| line |
true |
false |
branch |
|
82
|
0 |
2 |
if (dl->tv_nsec >= 1000000000L) { dl->tv_sec++; dl->tv_nsec -= 1000000000L; } |
|
90
|
2 |
1 |
if (rem->tv_nsec < 0) { rem->tv_sec--; rem->tv_nsec += 1000000000L; } |
|
99
|
0 |
81 |
if (len == 0) return -1; /* 0 is the uncommitted marker */ |
|
102
|
0 |
81 |
if (len > UINT32_MAX - LOG_ENTRY_HDR - 3U) return -1; |
|
109
|
4 |
77 |
if (t + entry_size > hdr->data_size) return -1; |
|
111
|
77 |
0 |
if (__atomic_compare_exchange_n(&hdr->tail, &t, t + entry_size, |
|
123
|
0 |
77 |
if (__atomic_load_n(&hdr->waiters, __ATOMIC_RELAXED) > 0) |
|
139
|
1 |
239 |
if (offset < trunc) return 0; /* truncated */ |
|
141
|
10 |
229 |
if (offset >= t) return 0; |
|
142
|
0 |
229 |
if (offset + LOG_ENTRY_HDR > h->hdr->data_size) return 0; |
|
147
|
0 |
229 |
if (len == 0) return 0; /* uncommitted */ |
|
149
|
0 |
229 |
if (offset + LOG_ENTRY_HDR + len > t) return 0; |
|
179
|
0 |
2 |
if (log_entry_count(h) != expected_count) return 1; |
|
180
|
0 |
2 |
if (timeout == 0) return 0; |
|
184
|
2 |
0 |
if (has_dl) log_make_deadline(timeout, &dl); |
|
191
|
2 |
0 |
if (cur == expected_count) { |
|
193
|
2 |
0 |
if (has_dl) { |
|
194
|
0 |
2 |
if (!log_remaining(&dl, &rem)) { |
|
204
|
1 |
1 |
if (log_entry_count(h) != expected_count) return 1; |
|
205
|
1 |
0 |
if (has_dl && !log_remaining(&dl, &rem)) { |
|
|
1 |
0 |
if (has_dl && !log_remaining(&dl, &rem)) { |
|
231
|
0 |
2 |
if (hdr->magic != LOG_MAGIC) return 0; |
|
232
|
0 |
2 |
if (hdr->version != LOG_VERSION) return 0; |
|
233
|
0 |
2 |
if (hdr->data_size == 0) return 0; |
|
234
|
0 |
2 |
if (hdr->data_size > UINT64_MAX - sizeof(LogHeader)) return 0; |
|
235
|
0 |
2 |
if (hdr->total_size != file_size) return 0; |
|
236
|
0 |
2 |
if (hdr->data_off != sizeof(LogHeader)) return 0; |
|
237
|
0 |
2 |
if (hdr->total_size != sizeof(LogHeader) + hdr->data_size) return 0; |
|
239
|
0 |
2 |
if (hdr->tail > hdr->data_size) return 0; |
|
240
|
0 |
2 |
if (hdr->truncation > hdr->data_size) return 0; |
|
247
|
0 |
14 |
if (!h) { munmap(base, ms); return NULL; } |
|
251
|
3 |
11 |
h->path = path ? strdup(path) : NULL; |
|
261
|
6 |
0 |
if (errbuf) errbuf[0] = '\0'; |
|
262
|
0 |
6 |
if (data_size == 0) { LOG_ERR("data_size must be > 0"); return NULL; } |
|
|
0 |
0 |
if (data_size == 0) { LOG_ERR("data_size must be > 0"); return NULL; } |
|
263
|
0 |
6 |
if (data_size > UINT64_MAX - sizeof(LogHeader)) { LOG_ERR("data_size too large"); return NULL; } |
|
|
0 |
0 |
if (data_size > UINT64_MAX - sizeof(LogHeader)) { LOG_ERR("data_size too large"); return NULL; } |
|
271
|
3 |
3 |
if (anonymous) { |
|
274
|
0 |
3 |
if (base == MAP_FAILED) { LOG_ERR("mmap: %s", strerror(errno)); return NULL; } |
|
|
0 |
0 |
if (base == MAP_FAILED) { LOG_ERR("mmap: %s", strerror(errno)); return NULL; } |
|
277
|
0 |
3 |
if (fd < 0) { LOG_ERR("open: %s", strerror(errno)); return NULL; } |
|
|
0 |
0 |
if (fd < 0) { LOG_ERR("open: %s", strerror(errno)); return NULL; } |
|
278
|
0 |
3 |
if (flock(fd, LOCK_EX) < 0) { LOG_ERR("flock: %s", strerror(errno)); close(fd); return NULL; } |
|
|
0 |
0 |
if (flock(fd, LOCK_EX) < 0) { LOG_ERR("flock: %s", strerror(errno)); close(fd); return NULL; } |
|
280
|
0 |
3 |
if (fstat(fd, &st) < 0) { |
|
281
|
0 |
0 |
LOG_ERR("fstat: %s", strerror(errno)); flock(fd, LOCK_UN); close(fd); return NULL; |
|
284
|
1 |
2 |
if (!is_new && (uint64_t)st.st_size < sizeof(LogHeader)) { |
|
|
0 |
1 |
if (!is_new && (uint64_t)st.st_size < sizeof(LogHeader)) { |
|
285
|
0 |
0 |
LOG_ERR("%s: file too small (%lld)", path, (long long)st.st_size); |
|
288
|
2 |
1 |
if (is_new && ftruncate(fd, (off_t)total) < 0) { |
|
|
0 |
2 |
if (is_new && ftruncate(fd, (off_t)total) < 0) { |
|
289
|
0 |
0 |
LOG_ERR("ftruncate: %s", strerror(errno)); flock(fd, LOCK_UN); close(fd); return NULL; |
|
291
|
1 |
2 |
map_size = is_new ? (size_t)total : (size_t)st.st_size; |
|
293
|
0 |
3 |
if (base == MAP_FAILED) { LOG_ERR("mmap: %s", strerror(errno)); flock(fd, LOCK_UN); close(fd); return NULL; } |
|
|
0 |
0 |
if (base == MAP_FAILED) { LOG_ERR("mmap: %s", strerror(errno)); flock(fd, LOCK_UN); close(fd); return NULL; } |
|
294
|
1 |
2 |
if (!is_new) { |
|
295
|
0 |
1 |
if (!log_validate_header((LogHeader *)base, (uint64_t)st.st_size)) { |
|
296
|
0 |
0 |
LOG_ERR("invalid log file"); munmap(base, map_size); flock(fd, LOCK_UN); close(fd); return NULL; |
|
303
|
2 |
3 |
if (fd >= 0) { flock(fd, LOCK_UN); close(fd); } |
|
308
|
7 |
0 |
if (errbuf) errbuf[0] = '\0'; |
|
309
|
0 |
7 |
if (data_size == 0) { LOG_ERR("data_size must be > 0"); return NULL; } |
|
|
0 |
0 |
if (data_size == 0) { LOG_ERR("data_size must be > 0"); return NULL; } |
|
310
|
0 |
7 |
if (data_size > UINT64_MAX - sizeof(LogHeader)) { LOG_ERR("data_size too large"); return NULL; } |
|
|
0 |
0 |
if (data_size > UINT64_MAX - sizeof(LogHeader)) { LOG_ERR("data_size too large"); return NULL; } |
|
312
|
7 |
0 |
int fd = memfd_create(name ? name : "log", MFD_CLOEXEC | MFD_ALLOW_SEALING); |
|
313
|
0 |
7 |
if (fd < 0) { LOG_ERR("memfd_create: %s", strerror(errno)); return NULL; } |
|
|
0 |
0 |
if (fd < 0) { LOG_ERR("memfd_create: %s", strerror(errno)); return NULL; } |
|
314
|
0 |
7 |
if (ftruncate(fd, (off_t)total) < 0) { LOG_ERR("ftruncate: %s", strerror(errno)); close(fd); return NULL; } |
|
|
0 |
0 |
if (ftruncate(fd, (off_t)total) < 0) { LOG_ERR("ftruncate: %s", strerror(errno)); close(fd); return NULL; } |
|
317
|
0 |
7 |
if (base == MAP_FAILED) { LOG_ERR("mmap: %s", strerror(errno)); close(fd); return NULL; } |
|
|
0 |
0 |
if (base == MAP_FAILED) { LOG_ERR("mmap: %s", strerror(errno)); close(fd); return NULL; } |
|
323
|
1 |
0 |
if (errbuf) errbuf[0] = '\0'; |
|
325
|
0 |
1 |
if (fstat(fd, &st) < 0) { LOG_ERR("fstat: %s", strerror(errno)); return NULL; } |
|
|
0 |
0 |
if (fstat(fd, &st) < 0) { LOG_ERR("fstat: %s", strerror(errno)); return NULL; } |
|
326
|
0 |
1 |
if ((uint64_t)st.st_size < sizeof(LogHeader)) { LOG_ERR("too small"); return NULL; } |
|
|
0 |
0 |
if ((uint64_t)st.st_size < sizeof(LogHeader)) { LOG_ERR("too small"); return NULL; } |
|
329
|
0 |
1 |
if (base == MAP_FAILED) { LOG_ERR("mmap: %s", strerror(errno)); return NULL; } |
|
|
0 |
0 |
if (base == MAP_FAILED) { LOG_ERR("mmap: %s", strerror(errno)); return NULL; } |
|
330
|
0 |
1 |
if (!log_validate_header((LogHeader *)base, (uint64_t)st.st_size)) { |
|
331
|
0 |
0 |
LOG_ERR("invalid log"); munmap(base, ms); return NULL; |
|
334
|
0 |
1 |
if (myfd < 0) { LOG_ERR("fcntl: %s", strerror(errno)); munmap(base, ms); return NULL; } |
|
|
0 |
0 |
if (myfd < 0) { LOG_ERR("fcntl: %s", strerror(errno)); munmap(base, ms); return NULL; } |
|
339
|
0 |
14 |
if (!h) return; |
|
340
|
2 |
12 |
if (h->notify_fd >= 0) close(h->notify_fd); |
|
341
|
8 |
6 |
if (h->backing_fd >= 0) close(h->backing_fd); |
|
342
|
14 |
0 |
if (h->hdr) munmap(h->hdr, h->mmap_size); |
|
353
|
0 |
7 |
if (__atomic_load_n(&h->hdr->waiters, __ATOMIC_RELAXED) > 0) |
|
363
|
1 |
3 |
if (offset <= cur) return; /* can only advance, not retreat */ |
|
364
|
3 |
0 |
if (__atomic_compare_exchange_n(&h->hdr->truncation, &cur, offset, |
|
375
|
0 |
2 |
if (h->notify_fd >= 0) return h->notify_fd; |
|
377
|
0 |
2 |
if (efd < 0) return -1; |
|
381
|
0 |
2 |
if (h->notify_fd < 0) return 0; |
|
385
|
0 |
2 |
if (h->notify_fd < 0) return -1; |
|
387
|
0 |
2 |
if (read(h->notify_fd, &v, sizeof(v)) != sizeof(v)) return -1; |