Index: webrtc/base/race_checker.cc |
diff --git a/webrtc/base/race_checker.cc b/webrtc/base/race_checker.cc |
deleted file mode 100644 |
index 92bdd7bdfd18901906fb221fc395ba7039fb99fc..0000000000000000000000000000000000000000 |
--- a/webrtc/base/race_checker.cc |
+++ /dev/null |
@@ -1,54 +0,0 @@ |
-/* |
- * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. |
- * |
- * Use of this source code is governed by a BSD-style license |
- * that can be found in the LICENSE file in the root of the source |
- * tree. An additional intellectual property rights grant can be found |
- * in the file PATENTS. All contributing project authors may |
- * be found in the AUTHORS file in the root of the source tree. |
- */ |
- |
-#include "webrtc/base/race_checker.h" |
- |
-namespace rtc { |
- |
-RaceChecker::RaceChecker() {} |
- |
-// Note that the implementation here is in itself racy, but we pretend it does |
-// not matter because we want this useful in release builds without having to |
-// pay the cost of using atomics. A race hitting the race checker is likely to |
-// cause access_count_ to diverge from zero and therefore cause the ThreadRef |
-// comparison to fail, signaling a race, although it may not be in the exact |
-// spot where a race *first* appeared in the code we're trying to protect. There |
-// is also a chance that an actual race is missed, however the probability of |
-// that has been considered small enough to be an acceptable trade off. |
-bool RaceChecker::Acquire() const { |
- const PlatformThreadRef current_thread = CurrentThreadRef(); |
- // Set new accessing thread if this is a new use. |
- if (access_count_++ == 0) |
- accessing_thread_ = current_thread; |
- // If this is being used concurrently this check will fail for the second |
- // thread entering since it won't set the thread. Recursive use of checked |
- // methods are OK since the accessing thread remains the same. |
- const PlatformThreadRef accessing_thread = accessing_thread_; |
- return IsThreadRefEqual(accessing_thread, current_thread); |
-} |
- |
-void RaceChecker::Release() const { |
- --access_count_; |
-} |
- |
-namespace internal { |
-RaceCheckerScope::RaceCheckerScope(const RaceChecker* race_checker) |
- : race_checker_(race_checker), race_check_ok_(race_checker->Acquire()) {} |
- |
-bool RaceCheckerScope::RaceDetected() const { |
- return !race_check_ok_; |
-} |
- |
-RaceCheckerScope::~RaceCheckerScope() { |
- race_checker_->Release(); |
-} |
- |
-} // namespace internal |
-} // namespace rtc |