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/***************************************************************************** * RRDtool 1.2.12 Copyright by Tobi Oetiker, 1997-2005 ***************************************************************************** * rrdlib.h Public header file for librrd ***************************************************************************** * $Id: rrd.h 729 2005-12-18 20:30:31Z oetiker $ * $Log$ * Revision 1.9 2005/02/13 16:13:33 oetiker * let rrd_graph return the actual value range it picked ... * -- Henrik Stoerner <henrik@hswn.dk> * * Revision 1.8 2004/05/26 22:11:12 oetiker * reduce compiler warnings. Many small fixes. -- Mike Slifcak <slif@bellsouth.net> * * Revision 1.7 2003/11/12 22:14:26 oetiker * allow to pass an open filehandle into rrd_graph as an extra argument * * Revision 1.6 2003/11/11 19:46:21 oetiker * replaced time_value with rrd_time_value as MacOS X introduced a struct of that name in their standard headers * * Revision 1.5 2003/04/25 18:35:08 jake * Alternate update interface, updatev. Returns info about CDPs written to disk as result of update. Output format is similar to rrd_info, a hash of key-values. * * Revision 1.4 2003/04/01 22:52:23 jake * Fix Win32 build. VC++ 6.0 and 7.0 now use the thread-safe code. * * Revision 1.3 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 1.2 2002/05/07 21:58:32 oetiker * new command rrdtool xport integrated * -- Wolfgang Schrimm <Wolfgang.Schrimm@urz.uni-heidelberg.de> * * Revision 1.1.1.1 2001/02/25 22:25:05 oetiker * checkin * *****************************************************************************/ #ifdef __cplusplus extern "C" { #endif #ifndef _RRDLIB_H #define _RRDLIB_H #include <time.h> #include <stdio.h> /* for FILE */ /* Transplanted from rrd_format.h */ typedef double rrd_value_t; /* the data storage type is * double */ /* END rrd_format.h */ /* main function blocks */ int rrd_create(int, char **); int rrd_update(int, char **); int rrd_graph(int, char **, char ***, int *, int *, FILE *, double *, double *); int rrd_fetch(int, char **, time_t *, time_t *, unsigned long *, unsigned long *, char ***, rrd_value_t **); int rrd_restore(int, char **); int rrd_dump(int, char **); int rrd_tune(int, char **); time_t rrd_last(int, char **); time_t rrd_first(int, char **); int rrd_resize(int, char **); double rrd_version(void); int rrd_xport(int, char **, int *, time_t *, time_t *, unsigned long *, unsigned long *, char ***, rrd_value_t **); /* thread-safe (hopefully) */ int rrd_create_r(char *filename, unsigned long pdp_step, time_t last_up, int argc, char **argv); /* NOTE: rrd_update_r are only thread-safe if no at-style time specifications get used!!! */ int rrd_update_r(char *filename, char *_template, int argc, char **argv); int rrd_dump_r(char *filename); time_t rrd_last_r(const char *filename); time_t rrd_first_r(const char *filename, int rraindex); /* Transplanted from parsetime.h */ typedef enum { ABSOLUTE_TIME, RELATIVE_TO_START_TIME, RELATIVE_TO_END_TIME } timetype; #define TIME_OK NULL struct rrd_time_value { timetype type; long offset; struct tm tm; }; struct rrd_context { int len; int errlen; char *lib_errstr; char *rrd_error; }; /* returns the current per-thread rrd_context */ struct rrd_context *rrd_get_context(void); char *parsetime(const char *spec, struct rrd_time_value *ptv); /* END parsetime.h */ int proc_start_end (struct rrd_time_value *, struct rrd_time_value *, time_t *, time_t *); /* HELPER FUNCTIONS */ void rrd_set_error(char *,...); void rrd_clear_error(void); int rrd_test_error(void); char *rrd_get_error(void); /** MULTITHREADED HELPER FUNCTIONS */ struct rrd_context *rrd_new_context(void); void rrd_free_context (struct rrd_context *buf); /* void rrd_set_error_r (struct rrd_context *, char *, ...); */ /* void rrd_clear_error_r(struct rrd_context *); */ /* int rrd_test_error_r (struct rrd_context *); */ /* char *rrd_get_error_r (struct rrd_context *); */ int LockRRD(FILE *); #endif /* _RRDLIB_H */ #ifdef __cplusplus } #endif