1 /*****************************************************************************
2 * RRDtool 1.2.11 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__) && !defined(HAVE_CONFIG_H)
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 #ifdef __MINGW32__
104 #define localtime_r(a,b) localtime(a)
105 #define ctime_r(a,b) ctime(a)
106 #define gmtime_r(a,b) gmtime(a)
107 #define strtok_r(a,b,c) strtok(a,b)
108 #else
109 #define isnan _isnan
110 #define finite _finite
111 #define isinf(a) (_fpclass(a) == _FPCLASS_NINF || _fpclass(a) == _FPCLASS_PINF)
112 struct tm* localtime_r(const time_t *timep, struct tm* result);
113 char* ctime_r(const time_t *timep, char* result);
114 struct tm* gmtime_r(const time_t *timep, struct tm* result);
115 char *strtok_r(char *str, const char *sep, char **last);
116 #endif
118 #else
120 /* unix-only includes */
121 #ifndef isnan
122 int isnan(double value);
123 #endif
125 #endif
127 /* local include files -- need to be after the system ones */
128 #include "getopt.h"
129 #include "rrd_format.h"
131 #ifndef max
132 #define max(a,b) ((a) > (b) ? (a) : (b))
133 #endif
135 #ifndef min
136 #define min(a,b) ((a) < (b) ? (a) : (b))
137 #endif
139 #define DIM(x) (sizeof(x)/sizeof(x[0]))
141 /* rrd info interface */
142 enum info_type { RD_I_VAL=0,
143 RD_I_CNT,
144 RD_I_STR,
145 RD_I_INT };
147 typedef union infoval {
148 unsigned long u_cnt;
149 rrd_value_t u_val;
150 char *u_str;
151 int u_int;
152 } infoval;
154 typedef struct info_t {
155 char *key;
156 enum info_type type;
157 union infoval value;
158 struct info_t *next;
159 } info_t;
161 info_t *rrd_info(int, char **);
162 info_t *rrd_update_v(int, char **);
163 char * sprintf_alloc(char *, ...);
164 info_t *info_push(info_t *, char *, enum info_type, infoval);
166 /* HELPER FUNCTIONS */
168 int PngSize(FILE *, long *, long *);
170 int rrd_create_fn(char *file_name, rrd_t *rrd);
171 int rrd_fetch_fn(char *filename, enum cf_en cf_idx,
172 time_t *start,time_t *end,
173 unsigned long *step,
174 unsigned long *ds_cnt,
175 char ***ds_namv,
176 rrd_value_t **data);
178 void rrd_free(rrd_t *rrd);
179 void rrd_freemem(void *mem);
180 void rrd_init(rrd_t *rrd);
182 int rrd_open(const char *file_name, FILE **in_file, rrd_t *rrd, int rdwr);
183 int readfile(const char *file, char **buffer, int skipfirst);
185 #define RRD_READONLY 0
186 #define RRD_READWRITE 1
188 enum cf_en cf_conv(char *string);
189 enum dst_en dst_conv(char *string);
190 long ds_match(rrd_t *rrd,char *ds_nam);
191 double rrd_diff(char *a, char *b);
193 /* rrd_strerror is thread safe, but still it uses a global buffer
194 (but one per thread), thus subsequent calls within a single
195 thread overwrite the same buffer */
196 const char *rrd_strerror(int err);
198 #endif
200 #ifdef __cplusplus
201 }
202 #endif