Merged revisions 84271 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.4 ........ r84271 | russell | 2007-10-01 16:07:06 -0500 (Mon, 01 Oct 2007) | 4 lines Fulfull a feature request from Qwell on the "core show locks" output. It will now note the lock type for each lock that a thread holds. (mutex, rdlock, or wrlock) ........ git-svn-id: http://svn.digium.com/svn/asterisk/trunk@84272 f38db490-d61c-443f-a65b-d21fe96a405b
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@ -126,6 +126,12 @@ typedef pthread_cond_t ast_cond_t;
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static pthread_mutex_t empty_mutex;
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enum ast_lock_type {
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AST_MUTEX,
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AST_RDLOCK,
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AST_WRLOCK,
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};
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/*!
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* \brief Store lock info for the current thread
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*
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@ -134,8 +140,8 @@ static pthread_mutex_t empty_mutex;
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* lock info struct. The lock is marked as pending as the thread is waiting
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* on the lock. ast_mark_lock_acquired() will mark it as held by this thread.
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*/
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void ast_store_lock_info(const char *filename, int line_num,
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const char *func, const char *lock_name, void *lock_addr);
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void ast_store_lock_info(enum ast_lock_type type, const char *filename,
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int line_num, const char *func, const char *lock_name, void *lock_addr);
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/*!
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* \brief Mark the last lock as acquired
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@ -249,7 +255,7 @@ static inline int __ast_pthread_mutex_lock(const char *filename, int lineno, con
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int canlog = strcmp(filename, "logger.c");
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if (t->track)
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ast_store_lock_info(filename, lineno, func, mutex_name, &t->mutex);
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ast_store_lock_info(AST_MUTEX, filename, lineno, func, mutex_name, &t->mutex);
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#if defined(AST_MUTEX_INIT_W_CONSTRUCTORS)
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if ((t->mutex) == ((pthread_mutex_t) PTHREAD_MUTEX_INITIALIZER)) {
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@ -333,7 +339,7 @@ static inline int __ast_pthread_mutex_trylock(const char *filename, int lineno,
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#endif /* AST_MUTEX_INIT_W_CONSTRUCTORS */
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if (t->track)
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ast_store_lock_info(filename, lineno, func, mutex_name, &t->mutex);
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ast_store_lock_info(AST_MUTEX, filename, lineno, func, mutex_name, &t->mutex);
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if (!(res = pthread_mutex_trylock(&t->mutex))) {
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if (t->track)
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@ -469,7 +475,7 @@ static inline int __ast_cond_wait(const char *filename, int lineno, const char *
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DO_THREAD_CRASH;
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} else {
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if (t->track)
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ast_store_lock_info(filename, lineno, func, mutex_name, &t->mutex);
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ast_store_lock_info(AST_MUTEX, filename, lineno, func, mutex_name, &t->mutex);
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if (t->reentrancy < AST_MAX_REENTRANCY) {
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t->file[t->reentrancy] = filename;
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@ -530,7 +536,7 @@ static inline int __ast_cond_timedwait(const char *filename, int lineno, const c
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DO_THREAD_CRASH;
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} else {
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if (t->track)
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ast_store_lock_info(filename, lineno, func, mutex_name, &t->mutex);
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ast_store_lock_info(AST_MUTEX, filename, lineno, func, mutex_name, &t->mutex);
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if (t->reentrancy < AST_MAX_REENTRANCY) {
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t->file[t->reentrancy] = filename;
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@ -722,7 +728,7 @@ static inline int _ast_rwlock_rdlock(ast_rwlock_t *lock, const char *name,
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const char *file, int line, const char *func)
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{
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int res;
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ast_store_lock_info(file, line, func, name, lock);
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ast_store_lock_info(AST_RDLOCK, file, line, func, name, lock);
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res = pthread_rwlock_rdlock(lock);
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if (!res)
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ast_mark_lock_acquired();
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@ -738,7 +744,7 @@ static inline int _ast_rwlock_wrlock(ast_rwlock_t *lock, const char *name,
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const char *file, int line, const char *func)
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{
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int res;
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ast_store_lock_info(file, line, func, name, lock);
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ast_store_lock_info(AST_WRLOCK, file, line, func, name, lock);
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res = pthread_rwlock_wrlock(lock);
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if (!res)
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ast_mark_lock_acquired();
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@ -754,7 +760,7 @@ static inline int _ast_rwlock_tryrdlock(ast_rwlock_t *lock, const char *name,
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const char *file, int line, const char *func)
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{
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int res;
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ast_store_lock_info(file, line, func, name, lock);
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ast_store_lock_info(AST_RDLOCK, file, line, func, name, lock);
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res = pthread_rwlock_tryrdlock(lock);
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if (!res)
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ast_mark_lock_acquired();
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@ -770,7 +776,7 @@ static inline int _ast_rwlock_trywrlock(ast_rwlock_t *lock, const char *name,
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const char *file, int line, const char *func)
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{
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int res;
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ast_store_lock_info(file, line, func, name, lock);
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ast_store_lock_info(AST_WRLOCK, file, line, func, name, lock);
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res = pthread_rwlock_trywrlock(lock);
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if (!res)
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ast_mark_lock_acquired();
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@ -780,6 +786,7 @@ static inline int _ast_rwlock_trywrlock(ast_rwlock_t *lock, const char *name,
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}
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#else
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static inline int ast_rwlock_unlock(ast_rwlock_t *prwlock)
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{
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return pthread_rwlock_unlock(prwlock);
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26
main/utils.c
26
main/utils.c
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@ -547,6 +547,7 @@ struct thr_lock_info {
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const char *lock_name;
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void *lock_addr;
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int times_locked;
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enum ast_lock_type type;
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/*! This thread is waiting on this lock */
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unsigned int pending:1;
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} locks[AST_MAX_LOCKS];
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@ -592,8 +593,8 @@ static void lock_info_destroy(void *data)
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*/
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AST_THREADSTORAGE_CUSTOM(thread_lock_info, NULL, lock_info_destroy);
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void ast_store_lock_info(const char *filename, int line_num,
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const char *func, const char *lock_name, void *lock_addr)
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void ast_store_lock_info(enum ast_lock_type type, const char *filename,
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int line_num, const char *func, const char *lock_name, void *lock_addr)
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{
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struct thr_lock_info *lock_info;
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int i;
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@ -625,6 +626,7 @@ void ast_store_lock_info(const char *filename, int line_num,
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lock_info->locks[i].lock_name = lock_name;
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lock_info->locks[i].lock_addr = lock_addr;
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lock_info->locks[i].times_locked = 1;
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lock_info->locks[i].type = type;
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lock_info->locks[i].pending = 1;
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lock_info->num_locks++;
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@ -681,6 +683,20 @@ void ast_remove_lock_info(void *lock_addr)
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pthread_mutex_unlock(&lock_info->lock);
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}
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static const char *locktype2str(enum ast_lock_type type)
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{
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switch (type) {
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case AST_MUTEX:
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return "MUTEX";
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case AST_RDLOCK:
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return "RDLOCK";
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case AST_WRLOCK:
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return "WRLOCK";
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}
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return "UNKNOWN";
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}
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static char *handle_show_locks(struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
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{
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struct thr_lock_info *lock_info;
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@ -713,9 +729,11 @@ static char *handle_show_locks(struct ast_cli_entry *e, int cmd, struct ast_cli_
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lock_info->thread_name);
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pthread_mutex_lock(&lock_info->lock);
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for (i = 0; i < lock_info->num_locks; i++) {
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ast_cli(a->fd, "=== ---> %sLock #%d: %s %d %s %s %p (%d)\n",
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ast_cli(a->fd, "=== ---> %sLock #%d (%s): %s %d %s %s %p (%d)\n",
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lock_info->locks[i].pending ? "Waiting for " : "", i,
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lock_info->locks[i].file, lock_info->locks[i].line_num,
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lock_info->locks[i].file,
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locktype2str(lock_info->locks[i].type),
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lock_info->locks[i].line_num,
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lock_info->locks[i].func, lock_info->locks[i].lock_name,
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lock_info->locks[i].lock_addr,
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lock_info->locks[i].times_locked);
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