1 /*****************************************************************************
2 * RRDtool 1.2.15 Copyright by Tobi Oetiker, 1997-2006
3 *****************************************************************************
4 * rrdlib.h Public header file for librrd
5 *****************************************************************************
8 * Revision 1.9 2005/02/13 16:13:33 oetiker
9 * let rrd_graph return the actual value range it picked ...
10 * -- Henrik Stoerner <henrik@hswn.dk>
12 * Revision 1.8 2004/05/26 22:11:12 oetiker
13 * reduce compiler warnings. Many small fixes. -- Mike Slifcak <slif@bellsouth.net>
15 * Revision 1.7 2003/11/12 22:14:26 oetiker
16 * allow to pass an open filehandle into rrd_graph as an extra argument
18 * Revision 1.6 2003/11/11 19:46:21 oetiker
19 * replaced time_value with rrd_time_value as MacOS X introduced a struct of that name in their standard headers
21 * Revision 1.5 2003/04/25 18:35:08 jake
22 * 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.
24 * Revision 1.4 2003/04/01 22:52:23 jake
25 * Fix Win32 build. VC++ 6.0 and 7.0 now use the thread-safe code.
27 * Revision 1.3 2003/02/13 07:05:27 oetiker
28 * Find attached the patch I promised to send to you. Please note that there
29 * are three new source files (src/rrd_is_thread_safe.h, src/rrd_thread_safe.c
30 * and src/rrd_not_thread_safe.c) and the introduction of librrd_th. This
31 * library is identical to librrd, but it contains support code for per-thread
32 * global variables currently used for error information only. This is similar
33 * to how errno per-thread variables are implemented. librrd_th must be linked
34 * alongside of libpthred
36 * There is also a new file "THREADS", holding some documentation.
38 * -- Peter Stamfest <peter@stamfest.at>
40 * Revision 1.2 2002/05/07 21:58:32 oetiker
41 * new command rrdtool xport integrated
42 * -- Wolfgang Schrimm <Wolfgang.Schrimm@urz.uni-heidelberg.de>
44 * Revision 1.1.1.1 2001/02/25 22:25:05 oetiker
47 *****************************************************************************/
56 #include <stdio.h> /* for FILE */
58 /* Transplanted from rrd_format.h */
59 typedef double rrd_value_t; /* the data storage type is
61 /* END rrd_format.h */
63 /* main function blocks */
64 int rrd_create(int, char **);
65 int rrd_update(int, char **);
66 int rrd_graph(int, char **, char ***, int *, int *, FILE *, double *, double *);
67 int rrd_fetch(int, char **, time_t *, time_t *, unsigned long *,
68 unsigned long *, char ***, rrd_value_t **);
69 int rrd_restore(int, char **);
70 int rrd_dump(int, char **);
71 int rrd_tune(int, char **);
72 time_t rrd_last(int, char **);
73 time_t rrd_first(int, char **);
74 int rrd_resize(int, char **);
75 char * rrd_strversion(void);
76 double rrd_version(void);
77 int rrd_xport(int, char **, int *, time_t *, time_t *,
78 unsigned long *, unsigned long *,
79 char ***, rrd_value_t **);
81 /* thread-safe (hopefully) */
82 int rrd_create_r(char *filename,
83 unsigned long pdp_step, time_t last_up,
84 int argc, char **argv);
85 /* NOTE: rrd_update_r are only thread-safe if no at-style time
86 specifications get used!!! */
87 int rrd_update_r(char *filename, char *_template,
88 int argc, char **argv);
89 int rrd_dump_r(const char *filename, char *outname);
90 time_t rrd_last_r(const char *filename);
91 time_t rrd_first_r(const char *filename, int rraindex);
93 /* Transplanted from parsetime.h */
96 RELATIVE_TO_START_TIME,
102 struct rrd_time_value {
115 /* returns the current per-thread rrd_context */
116 struct rrd_context *rrd_get_context(void);
118 char *parsetime(const char *spec, struct rrd_time_value *ptv);
119 /* END parsetime.h */
121 int proc_start_end (struct rrd_time_value *, struct rrd_time_value *, time_t *, time_t *);
123 /* HELPER FUNCTIONS */
124 void rrd_set_error(char *,...);
125 void rrd_clear_error(void);
126 int rrd_test_error(void);
127 char *rrd_get_error(void);
129 /** MULTITHREADED HELPER FUNCTIONS */
130 struct rrd_context *rrd_new_context(void);
131 void rrd_free_context (struct rrd_context *buf);
133 /* void rrd_set_error_r (struct rrd_context *, char *, ...); */
134 /* void rrd_clear_error_r(struct rrd_context *); */
135 /* int rrd_test_error_r (struct rrd_context *); */
136 /* char *rrd_get_error_r (struct rrd_context *); */
140 #endif /* _RRDLIB_H */