*****************************************************************************
* $Id$
* $Log$
+ * 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>
#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
/* main function blocks */
int rrd_create(int, char **);
int rrd_update(int, char **);
-int rrd_graph(int, char **, char ***, int *, int *);
+int rrd_graph(int, char **, char ***, int *, int *, FILE *);
int rrd_fetch(int, char **, time_t *, time_t *, unsigned long *,
unsigned long *, char ***, rrd_value_t **);
int rrd_restore(int, char **);
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(char *filename);
+
/* Transplanted from parsetime.h */
typedef enum {
ABSOLUTE_TIME,
#define TIME_OK NULL
-struct time_value {
+struct rrd_time_value {
timetype type;
long offset;
struct tm tm;
};
-char *parsetime(char *spec, struct time_value *ptv);
+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(char *spec, struct rrd_time_value *ptv);
/* END parsetime.h */
-int proc_start_end (struct time_value *, struct time_value *, time_t *, time_t *);
+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 */