d7a5e13bb2124b291563b44259379a189d83255d
1 /*****************************************************************************
2 * RRDtool 1.2rc6 Copyright by Tobi Oetiker, 1997-2005
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 #if defined(WIN32) && !defined(__CYGWIN__) && !defined(__CYGWIN32__)
15 #include "../confignt/config.h"
16 #else
17 #ifdef HAVE_CONFIG_H
18 #include <config.h>
19 #endif
20 #endif
22 #ifdef MUST_DISABLE_SIGFPE
23 #include <signal.h>
24 #endif
26 #ifdef MUST_DISABLE_FPMASK
27 #include <floatingpoint.h>
28 #endif
30 #include <stdio.h>
31 #include <stdlib.h>
32 #include <errno.h>
33 #include <string.h>
34 #include <time.h>
35 #include <ctype.h>
37 #if HAVE_SYS_PARAM_H
38 # include <sys/param.h>
39 #endif
41 #ifndef MAXPATH
42 # define MAXPATH 1024
43 #endif
45 #if HAVE_MATH_H
46 # include <math.h>
47 #endif
48 /* Sorry: don't know autoconf as well how to check the exist of
49 dirent.h ans sys/stat.h
50 */
52 #if HAVE_DIRENT_H
53 # include <dirent.h>
54 # define NAMLEN(dirent) strlen((dirent)->d_name)
55 #else
56 # define dirent direct
57 # define NAMLEN(dirent) (dirent)->d_namlen
58 # if HAVE_SYS_NDIR_H
59 # include <sys/ndir.h>
60 # endif
61 # if HAVE_SYS_DIR_H
62 # include <sys/dir.h>
63 # endif
64 # if HAVE_NDIR_H
65 # include <ndir.h>
66 # endif
67 #endif
69 #if HAVE_SYS_TYPES_H
70 # include <sys/types.h>
71 #endif
73 #if HAVE_SYS_STAT_H
74 # include <sys/stat.h>
75 #endif
78 #if HAVE_UNISTD_H
79 # include <unistd.h>
80 #endif
81 #if HAVE_SYS_TIME_H
82 # include <sys/time.h>
83 #endif
84 #if HAVE_SYS_TIMES_H
85 # include <sys/times.h>
86 #endif
87 #if HAVE_SYS_RESOURCE_H
88 # include <sys/resource.h>
89 #if (defined(__svr4__) && defined(__sun__))
90 /* Solaris headers (pre 2.6) don't have a getrusage prototype.
91 Use this instead. */
92 extern int getrusage(int, struct rusage *);
93 #endif /* __svr4__ && __sun__ */
94 #endif
96 #include "rrd.h"
98 #if defined(WIN32) && !defined(__CYGWIN__) && !defined(__CYGWIN32__)
100 /* Win32 only includes */
102 #include <float.h> /* for _isnan */
103 #define isnan _isnan
104 #define finite _finite
105 #define isinf(a) (_fpclass(a) == _FPCLASS_NINF || _fpclass(a) == _FPCLASS_PINF)
106 struct tm* localtime_r(const time_t *timep, struct tm* result);
107 char* ctime_r(const time_t *timep, char* result);
108 struct tm* gmtime_r(const time_t *timep, struct tm* result);
109 char *strtok_r(char *str, const char *sep, char **last);
111 #else
113 /* unix-only includes */
114 #ifndef isnan
115 int isnan(double value);
116 #endif
118 #endif
120 /* local include files -- need to be after the system ones */
121 #include "getopt.h"
122 #include "rrd_format.h"
124 #ifndef max
125 #define max(a,b) ((a) > (b) ? (a) : (b))
126 #endif
128 #ifndef min
129 #define min(a,b) ((a) < (b) ? (a) : (b))
130 #endif
132 #define DIM(x) (sizeof(x)/sizeof(x[0]))
134 /* rrd info interface */
135 enum info_type { RD_I_VAL=0,
136 RD_I_CNT,
137 RD_I_STR,
138 RD_I_INT };
140 typedef union infoval {
141 unsigned long u_cnt;
142 rrd_value_t u_val;
143 char *u_str;
144 int u_int;
145 } infoval;
147 typedef struct info_t {
148 char *key;
149 enum info_type type;
150 union infoval value;
151 struct info_t *next;
152 } info_t;
154 info_t *rrd_info(int, char **);
155 info_t *rrd_update_v(int, char **);
156 char * sprintf_alloc(char *, ...);
157 info_t *info_push(info_t *, char *, enum info_type, infoval);
159 /* HELPER FUNCTIONS */
161 int PngSize(FILE *, long *, long *);
163 int rrd_create_fn(char *file_name, rrd_t *rrd);
164 int rrd_fetch_fn(char *filename, enum cf_en cf_idx,
165 time_t *start,time_t *end,
166 unsigned long *step,
167 unsigned long *ds_cnt,
168 char ***ds_namv,
169 rrd_value_t **data);
171 void rrd_free(rrd_t *rrd);
172 void rrd_freemem(void *mem);
173 void rrd_init(rrd_t *rrd);
175 int rrd_open(const char *file_name, FILE **in_file, rrd_t *rrd, int rdwr);
176 int readfile(const char *file, char **buffer, int skipfirst);
178 #define RRD_READONLY 0
179 #define RRD_READWRITE 1
181 enum cf_en cf_conv(char *string);
182 enum dst_en dst_conv(char *string);
183 long ds_match(rrd_t *rrd,char *ds_nam);
184 double rrd_diff(char *a, char *b);
186 /* rrd_strerror is thread safe, but still it uses a global buffer
187 (but one per thread), thus subsequent calls within a single
188 thread overwrite the same buffer */
189 const char *rrd_strerror(int err);
191 #endif
193 #ifdef __cplusplus
194 }
195 #endif