diff options
Diffstat (limited to 'base/synchronization/lock_impl_posix.cc')
| -rw-r--r-- | base/synchronization/lock_impl_posix.cc | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/base/synchronization/lock_impl_posix.cc b/base/synchronization/lock_impl_posix.cc index f638fcd..8db953a 100644 --- a/base/synchronization/lock_impl_posix.cc +++ b/base/synchronization/lock_impl_posix.cc @@ -12,6 +12,10 @@ namespace base { namespace internal { LockImpl::LockImpl() { +#ifdef LOCK_IMPL_CHECK_LIVENESS + liveness_token_ = LT_ALIVE; +#endif + #ifndef NDEBUG // In debug, setup attributes for lock error checking. pthread_mutexattr_t mta; @@ -30,25 +34,45 @@ LockImpl::LockImpl() { } LockImpl::~LockImpl() { +#ifdef LOCK_IMPL_CHECK_LIVENESS + CheckIsAlive(); + liveness_token_ = LT_DELETED; +#endif int rv = pthread_mutex_destroy(&os_lock_); DCHECK_EQ(rv, 0); } bool LockImpl::Try() { +#ifdef LOCK_IMPL_CHECK_LIVENESS + CheckIsAlive(); +#endif int rv = pthread_mutex_trylock(&os_lock_); DCHECK(rv == 0 || rv == EBUSY); return rv == 0; } void LockImpl::Lock() { +#ifdef LOCK_IMPL_CHECK_LIVENESS + CheckIsAlive(); +#endif int rv = pthread_mutex_lock(&os_lock_); DCHECK_EQ(rv, 0); } void LockImpl::Unlock() { +#ifdef LOCK_IMPL_CHECK_LIVENESS + CheckIsAlive(); +#endif int rv = pthread_mutex_unlock(&os_lock_); DCHECK_EQ(rv, 0); } +#ifdef LOCK_IMPL_CHECK_LIVENESS +void LockImpl::CheckIsAlive() { + CHECK_EQ(LT_ALIVE, liveness_token_) + << "Lock was invalid. Please see: http://crbug.com/102161"; +} +#endif + } // namespace internal } // namespace base |