/*****************************************************************************
- * RRDtool 1.2.19 Copyright by Tobi Oetiker, 1997-2007
+ * RRDtool 1.3rc7 Copyright by Tobi Oetiker, 1997-2008
*****************************************************************************
* rrdlib.h Public header file for librrd
*****************************************************************************
*
*****************************************************************************/
#ifdef __cplusplus
-extern "C" {
+extern "C" {
#endif
#ifndef _RRDLIB_H
#define _RRDLIB_H
+#include <sys/types.h> /* for off_t */
+#include <unistd.h> /* for off_t */
#include <time.h>
-#include <stdio.h> /* for FILE */
+#include <stdio.h> /* for FILE */
+
+
+/* Formerly rrd_nan_inf.h */
+#ifndef DNAN
+# define DNAN set_to_DNAN()
+#endif
+
+#ifndef DINF
+# define DINF set_to_DINF()
+#endif
+ double set_to_DNAN(
+ void);
+ double set_to_DINF(
+ void);
+/* end of rrd_nan_inf.h */
/* Transplanted from rrd_format.h */
-typedef double rrd_value_t; /* the data storage type is
- * double */
+ typedef double rrd_value_t; /* the data storage type is
+ * double */
/* END rrd_format.h */
+/* information about an rrd file */
+ typedef struct rrd_file_t {
+ int fd; /* file descriptor if this rrd file */
+ char *file_start; /* start address of an open rrd file */
+ off_t header_len; /* length of the header of this rrd file */
+ off_t file_len; /* total size of the rrd file */
+ off_t pos; /* current pos in file */
+ } rrd_file_t;
+
+/* rrd info interface */
+ typedef struct rrd_blob_t {
+ unsigned long size; /* size of the blob */
+ unsigned char *ptr; /* pointer */
+ } rrd_blob_t;
+
+ enum info_type { RD_I_VAL = 0,
+ RD_I_CNT,
+ RD_I_STR,
+ RD_I_INT,
+ RD_I_BLO
+ };
+
+ typedef union infoval {
+ unsigned long u_cnt;
+ rrd_value_t u_val;
+ char *u_str;
+ int u_int;
+ struct rrd_blob_t u_blo;
+ } infoval;
+
+ typedef struct info_t {
+ char *key;
+ enum info_type type;
+ union infoval value;
+ struct info_t *next;
+ } info_t;
+
+
/* 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 **);
-char * rrd_strversion(void);
-double rrd_version(void);
-int rrd_xport(int, char **, int *, time_t *, time_t *,
- unsigned long *, unsigned long *,
- char ***, rrd_value_t **);
+ int rrd_create(
+ int,
+ char **);
+ int rrd_update(
+ int,
+ char **);
+ int rrd_graph(
+ int,
+ char **,
+ char ***,
+ int *,
+ int *,
+ FILE *,
+ double *,
+ double *);
+ info_t *rrd_graph_v(
+ int,
+ char **);
+
+ 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 **);
+ char *rrd_strversion(
+ void);
+ 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);
+ int rrd_create_r(
+ const char *filename,
+ unsigned long pdp_step,
+ time_t last_up,
+ int argc,
+ const 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(const char *filename, char *outname);
-time_t rrd_last_r(const char *filename);
-time_t rrd_first_r(const char *filename, int rraindex);
+ int rrd_update_r(
+ const char *filename,
+ const char *_template,
+ int argc,
+ const char **argv);
+ int rrd_fetch_r(
+ const char *filename,
+ const char *cf,
+ time_t *start,
+ time_t *end,
+ unsigned long *step,
+ unsigned long *ds_cnt,
+ char ***ds_namv,
+ rrd_value_t **data);
+ int rrd_dump_r(
+ const char *filename,
+ char *outname);
+ time_t rrd_last_r(
+ const char *filename);
+ time_t rrd_first_r(
+ const char *filename,
+ int rraindex);
/* Transplanted from parsetime.h */
-typedef enum {
+ typedef enum {
ABSOLUTE_TIME,
- RELATIVE_TO_START_TIME,
+ RELATIVE_TO_START_TIME,
RELATIVE_TO_END_TIME
-} timetype;
+ } timetype;
#define TIME_OK NULL
-struct rrd_time_value {
- timetype type;
- long offset;
- struct tm tm;
-};
+ struct rrd_time_value {
+ timetype type;
+ long offset;
+ struct tm tm;
+ };
-char *parsetime(const char *spec, struct rrd_time_value *ptv);
+ char *parsetime(
+ const char *spec,
+ struct rrd_time_value *ptv);
/* END parsetime.h */
-struct rrd_context {
- int len;
- int errlen;
- char *lib_errstr;
- char *rrd_error;
-};
+ struct rrd_context {
+ char lib_errstr[256];
+ char rrd_error[4096];
+ };
/* returns the current per-thread rrd_context */
-struct rrd_context *rrd_get_context(void);
+ struct rrd_context *rrd_get_context(
+ void);
-int proc_start_end (struct rrd_time_value *, struct rrd_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);
+ 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);
+ 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 *);
+ int LockRRD(
+ int in_file);
-#endif /* _RRDLIB_H */
+#endif /* _RRDLIB_H */
#ifdef __cplusplus
}
projects / rrdtool.git / blobdiff