Merge branch 'ab/prettyping'

diff --git a/configure.ac b/configure.ac
index de0a8b0..f9be869 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -48,7 +48,7 @@ LT_INIT([dlopen])
 # Checks for header files.
 AC_HEADER_STDC
 AC_HEADER_TIME
-AC_CHECK_HEADERS([math.h signal.h fcntl.h inttypes.h netdb.h stdint.h stdlib.h string.h sys/socket.h sys/time.h unistd.h])
+AC_CHECK_HEADERS([math.h signal.h fcntl.h inttypes.h netdb.h stdint.h stdlib.h string.h sys/socket.h sys/time.h unistd.h locale.h langinfo.h])
 
 # This sucks, but what can I do..?
 AC_CHECK_HEADERS(netinet/in_systm.h, [], [],
@@ -185,11 +185,25 @@ AC_CHECK_FUNCS(nanosleep, [],
                AC_MSG_ERROR(cannot find nanosleep)))
 AM_CONDITIONAL(BUILD_WITH_LIBRT, test "x$nanosleep_needs_rt" = "xyes")
 
-with_ncurses="yes"
-AC_CHECK_HEADERS(ncurses.h, [with_ncurses="yes"], [with_ncurses="no"])
+with_ncurses="no"
+AC_CHECK_HEADERS(ncursesw/ncurses.h ncurses.h, [with_ncurses="yes"], [])
 if test "x$with_ncurses" = "xyes"
 then
-       AC_CHECK_LIB(ncurses, mvwprintw, [with_ncurses="yes"], [with_ncurses="no"])
+       have_ncursesw="no"
+       have_ncurses="no"
+       NCURSES_LIB=""
+
+       AC_CHECK_LIB(ncursesw, mvwprintw, [have_ncursesw="yes"], [have_ncursesw="no"])
+       AC_CHECK_LIB(ncurses, mvwprintw, [have_ncurses="yes"], [have_ncurses="no"])
+
+       if test "x$have_ncursesw" = "xyes"; then
+               NCURSES_LIB="-lncursesw"
+       else if test "x$have_ncurses" = "xyes"; then
+               NCURSES_LIB="-lncurses"
+       else
+               with_ncurses="no"
+       fi; fi
+       AC_SUBST(NCURSES_LIB)
 fi
 AM_CONDITIONAL(BUILD_WITH_LIBNCURSES, test "x$with_ncurses" = "xyes")
 

diff --git a/src/Makefile.am b/src/Makefile.am
index 1326783..844e0a4 100644 (file)
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -46,7 +46,7 @@ bin_PROGRAMS += noping
 
 noping_SOURCES = oping.c
 noping_CPPFLAGS = $(AM_CPPFLAGS) -DUSE_NCURSES=1
-noping_LDADD = liboping.la -lm -lncurses
+noping_LDADD = liboping.la -lm $(NCURSES_LIB)
 if BUILD_WITH_LIBRT
 noping_LDADD += -lrt
 endif

diff --git a/src/mans/oping.pod b/src/mans/oping.pod
index 56712fd..aedb728 100644 (file)
--- a/src/mans/oping.pod
+++ b/src/mans/oping.pod
@@ -166,6 +166,11 @@ I<Explicit Congestion Notification> (ECN), even if the deprecated
 I<Type of Service> (ToS) aliases were used to specify the bits of outgoing
 packets.
 
+=item B<-u>|B<-U>
+
+I<noping only> B<-u> forces UTF-8 output, B<-U> disables UTF-8 output. If
+neither is given, the codeset is automatically determined from the locale.
+
 =back
 
 =head1 COLORS

diff --git a/src/oping.c b/src/oping.c
index caf655f..b3beeb0 100644 (file)
--- a/src/oping.c
+++ b/src/oping.c
@@ -74,13 +74,52 @@
 #include <sys/types.h>
 #endif
 
+#include <locale.h>
+#include <langinfo.h>
+
 #if USE_NCURSES
 # define NCURSES_OPAQUE 1
-# include <ncurses.h>
+/* http://newsgroups.derkeiler.com/Archive/Rec/rec.games.roguelike.development/2010-09/msg00050.html */
+# define _X_OPEN_SOURCE_EXTENDED
+
+# if HAVE_NCURSESW_NCURSES_H
+#  include <ncursesw/ncurses.h>
+# elif HAVE_NCURSES_H
+#  include <ncurses.h>
+# endif
 
 # define OPING_GREEN 1
 # define OPING_YELLOW 2
 # define OPING_RED 3
+# define OPING_GREEN_HIST 4
+# define OPING_YELLOW_HIST 5
+# define OPING_RED_HIST 6
+
+static char const * const hist_symbols_utf8[] = {
+       "▁", "▂", "▃", "▄", "▅", "▆", "▇", "█" };
+static size_t const hist_symbols_utf8_num = sizeof (hist_symbols_utf8)
+       / sizeof (hist_symbols_utf8[0]);
+
+/* scancodes for 6 levels of horizontal bars, ncurses-specific */
+/* those are not the usual constants because those are not constant */
+static int const hist_symbols_acs[] = {
+       115, /* ACS_S9 "⎽" */
+       114, /* ACS_S7 "⎼" */
+       113, /* ACS_S5 "─" */
+       112, /* ACS_S3 "⎻" */
+       111  /* ACS_S1 "⎺" */
+};
+static size_t const hist_symbols_acs_num = sizeof (hist_symbols_acs)
+       / sizeof (hist_symbols_acs[0]);
+
+/* use different colors without a background for scancodes */
+static int const hist_colors_utf8[] = {
+       OPING_GREEN_HIST, OPING_YELLOW_HIST, OPING_RED_HIST };
+static int const hist_colors_acs[] = {
+       OPING_GREEN, OPING_YELLOW, OPING_RED };
+/* assuming that both arrays are the same size */
+static size_t const hist_colors_num = sizeof (hist_colors_utf8)
+       / sizeof (hist_colors_utf8[0]);
 #endif
 
 #include "oping.h"
@@ -125,6 +164,9 @@ static char   *opt_filename   = NULL;
 static int     opt_count      = -1;
 static int     opt_send_ttl   = 64;
 static uint8_t opt_send_qos   = 0;
+#if USE_NCURSES
+static int     opt_utf8       = 0;
+#endif
 
 static int host_num = 0;
 
@@ -269,6 +311,9 @@ static void usage_exit (const char *name, int status) /* {{{ */
                        "  -I srcaddr   source address\n"
                        "  -D device    outgoing interface name\n"
                        "  -f filename  filename to read hosts from\n"
+#if USE_NCURSES
+                       "  -u / -U      force / disable UTF-8 output\n"
+#endif
 
                        "\noping "PACKAGE_VERSION", http://verplant.org/liboping/\n"
                        "by Florian octo Forster <octo@verplant.org>\n"
@@ -471,7 +516,11 @@ static int read_options (int argc, char **argv) /* {{{ */
 
        while (1)
        {
-               optchar = getopt (argc, argv, "46c:hi:I:t:Q:f:D:");
+               optchar = getopt (argc, argv, "46c:hi:I:t:Q:f:D:"
+#if USE_NCURSES
+                               "uU"
+#endif
+                               );
 
                if (optchar == -1)
                        break;
@@ -542,6 +591,15 @@ static int read_options (int argc, char **argv) /* {{{ */
                                set_opt_send_qos (optarg);
                                break;
 
+#if USE_NCURSES
+                       case 'u':
+                               opt_utf8 = 2;
+                               break;
+                       case 'U':
+                               opt_utf8 = 1;
+                               break;
+#endif
+
                        case 'h':
                                usage_exit (argv[0], 0);
                                break;
@@ -601,12 +659,120 @@ static void time_calc (struct timespec *ts_dest, /* {{{ */
 } /* }}} void time_calc */
 
 #if USE_NCURSES
-static int update_stats_from_context (ping_context_t *ctx) /* {{{ */
+static _Bool has_utf8() /* {{{ */
+{
+# if HAVE_NCURSESW_NCURSES_H
+       if (!opt_utf8)
+       {
+               /* Automatically determine */
+               if (strcasecmp ("UTF-8", nl_langinfo (CODESET)) == 0)
+                       opt_utf8 = 2;
+               else
+                       opt_utf8 = 1;
+       }
+       return ((_Bool) (opt_utf8 - 1));
+# else
+       return (0);
+# endif
+} /* }}} _Bool has_utf8 */
+
+static int update_prettyping_graph (ping_context_t *ctx, /* {{{ */
+               double latency, unsigned int sequence)
+{
+       int color = OPING_RED;
+       char const *symbol = "!";
+       int symbolc = '!';
+
+       int x_max;
+       int x_pos;
+
+       x_max = getmaxx (ctx->window);
+       x_pos = ((sequence - 1) % (x_max - 4)) + 2;
+
+       if (latency >= 0.0)
+       {
+               double ratio;
+
+               size_t symbols_num = hist_symbols_acs_num;
+               size_t colors_num = 1;
+
+               size_t index_symbols;
+               size_t index_colors;
+               size_t intensity;
+
+               /* latency is in milliseconds, opt_interval is in seconds. */
+               ratio = (latency * 0.001) / opt_interval;
+               if (ratio > 1) {
+                       ratio = 1.0;
+               }
+
+               if (has_utf8 ())
+                       symbols_num = hist_symbols_utf8_num;
+
+               if (has_colors () == TRUE)
+                       colors_num = hist_colors_num;
+
+               intensity = (size_t) (ratio * ((double) (symbols_num * colors_num)));
+               if (intensity >= (symbols_num * colors_num))
+                       intensity = (symbols_num * colors_num) - 1;
+
+               index_symbols = intensity % symbols_num;
+               assert (index_symbols < symbols_num);
+
+               index_colors = intensity / symbols_num;
+               assert (index_colors < colors_num);
+
+               if (has_utf8())
+               {
+                       color = hist_colors_utf8[index_colors];
+                       symbol = hist_symbols_utf8[index_symbols];
+               }
+               else
+               {
+                       color = hist_colors_acs[index_colors];
+                       symbolc = hist_symbols_acs[index_symbols] | A_ALTCHARSET;
+               }
+       }
+       else /* if (!(latency >= 0.0)) */
+               wattron (ctx->window, A_BOLD);
+
+       if (has_colors () == TRUE)
+               wattron (ctx->window, COLOR_PAIR(color));
+
+       if (has_utf8())
+               mvwprintw (ctx->window, /* y = */ 3, /* x = */ x_pos, symbol);
+       else
+               mvwaddch (ctx->window, /* y = */ 3, /* x = */ x_pos, symbolc);
+
+       if (has_colors () == TRUE)
+               wattroff (ctx->window, COLOR_PAIR(color));
+
+       /* Use negation here to handle NaN correctly. */
+       if (!(latency >= 0.0))
+               wattroff (ctx->window, A_BOLD);
+
+       wprintw (ctx->window, " ");
+       return (0);
+} /* }}} int update_prettyping_graph */
+
+static int update_stats_from_context (ping_context_t *ctx, pingobj_iter_t *iter) /* {{{ */
 {
+       double latency = -1.0;
+       size_t buffer_len = sizeof (latency);
+
+       ping_iterator_get_info (iter, PING_INFO_LATENCY,
+                       &latency, &buffer_len);
+
+       unsigned int sequence = 0;
+       buffer_len = sizeof (sequence);
+       ping_iterator_get_info (iter, PING_INFO_SEQUENCE,
+                       &sequence, &buffer_len);
+
+
        if ((ctx == NULL) || (ctx->window == NULL))
                return (EINVAL);
 
-       werase (ctx->window);
+       /* werase (ctx->window); */
 
        box (ctx->window, 0, 0);
        wattron (ctx->window, A_BOLD);
@@ -636,6 +802,8 @@ static int update_stats_from_context (ping_context_t *ctx) /* {{{ */
                                deviation);
        }
 
+       update_prettyping_graph (ctx, latency, sequence);
+
        wrefresh (ctx->window);
 
        return (0);
@@ -652,7 +820,7 @@ static int on_resize (pingobj_t *ping) /* {{{ */
        if ((height < 1) || (width < 1))
                return (EINVAL);
 
-       main_win_height = height - (4 * host_num);
+       main_win_height = height - (5 * host_num);
        wresize (main_win, main_win_height, /* width = */ width);
        /* Allow scrolling */
        scrollok (main_win, TRUE);
@@ -676,9 +844,9 @@ static int on_resize (pingobj_t *ping) /* {{{ */
                        delwin (context->window);
                        context->window = NULL;
                }
-               context->window = newwin (/* height = */ 4,
+               context->window = newwin (/* height = */ 5,
                                /* width = */ width,
-                               /* y = */ main_win_height + (4 * context->index),
+                               /* y = */ main_win_height + (5 * context->index),
                                /* x = */ 0);
        }
 
@@ -726,9 +894,12 @@ static int pre_loop_hook (pingobj_t *ping) /* {{{ */
                init_pair (OPING_GREEN,  COLOR_GREEN,  /* default = */ 0);
                init_pair (OPING_YELLOW, COLOR_YELLOW, /* default = */ 0);
                init_pair (OPING_RED,    COLOR_RED,    /* default = */ 0);
+               init_pair (OPING_GREEN_HIST,  COLOR_GREEN,  COLOR_BLACK);
+               init_pair (OPING_YELLOW_HIST, COLOR_YELLOW, COLOR_GREEN);
+               init_pair (OPING_RED_HIST,    COLOR_RED,    COLOR_YELLOW);
        }
 
-       main_win_height = height - (4 * host_num);
+       main_win_height = height - (5 * host_num);
        main_win = newwin (/* height = */ main_win_height,
                        /* width = */ width,
                        /* y = */ 0, /* x = */ 0);
@@ -755,9 +926,9 @@ static int pre_loop_hook (pingobj_t *ping) /* {{{ */
                        delwin (context->window);
                        context->window = NULL;
                }
-               context->window = newwin (/* height = */ 4,
+               context->window = newwin (/* height = */ 5,
                                /* width = */ width,
-                               /* y = */ main_win_height + (4 * context->index),
+                               /* y = */ main_win_height + (5 * context->index),
                                /* x = */ 0);
        }
 
@@ -950,7 +1121,7 @@ static void update_host_hook (pingobj_iter_t *iter, /* {{{ */
        }
 
 #if USE_NCURSES
-       update_stats_from_context (context);
+       update_stats_from_context (context, iter);
        wrefresh (main_win);
 #endif
 } /* }}} void update_host_hook */
@@ -1030,6 +1201,7 @@ int main (int argc, char **argv) /* {{{ */
        }
 #endif
 
+        setlocale(LC_ALL, "");
        optind = read_options (argc, argv);
 
 #if !_POSIX_SAVED_IDS