diff options
Diffstat (limited to 'include/asterisk/lock.h')
-rw-r--r-- | include/asterisk/lock.h | 55 |
1 files changed, 43 insertions, 12 deletions
diff --git a/include/asterisk/lock.h b/include/asterisk/lock.h index 5c42d1eb2..711edcdc2 100644 --- a/include/asterisk/lock.h +++ b/include/asterisk/lock.h @@ -60,6 +60,7 @@ #endif #include "asterisk/logger.h" +#include "asterisk/compiler.h" #define AST_PTHREADT_NULL (pthread_t) -1 #define AST_PTHREADT_STOP (pthread_t) -2 @@ -339,12 +340,20 @@ int ast_find_lock_info(void *lock_addr, char *filename, size_t filename_size, in char __filename[80], __func[80], __mutex_name[80]; \ int __lineno; \ int __res = ast_find_lock_info(ao2_object_get_lockaddr(chan), __filename, sizeof(__filename), &__lineno, __func, sizeof(__func), __mutex_name, sizeof(__mutex_name)); \ - ast_channel_unlock(chan); \ + int __res2 = ast_channel_unlock(chan); \ usleep(1); \ if (__res < 0) { /* Shouldn't ever happen, but just in case... */ \ - ast_channel_lock(chan); \ + if (__res2) { \ + ast_log(LOG_WARNING, "Could not unlock channel '%s': %s and no lock info found! I will NOT try to relock.\n", #chan, strerror(__res2)); \ + } else { \ + ast_channel_lock(chan); \ + } \ } else { \ - __ao2_lock(chan, __filename, __func, __lineno, __mutex_name); \ + if (__res2) { \ + ast_log(LOG_WARNING, "Could not unlock channel '%s': %s. {{{Originally locked at %s line %d: (%s) '%s'}}} I will NOT try to relock.\n", #chan, strerror(__res2), __filename, __lineno, __func, __mutex_name); \ + } else { \ + __ao2_lock(chan, __filename, __func, __lineno, __mutex_name); \ + } \ } \ } while (0) @@ -353,12 +362,20 @@ int ast_find_lock_info(void *lock_addr, char *filename, size_t filename_size, in char __filename[80], __func[80], __mutex_name[80]; \ int __lineno; \ int __res = ast_find_lock_info(lock, __filename, sizeof(__filename), &__lineno, __func, sizeof(__func), __mutex_name, sizeof(__mutex_name)); \ - ast_mutex_unlock(lock); \ + int __res2 = ast_mutex_unlock(lock); \ usleep(1); \ if (__res < 0) { /* Shouldn't ever happen, but just in case... */ \ - ast_mutex_lock(lock); \ + if (__res2 == 0) { \ + ast_mutex_lock(lock); \ + } else { \ + ast_log(LOG_WARNING, "Could not unlock mutex '%s': %s and no lock info found! I will NOT try to relock.\n", #lock, strerror(__res2)); \ + } \ } else { \ - __ast_pthread_mutex_lock(__filename, __lineno, __func, __mutex_name, lock); \ + if (__res2 == 0) { \ + __ast_pthread_mutex_lock(__filename, __lineno, __func, __mutex_name, lock); \ + } else { \ + ast_log(LOG_WARNING, "Could not unlock mutex '%s': %s. {{{Originally locked at %s line %d: (%s) '%s'}}} I will NOT try to relock.\n", #lock, strerror(__res2), __filename, __lineno, __func, __mutex_name); \ + } \ } \ } while (0) @@ -379,7 +396,7 @@ int ast_find_lock_info(void *lock_addr, char *filename, size_t filename_size, in char __filename[80], __func[80], __mutex_name[80]; \ int __lineno; \ int __res = ast_find_lock_info(lock, __filename, sizeof(__filename), &__lineno, __func, sizeof(__func), __mutex_name, sizeof(__mutex_name)); \ - ast_mutex_unlock(lock); + int __res2 = ast_mutex_unlock(lock); /*! * \brief Deadlock avoidance lock @@ -395,9 +412,17 @@ int ast_find_lock_info(void *lock_addr, char *filename, size_t filename_size, in */ #define DLA_LOCK(lock) \ if (__res < 0) { /* Shouldn't ever happen, but just in case... */ \ - ast_mutex_lock(lock); \ + if (__res2) { \ + ast_log(LOG_WARNING, "Could not unlock mutex '%s': %s and no lock info found! I will NOT try to relock.\n", #lock, strerror(__res2)); \ + } else { \ + ast_mutex_lock(lock); \ + } \ } else { \ - __ast_pthread_mutex_lock(__filename, __lineno, __func, __mutex_name, lock); \ + if (__res2) { \ + ast_log(LOG_WARNING, "Could not unlock mutex '%s': %s. {{{Originally locked at %s line %d: (%s) '%s'}}} I will NOT try to relock.\n", #lock, strerror(__res2), __filename, __lineno, __func, __mutex_name); \ + } else { \ + __ast_pthread_mutex_lock(__filename, __lineno, __func, __mutex_name, lock); \ + } \ } \ } while (0) @@ -447,9 +472,15 @@ static inline void delete_reentrancy_cs(struct ast_lock_track *lt) ast_channel_lock(chan); #define DEADLOCK_AVOIDANCE(lock) \ - ast_mutex_unlock(lock); \ - usleep(1); \ - ast_mutex_lock(lock); + do { \ + int __res; \ + if (!(__res = ast_mutex_unlock(lock))) { \ + usleep(1); \ + ast_mutex_lock(lock); \ + } else { \ + ast_log(LOG_WARNING, "Failed to unlock mutex '%s' (%s). I will NOT try to relock. {{{ THIS IS A BUG. }}}\n", #lock, strerror(__res)); \ + } \ + } while (0) #define DLA_UNLOCK(lock) ast_mutex_unlock(lock) |