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