1 /*****************************************************************************
2 * RRDtool 1.2.9 Copyright by Tobi Oetiker, 1997-2005
3 *****************************************************************************
4 * rrd_format.c RRD Database Format helper functions
5 *****************************************************************************
8 * Revision 1.5 2004/05/18 18:53:03 oetiker
9 * big spell checking patch -- slif@bellsouth.net
11 * Revision 1.4 2003/02/13 07:05:27 oetiker
12 * Find attached the patch I promised to send to you. Please note that there
13 * are three new source files (src/rrd_is_thread_safe.h, src/rrd_thread_safe.c
14 * and src/rrd_not_thread_safe.c) and the introduction of librrd_th. This
15 * library is identical to librrd, but it contains support code for per-thread
16 * global variables currently used for error information only. This is similar
17 * to how errno per-thread variables are implemented. librrd_th must be linked
18 * alongside of libpthred
20 * There is also a new file "THREADS", holding some documentation.
22 * -- Peter Stamfest <peter@stamfest.at>
24 * Revision 1.3 2002/02/01 20:34:49 oetiker
25 * fixed version number and date/time
27 * Revision 1.2 2001/03/10 23:54:39 oetiker
28 * Support for COMPUTE data sources (CDEF data sources). Removes the RPN
29 * parser and calculator from rrd_graph and puts then in a new file,
30 * rrd_rpncalc.c. Changes to core files rrd_create and rrd_update. Some
31 * clean-up of aberrant behavior stuff, including a bug fix.
32 * Documentation update (rrdcreate.pod, rrdupdate.pod). Change xml format.
33 * -- Jake Brutlag <jakeb@corp.webtv.net>
35 * Revision 1.1.1.1 2001/02/25 22:25:05 oetiker
38 * Revision 1.3 1998/03/08 12:35:11 oetiker
39 * checkpointing things because the current setup seems to work
40 * according to the things said in the manpages
42 * Revision 1.2 1998/02/26 22:58:22 oetiker
45 * Revision 1.1 1998/02/21 16:14:41 oetiker
49 *****************************************************************************/
52 #define converter(VV,VVV) \
53 if (strcmp(#VV, string) == 0) return VVV;
55 /* conversion functions to allow symbolic entry of enumerations */
56 enum dst_en dst_conv(char *string)
58 converter(COUNTER,DST_COUNTER)
59 converter(ABSOLUTE,DST_ABSOLUTE)
60 converter(GAUGE,DST_GAUGE)
61 converter(DERIVE,DST_DERIVE)
62 converter(COMPUTE,DST_CDEF)
63 rrd_set_error("unknown data acquisition function '%s'",string);
68 enum cf_en cf_conv(char *string)
71 converter(AVERAGE,CF_AVERAGE)
72 converter(MIN,CF_MINIMUM)
73 converter(MAX,CF_MAXIMUM)
74 converter(LAST,CF_LAST)
75 converter(HWPREDICT,CF_HWPREDICT)
76 converter(DEVPREDICT,CF_DEVPREDICT)
77 converter(SEASONAL,CF_SEASONAL)
78 converter(DEVSEASONAL,CF_DEVSEASONAL)
79 converter(FAILURES,CF_FAILURES)
80 rrd_set_error("unknown consolidation function '%s'",string);
87 ds_match(rrd_t *rrd,char *ds_nam){
89 for(i=0;i<rrd->stat_head->ds_cnt;i++)
90 if ((strcmp(ds_nam,rrd->ds_def[i].ds_nam))==0)
92 rrd_set_error("unknown data source name '%s'",ds_nam);