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Add witness, a simple online locking validator.

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This resolves #358.
This commit is contained in:
Jason Evans 2016-04-13 23:36:15 -07:00
parent 8413463f3a
commit b2c0d6322d
33 changed files with 2118 additions and 1302 deletions
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21
src/mutex.c
View file

@ -69,7 +69,7 @@ JEMALLOC_EXPORT int _pthread_mutex_init_calloc_cb(pthread_mutex_t *mutex,
#endif
bool
malloc_mutex_init(malloc_mutex_t *mutex)
malloc_mutex_init(malloc_mutex_t *mutex, const char *name, witness_rank_t rank)
{
#ifdef _WIN32
@ -103,31 +103,34 @@ malloc_mutex_init(malloc_mutex_t *mutex)
}
pthread_mutexattr_destroy(&attr);
#endif
if (config_debug)
witness_init(&mutex->witness, name, rank, NULL);
return (false);
}
void
malloc_mutex_prefork(malloc_mutex_t *mutex)
malloc_mutex_prefork(tsd_t *tsd, malloc_mutex_t *mutex)
{
malloc_mutex_lock(mutex);
malloc_mutex_lock(tsd, mutex);
}
void
malloc_mutex_postfork_parent(malloc_mutex_t *mutex)
malloc_mutex_postfork_parent(tsd_t *tsd, malloc_mutex_t *mutex)
{
malloc_mutex_unlock(mutex);
malloc_mutex_unlock(tsd, mutex);
}
void
malloc_mutex_postfork_child(malloc_mutex_t *mutex)
malloc_mutex_postfork_child(tsd_t *tsd, malloc_mutex_t *mutex)
{
#ifdef JEMALLOC_MUTEX_INIT_CB
malloc_mutex_unlock(mutex);
malloc_mutex_unlock(tsd, mutex);
#else
if (malloc_mutex_init(mutex)) {
if (malloc_mutex_init(mutex, mutex->witness.name,
mutex->witness.rank)) {
malloc_printf("<jemalloc>: Error re-initializing mutex in "
"child\n");
if (opt_abort)
@ -137,7 +140,7 @@ malloc_mutex_postfork_child(malloc_mutex_t *mutex)
}
bool
mutex_boot(void)
malloc_mutex_boot(void)
{
#ifdef JEMALLOC_MUTEX_INIT_CB