blob: cfec9ae79dcfae140cf04edb9dfabea3c461d6b9 [file] [log] [blame]
* Copyright (c) 2011 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.
// If the critical section is heavily contended it may be beneficial to use
// read/write locks instead.
#include "common_types.h"
namespace webrtc {
class CriticalSectionWrapper
// Factory method, constructor disabled
static CriticalSectionWrapper* CreateCriticalSection();
virtual ~CriticalSectionWrapper() {}
// Tries to grab lock, beginning of a critical section. Will wait for the
// lock to become available if the grab failed.
virtual void Enter() = 0;
// Returns a grabbed lock, end of critical section.
virtual void Leave() = 0;
// RAII extension of the critical section. Prevents Enter/Leave mismatches and
// provides more compact critical section syntax.
class CriticalSectionScoped
// Deprecated, don't add more users of this constructor.
// TODO(mflodman) Remove this version of the constructor when no one is
// using it any longer.
explicit CriticalSectionScoped(CriticalSectionWrapper& critsec)
: _ptrCritSec(&critsec)
explicit CriticalSectionScoped(CriticalSectionWrapper* critsec)
: _ptrCritSec(critsec)
if (_ptrCritSec)
void Leave()
_ptrCritSec = 0;
CriticalSectionWrapper* _ptrCritSec;
} // namespace webrtc