diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asterisk/lock.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/asterisk/lock.h b/include/asterisk/lock.h index 516c4627f..3f261c6a3 100644 --- a/include/asterisk/lock.h +++ b/include/asterisk/lock.h @@ -261,6 +261,20 @@ int ast_find_lock_info(void *lock_addr, const char **filename, int *lineno, cons * used during deadlock avoidance, to preserve the original location where * a lock was originally acquired. */ +#define CHANNEL_DEADLOCK_AVOIDANCE(chan) \ + do { \ + const char *__filename, *__func, *__mutex_name; \ + int __lineno; \ + int __res = ast_find_lock_info(&chan->lock_dont_use, &__filename, &__lineno, &__func, &__mutex_name); \ + ast_channel_unlock(chan); \ + usleep(1); \ + if (__res < 0) { /* Shouldn't ever happen, but just in case... */ \ + ast_channel_lock(chan); \ + } else { \ + __ast_pthread_mutex_lock(__filename, __lineno, __func, __mutex_name, &chan->lock_dont_use); \ + } \ + } while (0) + #define DEADLOCK_AVOIDANCE(lock) \ do { \ const char *__filename, *__func, *__mutex_name; \ @@ -1405,6 +1419,11 @@ static inline int _ast_rwlock_trywrlock(ast_rwlock_t *t, const char *name, #else /* !DEBUG_THREADS */ +#define CHANNEL_DEADLOCK_AVOIDANCE(chan) \ + ast_channel_lock(chan); \ + usleep(1); \ + ast_channel_unlock(chan); + #define DEADLOCK_AVOIDANCE(lock) \ ast_mutex_lock(lock); \ usleep(1); \ |