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// Copyright (c) 2012 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 GPU_COMMAND_BUFFER_CLIENT_ATOMICOPS_H_
#define GPU_COMMAND_BUFFER_CLIENT_ATOMICOPS_H_
#include "../../gpu_export.h"
#include "../common/scoped_ptr.h"
#include "../common/types.h"
namespace gpu {
void MemoryBarrier();
class LockImpl;
class GPU_EXPORT Lock {
public:
Lock();
~Lock();
void Acquire();
void Release();
bool Try();
void AssertAcquired() const;
private:
scoped_ptr<LockImpl> lock_;
DISALLOW_COPY_AND_ASSIGN(Lock);
};
// A helper class that acquires the given Lock while the AutoLock is in scope.
class GPU_EXPORT AutoLock {
public:
explicit AutoLock(Lock& lock) : lock_(lock) {
lock_.Acquire();
}
~AutoLock() {
lock_.AssertAcquired();
lock_.Release();
}
private:
Lock& lock_;
DISALLOW_COPY_AND_ASSIGN(AutoLock);
};
} // namespace gpu
#endif // GPU_COMMAND_BUFFER_CLIENT_ATOMICOPS_H_
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