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-rw-r--r--mojo/public/cpp/utility/mutex.h70
1 files changed, 0 insertions, 70 deletions
diff --git a/mojo/public/cpp/utility/mutex.h b/mojo/public/cpp/utility/mutex.h
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--- a/mojo/public/cpp/utility/mutex.h
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@@ -1,70 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef MOJO_PUBLIC_CPP_UTILITY_MUTEX_H_
-#define MOJO_PUBLIC_CPP_UTILITY_MUTEX_H_
-
-#ifdef _WIN32
-#error "Not implemented: See crbug.com/342893."
-#endif
-
-#include <pthread.h>
-
-#include "mojo/public/cpp/system/macros.h"
-
-namespace mojo {
-
-#ifdef NDEBUG
-// Note: Make a C++ constant for |PTHREAD_MUTEX_INITIALIZER|. (We can't directly
-// use the C macro in an initializer list, since it might expand to |{ ... }|.)
-namespace internal {
-const pthread_mutex_t kPthreadMutexInitializer = PTHREAD_MUTEX_INITIALIZER;
-}
-#endif
-
-class Mutex {
- public:
-#ifdef NDEBUG
- Mutex() : mutex_(internal::kPthreadMutexInitializer) {}
- ~Mutex() { pthread_mutex_destroy(&mutex_); }
-
- void Lock() { pthread_mutex_lock(&mutex_); }
- void Unlock() { pthread_mutex_unlock(&mutex_); }
- bool TryLock() { return pthread_mutex_trylock(&mutex_) == 0; }
-
- void AssertHeld() {}
-#else
- Mutex();
- ~Mutex();
-
- void Lock();
- void Unlock();
- bool TryLock();
-
- void AssertHeld();
-#endif
-
- private:
- pthread_mutex_t mutex_;
-
- MOJO_DISALLOW_COPY_AND_ASSIGN(Mutex);
-};
-
-class MutexLock {
- public:
- explicit MutexLock(Mutex* mutex) : mutex_(mutex) { mutex_->Lock(); }
- ~MutexLock() { mutex_->Unlock(); }
-
- private:
- Mutex* const mutex_;
-
- MOJO_DISALLOW_COPY_AND_ASSIGN(MutexLock);
-};
-
-// Catch bug where variable name is omitted (e.g., |MutexLock (&mu)|).
-#define MutexLock(x) static_assert(0, "MutexLock() missing variable name");
-
-} // namespace mojo
-
-#endif // MOJO_PUBLIC_CPP_UTILITY_MUTEX_H_