1 /*****************************************************************************
2 * RRDtool 1.2.15 Copyright by Tobi Oetiker, 1997-2006
3 *****************************************************************************
4 * rrd_tool.h Common Header File
5 *****************************************************************************/
14 #if defined(_WIN32) && !defined(__CYGWIN__) && !defined(__CYGWIN32__) && !defined(HAVE_CONFIG_H)
15 #include "../confignt/config.h"
22 #ifdef MUST_DISABLE_SIGFPE
26 #ifdef MUST_DISABLE_FPMASK
27 #include <floatingpoint.h>
38 # include <sys/param.h>
48 /* Sorry: don't know autoconf as well how to check the exist of
49 dirent.h ans sys/stat.h
54 # define NAMLEN(dirent) strlen((dirent)->d_name)
56 # define dirent direct
57 # define NAMLEN(dirent) (dirent)->d_namlen
59 # include <sys/ndir.h>
70 # include <sys/types.h>
74 # include <sys/stat.h>
82 # include <sys/time.h>
85 # include <sys/times.h>
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.
92 extern int getrusage(int, struct rusage *);
93 #endif /* __svr4__ && __sun__ */
98 #if defined(_WIN32) && !defined(__CYGWIN__) && !defined(__CYGWIN32__)
100 /* Win32 only includes */
102 #include <float.h> /* for _isnan */
103 #include <io.h> /* for chdir */
107 #define finite _finite
108 #define isinf(a) (_fpclass(a) == _FPCLASS_NINF || _fpclass(a) == _FPCLASS_PINF)
110 struct tm* localtime_r(const time_t *timep, struct tm* result);
111 char* ctime_r(const time_t *timep, char* result);
112 struct tm* gmtime_r(const time_t *timep, struct tm* result);
113 char *strtok_r(char *str, const char *sep, char **last);
117 /* unix-only includes */
119 int isnan(double value);
124 /* local include files -- need to be after the system ones */
126 #include "rrd_format.h"
129 #define max(a,b) ((a) > (b) ? (a) : (b))
133 #define min(a,b) ((a) < (b) ? (a) : (b))
136 #define DIM(x) (sizeof(x)/sizeof(x[0]))
138 /* rrd info interface */
139 enum info_type { RD_I_VAL=0,
144 typedef union infoval {
151 typedef struct info_t {
158 info_t *rrd_info(int, char **);
159 info_t *rrd_update_v(int, char **);
160 char * sprintf_alloc(char *, ...);
161 info_t *info_push(info_t *, char *, enum info_type, infoval);
163 /* HELPER FUNCTIONS */
165 int PngSize(FILE *, long *, long *);
167 int rrd_create_fn(char *file_name, rrd_t *rrd);
168 int rrd_fetch_fn(char *filename, enum cf_en cf_idx,
169 time_t *start,time_t *end,
171 unsigned long *ds_cnt,
175 void rrd_free(rrd_t *rrd);
176 void rrd_freemem(void *mem);
177 void rrd_init(rrd_t *rrd);
179 int rrd_open(const char *file_name, FILE **in_file, rrd_t *rrd, int rdwr);
180 int readfile(const char *file, char **buffer, int skipfirst);
182 #define RRD_READONLY 0
183 #define RRD_READWRITE 1
185 enum cf_en cf_conv(char *string);
186 enum dst_en dst_conv(char *string);
187 long ds_match(rrd_t *rrd,char *ds_nam);
188 double rrd_diff(char *a, char *b);
190 /* rrd_strerror is thread safe, but still it uses a global buffer
191 (but one per thread), thus subsequent calls within a single
192 thread overwrite the same buffer */
193 const char *rrd_strerror(int err);