - 2, Y0, X0, Y0, GRIDWIDTH, im->graph_col[GRC_GRID]); + gfx_line(im, X1, Y0, X1 + 2, Y0, + GRIDWIDTH, im->graph_col[GRC_GRID]); + gfx_dashed_line(im, X0 - 1, Y0, + X1 + 1, Y0, + GRIDWIDTH, + im-> + graph_col[GRC_GRID], + im->grid_dash_on, im->grid_dash_off); + } + } + + return 1; +} + + +void vertical_grid( + image_desc_t *im) +{ + int xlab_sel; /* which sort of label and grid ? */ + time_t ti, tilab, timajor; + long factor; + char graph_label[100]; + double X0, Y0, Y1; /* points for filled graph and more */ + struct tm tm; /* the type of time grid is determined by finding the number of seconds per pixel in the graph */ - - - if(im->xlab_user.minsec == -1){ - factor=(im->end - im->start)/im->xsize; - xlab_sel=0; - while ( xlab[xlab_sel+1].minsec != -1 - && xlab[xlab_sel+1].minsec <= factor){ xlab_sel++; } - im->xlab_user.gridtm = xlab[xlab_sel].gridtm; - im->xlab_user.gridst = xlab[xlab_sel].gridst; - im->xlab_user.mgridtm = xlab[xlab_sel].mgridtm; - im->xlab_user.mgridst = xlab[xlab_sel].mgridst; - im->xlab_user.labtm = xlab[xlab_sel].labtm; - im->xlab_user.labst = xlab[xlab_sel].labst; - im->xlab_user.precis = xlab[xlab_sel].precis; - im->xlab_user.stst = xlab[xlab_sel].stst; + if (im->xlab_user.minsec == -1) { + factor = (im->end - im->start) / im->xsize; + xlab_sel = 0; + while (xlab[xlab_sel + 1].minsec != + -1 && xlab[xlab_sel + 1].minsec <= factor) { + xlab_sel++; + } /* pick the last one */ + while (xlab[xlab_sel - 1].minsec == + xlab[xlab_sel].minsec + && xlab[xlab_sel].length > (im->end - im->start)) { + xlab_sel--; + } /* go back to the smallest size */ + im->xlab_user.gridtm = xlab[xlab_sel].gridtm; + im->xlab_user.gridst = xlab[xlab_sel].gridst; + im->xlab_user.mgridtm = xlab[xlab_sel].mgridtm; + im->xlab_user.mgridst = xlab[xlab_sel].mgridst; + im->xlab_user.labtm = xlab[xlab_sel].labtm; + im->xlab_user.labst = xlab[xlab_sel].labst; + im->xlab_user.precis = xlab[xlab_sel].precis; + im->xlab_user.stst = xlab[xlab_sel].stst; } - - /* y coords are the same for every line ... */ - y0 = im->yorigin; - y1 = im->yorigin-im->ysize; - + /* y coords are the same for every line ... */ + Y0 = im->yorigin; + Y1 = im->yorigin - im->ysize; /* paint the minor grid */ - for(ti = find_first_time(im->start, - im->xlab_user.gridtm, - im->xlab_user.gridst); - ti < im->end; - ti = find_next_time(ti,im->xlab_user.gridtm,im->xlab_user.gridst) - ){ - /* are we inside the graph ? */ - if (ti < im->start || ti > im->end) continue; - x0 = xtr(im,ti); - gfx_new_line(canvas,x0,y0+1, x0,y1-1,GRIDWIDTH, im->graph_col[GRC_GRID]); - + if (!(im->extra_flags & NOMINOR)) { + for (ti = find_first_time(im->start, + im-> + xlab_user. + gridtm, + im-> + xlab_user. + gridst), + timajor = + find_first_time(im->start, + im->xlab_user. + mgridtm, + im->xlab_user. + mgridst); + ti < im->end; + ti = + find_next_time(ti, im->xlab_user.gridtm, im->xlab_user.gridst) + ) { + /* are we inside the graph ? */ + if (ti < im->start || ti > im->end) + continue; + while (timajor < ti) { + timajor = find_next_time(timajor, + im-> + xlab_user. + mgridtm, im->xlab_user.mgridst); + } + if (ti == timajor) + continue; /* skip as falls on major grid line */ + X0 = xtr(im, ti); + gfx_line(im, X0, Y1 - 2, X0, Y1, + GRIDWIDTH, im->graph_col[GRC_GRID]); + gfx_line(im, X0, Y0, X0, Y0 + 2, + GRIDWIDTH, im->graph_col[GRC_GRID]); + gfx_dashed_line(im, X0, Y0 + 1, X0, + Y1 - 1, GRIDWIDTH, + im-> + graph_col[GRC_GRID], + im->grid_dash_on, im->grid_dash_off); + } } /* paint the major grid */ - for(ti = find_first_time(im->start, - im->xlab_user.mgridtm, - im->xlab_user.mgridst); - ti < im->end; - ti = find_next_time(ti,im->xlab_user.mgridtm,im->xlab_user.mgridst) - ){ - /* are we inside the graph ? */ - if (ti < im->start || ti > im->end) continue; - x0 = xtr(im,ti); - gfx_new_line(canvas,x0,y0+2, x0,y1-2,MGRIDWIDTH, im->graph_col[GRC_MGRID]); - + for (ti = find_first_time(im->start, + im-> + xlab_user. + mgridtm, + im-> + xlab_user. + mgridst); + ti < im->end; + ti = find_next_time(ti, im->xlab_user.mgridtm, im->xlab_user.mgridst) + ) { + /* are we inside the graph ? */ + if (ti < im->start || ti > im->end) + continue; + X0 = xtr(im, ti); + gfx_line(im, X0, Y1 - 2, X0, Y1, + MGRIDWIDTH, im->graph_col[GRC_MGRID]); + gfx_line(im, X0, Y0, X0, Y0 + 3, + MGRIDWIDTH, im->graph_col[GRC_MGRID]); + gfx_dashed_line(im, X0, Y0 + 3, X0, + Y1 - 2, MGRIDWIDTH, + im-> + graph_col + [GRC_MGRID], im->grid_dash_on, im->grid_dash_off); } /* paint the labels below the graph */ - for(ti = find_first_time(im->start, - im->xlab_user.labtm, - im->xlab_user.labst); - ti <= im->end; - ti = find_next_time(ti,im->xlab_user.labtm,im->xlab_user.labst) - ){ - tilab= ti + im->xlab_user.precis/2; /* correct time for the label */ - + for (ti = + find_first_time(im->start - + im->xlab_user. + precis / 2, + im->xlab_user. + labtm, + im->xlab_user. + labst); + ti <= + im->end - + im->xlab_user.precis / 2; + ti = find_next_time(ti, im->xlab_user.labtm, im->xlab_user.labst) + ) { + tilab = ti + im->xlab_user.precis / 2; /* correct time for the label */ + /* are we inside the graph ? */ + if (tilab < im->start || tilab > im->end) + continue; #if HAVE_STRFTIME - strftime(graph_label,99,im->xlab_user.stst,localtime(&tilab)); + localtime_r(&tilab, &tm); + strftime(graph_label, 99, im->xlab_user.stst, &tm); #else # error "your libc has no strftime I guess we'll abort the exercise here." #endif - gfx_new_text ( canvas, - xtr(im,tilab), y0+im->text_prop[TEXT_PROP_AXIS].size/1.5, - im->graph_col[GRC_FONT], - im->text_prop[TEXT_PROP_AXIS].font, - im->text_prop[TEXT_PROP_AXIS].size, - im->tabwidth, 0.0, GFX_H_CENTER, GFX_V_TOP, - graph_label ); - + gfx_text(im, + xtr(im, tilab), + Y0 + 3, + im->graph_col[GRC_FONT], + im-> + text_prop[TEXT_PROP_AXIS]. + font_desc, + im->tabwidth, 0.0, + GFX_H_CENTER, GFX_V_TOP, graph_label); } } -void -axis_paint( - image_desc_t *im, - gfx_canvas_t *canvas - ) -{ +void axis_paint( + image_desc_t *im) +{ /* draw x and y axis */ - gfx_new_line ( canvas, im->xorigin+im->xsize,im->yorigin, - im->xorigin+im->xsize,im->yorigin-im->ysize, - GRIDWIDTH, im->graph_col[GRC_GRID]); - - gfx_new_line ( canvas, im->xorigin,im->yorigin-im->ysize, - im->xorigin+im->xsize,im->yorigin-im->ysize, - GRIDWIDTH, im->graph_col[GRC_GRID]); - - gfx_new_line ( canvas, im->xorigin-4,im->yorigin, - im->xorigin+im->xsize+4,im->yorigin, - MGRIDWIDTH, im->graph_col[GRC_GRID]); - - gfx_new_line ( canvas, im->xorigin,im->yorigin+4, - im->xorigin,im->yorigin-im->ysize-4, - MGRIDWIDTH, im->graph_col[GRC_GRID]); - - - /* arrow for X axis direction */ - gfx_new_area ( canvas, - im->xorigin+im->xsize+4, im->yorigin-3, - im->xorigin+im->xsize+4, im->yorigin+3, - im->xorigin+im->xsize+9, im->yorigin, - im->graph_col[GRC_ARROW]); - - - + /* gfx_line ( im->canvas, im->xorigin+im->xsize,im->yorigin, + im->xorigin+im->xsize,im->yorigin-im->ysize, + GRIDWIDTH, im->graph_col[GRC_AXIS]); + + gfx_line ( im->canvas, im->xorigin,im->yorigin-im->ysize, + im->xorigin+im->xsize,im->yorigin-im->ysize, + GRIDWIDTH, im->graph_col[GRC_AXIS]); */ + + gfx_line(im, im->xorigin - 4, + im->yorigin, + im->xorigin + im->xsize + + 4, im->yorigin, MGRIDWIDTH, im->graph_col[GRC_AXIS]); + gfx_line(im, im->xorigin, + im->yorigin + 4, + im->xorigin, + im->yorigin - im->ysize - + 4, MGRIDWIDTH, im->graph_col[GRC_AXIS]); + /* arrow for X and Y axis direction */ + gfx_new_area(im, im->xorigin + im->xsize + 2, im->yorigin - 3, im->xorigin + im->xsize + 2, im->yorigin + 3, im->xorigin + im->xsize + 7, im->yorigin, /* horyzontal */ + im->graph_col[GRC_ARROW]); + gfx_close_path(im); + gfx_new_area(im, im->xorigin - 3, im->yorigin - im->ysize - 2, im->xorigin + 3, im->yorigin - im->ysize - 2, im->xorigin, im->yorigin - im->ysize - 7, /* vertical */ + im->graph_col[GRC_ARROW]); + gfx_close_path(im); + if (im->second_axis_scale != 0){ + gfx_line ( im, im->xorigin+im->xsize,im->yorigin+4, + im->xorigin+im->xsize,im->yorigin-im->ysize-4, + MGRIDWIDTH, im->graph_col[GRC_AXIS]); + gfx_new_area ( im, + im->xorigin+im->xsize-2, im->yorigin-im->ysize-2, + im->xorigin+im->xsize+3, im->yorigin-im->ysize-2, + im->xorigin+im->xsize, im->yorigin-im->ysize-7, /* LINEOFFSET */ + im->graph_col[GRC_ARROW]); + gfx_close_path(im); + } + } -void -grid_paint( - image_desc_t *im, - gfx_canvas_t *canvas - - ) -{ - long i; - int boxH=8, boxV=8; - int res=0; - double x0,x1,x2,x3,y0,y1,y2,y3; /* points for filled graph and more*/ - gfx_node_t *node; - +void grid_paint( + image_desc_t *im) +{ + long i; + int res = 0; + double X0, Y0; /* points for filled graph and more */ + struct gfx_color_t water_color; /* draw 3d border */ - node = gfx_new_area (canvas, 0,im->ygif, 0,0, im->xgif, 0,im->graph_col[GRC_SHADEA]); - gfx_add_point( node , im->xgif - 2, 2 ); - gfx_add_point( node , 2,2 ); - gfx_add_point( node , 2,im->ygif-2 ); - gfx_add_point( node , 0,im->ygif ); - - node = gfx_new_area (canvas, 0,im->ygif, im->xgif,im->ygif, im->xgif,0,im->graph_col[GRC_SHADEB]); - gfx_add_point( node , im->xgif - 2, 2 ); - gfx_add_point( node , im->xgif-2,im->ygif-2 ); - gfx_add_point( node , 2,im->ygif-2 ); - gfx_add_point( node , 0,im->ygif ); - - - if (im->draw_x_grid == 1 ) - vertical_grid(canvas, im); - - if (im->draw_y_grid == 1){ - if(im->logarithmic){ - res = horizontal_log_grid(canvas,im); - } else { - res = horizontal_grid(canvas,im); - } - - /* dont draw horizontal grid if there is no min and max val */ - if (! res ) { - char *nodata = "No Data found"; - gfx_new_text(canvas,im->xgif/2, (2*im->yorigin-im->ysize) / 2, - im->graph_col[GRC_FONT], - im->text_prop[TEXT_PROP_AXIS].font, - im->text_prop[TEXT_PROP_AXIS].size, - im->tabwidth, 0.0, GFX_H_CENTER, GFX_V_CENTER, - nodata ); - } - } - - /* yaxis description */ - gfx_new_text( canvas, - 7, (im->yorigin - im->ysize/2), - im->graph_col[GRC_FONT], - im->text_prop[TEXT_PROP_AXIS].font, - im->text_prop[TEXT_PROP_AXIS].size, im->tabwidth, 270.0, - GFX_H_CENTER, GFX_V_CENTER, - im->ylegend); - + gfx_new_area(im, 0, im->yimg, + 2, im->yimg - 2, 2, 2, im->graph_col[GRC_SHADEA]); + gfx_add_point(im, im->ximg - 2, 2); + gfx_add_point(im, im->ximg, 0); + gfx_add_point(im, 0, 0); + gfx_close_path(im); + gfx_new_area(im, 2, im->yimg - 2, + im->ximg - 2, + im->yimg - 2, im->ximg - 2, 2, im->graph_col[GRC_SHADEB]); + gfx_add_point(im, im->ximg, 0); + gfx_add_point(im, im->ximg, im->yimg); + gfx_add_point(im, 0, im->yimg); + gfx_close_path(im); + if (im->draw_x_grid == 1) + vertical_grid(im); + if (im->draw_y_grid == 1) { + if (im->logarithmic) { + res = horizontal_log_grid(im); + } else { + res = draw_horizontal_grid(im); + } + + /* dont draw horizontal grid if there is no min and max val */ + if (!res) { + char *nodata = "No Data found"; + + gfx_text(im, im->ximg / 2, + (2 * im->yorigin - + im->ysize) / 2, + im->graph_col[GRC_FONT], + im-> + text_prop[TEXT_PROP_AXIS]. + font_desc, + im->tabwidth, 0.0, + GFX_H_CENTER, GFX_V_CENTER, nodata); + } + } + + /* yaxis unit description */ + if (im->ylegend[0] != '\0'){ + gfx_text(im, + 10, + (im->yorigin - + im->ysize / 2), + im->graph_col[GRC_FONT], + im-> + text_prop[TEXT_PROP_UNIT]. + font_desc, + im->tabwidth, + RRDGRAPH_YLEGEND_ANGLE, GFX_H_CENTER, GFX_V_CENTER, im->ylegend); + } + if (im->second_axis_legend[0] != '\0'){ + double Xylabel=gfx_get_text_width(im, 0, + im->text_prop[TEXT_PROP_AXIS].font_desc, + im->tabwidth, + "0") * im->unitslength + + im->text_prop[TEXT_PROP_UNIT].size *2; + gfx_text( im, + im->xorigin+im->xsize+Xylabel+8, (im->yorigin - im->ysize/2), + im->graph_col[GRC_FONT], + im->text_prop[TEXT_PROP_UNIT].font_desc, + im->tabwidth, + RRDGRAPH_YLEGEND_ANGLE, + GFX_H_CENTER, GFX_V_CENTER, + im->second_axis_legend); + } + /* graph title */ - gfx_new_text( canvas, - im->xgif/2, im->text_prop[TEXT_PROP_TITLE].size*1.5, - im->graph_col[GRC_FONT], - im->text_prop[TEXT_PROP_TITLE].font, - im->text_prop[TEXT_PROP_TITLE].size, im->tabwidth, 0.0, - GFX_H_CENTER, GFX_V_CENTER, - im->title); - - /* graph labels */ - if( !(im->extra_flags & NOLEGEND) ) { - for(i=0;igdes_c;i++){ - if(im->gdes[i].legend[0] =='\0') - continue; - - if(im->gdes[i].gf != GF_GPRINT && im->gdes[i].gf != GF_COMMENT){ - x0 = im->gdes[i].leg_x; - y0 = im->gdes[i].leg_y+1.0; - x1 = x0+boxH; - x2 = x0+boxH; - x3 = x0; - y1 = y0; - y2 = y0+boxV; - y3 = y0+boxV; - node = gfx_new_area(canvas, x0,y0,x1,y1,x2,y2 ,im->gdes[i].col); - gfx_add_point ( node, x3, y3 ); - gfx_add_point ( node, x0, y0 ); - node = gfx_new_line(canvas, x0,y0,x1,y1 ,GRIDWIDTH, im->graph_col[GRC_FRAME]); - gfx_add_point ( node, x2, y2 ); - gfx_add_point ( node, x3, y3 ); - gfx_add_point ( node, x0, y0 ); - - gfx_new_text ( canvas, x0+boxH+6, (y0+y2) / 2.0, - im->graph_col[GRC_FONT], - im->text_prop[TEXT_PROP_AXIS].font, - im->text_prop[TEXT_PROP_AXIS].size, - im->tabwidth,0.0, GFX_H_LEFT, GFX_V_CENTER, - im->gdes[i].legend ); - - } else { - x0 = im->gdes[i].leg_x; - y0 = im->gdes[i].leg_y; - - gfx_new_text ( canvas, x0, (y0+y2) / 2.0, - im->graph_col[GRC_FONT], - im->text_prop[TEXT_PROP_AXIS].font, - im->text_prop[TEXT_PROP_AXIS].size, - im->tabwidth,0.0, GFX_H_LEFT, GFX_V_BOTTOM, - im->gdes[i].legend ); - - } - } - } + gfx_text(im, + im->ximg / 2, 6, + im->graph_col[GRC_FONT], + im-> + text_prop[TEXT_PROP_TITLE]. + font_desc, + im->tabwidth, 0.0, GFX_H_CENTER, GFX_V_TOP, im->title); + /* rrdtool 'logo' */ + if (!(im->extra_flags & NO_RRDTOOL_TAG)){ + water_color = im->graph_col[GRC_FONT]; + water_color.alpha = 0.3; + gfx_text(im, im->ximg - 4, 5, + water_color, + im-> + text_prop[TEXT_PROP_WATERMARK]. + font_desc, im->tabwidth, + -90, GFX_H_LEFT, GFX_V_TOP, "RRDTOOL / TOBI OETIKER"); + } + /* graph watermark */ + if (im->watermark[0] != '\0') { + gfx_text(im, + im->ximg / 2, im->yimg - 6, + water_color, + im-> + text_prop[TEXT_PROP_WATERMARK]. + font_desc, im->tabwidth, 0, + GFX_H_CENTER, GFX_V_BOTTOM, im->watermark); + } + + /* graph labels */ + if (!(im->extra_flags & NOLEGEND) & !(im->extra_flags & ONLY_GRAPH)) { + for (i = 0; i < im->gdes_c; i++) { + if (im->gdes[i].legend[0] == '\0') + continue; + /* im->gdes[i].leg_y is the bottom of the legend */ + X0 = im->gdes[i].leg_x; + Y0 = im->gdes[i].leg_y; + gfx_text(im, X0, Y0, + im->graph_col[GRC_FONT], + im-> + text_prop + [TEXT_PROP_LEGEND].font_desc, + im->tabwidth, 0.0, + GFX_H_LEFT, GFX_V_BOTTOM, im->gdes[i].legend); + /* The legend for GRAPH items starts with "M " to have + enough space for the box */ + if (im->gdes[i].gf != GF_PRINT && + im->gdes[i].gf != GF_GPRINT && im->gdes[i].gf != GF_COMMENT) { + double boxH, boxV; + double X1, Y1; + + boxH = gfx_get_text_width(im, 0, + im-> + text_prop + [TEXT_PROP_LEGEND]. + font_desc, + im->tabwidth, "o") * 1.2; + boxV = boxH; + /* shift the box up a bit */ + Y0 -= boxV * 0.4; + /* make sure transparent colors show up the same way as in the graph */ + gfx_new_area(im, + X0, Y0 - boxV, + X0, Y0, X0 + boxH, Y0, im->graph_col[GRC_BACK]); + gfx_add_point(im, X0 + boxH, Y0 - boxV); + gfx_close_path(im); + gfx_new_area(im, X0, Y0 - boxV, X0, + Y0, X0 + boxH, Y0, im->gdes[i].col); + gfx_add_point(im, X0 + boxH, Y0 - boxV); + gfx_close_path(im); + cairo_save(im->cr); + cairo_new_path(im->cr); + cairo_set_line_width(im->cr, 1.0); + X1 = X0 + boxH; + Y1 = Y0 - boxV; + gfx_line_fit(im, &X0, &Y0); + gfx_line_fit(im, &X1, &Y1); + cairo_move_to(im->cr, X0, Y0); + cairo_line_to(im->cr, X1, Y0); + cairo_line_to(im->cr, X1, Y1); + cairo_line_to(im->cr, X0, Y1); + cairo_close_path(im->cr); + cairo_set_source_rgba(im->cr, + im-> + graph_col + [GRC_FRAME]. + red, + im-> + graph_col + [GRC_FRAME]. + green, + im-> + graph_col + [GRC_FRAME]. + blue, im->graph_col[GRC_FRAME].alpha); + if (im->gdes[i].dash) { + /* make box borders in legend dashed if the graph is dashed */ + double dashes[] = { + 3.0 + }; + cairo_set_dash(im->cr, dashes, 1, 0.0); + } + cairo_stroke(im->cr); + cairo_restore(im->cr); + } + } + } } @@ -1814,315 +2767,806 @@ grid_paint( * lazy check make sure we rely need to create this graph *****************************************************/ -int lazy_check(image_desc_t *im){ - FILE *fd = NULL; - int size = 1; - struct stat gifstat; - - if (im->lazy == 0) return 0; /* no lazy option */ - if (stat(im->graphfile,&gifstat) != 0) - return 0; /* can't stat */ +int lazy_check( + image_desc_t *im) +{ + FILE *fd = NULL; + int size = 1; + struct stat imgstat; + + if (im->lazy == 0) + return 0; /* no lazy option */ + if (strlen(im->graphfile) == 0) + return 0; /* inmemory option */ + if (stat(im->graphfile, &imgstat) != 0) + return 0; /* can't stat */ /* one pixel in the existing graph is more then what we would change here ... */ - if (time(NULL) - gifstat.st_mtime > - (im->end - im->start) / im->xsize) - return 0; - if ((fd = fopen(im->graphfile,"rb")) == NULL) - return 0; /* the file does not exist */ + if (time(NULL) - imgstat.st_mtime > (im->end - im->start) / im->xsize) + return 0; + if ((fd = fopen(im->graphfile, "rb")) == NULL) + return 0; /* the file does not exist */ switch (im->imgformat) { - case IF_GIF: - size = GifSize(fd,&(im->xgif),&(im->ygif)); - break; case IF_PNG: - size = PngSize(fd,&(im->xgif),&(im->ygif)); - break; + size = PngSize(fd, &(im->ximg), &(im->yimg)); + break; + default: + size = 1; } fclose(fd); return size; } -/* draw that picture thing ... */ -int -graph_paint(image_desc_t *im, char ***calcpr) +int graph_size_location( + image_desc_t + *im, + int elements) { - int i,ii; - int lazy = lazy_check(im); - FILE *fo; - gfx_canvas_t *canvas; - gfx_node_t *node; - - double areazero = 0.0; - enum gf_en stack_gf = GF_PRINT; - graph_desc_t *lastgdes = NULL; - - /* if we are lazy and there is nothing to PRINT ... quit now */ - if (lazy && im->prt_c==0) return 0; - - /* pull the data from the rrd files ... */ - - if(data_fetch(im)==-1) - return -1; - - /* evaluate VDEF and CDEF operations ... */ - if(data_calc(im)==-1) - return -1; - - /* calculate and PRINT and GPRINT definitions. We have to do it at - * this point because it will affect the length of the legends - * if there are no graph elements we stop here ... - * if we are lazy, try to quit ... - */ - i=print_calc(im,calcpr); - if(i<0) return -1; - if(i==0 || lazy) return 0; - - /* get actual drawing data and find min and max values*/ - if(data_proc(im)==-1) - return -1; - - if(!im->logarithmic){si_unit(im);} /* identify si magnitude Kilo, Mega Giga ? */ - - if(!im->rigid && ! im->logarithmic) - expand_range(im); /* make sure the upper and lower limit are - sensible values */ - - /* init xtr and ytr */ - /* determine the actual size of the gif to draw. The size given - on the cmdline is the graph area. But we need more as we have - draw labels and other things outside the graph area */ - - - im->xorigin = 10 + 9 * im->text_prop[TEXT_PROP_LEGEND].size; - - xtr(im,0); - - im->yorigin = 10 + im->ysize; - - ytr(im,DNAN); - - if(im->title[0] != '\0') - im->yorigin += im->text_prop[TEXT_PROP_TITLE].size*3+4; - - im->xgif=20+im->xsize + im->xorigin; - im->ygif= im->yorigin+2* im->text_prop[TEXT_PROP_LEGEND].size; - - /* determine where to place the legends onto the graphics. - and set im->ygif to match space requirements for text */ - if(leg_place(im)==-1) - return -1; + /* The actual size of the image to draw is determined from + ** several sources. The size given on the command line is + ** the graph area but we need more as we have to draw labels + ** and other things outside the graph area + */ - canvas=gfx_new_canvas(); - - /* the actual graph is created by going through the individual - graph elements and then drawing them */ - - node=gfx_new_area ( canvas, - 0, 0, - im->xgif, 0, - im->xgif, im->ygif, - im->graph_col[GRC_BACK]); - - gfx_add_point(node,0, im->ygif); - - node=gfx_new_area ( canvas, - im->xorigin, im->yorigin, - im->xorigin + im->xsize, im->yorigin, - im->xorigin + im->xsize, im->yorigin-im->ysize, - im->graph_col[GRC_CANVAS]); - - gfx_add_point(node,im->xorigin, im->yorigin - im->ysize); - - - if (im->minval > 0.0) - areazero = im->minval; - if (im->maxval < 0.0) - areazero = im->maxval; - - axis_paint(im,canvas); - - - for(i=0;igdes_c;i++){ - switch(im->gdes[i].gf){ - case GF_CDEF: - case GF_VDEF: - case GF_DEF: - case GF_PRINT: - case GF_GPRINT: - case GF_COMMENT: - case GF_HRULE: - case GF_VRULE: - break; - case GF_TICK: - for (ii = 0; ii < im->xsize; ii++) - { - if (!isnan(im->gdes[i].p_data[ii]) && - im->gdes[i].p_data[ii] > 0.0) - { - /* generate a tick */ - gfx_new_line(canvas, im -> xorigin + ii, - im -> yorigin - (im -> gdes[i].yrule * im -> ysize), - im -> xorigin + ii, - im -> yorigin, - 1.0, - im -> gdes[i].col ); - } - } - break; - case GF_LINE: - case GF_AREA: - stack_gf = im->gdes[i].gf; - case GF_STACK: - /* fix data points at oo and -oo */ - for(ii=0;iixsize;ii++){ - if (isinf(im->gdes[i].p_data[ii])){ - if (im->gdes[i].p_data[ii] > 0) { - im->gdes[i].p_data[ii] = im->maxval ; - } else { - im->gdes[i].p_data[ii] = im->minval ; - } - - } - } /* for */ + int Xvertical = 0, Ytitle = + 0, Xylabel = 0, Xmain = 0, Ymain = + 0, Yxlabel = 0, Xspacing = 15, Yspacing = 15, Ywatermark = 4; + + if (im->extra_flags & ONLY_GRAPH) { + im->xorigin = 0; + im->ximg = im->xsize; + im->yimg = im->ysize; + im->yorigin = im->ysize; + ytr(im, DNAN); + return 0; + } + + /** +---+-----------------------------------+ + ** | y |...............graph title.........| + ** | +---+-------------------------------+ + ** | a | y | | + ** | x | | | + ** | i | a | | + ** | s | x | main graph area | + ** | | i | | + ** | t | s | | + ** | i | | | + ** | t | l | | + ** | l | b +-------------------------------+ + ** | e | l | x axis labels | + ** +---+---+-------------------------------+ + ** |....................legends............| + ** +---------------------------------------+ + ** | watermark | + ** +---------------------------------------+ + */ + + if (im->ylegend[0] != '\0') { + Xvertical = im->text_prop[TEXT_PROP_UNIT].size * 2; + } + + if (im->title[0] != '\0') { + /* The title is placed "inbetween" two text lines so it + ** automatically has some vertical spacing. The horizontal + ** spacing is added here, on each side. + */ + /* if necessary, reduce the font size of the title until it fits the image width */ + Ytitle = im->text_prop[TEXT_PROP_TITLE].size * 2.6 + 10; + } + + if (elements) { + if (im->draw_x_grid) { + Yxlabel = im->text_prop[TEXT_PROP_AXIS].size * 2.5; + } + if (im->draw_y_grid || im->forceleftspace) { + Xylabel = + gfx_get_text_width(im, 0, + im-> + text_prop + [TEXT_PROP_AXIS]. + font_desc, + im->tabwidth, "0") * im->unitslength; + } + } + + if (im->extra_flags & FULL_SIZE_MODE) { + /* The actual size of the image to draw has been determined by the user. + ** The graph area is the space remaining after accounting for the legend, + ** the watermark, the axis labels, and the title. + */ + im->xorigin = 0; + im->ximg = im->xsize; + im->yimg = im->ysize; + im->yorigin = im->ysize; + Xmain = im->ximg; + Ymain = im->yimg; + /* Now calculate the total size. Insert some spacing where + desired. im->xorigin and im->yorigin need to correspond + with the lower left corner of the main graph area or, if + this one is not set, the imaginary box surrounding the + pie chart area. */ + /* Initial size calculation for the main graph area */ + Xmain = im->ximg - Xylabel - 3 * Xspacing; + + im->xorigin = Xspacing + Xylabel; + + if (Xvertical) { /* unit description */ + Xmain -= Xvertical; + im->xorigin += Xvertical; + } + + /* adjust space for second axis */ + if (im->second_axis_scale != 0){ + Xmain -= Xylabel + Xspacing; + } + if (im->extra_flags & NO_RRDTOOL_TAG){ + Xmain += Xspacing; + } + if (im->second_axis_legend[0] != '\0' ) { + Xmain -= im->text_prop[TEXT_PROP_UNIT].size * 1.5; + } + + im->xsize = Xmain; + + xtr(im, 0); + /* The vertical size of the image is known in advance. The main graph area + ** (Ymain) and im->yorigin must be set according to the space requirements + ** of the legend and the axis labels. + */ + if (im->extra_flags & NOLEGEND) { + im->yorigin = im->yimg - + im->text_prop[TEXT_PROP_AXIS].size * 2.5 - Yspacing; + Ymain = im->yorigin; + } + else { + /* Determine where to place the legends onto the image. + ** Set Ymain and adjust im->yorigin to match the space requirements. + */ + if (leg_place(im, &Ymain) == -1) + return -1; + } + + + /* remove title space *or* some padding above the graph from the main graph area */ + if (Ytitle) { + Ymain -= Ytitle; + } else { + Ymain -= 1.5 * Yspacing; + } + + /* watermark doesn't seem to effect the vertical size of the main graph area, oh well! */ + if (im->watermark[0] != '\0') { + Ymain -= Ywatermark; + } + + im->ysize = Ymain; + } else { /* dimension options -width and -height refer to the dimensions of the main graph area */ + + /* The actual size of the image to draw is determined from + ** several sources. The size given on the command line is + ** the graph area but we need more as we have to draw labels + ** and other things outside the graph area. + */ + + if (im->ylegend[0] != '\0') { + Xvertical = im->text_prop[TEXT_PROP_UNIT].size * 2; + } + + + if (im->title[0] != '\0') { + /* The title is placed "inbetween" two text lines so it + ** automatically has some vertical spacing. The horizontal + ** spacing is added here, on each side. + */ + /* don't care for the with of the title + Xtitle = gfx_get_text_width(im->canvas, 0, + im->text_prop[TEXT_PROP_TITLE].font_desc, + im->tabwidth, + im->title, 0) + 2*Xspacing; */ + Ytitle = im->text_prop[TEXT_PROP_TITLE].size * 2.6 + 10; + } + + if (elements) { + Xmain = im->xsize; + Ymain = im->ysize; + } + /* Now calculate the total size. Insert some spacing where + desired. im->xorigin and im->yorigin need to correspond + with the lower left corner of the main graph area or, if + this one is not set, the imaginary box surrounding the + pie chart area. */ + + /* The legend width cannot yet be determined, as a result we + ** have problems adjusting the image to it. For now, we just + ** forget about it at all; the legend will have to fit in the + ** size already allocated. + */ + im->ximg = Xylabel + Xmain + 2 * Xspacing; + + if (im->second_axis_scale != 0){ + im->ximg += Xylabel + Xspacing; + } + if (im->extra_flags & NO_RRDTOOL_TAG){ + im->ximg -= Xspacing; + } + + if (Xmain) + im->ximg += Xspacing; + im->xorigin = Xspacing + Xylabel; + /* the length of the title should not influence with width of the graph + if (Xtitle > im->ximg) im->ximg = Xtitle; */ + if (Xvertical) { /* unit description */ + im->ximg += Xvertical; + im->xorigin += Xvertical; + } + if (im->second_axis_legend[0] != '\0' ) { + im->ximg += Xvertical; + } - if (im->gdes[i].col != 0x0){ - /* GF_LINE and friend */ - if(stack_gf == GF_LINE ){ - node = NULL; - for(ii=1;iixsize;ii++){ - if ( ! isnan(im->gdes[i].p_data[ii-1]) - && ! isnan(im->gdes[i].p_data[ii])){ - if (node == NULL){ - node = gfx_new_line(canvas, - ii-1+im->xorigin,ytr(im,im->gdes[i].p_data[ii-1]), - ii+im->xorigin,ytr(im,im->gdes[i].p_data[ii]), - im->gdes[i].linewidth, - im->gdes[i].col); - } else { - gfx_add_point(node,ii+im->xorigin,ytr(im,im->gdes[i].p_data[ii])); - } - } else { - node = NULL; - } - } + xtr(im, 0); + /* The vertical size is interesting... we need to compare + ** the sum of {Ytitle, Ymain, Yxlabel, Ylegend, Ywatermark} with + ** Yvertical however we need to know {Ytitle+Ymain+Yxlabel} + ** in order to start even thinking about Ylegend or Ywatermark. + ** + ** Do it in three portions: First calculate the inner part, + ** then do the legend, then adjust the total height of the img, + ** adding space for a watermark if one exists; + */ + /* reserve space for main and/or pie */ + im->yimg = Ymain + Yxlabel; + im->yorigin = im->yimg - Yxlabel; + /* reserve space for the title *or* some padding above the graph */ + if (Ytitle) { + im->yimg += Ytitle; + im->yorigin += Ytitle; } else { - int area_start=-1; - node = NULL; - for(ii=1;iixsize;ii++){ - /* open an area */ - if ( ! isnan(im->gdes[i].p_data[ii-1]) - && ! isnan(im->gdes[i].p_data[ii])){ - if (node == NULL){ - float ybase = 0.0; - if (im->gdes[i].gf == GF_STACK) { - ybase = ytr(im,lastgdes->p_data[ii-1]); + im->yimg += 1.5 * Yspacing; + im->yorigin += 1.5 * Yspacing; + } + /* reserve space for padding below the graph */ + im->yimg += Yspacing; + /* Determine where to place the legends onto the image. + ** Adjust im->yimg to match the space requirements. + */ + if (leg_place(im, 0) == -1) + return -1; + if (im->watermark[0] != '\0') { + im->yimg += Ywatermark; + } + } + + ytr(im, DNAN); + return 0; +} + +static cairo_status_t cairo_output( + void *closure, + const unsigned char + *data, + unsigned int length) +{ + image_desc_t *im = (image_desc_t*)closure; + + im->rendered_image = + (unsigned char*)realloc(im->rendered_image, im->rendered_image_size + length); + if (im->rendered_image == NULL) + return CAIRO_STATUS_WRITE_ERROR; + memcpy(im->rendered_image + im->rendered_image_size, data, length); + im->rendered_image_size += length; + return CAIRO_STATUS_SUCCESS; +} + +/* draw that picture thing ... */ +int graph_paint( + image_desc_t *im) +{ + int i, ii; + int lazy = lazy_check(im); + double areazero = 0.0; + graph_desc_t *lastgdes = NULL; + rrd_infoval_t info; + +// PangoFontMap *font_map = pango_cairo_font_map_get_default(); + + /* if we want and can be lazy ... quit now */ + if (lazy) { + info.u_cnt = im->ximg; + grinfo_push(im, sprintf_alloc("image_width"), RD_I_CNT, info); + info.u_cnt = im->yimg; + grinfo_push(im, sprintf_alloc("image_height"), RD_I_CNT, info); + return 0; + } + /* pull the data from the rrd files ... */ + if (data_fetch(im) == -1) + return -1; + /* evaluate VDEF and CDEF operations ... */ + if (data_calc(im) == -1) + return -1; + /* calculate and PRINT and GPRINT definitions. We have to do it at + * this point because it will affect the length of the legends + * if there are no graph elements (i==0) we stop here ... + * if we are lazy, try to quit ... + */ + i = print_calc(im); + if (i < 0) + return -1; + + if ((i == 0) || lazy) + return 0; + +/************************************************************** + *** Calculating sizes and locations became a bit confusing *** + *** so I moved this into a separate function. *** + **************************************************************/ + if (graph_size_location(im, i) == -1) + return -1; + + info.u_cnt = im->xorigin; + grinfo_push(im, sprintf_alloc("graph_left"), RD_I_CNT, info); + info.u_cnt = im->yorigin - im->ysize; + grinfo_push(im, sprintf_alloc("graph_top"), RD_I_CNT, info); + info.u_cnt = im->xsize; + grinfo_push(im, sprintf_alloc("graph_width"), RD_I_CNT, info); + info.u_cnt = im->ysize; + grinfo_push(im, sprintf_alloc("graph_height"), RD_I_CNT, info); + info.u_cnt = im->ximg; + grinfo_push(im, sprintf_alloc("image_width"), RD_I_CNT, info); + info.u_cnt = im->yimg; + grinfo_push(im, sprintf_alloc("image_height"), RD_I_CNT, info); + + /* get actual drawing data and find min and max values */ + if (data_proc(im) == -1) + return -1; + if (!im->logarithmic) { + si_unit(im); + } + + /* identify si magnitude Kilo, Mega Giga ? */ + if (!im->rigid && !im->logarithmic) + expand_range(im); /* make sure the upper and lower limit are + sensible values */ + + info.u_val = im->minval; + grinfo_push(im, sprintf_alloc("value_min"), RD_I_VAL, info); + info.u_val = im->maxval; + grinfo_push(im, sprintf_alloc("value_max"), RD_I_VAL, info); + + if (!calc_horizontal_grid(im)) + return -1; + /* reset precalc */ + ytr(im, DNAN); +/* if (im->gridfit) + apply_gridfit(im); */ + /* the actual graph is created by going through the individual + graph elements and then drawing them */ + cairo_surface_destroy(im->surface); + switch (im->imgformat) { + case IF_PNG: + im->surface = + cairo_image_surface_create(CAIRO_FORMAT_ARGB32, + im->ximg * im->zoom, + im->yimg * im->zoom); + break; + case IF_PDF: + im->gridfit = 0; + im->surface = strlen(im->graphfile) + ? cairo_pdf_surface_create(im->graphfile, im->ximg * im->zoom, + im->yimg * im->zoom) + : cairo_pdf_surface_create_for_stream + (&cairo_output, im, im->ximg * im->zoom, im->yimg * im->zoom); + break; + case IF_EPS: + im->gridfit = 0; + im->surface = strlen(im->graphfile) + ? + cairo_ps_surface_create(im->graphfile, im->ximg * im->zoom, + im->yimg * im->zoom) + : cairo_ps_surface_create_for_stream + (&cairo_output, im, im->ximg * im->zoom, im->yimg * im->zoom); + break; + case IF_SVG: + im->gridfit = 0; + im->surface = strlen(im->graphfile) + ? + cairo_svg_surface_create(im-> + graphfile, + im->ximg * im->zoom, im->yimg * im->zoom) + : cairo_svg_surface_create_for_stream + (&cairo_output, im, im->ximg * im->zoom, im->yimg * im->zoom); + cairo_svg_surface_restrict_to_version + (im->surface, CAIRO_SVG_VERSION_1_1); + break; + }; + cairo_destroy(im->cr); + im->cr = cairo_create(im->surface); + cairo_set_antialias(im->cr, im->graph_antialias); + cairo_scale(im->cr, im->zoom, im->zoom); +// pango_cairo_font_map_set_resolution(PANGO_CAIRO_FONT_MAP(font_map), 100); + gfx_new_area(im, 0, 0, 0, im->yimg, + im->ximg, im->yimg, im->graph_col[GRC_BACK]); + gfx_add_point(im, im->ximg, 0); + gfx_close_path(im); + gfx_new_area(im, im->xorigin, + im->yorigin, + im->xorigin + + im->xsize, im->yorigin, + im->xorigin + + im->xsize, + im->yorigin - im->ysize, im->graph_col[GRC_CANVAS]); + gfx_add_point(im, im->xorigin, im->yorigin - im->ysize); + gfx_close_path(im); + cairo_rectangle(im->cr, im->xorigin, im->yorigin - im->ysize - 1.0, + im->xsize, im->ysize + 2.0); + cairo_clip(im->cr); + if (im->minval > 0.0) + areazero = im->minval; + if (im->maxval < 0.0) + areazero = im->maxval; + for (i = 0; i < im->gdes_c; i++) { + switch (im->gdes[i].gf) { + case GF_CDEF: + case GF_VDEF: + case GF_DEF: + case GF_PRINT: + case GF_GPRINT: + case GF_COMMENT: + case GF_TEXTALIGN: + case GF_HRULE: + case GF_VRULE: + case GF_XPORT: + case GF_SHIFT: + break; + case GF_TICK: + for (ii = 0; ii < im->xsize; ii++) { + if (!isnan(im->gdes[i].p_data[ii]) + && im->gdes[i].p_data[ii] != 0.0) { + if (im->gdes[i].yrule > 0) { + gfx_line(im, + im->xorigin + ii, + im->yorigin + 1.0, + im->xorigin + ii, + im->yorigin - + im->gdes[i].yrule * + im->ysize, 1.0, im->gdes[i].col); + } else if (im->gdes[i].yrule < 0) { + gfx_line(im, + im->xorigin + ii, + im->yorigin - im->ysize - 1.0, + im->xorigin + ii, + im->yorigin - im->ysize - + im->gdes[i]. + yrule * + im->ysize, 1.0, im->gdes[i].col); + } + } + } + break; + case GF_LINE: + case GF_AREA: + /* fix data points at oo and -oo */ + for (ii = 0; ii < im->xsize; ii++) { + if (isinf(im->gdes[i].p_data[ii])) { + if (im->gdes[i].p_data[ii] > 0) { + im->gdes[i].p_data[ii] = im->maxval; + } else { + im->gdes[i].p_data[ii] = im->minval; + } + + } + } /* for */ + + /* ******************************************************* + a ___. (a,t) + | | ___ + ____| | | | + | |___| + -------|--t-1--t-------------------------------- + + if we know the value at time t was a then + we draw a square from t-1 to t with the value a. + + ********************************************************* */ + if (im->gdes[i].col.alpha != 0.0) { + /* GF_LINE and friend */ + if (im->gdes[i].gf == GF_LINE) { + double last_y = 0.0; + int draw_on = 0; + + cairo_save(im->cr); + cairo_new_path(im->cr); + cairo_set_line_width(im->cr, im->gdes[i].linewidth); + if (im->gdes[i].dash) { + cairo_set_dash(im->cr, + im->gdes[i].p_dashes, + im->gdes[i].ndash, im->gdes[i].offset); + } + + for (ii = 1; ii < im->xsize; ii++) { + if (isnan(im->gdes[i].p_data[ii]) + || (im->slopemode == 1 + && isnan(im->gdes[i].p_data[ii - 1]))) { + draw_on = 0; + continue; + } + if (draw_on == 0) { + last_y = ytr(im, im->gdes[i].p_data[ii]); + if (im->slopemode == 0) { + double x = ii - 1 + im->xorigin; + double y = last_y; + + gfx_line_fit(im, &x, &y); + cairo_move_to(im->cr, x, y); + x = ii + im->xorigin; + y = last_y; + gfx_line_fit(im, &x, &y); + cairo_line_to(im->cr, x, y); + } else { + double x = ii - 1 + im->xorigin; + double y = + ytr(im, im->gdes[i].p_data[ii - 1]); + gfx_line_fit(im, &x, &y); + cairo_move_to(im->cr, x, y); + x = ii + im->xorigin; + y = last_y; + gfx_line_fit(im, &x, &y); + cairo_line_to(im->cr, x, y); + } + draw_on = 1; + } else { + double x1 = ii + im->xorigin; + double y1 = ytr(im, im->gdes[i].p_data[ii]); + + if (im->slopemode == 0 + && !AlmostEqual2sComplement(y1, last_y, 4)) { + double x = ii - 1 + im->xorigin; + double y = y1; + + gfx_line_fit(im, &x, &y); + cairo_line_to(im->cr, x, y); + }; + last_y = y1; + gfx_line_fit(im, &x1, &y1); + cairo_line_to(im->cr, x1, y1); + }; + } + cairo_set_source_rgba(im->cr, + im->gdes[i]. + col.red, + im->gdes[i]. + col.green, + im->gdes[i]. + col.blue, im->gdes[i].col.alpha); + cairo_set_line_cap(im->cr, CAIRO_LINE_CAP_ROUND); + cairo_set_line_join(im->cr, CAIRO_LINE_JOIN_ROUND); + cairo_stroke(im->cr); + cairo_restore(im->cr); } else { - ybase = ytr(im,areazero); + int idxI = -1; + double *foreY = + (double *) malloc(sizeof(double) * im->xsize * 2); + double *foreX = + (double *) malloc(sizeof(double) * im->xsize * 2); + double *backY = + (double *) malloc(sizeof(double) * im->xsize * 2); + double *backX = + (double *) malloc(sizeof(double) * im->xsize * 2); + int drawem = 0; + + for (ii = 0; ii <= im->xsize; ii++) { + double ybase, ytop; + + if (idxI > 0 && (drawem != 0 || ii == im->xsize)) { + int cntI = 1; + int lastI = 0; + + while (cntI < idxI + && + AlmostEqual2sComplement(foreY + [lastI], + foreY[cntI], 4) + && + AlmostEqual2sComplement(foreY + [lastI], + foreY + [cntI + 1], 4)) { + cntI++; + } + gfx_new_area(im, + backX[0], backY[0], + foreX[0], foreY[0], + foreX[cntI], + foreY[cntI], im->gdes[i].col); + while (cntI < idxI) { + lastI = cntI; + cntI++; + while (cntI < idxI + && + AlmostEqual2sComplement(foreY + [lastI], + foreY[cntI], 4) + && + AlmostEqual2sComplement(foreY + [lastI], + foreY + [cntI + + 1], 4)) { + cntI++; + } + gfx_add_point(im, foreX[cntI], foreY[cntI]); + } + gfx_add_point(im, backX[idxI], backY[idxI]); + while (idxI > 1) { + lastI = idxI; + idxI--; + while (idxI > 1 + && + AlmostEqual2sComplement(backY + [lastI], + backY[idxI], 4) + && + AlmostEqual2sComplement(backY + [lastI], + backY + [idxI + - 1], 4)) { + idxI--; + } + gfx_add_point(im, backX[idxI], backY[idxI]); + } + idxI = -1; + drawem = 0; + gfx_close_path(im); + } + if (drawem != 0) { + drawem = 0; + idxI = -1; + } + if (ii == im->xsize) + break; + if (im->slopemode == 0 && ii == 0) { + continue; + } + if (isnan(im->gdes[i].p_data[ii])) { + drawem = 1; + continue; + } + ytop = ytr(im, im->gdes[i].p_data[ii]); + if (lastgdes && im->gdes[i].stack) { + ybase = ytr(im, lastgdes->p_data[ii]); + } else { + ybase = ytr(im, areazero); + } + if (ybase == ytop) { + drawem = 1; + continue; + } + + if (ybase > ytop) { + double extra = ytop; + + ytop = ybase; + ybase = extra; + } + if (im->slopemode == 0) { + backY[++idxI] = ybase - 0.2; + backX[idxI] = ii + im->xorigin - 1; + foreY[idxI] = ytop + 0.2; + foreX[idxI] = ii + im->xorigin - 1; + } + backY[++idxI] = ybase - 0.2; + backX[idxI] = ii + im->xorigin; + foreY[idxI] = ytop + 0.2; + foreX[idxI] = ii + im->xorigin; + } + /* close up any remaining area */ + free(foreY); + free(foreX); + free(backY); + free(backX); + } /* else GF_LINE */ + } + /* if color != 0x0 */ + /* make sure we do not run into trouble when stacking on NaN */ + for (ii = 0; ii < im->xsize; ii++) { + if (isnan(im->gdes[i].p_data[ii])) { + if (lastgdes && (im->gdes[i].stack)) { + im->gdes[i].p_data[ii] = lastgdes->p_data[ii]; + } else { + im->gdes[i].p_data[ii] = areazero; + } } - area_start = ii-1; - node = gfx_new_area(canvas, - ii-1+im->xorigin,ybase, - ii-1+im->xorigin,ytr(im,im->gdes[i].p_data[ii-1]), - ii+im->xorigin,ytr(im,im->gdes[i].p_data[ii]), - im->gdes[i].col - ); - } else { - gfx_add_point(node,ii+im->xorigin,ytr(im,im->gdes[i].p_data[ii])); - } - } - - if ( node != NULL && (ii+1==im->xsize || isnan(im->gdes[i].p_data[ii]) )){ - /* GF_AREA STACK type*/ - if (im->gdes[i].gf == GF_STACK ) { - int iii; - for (iii=ii-1;iii>area_start;iii--){ - gfx_add_point(node,iii+im->xorigin,ytr(im,lastgdes->p_data[iii])); + } + lastgdes = &(im->gdes[i]); + break; + case GF_STACK: + rrd_set_error + ("STACK should already be turned into LINE or AREA here"); + return -1; + break; + } /* switch */ + } + cairo_reset_clip(im->cr); + + /* grid_paint also does the text */ + if (!(im->extra_flags & ONLY_GRAPH)) + grid_paint(im); + if (!(im->extra_flags & ONLY_GRAPH)) + axis_paint(im); + /* the RULES are the last thing to paint ... */ + for (i = 0; i < im->gdes_c; i++) { + + switch (im->gdes[i].gf) { + case GF_HRULE: + if (im->gdes[i].yrule >= im->minval + && im->gdes[i].yrule <= im->maxval) { + cairo_save(im->cr); + if (im->gdes[i].dash) { + cairo_set_dash(im->cr, + im->gdes[i].p_dashes, + im->gdes[i].ndash, im->gdes[i].offset); } - } else { - gfx_add_point(node,ii+im->xorigin,ytr(im,areazero)); - }; - node=NULL; - }; - } - } /* else GF_LINE */ - } /* if color != 0x0 */ - /* make sure we do not run into trouble when stacking on NaN */ - for(ii=0;iixsize;ii++){ - if (isnan(im->gdes[i].p_data[ii])) { - double ybase = 0.0; - if (lastgdes) { - ybase = ytr(im,lastgdes->p_data[ii-1]); - }; - if (isnan(ybase) || !lastgdes ){ - ybase = ytr(im,areazero); - } - im->gdes[i].p_data[ii] = ybase; - } - } - lastgdes = &(im->gdes[i]); - break; - } /* switch */ - } - grid_paint(im,canvas); - - /* the RULES are the last thing to paint ... */ - for(i=0;igdes_c;i++){ - - switch(im->gdes[i].gf){ - case GF_HRULE: - printf("DEBUG: HRULE at %f\n",im->gdes[i].yrule); - if(isnan(im->gdes[i].yrule)) { /* fetch variable */ - im->gdes[i].yrule = im->gdes[im->gdes[i].vidx].vf.val; - }; - if(im->gdes[i].yrule >= im->minval - && im->gdes[i].yrule <= im->maxval) - gfx_new_line(canvas, - im->xorigin,ytr(im,im->gdes[i].yrule), - im->xorigin+im->xsize,ytr(im,im->gdes[i].yrule), - 1.0,im->gdes[i].col); - break; - case GF_VRULE: - if(im->gdes[i].xrule == 0) { /* fetch variable */ - im->gdes[i].xrule = im->gdes[im->gdes[i].vidx].vf.when; - }; - if(im->gdes[i].xrule >= im->start - && im->gdes[i].xrule <= im->end) - gfx_new_line(canvas, - xtr(im,im->gdes[i].xrule),im->yorigin, - xtr(im,im->gdes[i].xrule),im->yorigin-im->ysize, - 1.0,im->gdes[i].col); - break; + gfx_line(im, im->xorigin, + ytr(im, im->gdes[i].yrule), + im->xorigin + im->xsize, + ytr(im, im->gdes[i].yrule), 1.0, im->gdes[i].col); + cairo_stroke(im->cr); + cairo_restore(im->cr); + } + break; + case GF_VRULE: + if (im->gdes[i].xrule >= im->start + && im->gdes[i].xrule <= im->end) { + cairo_save(im->cr); + if (im->gdes[i].dash) { + cairo_set_dash(im->cr, + im->gdes[i].p_dashes, + im->gdes[i].ndash, im->gdes[i].offset); + } + gfx_line(im, + xtr(im, im->gdes[i].xrule), + im->yorigin, xtr(im, + im-> + gdes[i]. + xrule), + im->yorigin - im->ysize, 1.0, im->gdes[i].col); + cairo_stroke(im->cr); + cairo_restore(im->cr); + } + break; + default: + break; + } + } + + + switch (im->imgformat) { + case IF_PNG: + { + cairo_status_t status; + + status = strlen(im->graphfile) ? + cairo_surface_write_to_png(im->surface, im->graphfile) + : cairo_surface_write_to_png_stream(im->surface, &cairo_output, + im); + + if (status != CAIRO_STATUS_SUCCESS) { + rrd_set_error("Could not save png to '%s'", im->graphfile); + return 1; + } + break; + } default: - break; + if (strlen(im->graphfile)) { + cairo_show_page(im->cr); + } else { + cairo_surface_finish(im->surface); + } + break; } - } - - if (strcmp(im->graphfile,"-")==0) { -#ifdef WIN32 - /* Change translation mode for stdout to BINARY */ - _setmode( _fileno( stdout ), O_BINARY ); -#endif - fo = stdout; - } else { - if ((fo = fopen(im->graphfile,"wb")) == NULL) { - rrd_set_error("Opening '%s' for write: %s",im->graphfile, - strerror(errno)); - return (-1); - } - } - switch (im->imgformat) { - case IF_GIF: - break; - case IF_PNG: - gfx_render_png (canvas,im->xgif,im->ygif,im->zoom,0x0,fo); - break; - } - if (strcmp(im->graphfile,"-") != 0) - fclose(fo); - - gfx_destroy(canvas); - return 0; + return 0; } @@ -2130,1032 +3574,1361 @@ graph_paint(image_desc_t *im, char ***calcpr) * graph stuff *****************************************************/ -int -gdes_alloc(image_desc_t *im){ - - long def_step = (im->end-im->start)/im->xsize; - - if (im->step > def_step) /* step can be increassed ... no decreassed */ - def_step = im->step; +int gdes_alloc( + image_desc_t *im) +{ im->gdes_c++; - - if ((im->gdes = (graph_desc_t *) rrd_realloc(im->gdes, (im->gdes_c) - * sizeof(graph_desc_t)))==NULL){ - rrd_set_error("realloc graph_descs"); - return -1; - } - - - im->gdes[im->gdes_c-1].step=def_step; - im->gdes[im->gdes_c-1].start=im->start; - im->gdes[im->gdes_c-1].end=im->end; - im->gdes[im->gdes_c-1].vname[0]='\0'; - im->gdes[im->gdes_c-1].data=NULL; - im->gdes[im->gdes_c-1].ds_namv=NULL; - im->gdes[im->gdes_c-1].data_first=0; - im->gdes[im->gdes_c-1].p_data=NULL; - im->gdes[im->gdes_c-1].rpnp=NULL; - im->gdes[im->gdes_c-1].col = 0x0; - im->gdes[im->gdes_c-1].legend[0]='\0'; - im->gdes[im->gdes_c-1].rrd[0]='\0'; - im->gdes[im->gdes_c-1].ds=-1; - im->gdes[im->gdes_c-1].p_data=NULL; + if ((im->gdes = (graph_desc_t *) + rrd_realloc(im->gdes, (im->gdes_c) + * sizeof(graph_desc_t))) == NULL) { + rrd_set_error("realloc graph_descs"); + return -1; + } + + + im->gdes[im->gdes_c - 1].step = im->step; + im->gdes[im->gdes_c - 1].step_orig = im->step; + im->gdes[im->gdes_c - 1].stack = 0; + im->gdes[im->gdes_c - 1].linewidth = 0; + im->gdes[im->gdes_c - 1].debug = 0; + im->gdes[im->gdes_c - 1].start = im->start; + im->gdes[im->gdes_c - 1].start_orig = im->start; + im->gdes[im->gdes_c - 1].end = im->end; + im->gdes[im->gdes_c - 1].end_orig = im->end; + im->gdes[im->gdes_c - 1].vname[0] = '\0'; + im->gdes[im->gdes_c - 1].data = NULL; + im->gdes[im->gdes_c - 1].ds_namv = NULL; + im->gdes[im->gdes_c - 1].data_first = 0; + im->gdes[im->gdes_c - 1].p_data = NULL; + im->gdes[im->gdes_c - 1].rpnp = NULL; + im->gdes[im->gdes_c - 1].p_dashes = NULL; + im->gdes[im->gdes_c - 1].shift = 0.0; + im->gdes[im->gdes_c - 1].dash = 0; + im->gdes[im->gdes_c - 1].ndash = 0; + im->gdes[im->gdes_c - 1].offset = 0; + im->gdes[im->gdes_c - 1].col.red = 0.0; + im->gdes[im->gdes_c - 1].col.green = 0.0; + im->gdes[im->gdes_c - 1].col.blue = 0.0; + im->gdes[im->gdes_c - 1].col.alpha = 0.0; + im->gdes[im->gdes_c - 1].legend[0] = '\0'; + im->gdes[im->gdes_c - 1].format[0] = '\0'; + im->gdes[im->gdes_c - 1].strftm = 0; + im->gdes[im->gdes_c - 1].rrd[0] = '\0'; + im->gdes[im->gdes_c - 1].ds = -1; + im->gdes[im->gdes_c - 1].cf_reduce = CF_AVERAGE; + im->gdes[im->gdes_c - 1].cf = CF_AVERAGE; + im->gdes[im->gdes_c - 1].yrule = DNAN; + im->gdes[im->gdes_c - 1].xrule = 0; return 0; } /* copies input untill the first unescaped colon is found or until input ends. backslashes have to be escaped as well */ -int -scan_for_col(char *input, int len, char *output) +int scan_for_col( + const char *const input, + int len, + char *const output) { - int inp,outp=0; - for (inp=0; - inp < len && - input[inp] != ':' && - input[inp] != '\0'; - inp++){ - if (input[inp] == '\\' && - input[inp+1] != '\0' && - (input[inp+1] == '\\' || - input[inp+1] == ':')){ - output[outp++] = input[++inp]; - } - else { - output[outp++] = input[inp]; - } + int inp, outp = 0; + + for (inp = 0; inp < len && input[inp] != ':' && input[inp] != '\0'; inp++) { + if (input[inp] == '\\' + && input[inp + 1] != '\0' + && (input[inp + 1] == '\\' || input[inp + 1] == ':')) { + output[outp++] = input[++inp]; + } else { + output[outp++] = input[inp]; + } } output[outp] = '\0'; return inp; } +/* Now just a wrapper around rrd_graph_v */ +int rrd_graph( + int argc, + char **argv, + char ***prdata, + int *xsize, + int *ysize, + FILE * stream, + double *ymin, + double *ymax) +{ + int prlines = 0; + rrd_info_t *grinfo = NULL; + rrd_info_t *walker; + + grinfo = rrd_graph_v(argc, argv); + if (grinfo == NULL) + return -1; + walker = grinfo; + (*prdata) = NULL; + while (walker) { + if (strcmp(walker->key, "image_info") == 0) { + prlines++; + if (((*prdata) = + (char**)rrd_realloc((*prdata), + (prlines + 1) * sizeof(char *))) == NULL) { + rrd_set_error("realloc prdata"); + return 0; + } + /* imginfo goes to position 0 in the prdata array */ + (*prdata)[prlines - 1] = (char*)malloc((strlen(walker->value.u_str) + + 2) * sizeof(char)); + strcpy((*prdata)[prlines - 1], walker->value.u_str); + (*prdata)[prlines] = NULL; + } + /* skip anything else */ + walker = walker->next; + } + walker = grinfo; + *xsize = 0; + *ysize = 0; + *ymin = 0; + *ymax = 0; + while (walker) { + if (strcmp(walker->key, "image_width") == 0) { + *xsize = walker->value.u_int; + } else if (strcmp(walker->key, "image_height") == 0) { + *ysize = walker->value.u_int; + } else if (strcmp(walker->key, "value_min") == 0) { + *ymin = walker->value.u_val; + } else if (strcmp(walker->key, "value_max") == 0) { + *ymax = walker->value.u_val; + } else if (strncmp(walker->key, "print", 5) == 0) { /* keys are prdate[0..] */ + prlines++; + if (((*prdata) = + (char**)rrd_realloc((*prdata), + (prlines + 1) * sizeof(char *))) == NULL) { + rrd_set_error("realloc prdata"); + return 0; + } + (*prdata)[prlines - 1] = (char*)malloc((strlen(walker->value.u_str) + + 2) * sizeof(char)); + (*prdata)[prlines] = NULL; + strcpy((*prdata)[prlines - 1], walker->value.u_str); + } else if (strcmp(walker->key, "image") == 0) { + fwrite(walker->value.u_blo.ptr, walker->value.u_blo.size, 1, + (stream ? stream : stdout)); + } + /* skip anything else */ + walker = walker->next; + } + rrd_info_free(grinfo); + return 0; +} + + /* Some surgery done on this function, it became ridiculously big. ** Things moved: ** - initializing now in rrd_graph_init() ** - options parsing now in rrd_graph_options() ** - script parsing now in rrd_graph_script() */ -int -rrd_graph(int argc, char **argv, char ***prdata, int *xsize, int *ysize) +rrd_info_t *rrd_graph_v( + int argc, + char **argv) { - image_desc_t im; - + image_desc_t im; + rrd_info_t *grinfo; rrd_graph_init(&im); - - rrd_graph_options(argc,argv,&im); - if (rrd_test_error()) return -1; + /* a dummy surface so that we can measure text sizes for placements */ - if (strlen(argv[optind])>=MAXPATH) { - rrd_set_error("filename (including path) too long"); - return -1; + rrd_graph_options(argc, argv, &im); + if (rrd_test_error()) { + rrd_info_free(im.grinfo); + im_free(&im); + return NULL; + } + + if (optind >= argc) { + rrd_info_free(im.grinfo); + im_free(&im); + rrd_set_error("missing filename"); + return NULL; + } + + if (strlen(argv[optind]) >= MAXPATH) { + rrd_set_error("filename (including path) too long"); + rrd_info_free(im.grinfo); + im_free(&im); + return NULL; + } + + strncpy(im.graphfile, argv[optind], MAXPATH - 1); + im.graphfile[MAXPATH - 1] = '\0'; + + if (strcmp(im.graphfile, "-") == 0) { + im.graphfile[0] = '\0'; } - strncpy(im.graphfile,argv[optind],MAXPATH-1); - im.graphfile[MAXPATH-1]='\0'; - rrd_graph_script(argc,argv,&im); - if (rrd_test_error()) return -1; + rrd_graph_script(argc, argv, &im, 1); + if (rrd_test_error()) { + rrd_info_free(im.grinfo); + im_free(&im); + return NULL; + } /* Everything is now read and the actual work can start */ - (*prdata)=NULL; - if (graph_paint(&im,prdata)==-1){ - im_free(&im); - return -1; + if (graph_paint(&im) == -1) { + rrd_info_free(im.grinfo); + im_free(&im); + return NULL; } + /* The image is generated and needs to be output. - ** Also, if needed, print a line with information about the image. - */ + ** Also, if needed, print a line with information about the image. + */ - *xsize=im.xgif; - *ysize=im.ygif; if (im.imginfo) { - char *filename; - if (!(*prdata)) { - /* maybe prdata is not allocated yet ... lets do it now */ - if ((*prdata = calloc(2,sizeof(char *)))==NULL) { - rrd_set_error("malloc imginfo"); - return -1; - }; - } - if(((*prdata)[0] = malloc((strlen(im.imginfo)+200+strlen(im.graphfile))*sizeof(char))) - ==NULL){ - rrd_set_error("malloc imginfo"); - return -1; - } - filename=im.graphfile+strlen(im.graphfile); - while(filename > im.graphfile) { - if (*(filename-1)=='/' || *(filename-1)=='\\' ) break; - filename--; - } - - sprintf((*prdata)[0],im.imginfo,filename,(long)(im.zoom*im.xgif),(long)(im.zoom*im.ygif)); + rrd_infoval_t info; + char *path; + char *filename; + + path = strdup(im.graphfile); + filename = basename(path); + info.u_str = + sprintf_alloc(im.imginfo, + filename, + (long) (im.zoom * + im.ximg), (long) (im.zoom * im.yimg)); + grinfo_push(&im, sprintf_alloc("image_info"), RD_I_STR, info); + free(info.u_str); + free(path); } + if (im.rendered_image) { + rrd_infoval_t img; + + img.u_blo.size = im.rendered_image_size; + img.u_blo.ptr = im.rendered_image; + grinfo_push(&im, sprintf_alloc("image"), RD_I_BLO, img); + } + grinfo = im.grinfo; im_free(&im); - return 0; + return grinfo; +} + +static void +rrd_set_font_desc ( + image_desc_t *im,int prop,char *font, double size ){ + if (font){ + strncpy(im->text_prop[prop].font, font, sizeof(text_prop[prop].font) - 1); + im->text_prop[prop].font[sizeof(text_prop[prop].font) - 1] = '\0'; + im->text_prop[prop].font_desc = pango_font_description_from_string( font ); + }; + if (size > 0){ + im->text_prop[prop].size = size; + }; + if (im->text_prop[prop].font_desc && im->text_prop[prop].size ){ + pango_font_description_set_size(im->text_prop[prop].font_desc, im->text_prop[prop].size * PANGO_SCALE); + }; } -void -rrd_graph_init(image_desc_t *im) +void rrd_graph_init( + image_desc_t + *im) { - int i; + unsigned int i; + char *deffont = getenv("RRD_DEFAULT_FONT"); + static PangoFontMap *fontmap = NULL; + PangoContext *context; - im->xlab_user.minsec = -1; - im->xgif=0; - im->ygif=0; - im->xsize = 400; - im->ysize = 100; - im->step = 0; - im->ylegend[0] = '\0'; - im->title[0] = '\0'; - im->minval = DNAN; - im->maxval = DNAN; - im->interlaced = 0; - im->unitsexponent= 9999; - im->extra_flags= 0; - im->rigid = 0; - im->imginfo = NULL; - im->lazy = 0; - im->logarithmic = 0; - im->ygridstep = DNAN; +#ifdef HAVE_TZSET + tzset(); +#endif +#ifdef HAVE_SETLOCALE + setlocale(LC_TIME, ""); +#ifdef HAVE_MBSTOWCS + setlocale(LC_CTYPE, ""); +#endif +#endif + im->base = 1000; + im->daemon_addr = NULL; im->draw_x_grid = 1; im->draw_y_grid = 1; - im->base = 1000; - im->prt_c = 0; + im->extra_flags = 0; + im->font_options = cairo_font_options_create(); + im->forceleftspace = 0; im->gdes_c = 0; im->gdes = NULL; - im->zoom = 1.0; - im->imgformat = IF_GIF; /* we default to GIF output */ + im->graph_antialias = CAIRO_ANTIALIAS_GRAY; + im->grid_dash_off = 1; + im->grid_dash_on = 1; + im->gridfit = 1; + im->grinfo = (rrd_info_t *) NULL; + im->grinfo_current = (rrd_info_t *) NULL; + im->imgformat = IF_PNG; + im->imginfo = NULL; + im->lazy = 0; + im->logarithmic = 0; + im->maxval = DNAN; + im->minval = 0; + im->minval = DNAN; + im->prt_c = 0; + im->rigid = 0; + im->rendered_image_size = 0; + im->rendered_image = NULL; + im->slopemode = 0; + im->step = 0; + im->symbol = ' '; + im->tabwidth = 40.0; + im->title[0] = '\0'; + im->unitsexponent = 9999; + im->unitslength = 6; + im->viewfactor = 1.0; + im->watermark[0] = '\0'; + im->with_markup = 0; + im->ximg = 0; + im->xlab_user.minsec = -1; + im->xorigin = 0; + im->xsize = 400; + im->ygridstep = DNAN; + im->yimg = 0; + im->ylegend[0] = '\0'; + im->second_axis_scale = 0; /* 0 disables it */ + im->second_axis_shift = 0; /* no shift by default */ + im->second_axis_legend[0] = '\0'; + im->second_axis_format[0] = '\0'; + im->yorigin = 0; + im->ysize = 100; + im->zoom = 1; - for(i=0;igraph_col[i]=graph_col[i]; + im->surface = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 10, 10); + im->cr = cairo_create(im->surface); - for(i=0;itext_prop[i].size = text_prop[i].size; - im->text_prop[i].font = text_prop[i].font; + for (i = 0; i < DIM(text_prop); i++) { + im->text_prop[i].size = -1; + rrd_set_font_desc(im,i, deffont ? deffont : text_prop[i].font,text_prop[i].size); } + + if (fontmap == NULL){ + fontmap = pango_cairo_font_map_get_default(); + } + + context = pango_cairo_font_map_create_context((PangoCairoFontMap*)fontmap); + + pango_cairo_context_set_resolution(context, 100); + + pango_cairo_update_context(im->cr,context); + + im->layout = pango_layout_new(context); + +// im->layout = pango_cairo_create_layout(im->cr); + + + cairo_font_options_set_hint_style + (im->font_options, CAIRO_HINT_STYLE_FULL); + cairo_font_options_set_hint_metrics + (im->font_options, CAIRO_HINT_METRICS_ON); + cairo_font_options_set_antialias(im->font_options, CAIRO_ANTIALIAS_GRAY); + + + + for (i = 0; i < DIM(graph_col); i++) + im->graph_col[i] = graph_col[i]; + + } -void -rrd_graph_options(int argc, char *argv[],image_desc_t *im) + +void rrd_graph_options( + int argc, + char *argv[], + image_desc_t + *im) { - int stroff; - char *parsetime_error = NULL; - char scan_gtm[12],scan_mtm[12],scan_ltm[12],col_nam[12]; - time_t start_tmp=0,end_tmp=0; - long long_tmp; - struct time_value start_tv, end_tv; - gfx_color_t color; - - parsetime("end-24h", &start_tv); - parsetime("now", &end_tv); - - while (1){ - static struct option long_options[] = - { - {"start", required_argument, 0, 's'}, - {"end", required_argument, 0, 'e'}, - {"x-grid", required_argument, 0, 'x'}, - {"y-grid", required_argument, 0, 'y'}, - {"vertical-label",required_argument,0,'v'}, - {"width", required_argument, 0, 'w'}, - {"height", required_argument, 0, 'h'}, - {"interlaced", no_argument, 0, 'i'}, - {"upper-limit",required_argument, 0, 'u'}, - {"lower-limit",required_argument, 0, 'l'}, - {"rigid", no_argument, 0, 'r'}, - {"base", required_argument, 0, 'b'}, - {"logarithmic",no_argument, 0, 'o'}, - {"color", required_argument, 0, 'c'}, - {"font", required_argument, 0, 'n'}, - {"title", required_argument, 0, 't'}, - {"imginfo", required_argument, 0, 'f'}, - {"imgformat", required_argument, 0, 'a'}, - {"lazy", no_argument, 0, 'z'}, - {"zoom", required_argument, 0, 'm'}, - {"no-legend", no_argument, 0, 'g'}, - {"alt-y-grid", no_argument, 0, 257 }, - {"alt-autoscale", no_argument, 0, 258 }, - {"alt-autoscale-max", no_argument, 0, 259 }, - {"units-exponent",required_argument, 0, 260}, - {"step", required_argument, 0, 261}, - {0,0,0,0}}; - int option_index = 0; - int opt; - - - opt = getopt_long(argc, argv, - "s:e:x:y:v:w:h:iu:l:rb:oc:n:m:t:f:a:z:g", - long_options, &option_index); - - if (opt == EOF) - break; - - switch(opt) { - case 257: - im->extra_flags |= ALTYGRID; - break; - case 258: - im->extra_flags |= ALTAUTOSCALE; - break; - case 259: - im->extra_flags |= ALTAUTOSCALE_MAX; - break; - case 'g': - im->extra_flags |= NOLEGEND; - break; - case 260: - im->unitsexponent = atoi(optarg); - break; - case 261: - im->step = atoi(optarg); - break; - case 's': - if ((parsetime_error = parsetime(optarg, &start_tv))) { - rrd_set_error( "start time: %s", parsetime_error ); - return; - } - break; - case 'e': - if ((parsetime_error = parsetime(optarg, &end_tv))) { - rrd_set_error( "end time: %s", parsetime_error ); - return; - } - break; - case 'x': - if(strcmp(optarg,"none") == 0){ - im->draw_x_grid=0; - break; - }; - - if(sscanf(optarg, - "%10[A-Z]:%ld:%10[A-Z]:%ld:%10[A-Z]:%ld:%ld:%n", - scan_gtm, - &im->xlab_user.gridst, - scan_mtm, - &im->xlab_user.mgridst, - scan_ltm, - &im->xlab_user.labst, - &im->xlab_user.precis, - &stroff) == 7 && stroff != 0){ - strncpy(im->xlab_form, optarg+stroff, sizeof(im->xlab_form) - 1); - if((im->xlab_user.gridtm = tmt_conv(scan_gtm)) == -1){ - rrd_set_error("unknown keyword %s",scan_gtm); - return; - } else if ((im->xlab_user.mgridtm = tmt_conv(scan_mtm)) == -1){ - rrd_set_error("unknown keyword %s",scan_mtm); - return; - } else if ((im->xlab_user.labtm = tmt_conv(scan_ltm)) == -1){ - rrd_set_error("unknown keyword %s",scan_ltm); - return; - } - im->xlab_user.minsec = 1; - im->xlab_user.stst = im->xlab_form; - } else { - rrd_set_error("invalid x-grid format"); - return; - } - break; - case 'y': - - if(strcmp(optarg,"none") == 0){ - im->draw_y_grid=0; - break; - }; - - if(sscanf(optarg, - "%lf:%d", - &im->ygridstep, - &im->ylabfact) == 2) { - if(im->ygridstep<=0){ - rrd_set_error("grid step must be > 0"); - return; - } else if (im->ylabfact < 1){ - rrd_set_error("label factor must be > 0"); - return; - } - } else { - rrd_set_error("invalid y-grid format"); - return; - } - break; - case 'v': - strncpy(im->ylegend,optarg,150); - im->ylegend[150]='\0'; - break; - case 'u': - im->maxval = atof(optarg); - break; - case 'l': - im->minval = atof(optarg); - break; - case 'b': - im->base = atol(optarg); - if(im->base != 1024 && im->base != 1000 ){ - rrd_set_error("the only sensible value for base apart from 1000 is 1024"); - return; - } - break; - case 'w': - long_tmp = atol(optarg); - if (long_tmp < 10) { - rrd_set_error("width below 10 pixels"); - return; - } - im->xsize = long_tmp; - break; - case 'h': - long_tmp = atol(optarg); - if (long_tmp < 10) { - rrd_set_error("height below 10 pixels"); - return; - } - im->ysize = long_tmp; - break; - case 'i': - im->interlaced = 1; - break; - case 'r': - im->rigid = 1; - break; - case 'f': - im->imginfo = optarg; - break; - case 'a': - if((im->imgformat = if_conv(optarg)) == -1) { - rrd_set_error("unsupported graphics format '%s'",optarg); - return; - } - break; - case 'z': - im->lazy = 1; - break; - case 'o': - im->logarithmic = 1; - if (isnan(im->minval)) - im->minval=1; - break; - case 'c': + int stroff; + char *parsetime_error = NULL; + char scan_gtm[12], scan_mtm[12], scan_ltm[12], col_nam[12]; + time_t start_tmp = 0, end_tmp = 0; + long long_tmp; + rrd_time_value_t start_tv, end_tv; + long unsigned int color; + char *old_locale = ""; + + /* defines for long options without a short equivalent. should be bytes, + and may not collide with (the ASCII value of) short options */ +#define LONGOPT_UNITS_SI 255 + +/* *INDENT-OFF* */ + struct option long_options[] = { + { "start", required_argument, 0, 's'}, + { "end", required_argument, 0, 'e'}, + { "x-grid", required_argument, 0, 'x'}, + { "y-grid", required_argument, 0, 'y'}, + { "vertical-label", required_argument, 0, 'v'}, + { "width", required_argument, 0, 'w'}, + { "height", required_argument, 0, 'h'}, + { "full-size-mode", no_argument, 0, 'D'}, + { "interlaced", no_argument, 0, 'i'}, + { "upper-limit", required_argument, 0, 'u'}, + { "lower-limit", required_argument, 0, 'l'}, + { "rigid", no_argument, 0, 'r'}, + { "base", required_argument, 0, 'b'}, + { "logarithmic", no_argument, 0, 'o'}, + { "color", required_argument, 0, 'c'}, + { "font", required_argument, 0, 'n'}, + { "title", required_argument, 0, 't'}, + { "imginfo", required_argument, 0, 'f'}, + { "imgformat", required_argument, 0, 'a'}, + { "lazy", no_argument, 0, 'z'}, + { "zoom", required_argument, 0, 'm'}, + { "no-legend", no_argument, 0, 'g'}, + { "force-rules-legend", no_argument, 0, 'F'}, + { "only-graph", no_argument, 0, 'j'}, + { "alt-y-grid", no_argument, 0, 'Y'}, + {"disable-rrdtool-tag", no_argument, 0, 1001}, + {"right-axis", required_argument, 0, 1002}, + {"right-axis-label", required_argument, 0, 1003}, + {"right-axis-format", required_argument, 0, 1004}, + { "no-minor", no_argument, 0, 'I'}, + { "slope-mode", no_argument, 0, 'E'}, + { "alt-autoscale", no_argument, 0, 'A'}, + { "alt-autoscale-min", no_argument, 0, 'J'}, + { "alt-autoscale-max", no_argument, 0, 'M'}, + { "no-gridfit", no_argument, 0, 'N'}, + { "units-exponent", required_argument, 0, 'X'}, + { "units-length", required_argument, 0, 'L'}, + { "units", required_argument, 0, LONGOPT_UNITS_SI}, + { "step", required_argument, 0, 'S'}, + { "tabwidth", required_argument, 0, 'T'}, + { "font-render-mode", required_argument, 0, 'R'}, + { "graph-render-mode", required_argument, 0, 'G'}, + { "font-smoothing-threshold", required_argument, 0, 'B'}, + { "watermark", required_argument, 0, 'W'}, + { "alt-y-mrtg", no_argument, 0, 1000}, /* this has no effect it is just here to save old apps from crashing when they use it */ + { "pango-markup", no_argument, 0, 'P'}, + { "daemon", required_argument, 0, 'd'}, + { 0, 0, 0, 0} +}; +/* *INDENT-ON* */ + + optind = 0; + opterr = 0; /* initialize getopt */ + rrd_parsetime("end-24h", &start_tv); + rrd_parsetime("now", &end_tv); + while (1) { + int option_index = 0; + int opt; + int col_start, col_end; + + opt = getopt_long(argc, argv, + "s:e:x:y:v:w:h:D:iu:l:rb:oc:n:m:t:f:a:I:zgjFYAMEX:L:S:T:NR:B:W:kPd:", + long_options, &option_index); + if (opt == EOF) + break; + switch (opt) { + case 'I': + im->extra_flags |= NOMINOR; + break; + case 'Y': + im->extra_flags |= ALTYGRID; + break; + case 'A': + im->extra_flags |= ALTAUTOSCALE; + break; + case 'J': + im->extra_flags |= ALTAUTOSCALE_MIN; + break; + case 'M': + im->extra_flags |= ALTAUTOSCALE_MAX; + break; + case 'j': + im->extra_flags |= ONLY_GRAPH; + break; + case 'g': + im->extra_flags |= NOLEGEND; + break; + case 'F': + im->extra_flags |= FORCE_RULES_LEGEND; + break; + case 1001: + im->extra_flags |= NO_RRDTOOL_TAG; + break; + case LONGOPT_UNITS_SI: + if (im->extra_flags & FORCE_UNITS) { + rrd_set_error("--units can only be used once!"); + setlocale(LC_NUMERIC, old_locale); + return; + } + if (strcmp(optarg, "si") == 0) + im->extra_flags |= FORCE_UNITS_SI; + else { + rrd_set_error("invalid argument for --units: %s", optarg); + return; + } + break; + case 'X': + im->unitsexponent = atoi(optarg); + break; + case 'L': + im->unitslength = atoi(optarg); + im->forceleftspace = 1; + break; + case 'T': + old_locale = setlocale(LC_NUMERIC, "C"); + im->tabwidth = atof(optarg); + setlocale(LC_NUMERIC, old_locale); + break; + case 'S': + old_locale = setlocale(LC_NUMERIC, "C"); + im->step = atoi(optarg); + setlocale(LC_NUMERIC, old_locale); + break; + case 'N': + im->gridfit = 0; + break; + case 'P': + im->with_markup = 1; + break; + case 's': + if ((parsetime_error = rrd_parsetime(optarg, &start_tv))) { + rrd_set_error("start time: %s", parsetime_error); + return; + } + break; + case 'e': + if ((parsetime_error = rrd_parsetime(optarg, &end_tv))) { + rrd_set_error("end time: %s", parsetime_error); + return; + } + break; + case 'x': + if (strcmp(optarg, "none") == 0) { + im->draw_x_grid = 0; + break; + }; + if (sscanf(optarg, + "%10[A-Z]:%ld:%10[A-Z]:%ld:%10[A-Z]:%ld:%ld:%n", + scan_gtm, + &im->xlab_user.gridst, + scan_mtm, + &im->xlab_user.mgridst, + scan_ltm, + &im->xlab_user.labst, + &im->xlab_user.precis, &stroff) == 7 && stroff != 0) { + strncpy(im->xlab_form, optarg + stroff, + sizeof(im->xlab_form) - 1); + im->xlab_form[sizeof(im->xlab_form) - 1] = '\0'; + if ((int) + (im->xlab_user.gridtm = tmt_conv(scan_gtm)) == -1) { + rrd_set_error("unknown keyword %s", scan_gtm); + return; + } else if ((int) + (im->xlab_user.mgridtm = tmt_conv(scan_mtm)) + == -1) { + rrd_set_error("unknown keyword %s", scan_mtm); + return; + } else if ((int) + (im->xlab_user.labtm = tmt_conv(scan_ltm)) == -1) { + rrd_set_error("unknown keyword %s", scan_ltm); + return; + } + im->xlab_user.minsec = 1; + im->xlab_user.stst = im->xlab_form; + } else { + rrd_set_error("invalid x-grid format"); + return; + } + break; + case 'y': + + if (strcmp(optarg, "none") == 0) { + im->draw_y_grid = 0; + break; + }; + old_locale = setlocale(LC_NUMERIC, "C"); + if (sscanf(optarg, "%lf:%d", &im->ygridstep, &im->ylabfact) == 2) { + setlocale(LC_NUMERIC, old_locale); + if (im->ygridstep <= 0) { + rrd_set_error("grid step must be > 0"); + return; + } else if (im->ylabfact < 1) { + rrd_set_error("label factor must be > 0"); + return; + } + } else { + setlocale(LC_NUMERIC, old_locale); + rrd_set_error("invalid y-grid format"); + return; + } + break; + case 1002: /* right y axis */ + if(sscanf(optarg, - "%10[A-Z]#%8x", - col_nam,&color) == 2){ - int ci; - if((ci=grc_conv(col_nam)) != -1){ - im->graph_col[ci]=color; - } else { - rrd_set_error("invalid color name '%s'",col_nam); + "%lf:%lf", + &im->second_axis_scale, + &im->second_axis_shift) == 2) { + if(im->second_axis_scale==0){ + rrd_set_error("the second_axis_scale must not be 0"); + return; + } + } else { + rrd_set_error("invalid right-axis format expected scale:shift"); + return; + } + break; + case 1003: + strncpy(im->second_axis_legend,optarg,150); + im->second_axis_legend[150]='\0'; + break; + case 1004: + if (bad_format(optarg)){ + rrd_set_error("use either %le or %lf formats"); + return; + } + strncpy(im->second_axis_format,optarg,150); + im->second_axis_format[150]='\0'; + break; + case 'v': + strncpy(im->ylegend, optarg, 150); + im->ylegend[150] = '\0'; + break; + case 'u': + old_locale = setlocale(LC_NUMERIC, "C"); + im->maxval = atof(optarg); + setlocale(LC_NUMERIC, old_locale); + break; + case 'l': + old_locale = setlocale(LC_NUMERIC, "C"); + im->minval = atof(optarg); + setlocale(LC_NUMERIC, old_locale); + break; + case 'b': + im->base = atol(optarg); + if (im->base != 1024 && im->base != 1000) { + rrd_set_error + ("the only sensible value for base apart from 1000 is 1024"); + return; + } + break; + case 'w': + long_tmp = atol(optarg); + if (long_tmp < 10) { + rrd_set_error("width below 10 pixels"); + return; + } + im->xsize = long_tmp; + break; + case 'h': + long_tmp = atol(optarg); + if (long_tmp < 10) { + rrd_set_error("height below 10 pixels"); + return; + } + im->ysize = long_tmp; + break; + case 'D': + im->extra_flags |= FULL_SIZE_MODE; + break; + case 'i': + /* interlaced png not supported at the moment */ + break; + case 'r': + im->rigid = 1; + break; + case 'f': + im->imginfo = optarg; + break; + case 'a': + if ((int) + (im->imgformat = if_conv(optarg)) == -1) { + rrd_set_error("unsupported graphics format '%s'", optarg); + return; + } + break; + case 'z': + im->lazy = 1; + break; + case 'E': + im->slopemode = 1; + break; + case 'o': + im->logarithmic = 1; + break; + case 'c': + if (sscanf(optarg, + "%10[A-Z]#%n%8lx%n", + col_nam, &col_start, &color, &col_end) == 2) { + int ci; + int col_len = col_end - col_start; + + switch (col_len) { + case 3: + color = + (((color & 0xF00) * 0x110000) | ((color & 0x0F0) * + 0x011000) | + ((color & 0x00F) + * 0x001100) + | 0x000000FF); + break; + case 4: + color = + (((color & 0xF000) * + 0x11000) | ((color & 0x0F00) * + 0x01100) | ((color & + 0x00F0) * + 0x00110) | + ((color & 0x000F) * 0x00011) + ); + break; + case 6: + color = (color << 8) + 0xff /* shift left by 8 */ ; + break; + case 8: + break; + default: + rrd_set_error("the color format is #RRGGBB[AA]"); + return; + } + if ((ci = grc_conv(col_nam)) != -1) { + im->graph_col[ci] = gfx_hex_to_col(color); + } else { + rrd_set_error("invalid color name '%s'", col_nam); + return; } } else { rrd_set_error("invalid color def format"); - return -1; + return; } - break; + break; case 'n':{ - char *prop = ""; - double size = 1; - char *font = "dummy"; - - if(sscanf(optarg, - "%10[A-Z]:%lf:%s", - prop,&size,font) == 3){ - int sindex; - if((sindex=text_prop_conv(prop)) != -1){ - im->text_prop[sindex].size=size; - im->text_prop[sindex].font=font; - - } else { - rrd_set_error("invalid color name '%s'",col_nam); - } - } else { - rrd_set_error("invalid text property format"); - return; - } - break; + char prop[15]; + double size = 1; + int end; + + old_locale = setlocale(LC_NUMERIC, "C"); + if (sscanf(optarg, "%10[A-Z]:%lf%n", prop, &size, &end) >= 2) { + int sindex, propidx; + + setlocale(LC_NUMERIC, old_locale); + if ((sindex = text_prop_conv(prop)) != -1) { + for (propidx = sindex; + propidx < TEXT_PROP_LAST; propidx++) { + if (size > 0) { + rrd_set_font_desc(im,propidx,NULL,size); + } + if ((int) strlen(optarg) > end+2) { + if (optarg[end] == ':') { + rrd_set_font_desc(im,propidx,optarg + end + 1,0); + } else { + rrd_set_error + ("expected : after font size in '%s'", + optarg); + return; + } + } + /* only run the for loop for DEFAULT (0) for + all others, we break here. woodo programming */ + if (propidx == sindex && sindex != 0) + break; + } + } else { + rrd_set_error("invalid fonttag '%s'", prop); + return; + } + } else { + setlocale(LC_NUMERIC, old_locale); + rrd_set_error("invalid text property format"); + return; + } + break; } case 'm': - im->zoom= atof(optarg); - if (im->zoom <= 0.0) { - rrd_set_error("zoom factor must be > 0"); - return; - } - break; - case 't': - strncpy(im->title,optarg,150); - im->title[150]='\0'; - break; - - case '?': + old_locale = setlocale(LC_NUMERIC, "C"); + im->zoom = atof(optarg); + setlocale(LC_NUMERIC, old_locale); + if (im->zoom <= 0.0) { + rrd_set_error("zoom factor must be > 0"); + return; + } + break; + case 't': + strncpy(im->title, optarg, 150); + im->title[150] = '\0'; + break; + case 'R': + if (strcmp(optarg, "normal") == 0) { + cairo_font_options_set_antialias + (im->font_options, CAIRO_ANTIALIAS_GRAY); + cairo_font_options_set_hint_style + (im->font_options, CAIRO_HINT_STYLE_FULL); + } else if (strcmp(optarg, "light") == 0) { + cairo_font_options_set_antialias + (im->font_options, CAIRO_ANTIALIAS_GRAY); + cairo_font_options_set_hint_style + (im->font_options, CAIRO_HINT_STYLE_SLIGHT); + } else if (strcmp(optarg, "mono") == 0) { + cairo_font_options_set_antialias + (im->font_options, CAIRO_ANTIALIAS_NONE); + cairo_font_options_set_hint_style + (im->font_options, CAIRO_HINT_STYLE_FULL); + } else { + rrd_set_error("unknown font-render-mode '%s'", optarg); + return; + } + break; + case 'G': + if (strcmp(optarg, "normal") == 0) + im->graph_antialias = CAIRO_ANTIALIAS_GRAY; + else if (strcmp(optarg, "mono") == 0) + im->graph_antialias = CAIRO_ANTIALIAS_NONE; + else { + rrd_set_error("unknown graph-render-mode '%s'", optarg); + return; + } + break; + case 'B': + /* not supported curently */ + break; + case 'W': + strncpy(im->watermark, optarg, 100); + im->watermark[99] = '\0'; + break; + case 'd': + { + if (im->daemon_addr != NULL) + { + rrd_set_error ("You cannot specify --daemon " + "more than once."); + return; + } + + im->daemon_addr = strdup(optarg); + if (im->daemon_addr == NULL) + { + rrd_set_error("strdup failed"); + return; + } + + break; + } + case '?': if (optopt != 0) rrd_set_error("unknown option '%c'", optopt); else - rrd_set_error("unknown option '%s'",argv[optind-1]); + rrd_set_error("unknown option '%s'", argv[optind - 1]); return; - } + } + } /* while (1) */ + + { /* try to connect to rrdcached */ + int status = rrdc_connect(im->daemon_addr); + if (status != 0) return; } - if (optind >= argc) { - rrd_set_error("missing filename"); - return; + pango_cairo_context_set_font_options(pango_layout_get_context(im->layout), im->font_options); + pango_layout_context_changed(im->layout); + + + + if (im->logarithmic && im->minval <= 0) { + rrd_set_error + ("for a logarithmic yaxis you must specify a lower-limit > 0"); + return; } - if (im->logarithmic == 1 && (im->minval <= 0 || isnan(im->minval))){ - rrd_set_error("for a logarithmic yaxis you must specify a lower-limit > 0"); - return; + if (rrd_proc_start_end(&start_tv, &end_tv, &start_tmp, &end_tmp) == -1) { + /* error string is set in rrd_parsetime.c */ + return; } - if (proc_start_end(&start_tv,&end_tv,&start_tmp,&end_tmp) == -1){ - /* error string is set in parsetime.c */ - return; - } - - if (start_tmp < 3600*24*365*10){ - rrd_set_error("the first entry to fetch should be after 1980 (%ld)",start_tmp); - return; + if (start_tmp < 3600 * 24 * 365 * 10) { + rrd_set_error + ("the first entry to fetch should be after 1980 (%ld)", + start_tmp); + return; } - + if (end_tmp < start_tmp) { - rrd_set_error("start (%ld) should be less than end (%ld)", - start_tmp, end_tmp); - return; + rrd_set_error + ("start (%ld) should be less than end (%ld)", start_tmp, end_tmp); + return; } - + im->start = start_tmp; im->end = end_tmp; + im->step = max((long) im->step, (im->end - im->start) / im->xsize); } -void -rrd_graph_script(int argc, char *argv[], image_desc_t *im) +int rrd_graph_color( + image_desc_t + *im, + char *var, + char *err, + int optional) { - int i; - char symname[100]; - int linepass = 0; /* stack must follow LINE*, AREA or STACK */ - - for (i=optind+1;igdes[im->gdes_c-1]" we use "gdp". - */ - gdes_alloc(im); - gdp=&im->gdes[im->gdes_c-1]; - line=argv[i]; - - /* function:newvname=string[:ds-name:CF] for xDEF - ** function:vname[#color[:string]] for LINEx,AREA,STACK - ** function:vname#color[:num[:string]] for TICK - ** function:vname-or-num#color[:string] for xRULE - ** function:vname:CF:string for xPRINT - ** function:string for COMMENT - */ - argstart=0; - - sscanf(line, "%10[A-Z0-9]:%n", funcname,&argstart); - if (argstart==0) { - rrd_set_error("Cannot parse function in line: %s",line); - im_free(im); - return; - } - if(sscanf(funcname,"LINE%lf",&linewidth)){ - im->gdes[im->gdes_c-1].gf = GF_LINE; - im->gdes[im->gdes_c-1].linewidth = linewidth; - } else { - if ((gdp->gf=gf_conv(funcname))==-1) { - rrd_set_error("'%s' is not a valid function name",funcname); - im_free(im); - return; - } - } - - /* If the error string is set, we exit at the end of the switch */ - switch (gdp->gf) { - case GF_COMMENT: - if (rrd_graph_legend(gdp,&line[argstart])==0) - rrd_set_error("Cannot parse comment in line: %s",line); - break; - case GF_VRULE: - case GF_HRULE: - j=k=l=m=0; - sscanf(&line[argstart], "%lf%n#%n", &d, &j, &k); - sscanf(&line[argstart], DEF_NAM_FMT "%n#%n", vname, &l, &m); - if (k+m==0) { - rrd_set_error("Cannot parse name or num in line: %s",line); - break; - } - if (j!=0) { - gdp->xrule=d; - gdp->yrule=d; - argstart+=j; - } else if (!rrd_graph_check_vname(im,vname,line)) { - gdp->xrule=0; - gdp->yrule=DNAN; - argstart+=l; - } else break; /* exit due to wrong vname */ - if ((j=rrd_graph_color(im,&line[argstart],line,0))==0) break; - argstart+=j; - if (strlen(&line[argstart])!=0) { - if (rrd_graph_legend(gdp,&line[++argstart])==0) - rrd_set_error("Cannot parse comment in line: %s",line); - } - break; - case GF_STACK: - if (linepass==0) { - rrd_set_error("STACK must follow another graphing element"); - break; - } - case GF_LINE: - case GF_AREA: - case GF_TICK: - j=k=0; - linepass=1; - sscanf(&line[argstart],DEF_NAM_FMT"%n%1[#:]%n",vname,&j,sep,&k); - if (j+1!=k) - rrd_set_error("Cannot parse vname in line: %s",line); - else if (rrd_graph_check_vname(im,vname,line)) - rrd_set_error("Undefined vname '%s' in line: %s",line); - else - k=rrd_graph_color(im,&line[argstart],line,1); - if (rrd_test_error()) break; - argstart=argstart+j+k; - if ((strlen(&line[argstart])!=0)&&(gdp->gf==GF_TICK)) { - j=0; - sscanf(&line[argstart], ":%lf%n", &gdp->yrule,&j); - argstart+=j; - } - if (strlen(&line[argstart])!=0) - if (rrd_graph_legend(gdp,&line[++argstart])==0) - rrd_set_error("Cannot parse legend in line: %s",line); - break; - case GF_PRINT: - im->prt_c++; - case GF_GPRINT: - j=0; - sscanf(&line[argstart], DEF_NAM_FMT ":%n",gdp->vname,&j); - if (j==0) { - rrd_set_error("Cannot parse vname in line: '%s'",line); - break; - } - argstart+=j; - if (rrd_graph_check_vname(im,gdp->vname,line)) return; - j=0; - sscanf(&line[argstart], CF_NAM_FMT ":%n",symname,&j); - - k=(j!=0)?rrd_graph_check_CF(im,symname,line):1; -#define VIDX im->gdes[gdp->vidx] - switch (k) { - case -1: /* looks CF but is not really CF */ - if (VIDX.gf == GF_VDEF) rrd_clear_error(); - break; - case 0: /* CF present and correct */ - if (VIDX.gf == GF_VDEF) - rrd_set_error("Don't use CF when printing VDEF"); - argstart+=j; - break; - case 1: /* CF not present */ - if (VIDX.gf == GF_VDEF) rrd_clear_error(); - else rrd_set_error("Printing DEF or CDEF needs CF"); - break; - default: - rrd_set_error("Oops, bug in GPRINT scanning"); - } -#undef VIDX - if (rrd_test_error()) break; - - if (strlen(&line[argstart])!=0) { - if (rrd_graph_legend(gdp,&line[argstart])==0) - rrd_set_error("Cannot parse legend in line: %s",line); - } else rrd_set_error("No legend in (G)PRINT line: %s",line); - strcpy(gdp->format, gdp->legend); - break; - case GF_DEF: - case GF_VDEF: - case GF_CDEF: - j=0; - sscanf(&line[argstart], DEF_NAM_FMT "=%n",gdp->vname,&j); - if (j==0) { - rrd_set_error("Could not parse line: %s",line); - break; - } - if (find_var(im,gdp->vname)!=-1) { - rrd_set_error("Variable '%s' in line '%s' already in use\n", - gdp->vname,line); - break; - } - argstart+=j; - switch (gdp->gf) { - case GF_DEF: - argstart+=scan_for_col(&line[argstart],MAXPATH,gdp->rrd); - j=k=0; - sscanf(&line[argstart], - ":" DS_NAM_FMT ":" CF_NAM_FMT "%n%*s%n", - gdp->ds_nam, symname, &j, &k); - if ((j==0)||(k!=0)) { - rrd_set_error("Cannot parse DS or CF in '%s'",line); - break; - } - rrd_graph_check_CF(im,symname,line); - break; - case GF_VDEF: - j=0; - sscanf(&line[argstart],DEF_NAM_FMT ",%n",vname,&j); - if (j==0) { - rrd_set_error("Cannot parse vname in line '%s'",line); - break; - } - argstart+=j; - if (rrd_graph_check_vname(im,vname,line)) return; - if ( im->gdes[gdp->vidx].gf != GF_DEF - && im->gdes[gdp->vidx].gf != GF_CDEF) { - rrd_set_error("variable '%s' not DEF nor " - "CDEF in VDEF '%s'", vname,gdp->vname); - break; - } - vdef_parse(gdp,&line[argstart+strstart]); - break; - case GF_CDEF: - if (strstr(&line[argstart],":")!=NULL) { - rrd_set_error("Error in RPN, line: %s",line); - break; - } - if ((gdp->rpnp = rpn_parse( - (void *)im, - &line[argstart], - &find_var_wrapper) - )==NULL) - rrd_set_error("invalid rpn expression in: %s",line); - break; - default: break; - } - break; - default: rrd_set_error("Big oops"); - } - if (rrd_test_error()) { - im_free(im); - return; - } - } - - if (im->gdes_c==0){ - rrd_set_error("can't make a graph without contents"); - im_free(im); /* ??? is this set ??? */ - return; - } -} -int -rrd_graph_check_vname(image_desc_t *im, char *varname, char *err) -{ - if ((im->gdes[im->gdes_c-1].vidx=find_var(im,varname))==-1) { - rrd_set_error("Unknown variable '%s' in %s",varname,err); - return -1; - } - return 0; -} -int -rrd_graph_color(image_desc_t *im, char *var, char *err, int optional) -{ - char *color; - graph_desc_t *gdp=&im->gdes[im->gdes_c-1]; - - color=strstr(var,"#"); - if (color==NULL) { - if (optional==0) { - rrd_set_error("Found no color in %s",err); - return 0; - } - return 0; + char *color; + graph_desc_t *gdp = &im->gdes[im->gdes_c - 1]; + + color = strstr(var, "#"); + if (color == NULL) { + if (optional == 0) { + rrd_set_error("Found no color in %s", err); + return 0; + } + return 0; } else { - int n=0; - char *rest; - gfx_color_t col; - - rest=strstr(color,":"); - if (rest!=NULL) - n=rest-color; - else - n=strlen(color); - - switch (n) { - case 7: - sscanf(color,"#%6x%n",&col,&n); - col = (col << 8) + 0xff /* shift left by 8 */; - if (n!=7) rrd_set_error("Color problem in %s",err); - break; - case 9: - sscanf(color,"#%8x%n",&col,&n); - if (n==9) break; - default: - rrd_set_error("Color problem in %s",err); - } - if (rrd_test_error()) return 0; - gdp->col = col; - return n; - } -} -int -rrd_graph_check_CF(image_desc_t *im, char *symname, char *err) -{ - if ((im->gdes[im->gdes_c-1].cf=cf_conv(symname))==-1) { - rrd_set_error("Unknown CF '%s' in %s",symname,err); - return -1; + int n = 0; + char *rest; + long unsigned int col; + + rest = strstr(color, ":"); + if (rest != NULL) + n = rest - color; + else + n = strlen(color); + switch (n) { + case 7: + sscanf(color, "#%6lx%n", &col, &n); + col = (col << 8) + 0xff /* shift left by 8 */ ; + if (n != 7) + rrd_set_error("Color problem in %s", err); + break; + case 9: + sscanf(color, "#%8lx%n", &col, &n); + if (n == 9) + break; + default: + rrd_set_error("Color problem in %s", err); + } + if (rrd_test_error()) + return 0; + gdp->col = gfx_hex_to_col(col); + return n; } - return 0; } -int -rrd_graph_legend(graph_desc_t *gdp, char *line) + + +int bad_format( + char *fmt) { - int i; + char *ptr; + int n = 0; + + ptr = fmt; + while (*ptr != '\0') + if (*ptr++ == '%') { + + /* line cannot end with percent char */ + if (*ptr == '\0') + return 1; + /* '%s', '%S' and '%%' are allowed */ + if (*ptr == 's' || *ptr == 'S' || *ptr == '%') + ptr++; + /* %c is allowed (but use only with vdef!) */ + else if (*ptr == 'c') { + ptr++; + n = 1; + } - i=scan_for_col(line,FMT_LEG_LEN,gdp->legend); + /* or else '% 6.2lf' and such are allowed */ + else { + /* optional padding character */ + if (*ptr == ' ' || *ptr == '+' || *ptr == '-') + ptr++; + /* This should take care of 'm.n' with all three optional */ + while (*ptr >= '0' && *ptr <= '9') + ptr++; + if (*ptr == '.') + ptr++; + while (*ptr >= '0' && *ptr <= '9') + ptr++; + /* Either 'le', 'lf' or 'lg' must follow here */ + if (*ptr++ != 'l') + return 1; + if (*ptr == 'e' || *ptr == 'f' || *ptr == 'g') + ptr++; + else + return 1; + n++; + } + } - return (strlen(&line[i])==0); + return (n != 1); } -int bad_format(char *fmt) { - char *ptr; - int n=0; - - ptr = fmt; - while (*ptr != '\0') { - if (*ptr == '%') {ptr++; - if (*ptr == '\0') return 1; - while ((*ptr >= '0' && *ptr <= '9') || *ptr == '.') { - ptr++; - } - if (*ptr == '\0') return 1; - if (*ptr == 'l') { - ptr++; - n++; - if (*ptr == '\0') return 1; - if (*ptr == 'e' || *ptr == 'f') { - ptr++; - } else { return 1; } - } - else if (*ptr == 's' || *ptr == 'S' || *ptr == '%') { ++ptr; } - else { return 1; } - } else { - ++ptr; - } - } - return (n!=1); -} -int -vdef_parse(gdes,str) -struct graph_desc_t *gdes; -char *str; +int vdef_parse( + struct graph_desc_t + *gdes, + const char *const str) { /* A VDEF currently is either "func" or "param,func" * so the parsing is rather simple. Change if needed. */ - double param; - char func[30]; - int n; - - n=0; - sscanf(str,"%le,%29[A-Z]%n",¶m,func,&n); - if (n==strlen(str)) { /* matched */ - ; + double param; + char func[30]; + int n; + char *old_locale; + + n = 0; + old_locale = setlocale(LC_NUMERIC, "C"); + sscanf(str, "%le,%29[A-Z]%n", ¶m, func, &n); + setlocale(LC_NUMERIC, old_locale); + if (n == (int) strlen(str)) { /* matched */ + ; } else { - n=0; - sscanf(str,"%29[A-Z]%n",func,&n); - if (n==strlen(str)) { /* matched */ - param=DNAN; - } else { - rrd_set_error("Unknown function string '%s' in VDEF '%s'" - ,str - ,gdes->vname - ); - return -1; - } - } - if (!strcmp("PERCENT",func)) gdes->vf.op = VDEF_PERCENT; - else if (!strcmp("MAXIMUM",func)) gdes->vf.op = VDEF_MAXIMUM; - else if (!strcmp("AVERAGE",func)) gdes->vf.op = VDEF_AVERAGE; - else if (!strcmp("MINIMUM",func)) gdes->vf.op = VDEF_MINIMUM; - else if (!strcmp("TOTAL", func)) gdes->vf.op = VDEF_TOTAL; - else if (!strcmp("FIRST", func)) gdes->vf.op = VDEF_FIRST; - else if (!strcmp("LAST", func)) gdes->vf.op = VDEF_LAST; + n = 0; + sscanf(str, "%29[A-Z]%n", func, &n); + if (n == (int) strlen(str)) { /* matched */ + param = DNAN; + } else { + rrd_set_error + ("Unknown function string '%s' in VDEF '%s'", + str, gdes->vname); + return -1; + } + } + if (!strcmp("PERCENT", func)) + gdes->vf.op = VDEF_PERCENT; + else if (!strcmp("PERCENTNAN", func)) + gdes->vf.op = VDEF_PERCENTNAN; + else if (!strcmp("MAXIMUM", func)) + gdes->vf.op = VDEF_MAXIMUM; + else if (!strcmp("AVERAGE", func)) + gdes->vf.op = VDEF_AVERAGE; + else if (!strcmp("STDEV", func)) + gdes->vf.op = VDEF_STDEV; + else if (!strcmp("MINIMUM", func)) + gdes->vf.op = VDEF_MINIMUM; + else if (!strcmp("TOTAL", func)) + gdes->vf.op = VDEF_TOTAL; + else if (!strcmp("FIRST", func)) + gdes->vf.op = VDEF_FIRST; + else if (!strcmp("LAST", func)) + gdes->vf.op = VDEF_LAST; + else if (!strcmp("LSLSLOPE", func)) + gdes->vf.op = VDEF_LSLSLOPE; + else if (!strcmp("LSLINT", func)) + gdes->vf.op = VDEF_LSLINT; + else if (!strcmp("LSLCORREL", func)) + gdes->vf.op = VDEF_LSLCORREL; else { - rrd_set_error("Unknown function '%s' in VDEF '%s'\n" - ,func - ,gdes->vname - ); - return -1; + rrd_set_error + ("Unknown function '%s' in VDEF '%s'\n", func, gdes->vname); + return -1; }; - switch (gdes->vf.op) { - case VDEF_PERCENT: - if (isnan(param)) { /* no parameter given */ - rrd_set_error("Function '%s' needs parameter in VDEF '%s'\n" - ,func - ,gdes->vname - ); - return -1; - }; - if (param>=0.0 && param<=100.0) { - gdes->vf.param = param; - gdes->vf.val = DNAN; /* undefined */ - gdes->vf.when = 0; /* undefined */ - } else { - rrd_set_error("Parameter '%f' out of range in VDEF '%s'\n" - ,param - ,gdes->vname - ); - return -1; - }; - break; - case VDEF_MAXIMUM: - case VDEF_AVERAGE: - case VDEF_MINIMUM: - case VDEF_TOTAL: - case VDEF_FIRST: - case VDEF_LAST: - if (isnan(param)) { - gdes->vf.param = DNAN; - gdes->vf.val = DNAN; - gdes->vf.when = 0; - } else { - rrd_set_error("Function '%s' needs no parameter in VDEF '%s'\n" - ,func - ,gdes->vname - ); - return -1; - }; - break; + case VDEF_PERCENT: + case VDEF_PERCENTNAN: + if (isnan(param)) { /* no parameter given */ + rrd_set_error + ("Function '%s' needs parameter in VDEF '%s'\n", + func, gdes->vname); + return -1; + }; + if (param >= 0.0 && param <= 100.0) { + gdes->vf.param = param; + gdes->vf.val = DNAN; /* undefined */ + gdes->vf.when = 0; /* undefined */ + } else { + rrd_set_error + ("Parameter '%f' out of range in VDEF '%s'\n", + param, gdes->vname); + return -1; + }; + break; + case VDEF_MAXIMUM: + case VDEF_AVERAGE: + case VDEF_STDEV: + case VDEF_MINIMUM: + case VDEF_TOTAL: + case VDEF_FIRST: + case VDEF_LAST: + case VDEF_LSLSLOPE: + case VDEF_LSLINT: + case VDEF_LSLCORREL: + if (isnan(param)) { + gdes->vf.param = DNAN; + gdes->vf.val = DNAN; + gdes->vf.when = 0; + } else { + rrd_set_error + ("Function '%s' needs no parameter in VDEF '%s'\n", + func, gdes->vname); + return -1; + }; + break; }; return 0; } -int -vdef_calc(im,gdi) -image_desc_t *im; -int gdi; + + +int vdef_calc( + image_desc_t *im, + int gdi) { - graph_desc_t *src,*dst; - rrd_value_t *data; - long step,steps; + graph_desc_t *src, *dst; + rrd_value_t *data; + long step, steps; dst = &im->gdes[gdi]; src = &im->gdes[dst->vidx]; data = src->data + src->ds; - steps = (src->end - src->start) / src->step; + steps = (src->end - src->start) / src->step; #if 0 -printf("DEBUG: start == %lu, end == %lu, %lu steps\n" - ,src->start - ,src->end - ,steps - ); + printf + ("DEBUG: start == %lu, end == %lu, %lu steps\n", + src->start, src->end, steps); #endif - switch (dst->vf.op) { - case VDEF_PERCENT: { - rrd_value_t * array; - int field; - - - if ((array = malloc(steps*sizeof(double)))==NULL) { - rrd_set_error("malloc VDEV_PERCENT"); - return -1; - } - for (step=0;step < steps; step++) { - array[step]=data[step*src->ds_cnt]; - } - qsort(array,step,sizeof(double),vdef_percent_compar); - - field = (steps-1)*dst->vf.param/100; - dst->vf.val = array[field]; - dst->vf.when = 0; /* no time component */ + case VDEF_PERCENT:{ + rrd_value_t *array; + int field; + if ((array = (rrd_value_t*)malloc(steps * sizeof(double))) == NULL) { + rrd_set_error("malloc VDEV_PERCENT"); + return -1; + } + for (step = 0; step < steps; step++) { + array[step] = data[step * src->ds_cnt]; + } + qsort(array, step, sizeof(double), vdef_percent_compar); + field = (steps - 1) * dst->vf.param / 100; + dst->vf.val = array[field]; + dst->vf.when = 0; /* no time component */ + free(array); #if 0 -for(step=0;stepds_cnt])) step++; - if (step == steps) { - dst->vf.val = DNAN; - dst->vf.when = 0; - } else { - dst->vf.val = data[step*src->ds_cnt]; - dst->vf.when = src->start + (step+1)*src->step; - } - while (step != steps) { - if (finite(data[step*src->ds_cnt])) { - if (data[step*src->ds_cnt] > dst->vf.val) { - dst->vf.val = data[step*src->ds_cnt]; - dst->vf.when = src->start + (step+1)*src->step; - } - } - step++; - } - break; - case VDEF_TOTAL: - case VDEF_AVERAGE: { - int cnt=0; - double sum=0.0; - for (step=0;stepds_cnt])) { - sum += data[step*src->ds_cnt]; - cnt ++; - }; - } - if (cnt) { - if (dst->vf.op == VDEF_TOTAL) { - dst->vf.val = sum*src->step; - dst->vf.when = cnt*src->step; /* not really "when" */ - } else { - dst->vf.val = sum/cnt; - dst->vf.when = 0; /* no time component */ - }; - } else { - dst->vf.val = DNAN; - dst->vf.when = 0; - } - } - break; - case VDEF_MINIMUM: - step=0; - while (step != steps && isnan(data[step*src->ds_cnt])) step++; - if (step == steps) { - dst->vf.val = DNAN; - dst->vf.when = 0; - } else { - dst->vf.val = data[step*src->ds_cnt]; - dst->vf.when = src->start + (step+1)*src->step; - } - while (step != steps) { - if (finite(data[step*src->ds_cnt])) { - if (data[step*src->ds_cnt] < dst->vf.val) { - dst->vf.val = data[step*src->ds_cnt]; - dst->vf.when = src->start + (step+1)*src->step; - } - } - step++; - } - break; - case VDEF_FIRST: - /* The time value returned here is one step before the - * actual time value. This is the start of the first - * non-NaN interval. - */ - step=0; - while (step != steps && isnan(data[step*src->ds_cnt])) step++; - if (step == steps) { /* all entries were NaN */ - dst->vf.val = DNAN; - dst->vf.when = 0; - } else { - dst->vf.val = data[step*src->ds_cnt]; - dst->vf.when = src->start + step*src->step; - } - break; - case VDEF_LAST: - /* The time value returned here is the - * actual time value. This is the end of the last - * non-NaN interval. - */ - step=steps-1; - while (step >= 0 && isnan(data[step*src->ds_cnt])) step--; - if (step < 0) { /* all entries were NaN */ - dst->vf.val = DNAN; - dst->vf.when = 0; - } else { - dst->vf.val = data[step*src->ds_cnt]; - dst->vf.when = src->start + (step+1)*src->step; - } - break; + } + break; + case VDEF_PERCENTNAN:{ + rrd_value_t *array; + int field; + /* count number of "valid" values */ + int nancount=0; + for (step = 0; step < steps; step++) { + if (!isnan(data[step * src->ds_cnt])) { nancount++; } + } + /* and allocate it */ + if ((array = (rrd_value_t*)malloc(nancount * sizeof(double))) == NULL) { + rrd_set_error("malloc VDEV_PERCENT"); + return -1; + } + /* and fill it in */ + field=0; + for (step = 0; step < steps; step++) { + if (!isnan(data[step * src->ds_cnt])) { + array[field] = data[step * src->ds_cnt]; + field++; + } + } + qsort(array, nancount, sizeof(double), vdef_percent_compar); + field = (nancount - 1) * dst->vf.param / 100; + dst->vf.val = array[field]; + dst->vf.when = 0; /* no time component */ + free(array); + } + break; + case VDEF_MAXIMUM: + step = 0; + while (step != steps && isnan(data[step * src->ds_cnt])) + step++; + if (step == steps) { + dst->vf.val = DNAN; + dst->vf.when = 0; + } else { + dst->vf.val = data[step * src->ds_cnt]; + dst->vf.when = src->start + (step + 1) * src->step; + } + while (step != steps) { + if (finite(data[step * src->ds_cnt])) { + if (data[step * src->ds_cnt] > dst->vf.val) { + dst->vf.val = data[step * src->ds_cnt]; + dst->vf.when = src->start + (step + 1) * src->step; + } + } + step++; + } + break; + case VDEF_TOTAL: + case VDEF_STDEV: + case VDEF_AVERAGE:{ + int cnt = 0; + double sum = 0.0; + double average = 0.0; + + for (step = 0; step < steps; step++) { + if (finite(data[step * src->ds_cnt])) { + sum += data[step * src->ds_cnt]; + cnt++; + }; + } + if (cnt) { + if (dst->vf.op == VDEF_TOTAL) { + dst->vf.val = sum * src->step; + dst->vf.when = 0; /* no time component */ + } else if (dst->vf.op == VDEF_AVERAGE) { + dst->vf.val = sum / cnt; + dst->vf.when = 0; /* no time component */ + } else { + average = sum / cnt; + sum = 0.0; + for (step = 0; step < steps; step++) { + if (finite(data[step * src->ds_cnt])) { + sum += pow((data[step * src->ds_cnt] - average), 2.0); + }; + } + dst->vf.val = pow(sum / cnt, 0.5); + dst->vf.when = 0; /* no time component */ + }; + } else { + dst->vf.val = DNAN; + dst->vf.when = 0; + } + } + break; + case VDEF_MINIMUM: + step = 0; + while (step != steps && isnan(data[step * src->ds_cnt])) + step++; + if (step == steps) { + dst->vf.val = DNAN; + dst->vf.when = 0; + } else { + dst->vf.val = data[step * src->ds_cnt]; + dst->vf.when = src->start + (step + 1) * src->step; + } + while (step != steps) { + if (finite(data[step * src->ds_cnt])) { + if (data[step * src->ds_cnt] < dst->vf.val) { + dst->vf.val = data[step * src->ds_cnt]; + dst->vf.when = src->start + (step + 1) * src->step; + } + } + step++; + } + break; + case VDEF_FIRST: + /* The time value returned here is one step before the + * actual time value. This is the start of the first + * non-NaN interval. + */ + step = 0; + while (step != steps && isnan(data[step * src->ds_cnt])) + step++; + if (step == steps) { /* all entries were NaN */ + dst->vf.val = DNAN; + dst->vf.when = 0; + } else { + dst->vf.val = data[step * src->ds_cnt]; + dst->vf.when = src->start + step * src->step; + } + break; + case VDEF_LAST: + /* The time value returned here is the + * actual time value. This is the end of the last + * non-NaN interval. + */ + step = steps - 1; + while (step >= 0 && isnan(data[step * src->ds_cnt])) + step--; + if (step < 0) { /* all entries were NaN */ + dst->vf.val = DNAN; + dst->vf.when = 0; + } else { + dst->vf.val = data[step * src->ds_cnt]; + dst->vf.when = src->start + (step + 1) * src->step; + } + break; + case VDEF_LSLSLOPE: + case VDEF_LSLINT: + case VDEF_LSLCORREL:{ + /* Bestfit line by linear least squares method */ + + int cnt = 0; + double SUMx, SUMy, SUMxy, SUMxx, SUMyy, slope, y_intercept, correl; + + SUMx = 0; + SUMy = 0; + SUMxy = 0; + SUMxx = 0; + SUMyy = 0; + for (step = 0; step < steps; step++) { + if (finite(data[step * src->ds_cnt])) { + cnt++; + SUMx += step; + SUMxx += step * step; + SUMxy += step * data[step * src->ds_cnt]; + SUMy += data[step * src->ds_cnt]; + SUMyy += data[step * src->ds_cnt] * data[step * src->ds_cnt]; + }; + } + + slope = (SUMx * SUMy - cnt * SUMxy) / (SUMx * SUMx - cnt * SUMxx); + y_intercept = (SUMy - slope * SUMx) / cnt; + correl = + (SUMxy - + (SUMx * SUMy) / cnt) / + sqrt((SUMxx - + (SUMx * SUMx) / cnt) * (SUMyy - (SUMy * SUMy) / cnt)); + if (cnt) { + if (dst->vf.op == VDEF_LSLSLOPE) { + dst->vf.val = slope; + dst->vf.when = 0; + } else if (dst->vf.op == VDEF_LSLINT) { + dst->vf.val = y_intercept; + dst->vf.when = 0; + } else if (dst->vf.op == VDEF_LSLCORREL) { + dst->vf.val = correl; + dst->vf.when = 0; + }; + } else { + dst->vf.val = DNAN; + dst->vf.when = 0; + } + } + break; } return 0; } /* NaN < -INF < finite_values < INF */ -int -vdef_percent_compar(a,b) -const void *a,*b; +int vdef_percent_compar( + const void + *a, + const void + *b) { /* Equality is not returned; this doesn't hurt except * (maybe) for a little performance. */ /* First catch NaN values. They are smallest */ - if (isnan( *(double *)a )) return -1; - if (isnan( *(double *)b )) return 1; - + if (isnan(*(double *) a)) + return -1; + if (isnan(*(double *) b)) + return 1; /* NaN doesn't reach this part so INF and -INF are extremes. * The sign from isinf() is compatible with the sign we return */ - if (isinf( *(double *)a )) return isinf( *(double *)a ); - if (isinf( *(double *)b )) return isinf( *(double *)b ); - + if (isinf(*(double *) a)) + return isinf(*(double *) a); + if (isinf(*(double *) b)) + return isinf(*(double *) b); /* If we reach this, both values must be finite */ - if ( *(double *)a < *(double *)b ) return -1; else return 1; + if (*(double *) a < *(double *) b) + return -1; + else + return 1; +} + +void grinfo_push( + image_desc_t *im, + char *key, + rrd_info_type_t type, + rrd_infoval_t value) +{ + im->grinfo_current = rrd_info_push(im->grinfo_current, key, type, value); + if (im->grinfo == NULL) { + im->grinfo = im->grinfo_current; + } }