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- /*****************************************************************************
- * RRDtool 1.4.9 Copyright by Tobi Oetiker, 1997-2014
- *****************************************************************************
- * rrd_format.c RRD Database Format helper functions
- *****************************************************************************
- * $Id$
- * $Log$
- * Revision 1.5 2004/05/18 18:53:03 oetiker
- * big spell checking patch -- slif@bellsouth.net
- *
- * Revision 1.4 2003/02/13 07:05:27 oetiker
- * Find attached the patch I promised to send to you. Please note that there
- * are three new source files (src/rrd_is_thread_safe.h, src/rrd_thread_safe.c
- * and src/rrd_not_thread_safe.c) and the introduction of librrd_th. This
- * library is identical to librrd, but it contains support code for per-thread
- * global variables currently used for error information only. This is similar
- * to how errno per-thread variables are implemented. librrd_th must be linked
- * alongside of libpthred
- *
- * There is also a new file "THREADS", holding some documentation.
- *
- * -- Peter Stamfest <peter@stamfest.at>
- *
- * Revision 1.3 2002/02/01 20:34:49 oetiker
- * fixed version number and date/time
- *
- * Revision 1.2 2001/03/10 23:54:39 oetiker
- * Support for COMPUTE data sources (CDEF data sources). Removes the RPN
- * parser and calculator from rrd_graph and puts then in a new file,
- * rrd_rpncalc.c. Changes to core files rrd_create and rrd_update. Some
- * clean-up of aberrant behavior stuff, including a bug fix.
- * Documentation update (rrdcreate.pod, rrdupdate.pod). Change xml format.
- * -- Jake Brutlag <jakeb@corp.webtv.net>
- *
- * Revision 1.1.1.1 2001/02/25 22:25:05 oetiker
- * checkin
- *
- * Revision 1.3 1998/03/08 12:35:11 oetiker
- * checkpointing things because the current setup seems to work
- * according to the things said in the manpages
- *
- * Revision 1.2 1998/02/26 22:58:22 oetiker
- * fixed define
- *
- * Revision 1.1 1998/02/21 16:14:41 oetiker
- * Initial revision
- *
- *
- *****************************************************************************/
- #include "rrd_tool.h"
- #ifdef WIN32
- #include "stdlib.h"
- #endif
-
- #define converter(VV,VVV) \
- if (strcmp(#VV, string) == 0) return VVV;
-
- /* conversion functions to allow symbolic entry of enumerations */
- enum dst_en dst_conv( char *string) {
- converter(COUNTER, DST_COUNTER)
- converter(ABSOLUTE, DST_ABSOLUTE)
- converter(GAUGE, DST_GAUGE)
- converter(DERIVE, DST_DERIVE)
- converter(COMPUTE, DST_CDEF)
- return (enum dst_en)(-1);
- }
-
-
- enum cf_en cf_conv( const char *string) {
-
- converter(AVERAGE, CF_AVERAGE)
- converter(MIN, CF_MINIMUM)
- converter(MAX, CF_MAXIMUM)
- converter(LAST, CF_LAST)
- converter(HWPREDICT, CF_HWPREDICT)
- converter(MHWPREDICT, CF_MHWPREDICT)
- converter(DEVPREDICT, CF_DEVPREDICT)
- converter(SEASONAL, CF_SEASONAL)
- converter(DEVSEASONAL, CF_DEVSEASONAL)
- converter(FAILURES, CF_FAILURES)
- return (enum cf_en)(-1);
- }
-
- #undef converter
-
- long ds_match( rrd_t *rrd, char *ds_nam) {
- unsigned long i;
-
- for (i = 0; i < rrd->stat_head->ds_cnt; i++)
- if ((strcmp(ds_nam, rrd->ds_def[i].ds_nam)) == 0)
- return i;
- return -RRD_ERR_UNKNOWN_DS_NAME;
- }
-
- off_t rrd_get_header_size( rrd_t *rrd) {
- return sizeof(stat_head_t) + \
- sizeof(ds_def_t) * rrd->stat_head->ds_cnt + \
- sizeof(rra_def_t) * rrd->stat_head->rra_cnt + \
- ( atoi(rrd->stat_head->version) < 3 ? sizeof(time_t) : sizeof(live_head_t) ) + \
- sizeof(pdp_prep_t) * rrd->stat_head->ds_cnt + \
- sizeof(cdp_prep_t) * rrd->stat_head->ds_cnt * rrd->stat_head->rra_cnt + \
- sizeof(rra_ptr_t) * rrd->stat_head->rra_cnt;
- }
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