61046eb38d
Since this is on Windows only, I'm also using the CriticalSectionWrapper and ConditionVariableWrapper Windows types directly which allows us to skip 3 extra heap allocations. It also helps with the removal of the 'friend' relationship between ConditionVariableWrapper and CriticalSectionWrapper, which is causing headaches on Mac. BUG= Review URL: https://codereview.webrtc.org/1595983002 Cr-Commit-Position: refs/heads/master@{#11300}
46 lines
1.3 KiB
C++
46 lines
1.3 KiB
C++
/*
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* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_SYSTEM_WRAPPERS_SOURCE_RW_LOCK_WINXP_WIN_H_
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#define WEBRTC_SYSTEM_WRAPPERS_SOURCE_RW_LOCK_WINXP_WIN_H_
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#include "webrtc/system_wrappers/include/rw_lock_wrapper.h"
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#include "webrtc/system_wrappers/source/condition_variable_event_win.h"
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#include "webrtc/system_wrappers/source/critical_section_win.h"
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#include "webrtc/typedefs.h"
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namespace webrtc {
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class RWLockWinXP : public RWLockWrapper {
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public:
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RWLockWinXP();
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~RWLockWinXP() override;
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void AcquireLockExclusive() override;
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void ReleaseLockExclusive() override;
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void AcquireLockShared() override;
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void ReleaseLockShared() override;
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private:
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CriticalSectionWindows critical_section_;
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ConditionVariableEventWin read_condition_;
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ConditionVariableEventWin write_condition_;
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int readers_active_ = 0;
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bool writer_active_ = false;
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int readers_waiting_ = 0;
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int writers_waiting_ = 0;
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};
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} // namespace webrtc
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#endif // WEBRTC_SYSTEM_WRAPPERS_SOURCE_RW_LOCK_WINXP_WIN_H_
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