summaryrefslogtreecommitdiffstats
path: root/src/common.h
blob: 667fe9d76c4d681a44eca35336ebe97ec7e7b692 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
#ifndef NETDATA_COMMON_H
#define NETDATA_COMMON_H 1

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

// ----------------------------------------------------------------------------
// system include files for all netdata C programs

/* select the memory allocator, based on autoconf findings */
#if defined(ENABLE_JEMALLOC)

#if defined(HAVE_JEMALLOC_JEMALLOC_H)
#include <jemalloc/jemalloc.h>
#else
#include <malloc.h>
#endif

#elif defined(ENABLE_TCMALLOC)

#include <google/tcmalloc.h>

#else /* !defined(ENABLE_JEMALLOC) && !defined(ENABLE_TCMALLOC) */

#if !(defined(__FreeBSD__) || defined(__APPLE__))
#include <malloc.h>
#endif /* __FreeBSD__ || __APPLE__ */

#endif

#include <pthread.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <stddef.h>
#include <ctype.h>
#include <string.h>
#include <strings.h>
#include <arpa/inet.h>
#include <netinet/tcp.h>
#include <sys/ioctl.h>

#ifdef HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif

#ifdef HAVE_RESOLV_H
#include <resolv.h>
#endif

#include <dirent.h>
#include <fcntl.h>
#include <getopt.h>
#include <grp.h>
#include <pwd.h>
#include <locale.h>

#ifdef HAVE_NETDB_H
#include <netdb.h>
#endif

#include <net/if.h>

#include <poll.h>
#include <signal.h>
#include <syslog.h>
#include <sys/mman.h>

#ifdef HAVE_SYS_PRCTL_H
#include <sys/prctl.h>
#endif

#include <sys/resource.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/statvfs.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/un.h>
#include <time.h>
#include <unistd.h>
#include <uuid/uuid.h>

// #1408
#ifdef MAJOR_IN_MKDEV
#include <sys/mkdev.h>
#endif
#ifdef MAJOR_IN_SYSMACROS
#include <sys/sysmacros.h>
#endif

/*
#include <mntent.h>
*/

#ifdef STORAGE_WITH_MATH
#include <math.h>
#endif

#if defined(HAVE_INTTYPES_H)
#include <inttypes.h>
#elif defined(HAVE_STDINT_H)
#include <stdint.h>
#endif

#ifdef NETDATA_WITH_ZLIB
#include <zlib.h>
#endif

#ifdef HAVE_CAPABILITY
#include <sys/capability.h>
#endif

// ----------------------------------------------------------------------------
// netdata common definitions

#if (SIZEOF_VOID_P == 8)
#define ENVIRONMENT64
#elif (SIZEOF_VOID_P == 4)
#define ENVIRONMENT32
#else
#error "Cannot detect if this is a 32 or 64 bit CPU"
#endif

#ifdef __GNUC__
#define GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
#endif // __GNUC__

#ifdef HAVE_FUNC_ATTRIBUTE_RETURNS_NONNULL
#define NEVERNULL __attribute__((returns_nonnull))
#else
#define NEVERNULL
#endif

#ifdef HAVE_FUNC_ATTRIBUTE_MALLOC
#define MALLOCLIKE __attribute__((malloc))
#else
#define MALLOCLIKE
#endif

#ifdef HAVE_FUNC_ATTRIBUTE_FORMAT
#define PRINTFLIKE(f, a) __attribute__ ((format(__printf__, f, a)))
#else
#define PRINTFLIKE(f, a)
#endif

#ifdef HAVE_FUNC_ATTRIBUTE_NORETURN
#define NORETURN __attribute__ ((noreturn))
#else
#define NORETURN
#endif

#ifdef HAVE_FUNC_ATTRIBUTE_WARN_UNUSED_RESULT
#define WARNUNUSED __attribute__ ((warn_unused_result))
#else
#define WARNUNUSED
#endif

#ifdef abs
#undef abs
#endif
#define abs(x) ((x < 0)? -x : x)

#define GUID_LEN 36

// ----------------------------------------------------------------------------
// netdata include files

#include "clocks.h"
#include "log.h"
#include "locks.h"
#include "simple_pattern.h"
#include "avl.h"
#include "global_statistics.h"
#include "storage_number.h"
#include "web_buffer.h"
#include "web_buffer_svg.h"
#include "url.h"
#include "popen.h"

#include "procfile.h"
#include "appconfig.h"
#include "dictionary.h"
#include "proc_self_mountinfo.h"
#include "plugin_checks.h"
#include "plugin_idlejitter.h"
#include "plugin_nfacct.h"

#if defined(__FreeBSD__)
#include <pthread_np.h>
#include "plugin_freebsd.h"
#define NETDATA_OS_TYPE "freebsd"
#elif defined(__APPLE__)
#include "plugin_macos.h"
#define NETDATA_OS_TYPE "macos"
#else
#include "plugin_proc.h"
#include "plugin_proc_diskspace.h"
#define NETDATA_OS_TYPE "linux"
#endif /* __FreeBSD__, __APPLE__*/

typedef enum rrdcalc_status {
    RRDCALC_STATUS_REMOVED       = -2,
    RRDCALC_STATUS_UNDEFINED     = -1,
    RRDCALC_STATUS_UNINITIALIZED =  0,
    RRDCALC_STATUS_CLEAR         =  1,
    RRDCALC_STATUS_RAISED        =  2,
    RRDCALC_STATUS_WARNING       =  3,
    RRDCALC_STATUS_CRITICAL      =  4
} RRDCALC_STATUS;

#include "eval.h"
#include "health.h"

#include "statistical.h"
#include "socket.h"
#include "rrd.h"
#include "plugin_tc.h"
#include "plugins_d.h"
#include "statsd.h"
#include "rrd2json.h"
#include "rrd2json_api_old.h"
#include "web_client.h"
#include "web_server.h"
#include "registry.h"
#include "signals.h"
#include "daemon.h"
#include "main.h"
#include "unit_test.h"
#include "ipc.h"
#include "backends.h"
#include "backend_prometheus.h"
#include "inlined.h"
#include "adaptive_resortable_list.h"
#include "rrdpush.h"
#include "web_api_v1.h"
#include "web_api_old.h"

extern char *netdata_configured_hostname;
extern char *netdata_configured_config_dir;
extern char *netdata_configured_log_dir;
extern char *netdata_configured_plugins_dir_base;
extern char *netdata_configured_plugins_dir;
extern char *netdata_configured_web_dir;
extern char *netdata_configured_cache_dir;
extern char *netdata_configured_varlib_dir;
extern char *netdata_configured_home_dir;
extern char *netdata_configured_host_prefix;
extern char *netdata_configured_timezone;

extern void netdata_fix_chart_id(char *s);
extern void netdata_fix_chart_name(char *s);

extern void strreverse(char* begin, char* end);
extern char *mystrsep(char **ptr, char *s);
extern char *trim(char *s); // remove leading and trailing spaces; may return NULL
extern char *trim_all(char *buffer); // like trim(), but also remove duplicate spaces inside the string; may return NULL

extern int  vsnprintfz(char *dst, size_t n, const char *fmt, va_list args);
extern int  snprintfz(char *dst, size_t n, const char *fmt, ...) PRINTFLIKE(3, 4);

// memory allocation functions that handle failures
#ifdef NETDATA_LOG_ALLOCATIONS
#define strdupz(s) strdupz_int(__FILE__, __FUNCTION__, __LINE__, s)
#define callocz(nmemb, size) callocz_int(__FILE__, __FUNCTION__, __LINE__, nmemb, size)
#define mallocz(size) mallocz_int(__FILE__, __FUNCTION__, __LINE__, size)
#define reallocz(ptr, size) reallocz_int(__FILE__, __FUNCTION__, __LINE__, ptr, size)
#define freez(ptr) freez_int(__FILE__, __FUNCTION__, __LINE__, ptr)

extern char *strdupz_int(const char *file, const char *function, const unsigned long line, const char *s);
extern void *callocz_int(const char *file, const char *function, const unsigned long line, size_t nmemb, size_t size);
extern void *mallocz_int(const char *file, const char *function, const unsigned long line, size_t size);
extern void *reallocz_int(const char *file, const char *function, const unsigned long line, void *ptr, size_t size);
extern void freez_int(const char *file, const char *function, const unsigned long line, void *ptr);
#else
extern char *strdupz(const char *s) MALLOCLIKE NEVERNULL;
extern void *callocz(size_t nmemb, size_t size) MALLOCLIKE NEVERNULL;
extern void *mallocz(size_t size) MALLOCLIKE NEVERNULL;
extern void *reallocz(void *ptr, size_t size) MALLOCLIKE NEVERNULL;
extern void freez(void *ptr);
#endif

extern void json_escape_string(char *dst, const char *src, size_t size);
extern void json_fix_string(char *s);

extern void *mymmap(const char *filename, size_t size, int flags, int ksm);
extern int memory_file_save(const char *filename, void *mem, size_t size);

extern int fd_is_valid(int fd);

extern int enable_ksm;

extern pid_t gettid(void);

extern int sleep_usec(usec_t usec);

extern char *fgets_trim_len(char *buf, size_t buf_size, FILE *fp, size_t *len);

extern int processors;
extern long get_system_cpus(void);

extern pid_t pid_max;
extern pid_t get_system_pid_max(void);

/* Number of ticks per second */
extern unsigned int hz;
extern void get_system_HZ(void);

extern int recursively_delete_dir(const char *path, const char *reason);

extern volatile sig_atomic_t netdata_exit;
extern const char *os_type;

extern const char *program_version;

/* fix for alpine linux */
#ifndef RUSAGE_THREAD
#ifdef RUSAGE_CHILDREN
#define RUSAGE_THREAD RUSAGE_CHILDREN
#endif
#endif

#define BITS_IN_A_KILOBIT 1000

#endif /* NETDATA_COMMON_H */