summaryrefslogtreecommitdiffstats
path: root/src/locks.h
blob: 76533f636ecb48a6a3a88fc5817b4648243bad43 (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
#ifndef NETDATA_LOCKS_H
#define NETDATA_LOCKS_H

// ----------------------------------------------------------------------------
// mutex

typedef pthread_mutex_t netdata_mutex_t;

#define NETDATA_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER

static inline int __netdata_mutex_init(netdata_mutex_t *mutex) {
    int ret = pthread_mutex_init(mutex, NULL);
    if(unlikely(ret != 0))
        error("MUTEX_LOCK: failed to initialize (code %d).", ret);
    return ret;
}

static inline int __netdata_mutex_lock(netdata_mutex_t *mutex) {
    int ret = pthread_mutex_lock(mutex);
    if(unlikely(ret != 0))
        error("MUTEX_LOCK: failed to get lock (code %d)", ret);
    return ret;
}

static inline int __netdata_mutex_trylock(netdata_mutex_t *mutex) {
    int ret = pthread_mutex_trylock(mutex);
    return ret;
}

static inline int __netdata_mutex_unlock(netdata_mutex_t *mutex) {
    int ret = pthread_mutex_unlock(mutex);
    if(unlikely(ret != 0))
        error("MUTEX_LOCK: failed to unlock (code %d).", ret);
    return ret;
}

#ifdef NETDATA_INTERNAL_CHECKS

static inline int netdata_mutex_init_debug( const char *file, const char *function, const unsigned long line, netdata_mutex_t *mutex) {
    usec_t start = 0;

    if(unlikely(debug_flags & D_LOCKS)) {
        start = now_boottime_usec();
        debug(D_LOCKS, "MUTEX_LOCK: netdata_mutex_init(0x%p) from %lu@%s, %s()", mutex, line, file, function);
    }

    int ret = __netdata_mutex_init(mutex);

    debug(D_LOCKS, "MUTEX_LOCK: netdata_mutex_init(0x%p) = %d in %llu usec, from %lu@%s, %s()", mutex, ret, now_boottime_usec() - start, line, file, function);

    return ret;
}

static inline int netdata_mutex_lock_debug( const char *file, const char *function, const unsigned long line, netdata_mutex_t *mutex) {
    usec_t start = 0;

    if(unlikely(debug_flags & D_LOCKS)) {
        start = now_boottime_usec();
        debug(D_LOCKS, "MUTEX_LOCK: netdata_mutex_lock(0x%p) from %lu@%s, %s()", mutex, line, file, function);
    }

    int ret = __netdata_mutex_lock(mutex);

    debug(D_LOCKS, "MUTEX_LOCK: netdata_mutex_lock(0x%p) = %d in %llu usec, from %lu@%s, %s()", mutex, ret, now_boottime_usec() - start, line, file, function);

    return ret;
}

static inline int netdata_mutex_trylock_debug( const char *file, const char *function, const unsigned long line, netdata_mutex_t *mutex) {
    usec_t start = 0;

    if(unlikely(debug_flags & D_LOCKS)) {
        start = now_boottime_usec();
        debug(D_LOCKS, "MUTEX_LOCK: netdata_mutex_trylock(0x%p) from %lu@%s, %s()", mutex, line, file, function);
    }

    int ret = __netdata_mutex_trylock(mutex);

    debug(D_LOCKS, "MUTEX_LOCK: netdata_mutex_trylock(0x%p) = %d in %llu usec, from %lu@%s, %s()", mutex, ret, now_boottime_usec() - start, line, file, function);

    return ret;
}

static inline int netdata_mutex_unlock_debug( const char *file, const char *function, const unsigned long line, netdata_mutex_t *mutex) {
    usec_t start = 0;

    if(unlikely(debug_flags & D_LOCKS)) {
        start = now_boottime_usec();
        debug(D_LOCKS, "MUTEX_LOCK: netdata_mutex_unlock(0x%p) from %lu@%s, %s()", mutex, line, file, function);
    }

    int ret = __netdata_mutex_unlock(mutex);

    debug(D_LOCKS, "MUTEX_LOCK: netdata_mutex_unlock(0x%p) = %d in %llu usec, from %lu@%s, %s()", mutex, ret, now_boottime_usec() - start, line, file, function);

    return ret;
}

#define netdata_mutex_init(mutex)    netdata_mutex_init_debug(__FILE__, __FUNCTION__, __LINE__, mutex)
#define netdata_mutex_lock(mutex)    netdata_mutex_lock_debug(__FILE__, __FUNCTION__, __LINE__, mutex)
#define netdata_mutex_trylock(mutex) netdata_mutex_trylock_debug(__FILE__, __FUNCTION__, __LINE__, mutex)
#define netdata_mutex_unlock(mutex)  netdata_mutex_unlock_debug(__FILE__, __FUNCTION__, __LINE__, mutex)

#else // !NETDATA_INTERNAL_CHECKS

#define netdata_mutex_init(mutex)    __netdata_mutex_init(mutex)
#define netdata_mutex_lock(mutex)    __netdata_mutex_lock(mutex)
#define netdata_mutex_trylock(mutex) __netdata_mutex_trylock(mutex)
#define netdata_mutex_unlock(mutex)  __netdata_mutex_unlock(mutex)

#endif // NETDATA_INTERNAL_CHECKS


// ----------------------------------------------------------------------------
// r/w lock

typedef pthread_rwlock_t netdata_rwlock_t;

#define NETDATA_RWLOCK_INITIALIZER PTHREAD_RWLOCK_INITIALIZER

static inline int __netdata_rwlock_destroy(netdata_rwlock_t *rwlock) {
    int ret = pthread_rwlock_destroy(rwlock);
    if(unlikely(ret != 0))
        error("RW_LOCK: failed to destroy lock (code %d)", ret);
    return ret;
}

static inline int __netdata_rwlock_init(netdata_rwlock_t *rwlock) {
    int ret = pthread_rwlock_init(rwlock, NULL);
    if(unlikely(ret != 0))
        error("RW_LOCK: failed to initialize lock (code %d)", ret);
    return ret;
}

static inline int __netdata_rwlock_rdlock(netdata_rwlock_t *rwlock) {
    int ret = pthread_rwlock_rdlock(rwlock);
    if(unlikely(ret != 0))
        error("RW_LOCK: failed to obtain read lock (code %d)", ret);
    return ret;
}

static inline int __netdata_rwlock_wrlock(netdata_rwlock_t *rwlock) {
    int ret = pthread_rwlock_wrlock(rwlock);
    if(unlikely(ret != 0))
        error("RW_LOCK: failed to obtain write lock (code %d)", ret);
    return ret;
}

static inline int __netdata_rwlock_unlock(netdata_rwlock_t *rwlock) {
    int ret = pthread_rwlock_unlock(rwlock);
    if(unlikely(ret != 0))
        error("RW_LOCK: failed to release lock (code %d)", ret);
    return ret;
}

static inline int __netdata_rwlock_tryrdlock(netdata_rwlock_t *rwlock) {
    int ret = pthread_rwlock_tryrdlock(rwlock);
    return ret;
}

static inline int __netdata_rwlock_trywrlock(netdata_rwlock_t *rwlock) {
    int ret = pthread_rwlock_trywrlock(rwlock);
    return ret;
}


#ifdef NETDATA_INTERNAL_CHECKS

static inline int netdata_rwlock_destroy_debug( const char *file, const char *function, const unsigned long line, netdata_rwlock_t *rwlock) {
    usec_t start = 0;

    if(unlikely(debug_flags & D_LOCKS)) {
        start = now_boottime_usec();
        debug(D_LOCKS, "RW_LOCK: netdata_rwlock_destroy(0x%p) from %lu@%s, %s()", rwlock, line, file, function);
    }

    int ret = __netdata_rwlock_destroy(rwlock);

    debug(D_LOCKS, "RW_LOCK: netdata_rwlock_destroy(0x%p) = %d in %llu usec, from %lu@%s, %s()", rwlock, ret, now_boottime_usec() - start, line, file, function);

    return ret;
}

static inline int netdata_rwlock_init_debug( const char *file, const char *function, const unsigned long line, netdata_rwlock_t *rwlock) {
    usec_t start = 0;

    if(unlikely(debug_flags & D_LOCKS)) {
        start = now_boottime_usec();
        debug(D_LOCKS, "RW_LOCK: netdata_rwlock_init(0x%p) from %lu@%s, %s()", rwlock, line, file, function);
    }

    int ret = __netdata_rwlock_init(rwlock);

    debug(D_LOCKS, "RW_LOCK: netdata_rwlock_init(0x%p) = %d in %llu usec, from %lu@%s, %s()", rwlock, ret, now_boottime_usec() - start, line, file, function);

    return ret;
}

static inline int netdata_rwlock_rdlock_debug( const char *file, const char *function, const unsigned long line, netdata_rwlock_t *rwlock) {
    usec_t start = 0;

    if(unlikely(debug_flags & D_LOCKS)) {
        start = now_boottime_usec();
        debug(D_LOCKS, "RW_LOCK: netdata_rwlock_rdlock(0x%p) from %lu@%s, %s()", rwlock, line, file, function);
    }

    int ret = __netdata_rwlock_rdlock(rwlock);

    debug(D_LOCKS, "RW_LOCK: netdata_rwlock_rdlock(0x%p) = %d in %llu usec, from %lu@%s, %s()", rwlock, ret, now_boottime_usec() - start, line, file, function);

    return ret;
}

static inline int netdata_rwlock_wrlock_debug( const char *file, const char *function, const unsigned long line, netdata_rwlock_t *rwlock) {
    usec_t start = 0;

    if(unlikely(debug_flags & D_LOCKS)) {
        start = now_boottime_usec();
        debug(D_LOCKS, "RW_LOCK: netdata_rwlock_wrlock(0x%p) from %lu@%s, %s()", rwlock, line, file, function);
    }

    int ret = __netdata_rwlock_wrlock(rwlock);

    debug(D_LOCKS, "RW_LOCK: netdata_rwlock_wrlock(0x%p) = %d in %llu usec, from %lu@%s, %s()", rwlock, ret, now_boottime_usec() - start, line, file, function);

    return ret;
}

static inline int netdata_rwlock_unlock_debug( const char *file, const char *function, const unsigned long line, netdata_rwlock_t *rwlock) {
    usec_t start = 0;

    if(unlikely(debug_flags & D_LOCKS)) {
        start = now_boottime_usec();
        debug(D_LOCKS, "RW_LOCK: netdata_rwlock_unlock(0x%p) from %lu@%s, %s()", rwlock, line, file, function);
    }

    int ret = __netdata_rwlock_unlock(rwlock);

    debug(D_LOCKS, "RW_LOCK: netdata_rwlock_unlock(0x%p) = %d in %llu usec, from %lu@%s, %s()", rwlock, ret, now_boottime_usec() - start, line, file, function);

    return ret;
}

static inline int netdata_rwlock_tryrdlock_debug( const char *file, const char *function, const unsigned long line, netdata_rwlock_t *rwlock) {
    usec_t start = 0;

    if(unlikely(debug_flags & D_LOCKS)) {
        start = now_boottime_usec();
        debug(D_LOCKS, "RW_LOCK: netdata_rwlock_tryrdlock(0x%p) from %lu@%s, %s()", rwlock, line, file, function);
    }

    int ret = __netdata_rwlock_tryrdlock(rwlock);

    debug(D_LOCKS, "RW_LOCK: netdata_rwlock_tryrdlock(0x%p) = %d in %llu usec, from %lu@%s, %s()", rwlock, ret, now_boottime_usec() - start, line, file, function);

    return ret;
}

static inline int netdata_rwlock_trywrlock_debug( const char *file, const char *function, const unsigned long line, netdata_rwlock_t *rwlock) {
    usec_t start = 0;

    if(unlikely(debug_flags & D_LOCKS)) {
        start = now_boottime_usec();
        debug(D_LOCKS, "RW_LOCK: netdata_rwlock_trywrlock(0x%p) from %lu@%s, %s()", rwlock, line, file, function);
    }

    int ret = __netdata_rwlock_trywrlock(rwlock);

    debug(D_LOCKS, "RW_LOCK: netdata_rwlock_trywrlock(0x%p) = %d in %llu usec, from %lu@%s, %s()", rwlock, ret, now_boottime_usec() - start, line, file, function);

    return ret;
}

#define netdata_rwlock_destroy(rwlock)   netdata_rwlock_destroy_debug(__FILE__, __FUNCTION__, __LINE__, rwlock)
#define netdata_rwlock_init(rwlock)      netdata_rwlock_init_debug(__FILE__, __FUNCTION__, __LINE__, rwlock)
#define netdata_rwlock_rdlock(rwlock)    netdata_rwlock_rdlock_debug(__FILE__, __FUNCTION__, __LINE__, rwlock)
#define netdata_rwlock_wrlock(rwlock)    netdata_rwlock_wrlock_debug(__FILE__, __FUNCTION__, __LINE__, rwlock)
#define netdata_rwlock_unlock(rwlock)    netdata_rwlock_unlock_debug(__FILE__, __FUNCTION__, __LINE__, rwlock)
#define netdata_rwlock_tryrdlock(rwlock) netdata_rwlock_tryrdlock_debug(__FILE__, __FUNCTION__, __LINE__, rwlock)
#define netdata_rwlock_trywrlock(rwlock) netdata_rwlock_trywrlock_debug(__FILE__, __FUNCTION__, __LINE__, rwlock)

#else // !NETDATA_INTERNAL_CHECKS

#define netdata_rwlock_destroy(rwlock)    __netdata_rwlock_destroy(rwlock)
#define netdata_rwlock_init(rwlock)       __netdata_rwlock_init(rwlock)
#define netdata_rwlock_rdlock(rwlock)     __netdata_rwlock_rdlock(rwlock)
#define netdata_rwlock_wrlock(rwlock)     __netdata_rwlock_wrlock(rwlock)
#define netdata_rwlock_unlock(rwlock)     __netdata_rwlock_unlock(rwlock)
#define netdata_rwlock_tryrdlock(rwlock)  __netdata_rwlock_tryrdlock(rwlock)
#define netdata_rwlock_trywrlock(rwlock)  __netdata_rwlock_trywrlock(rwlock)

#endif // NETDATA_INTERNAL_CHECKS

#endif //NETDATA_LOCKS_H