1 /*****************************************************************************
2 * RRDtool 1.0.33 Copyright Tobias Oetiker, 1997,1998, 1999
3 *****************************************************************************
4 * rrdlib.h Public header file for librrd
5 *****************************************************************************
8 * Revision 1.8 2004/05/26 22:11:12 oetiker
9 * reduce compiler warnings. Many small fixes. -- Mike Slifcak <slif@bellsouth.net>
11 * Revision 1.7 2003/11/12 22:14:26 oetiker
12 * allow to pass an open filehandle into rrd_graph as an extra argument
14 * Revision 1.6 2003/11/11 19:46:21 oetiker
15 * replaced time_value with rrd_time_value as MacOS X introduced a struct of that name in their standard headers
17 * Revision 1.5 2003/04/25 18:35:08 jake
18 * 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.
20 * Revision 1.4 2003/04/01 22:52:23 jake
21 * Fix Win32 build. VC++ 6.0 and 7.0 now use the thread-safe code.
23 * Revision 1.3 2003/02/13 07:05:27 oetiker
24 * Find attached the patch I promised to send to you. Please note that there
25 * are three new source files (src/rrd_is_thread_safe.h, src/rrd_thread_safe.c
26 * and src/rrd_not_thread_safe.c) and the introduction of librrd_th. This
27 * library is identical to librrd, but it contains support code for per-thread
28 * global variables currently used for error information only. This is similar
29 * to how errno per-thread variables are implemented. librrd_th must be linked
30 * alongside of libpthred
32 * There is also a new file "THREADS", holding some documentation.
34 * -- Peter Stamfest <peter@stamfest.at>
36 * Revision 1.2 2002/05/07 21:58:32 oetiker
37 * new command rrdtool xport integrated
38 * -- Wolfgang Schrimm <Wolfgang.Schrimm@urz.uni-heidelberg.de>
40 * Revision 1.1.1.1 2001/02/25 22:25:05 oetiker
43 *****************************************************************************/
52 #include <stdio.h> /* for FILE */
54 /* Transplanted from rrd_format.h */
55 typedef double rrd_value_t; /* the data storage type is
57 /* END rrd_format.h */
59 /* main function blocks */
60 int rrd_create(int, char **);
61 int rrd_update(int, char **);
62 int rrd_graph(int, char **, char ***, int *, int *, FILE *);
63 int rrd_fetch(int, char **, time_t *, time_t *, unsigned long *,
64 unsigned long *, char ***, rrd_value_t **);
65 int rrd_restore(int, char **);
66 int rrd_dump(int, char **);
67 int rrd_tune(int, char **);
68 time_t rrd_last(int, const char **);
69 int rrd_resize(int, char **);
70 int rrd_xport(int, char **, int *, time_t *, time_t *,
71 unsigned long *, unsigned long *,
72 char ***, rrd_value_t **);
74 /* thread-safe (hopefully) */
75 int rrd_create_r(char *filename,
76 unsigned long pdp_step, time_t last_up,
77 int argc, char **argv);
78 /* NOTE: rrd_update_r are only thread-safe if no at-style time
79 specifications get used!!! */
80 int rrd_update_r(char *filename, char *_template,
81 int argc, char **argv);
82 int rrd_dump_r(char *filename);
83 time_t rrd_last_r(const char *filename);
85 /* Transplanted from parsetime.h */
88 RELATIVE_TO_START_TIME,
94 struct rrd_time_value {
107 /* returns the current per-thread rrd_context */
108 struct rrd_context *rrd_get_context(void);
110 char *parsetime(const char *spec, struct rrd_time_value *ptv);
111 /* END parsetime.h */
113 int proc_start_end (struct rrd_time_value *, struct rrd_time_value *, time_t *, time_t *);
115 /* HELPER FUNCTIONS */
116 void rrd_set_error(char *,...);
117 void rrd_clear_error(void);
118 int rrd_test_error(void);
119 char *rrd_get_error(void);
121 /** MULTITHREADED HELPER FUNCTIONS */
122 struct rrd_context *rrd_new_context(void);
123 void rrd_free_context (struct rrd_context *buf);
125 /* void rrd_set_error_r (struct rrd_context *, char *, ...); */
126 /* void rrd_clear_error_r(struct rrd_context *); */
127 /* int rrd_test_error_r (struct rrd_context *); */
128 /* char *rrd_get_error_r (struct rrd_context *); */
132 #endif /* _RRDLIB_H */