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authorrussell <russell@f38db490-d61c-443f-a65b-d21fe96a405b>2008-02-28 22:39:26 +0000
committerrussell <russell@f38db490-d61c-443f-a65b-d21fe96a405b>2008-02-28 22:39:26 +0000
commit020573b8ac5cacaef68586712538067febee0d67 (patch)
tree897a726d01e6359400224e1db3450880fcfe68ab
parentd4718af66edfa3f0a64dc8a92cf24c8215fcb635 (diff)
Merged revisions 105116 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.4 ........ r105116 | russell | 2008-02-28 16:23:05 -0600 (Thu, 28 Feb 2008) | 8 lines Fix a bug in the lock tracking code that was discovered by mmichelson. The issue is that if the lock history array was full, then the functions to mark a lock as acquired or not would adjust the stats for whatever lock is at the end of the array, which may not be itself. So, do a sanity check to make sure that we're updating lock info for the proper lock. (This explains the bizarre stats on lock #63 in BE-396, thanks Mark!) ........ git-svn-id: http://svn.digium.com/svn/asterisk/trunk@105144 f38db490-d61c-443f-a65b-d21fe96a405b
-rw-r--r--include/asterisk/lock.h18
-rw-r--r--main/utils.c14
-rw-r--r--utils/check_expr.c4
3 files changed, 20 insertions, 16 deletions
diff --git a/include/asterisk/lock.h b/include/asterisk/lock.h
index f9a6a5831..5d6ef43bb 100644
--- a/include/asterisk/lock.h
+++ b/include/asterisk/lock.h
@@ -154,12 +154,12 @@ void ast_store_lock_info(enum ast_lock_type type, const char *filename,
/*!
* \brief Mark the last lock as acquired
*/
-void ast_mark_lock_acquired(void);
+void ast_mark_lock_acquired(void *lock_addr);
/*!
* \brief Mark the last lock as failed (trylock)
*/
-void ast_mark_lock_failed(void);
+void ast_mark_lock_failed(void *lock_addr);
/*!
* \brief remove lock info for the current thread
@@ -378,7 +378,7 @@ static inline int __ast_pthread_mutex_lock(const char *filename, int lineno, con
}
ast_reentrancy_unlock(t);
if (t->track)
- ast_mark_lock_acquired();
+ ast_mark_lock_acquired(&t->mutex);
} else {
if (t->track)
ast_remove_lock_info(&t->mutex);
@@ -428,9 +428,9 @@ static inline int __ast_pthread_mutex_trylock(const char *filename, int lineno,
}
ast_reentrancy_unlock(t);
if (t->track)
- ast_mark_lock_acquired();
+ ast_mark_lock_acquired(&t->mutex);
} else if (t->track) {
- ast_mark_lock_failed();
+ ast_mark_lock_failed(&t->mutex);
}
return res;
@@ -917,7 +917,7 @@ static inline int _ast_rwlock_rdlock(ast_rwlock_t *lock, const char *name,
ast_store_lock_info(AST_RDLOCK, file, line, func, name, lock);
res = pthread_rwlock_rdlock(lock);
if (!res)
- ast_mark_lock_acquired();
+ ast_mark_lock_acquired(lock);
else
ast_remove_lock_info(lock);
return res;
@@ -948,7 +948,7 @@ static inline int _ast_rwlock_wrlock(ast_rwlock_t *lock, const char *name,
ast_store_lock_info(AST_WRLOCK, file, line, func, name, lock);
res = pthread_rwlock_wrlock(lock);
if (!res)
- ast_mark_lock_acquired();
+ ast_mark_lock_acquired(lock);
else
ast_remove_lock_info(lock);
return res;
@@ -979,7 +979,7 @@ static inline int _ast_rwlock_tryrdlock(ast_rwlock_t *lock, const char *name,
ast_store_lock_info(AST_RDLOCK, file, line, func, name, lock);
res = pthread_rwlock_tryrdlock(lock);
if (!res)
- ast_mark_lock_acquired();
+ ast_mark_lock_acquired(lock);
else
ast_remove_lock_info(lock);
return res;
@@ -1010,7 +1010,7 @@ static inline int _ast_rwlock_trywrlock(ast_rwlock_t *lock, const char *name,
ast_store_lock_info(AST_WRLOCK, file, line, func, name, lock);
res = pthread_rwlock_trywrlock(lock);
if (!res)
- ast_mark_lock_acquired();
+ ast_mark_lock_acquired(lock);
else
ast_remove_lock_info(lock);
return res;
diff --git a/main/utils.c b/main/utils.c
index fcdd527dd..f8421b0c5 100644
--- a/main/utils.c
+++ b/main/utils.c
@@ -633,7 +633,7 @@ void ast_store_lock_info(enum ast_lock_type type, const char *filename,
pthread_mutex_unlock(&lock_info->lock);
}
-void ast_mark_lock_acquired(void)
+void ast_mark_lock_acquired(void *lock_addr)
{
struct thr_lock_info *lock_info;
@@ -641,11 +641,13 @@ void ast_mark_lock_acquired(void)
return;
pthread_mutex_lock(&lock_info->lock);
- lock_info->locks[lock_info->num_locks - 1].pending = 0;
+ if (lock_info->locks[lock_info->num_locks - 1].lock_addr == lock_addr) {
+ lock_info->locks[lock_info->num_locks - 1].pending = 0;
+ }
pthread_mutex_unlock(&lock_info->lock);
}
-void ast_mark_lock_failed(void)
+void ast_mark_lock_failed(void *lock_addr)
{
struct thr_lock_info *lock_info;
@@ -653,8 +655,10 @@ void ast_mark_lock_failed(void)
return;
pthread_mutex_lock(&lock_info->lock);
- lock_info->locks[lock_info->num_locks - 1].pending = -1;
- lock_info->locks[lock_info->num_locks - 1].times_locked--;
+ if (lock_info->locks[lock_info->num_locks - 1].lock_addr == lock_addr) {
+ lock_info->locks[lock_info->num_locks - 1].pending = -1;
+ lock_info->locks[lock_info->num_locks - 1].times_locked--;
+ }
pthread_mutex_unlock(&lock_info->lock);
}
diff --git a/utils/check_expr.c b/utils/check_expr.c
index 00d00d802..009fe8673 100644
--- a/utils/check_expr.c
+++ b/utils/check_expr.c
@@ -93,8 +93,8 @@ void ast_store_lock_info(enum ast_lock_type type, const char *filename,
/* not a lot to do in a standalone w/o threading! */
}
-void ast_mark_lock_acquired(void);
-void ast_mark_lock_acquired(void)
+void ast_mark_lock_acquired(void *);
+void ast_mark_lock_acquired(void *foo)
{
/* not a lot to do in a standalone w/o threading! */
}