ebea6b0fc138d2c66553e93bd470d56c9e06e521
1 /*****************************************************************************
2 * RRDtool 1.2.29 Copyright by Tobi Oetiker, 1997-2008
3 *****************************************************************************
4 * rrd_tool.h Common Header File
5 *****************************************************************************/
6 #ifdef __cplusplus
7 extern "C" {
8 #endif
11 #ifndef _RRD_TOOL_H
12 #define _RRD_TOOL_H
14 #ifdef HAVE_CONFIG_H
15 #include "../rrd_config.h"
16 #elif defined(_WIN32) && !defined(__CYGWIN__) && !defined(__CYGWIN32__)
17 #include "../win32/config.h"
18 #endif
20 #ifdef MUST_DISABLE_SIGFPE
21 #include <signal.h>
22 #endif
24 #ifdef MUST_DISABLE_FPMASK
25 #include <floatingpoint.h>
26 #endif
28 #include <stdio.h>
29 #include <stdlib.h>
30 #include <errno.h>
31 #include <string.h>
32 #include <ctype.h>
34 #if HAVE_SYS_PARAM_H
35 # include <sys/param.h>
36 #endif
38 #ifndef MAXPATH
39 # define MAXPATH 1024
40 #endif
42 #if HAVE_MATH_H
43 # include <math.h>
44 #endif
45 /* Sorry: don't know autoconf as well how to check the exist of
46 dirent.h ans sys/stat.h
47 */
49 #if HAVE_DIRENT_H
50 # include <dirent.h>
51 # define NAMLEN(dirent) strlen((dirent)->d_name)
52 #else
53 # define dirent direct
54 # define NAMLEN(dirent) (dirent)->d_namlen
55 # if HAVE_SYS_NDIR_H
56 # include <sys/ndir.h>
57 # endif
58 # if HAVE_SYS_DIR_H
59 # include <sys/dir.h>
60 # endif
61 # if HAVE_NDIR_H
62 # include <ndir.h>
63 # endif
64 #endif
66 #if HAVE_SYS_TYPES_H
67 # include <sys/types.h>
68 #endif
70 #if HAVE_SYS_STAT_H
71 # include <sys/stat.h>
72 #endif
74 #if HAVE_STRINGS_H
75 # include <strings.h>
76 #endif
78 #include "rrd.h"
80 #if defined(_WIN32) && !defined(__CYGWIN__) && !defined(__CYGWIN32__)
82 /* Win32 only includes */
84 #include <float.h> /* for _isnan */
85 #include <io.h> /* for chdir */
86 #include <process.h> /* for getpid */
88 #define random rand
89 #define srandom srand
91 struct tm* localtime_r(const time_t *timep, struct tm* result);
92 char* ctime_r(const time_t *timep, char* result);
93 struct tm* gmtime_r(const time_t *timep, struct tm* result);
94 char *strtok_r(char *str, const char *sep, char **last);
96 #else
98 /* unix-only includes */
99 #if !defined isnan && !defined HAVE_ISNAN
100 int isnan(double value);
101 #endif
103 #endif
105 /* local include files -- need to be after the system ones */
106 #include "rrd_getopt.h"
107 #include "rrd_format.h"
109 #ifndef max
110 #define max(a,b) ((a) > (b) ? (a) : (b))
111 #endif
113 #ifndef min
114 #define min(a,b) ((a) < (b) ? (a) : (b))
115 #endif
117 #define DIM(x) (sizeof(x)/sizeof(x[0]))
119 /* rrd info interface */
120 enum info_type { RD_I_VAL=0,
121 RD_I_CNT,
122 RD_I_STR,
123 RD_I_INT };
125 typedef union infoval {
126 unsigned long u_cnt;
127 rrd_value_t u_val;
128 char *u_str;
129 int u_int;
130 } infoval;
132 typedef struct info_t {
133 char *key;
134 enum info_type type;
135 union infoval value;
136 struct info_t *next;
137 } info_t;
139 info_t *rrd_info(int, char **);
140 int rrd_lastupdate(int argc, char **argv, time_t *last_update,
141 unsigned long *ds_cnt, char ***ds_namv, char ***last_ds);
142 info_t *rrd_update_v(int, char **);
143 char * sprintf_alloc(char *, ...);
144 info_t *info_push(info_t *, char *, enum info_type, infoval);
146 /* HELPER FUNCTIONS */
148 int PngSize(FILE *, long *, long *);
150 int rrd_create_fn(const char *file_name, rrd_t *rrd);
151 int rrd_fetch_fn(const char *filename, enum cf_en cf_idx,
152 time_t *start,time_t *end,
153 unsigned long *step,
154 unsigned long *ds_cnt,
155 char ***ds_namv,
156 rrd_value_t **data);
158 void rrd_free(rrd_t *rrd);
159 void rrd_freemem(void *mem);
160 void rrd_init(rrd_t *rrd);
162 int rrd_open(const char *file_name, FILE **in_file, rrd_t *rrd, int rdwr);
163 int readfile(const char *file, char **buffer, int skipfirst);
165 #define RRD_READONLY 0
166 #define RRD_READWRITE 1
168 enum cf_en cf_conv(const char *string);
169 enum dst_en dst_conv(char *string);
170 long ds_match(rrd_t *rrd,char *ds_nam);
171 double rrd_diff(char *a, char *b);
173 /* rrd_strerror is thread safe, but still it uses a global buffer
174 (but one per thread), thus subsequent calls within a single
175 thread overwrite the same buffer */
176 const char *rrd_strerror(int err);
178 #endif
180 #ifdef __cplusplus
181 }
182 #endif