diff options
Diffstat (limited to 'absl/base/internal/spinlock.h')
| -rw-r--r-- | absl/base/internal/spinlock.h | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/absl/base/internal/spinlock.h b/absl/base/internal/spinlock.h index df947661..24e2e9a6 100644 --- a/absl/base/internal/spinlock.h +++ b/absl/base/internal/spinlock.h @@ -46,10 +46,10 @@ #include "absl/base/thread_annotations.h" namespace absl { -inline namespace lts_2019_08_08 { +ABSL_NAMESPACE_BEGIN namespace base_internal { -class LOCKABLE SpinLock { +class ABSL_LOCKABLE SpinLock { public: SpinLock() : lockword_(kSpinLockCooperative) { ABSL_TSAN_MUTEX_CREATE(this, __tsan_mutex_not_static); @@ -80,7 +80,7 @@ class LOCKABLE SpinLock { ~SpinLock() { ABSL_TSAN_MUTEX_DESTROY(this, __tsan_mutex_not_static); } // Acquire this SpinLock. - inline void Lock() EXCLUSIVE_LOCK_FUNCTION() { + inline void Lock() ABSL_EXCLUSIVE_LOCK_FUNCTION() { ABSL_TSAN_MUTEX_PRE_LOCK(this, 0); if (!TryLockImpl()) { SlowLock(); @@ -92,7 +92,7 @@ class LOCKABLE SpinLock { // acquisition was successful. If the lock was not acquired, false is // returned. If this SpinLock is free at the time of the call, TryLock // will return true with high probability. - inline bool TryLock() EXCLUSIVE_TRYLOCK_FUNCTION(true) { + inline bool TryLock() ABSL_EXCLUSIVE_TRYLOCK_FUNCTION(true) { ABSL_TSAN_MUTEX_PRE_LOCK(this, __tsan_mutex_try_lock); bool res = TryLockImpl(); ABSL_TSAN_MUTEX_POST_LOCK( @@ -102,7 +102,7 @@ class LOCKABLE SpinLock { } // Release this SpinLock, which must be held by the calling thread. - inline void Unlock() UNLOCK_FUNCTION() { + inline void Unlock() ABSL_UNLOCK_FUNCTION() { ABSL_TSAN_MUTEX_PRE_UNLOCK(this, 0); uint32_t lock_value = lockword_.load(std::memory_order_relaxed); lock_value = lockword_.exchange(lock_value & kSpinLockCooperative, @@ -180,13 +180,13 @@ class LOCKABLE SpinLock { // Corresponding locker object that arranges to acquire a spinlock for // the duration of a C++ scope. -class SCOPED_LOCKABLE SpinLockHolder { +class ABSL_SCOPED_LOCKABLE SpinLockHolder { public: - inline explicit SpinLockHolder(SpinLock* l) EXCLUSIVE_LOCK_FUNCTION(l) + inline explicit SpinLockHolder(SpinLock* l) ABSL_EXCLUSIVE_LOCK_FUNCTION(l) : lock_(l) { l->Lock(); } - inline ~SpinLockHolder() UNLOCK_FUNCTION() { lock_->Unlock(); } + inline ~SpinLockHolder() ABSL_UNLOCK_FUNCTION() { lock_->Unlock(); } SpinLockHolder(const SpinLockHolder&) = delete; SpinLockHolder& operator=(const SpinLockHolder&) = delete; @@ -226,11 +226,10 @@ inline uint32_t SpinLock::TryLockInternal(uint32_t lock_value, } } - if (lockword_.compare_exchange_strong( + if (!lockword_.compare_exchange_strong( lock_value, kSpinLockHeld | lock_value | wait_cycles | sched_disabled_bit, std::memory_order_acquire, std::memory_order_relaxed)) { - } else { base_internal::SchedulingGuard::EnableRescheduling(sched_disabled_bit != 0); } @@ -238,7 +237,7 @@ inline uint32_t SpinLock::TryLockInternal(uint32_t lock_value, } } // namespace base_internal -} // inline namespace lts_2019_08_08 +ABSL_NAMESPACE_END } // namespace absl #endif // ABSL_BASE_INTERNAL_SPINLOCK_H_ |