gecko-dev/tools/profiler/LulRWLock.h
Julian Seward 9bd60ea2d4 Bug 938157 - Lightweight CFI/EXIDX unwinding library for SPS. r=n.nethercote, nfroyd, bgirard.
--HG--
extra : rebase_source : bd427749667ddd6641eff414879c3706a5cb5f5e
2013-12-18 13:02:34 +01:00

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef LulRWLock_h
#define LulRWLock_h
#include "LulPlatformMacros.h"
#include <pthread.h>
// This class provides a simple wrapper around reader-writer locks.
// This is necessary because Android 2.2's libpthread does not
// provide such functionality, so there has to be a way to provide
// an alternative with an equivalent interface.
namespace lul {
class LulRWLock {
public:
LulRWLock();
~LulRWLock();
void WrLock();
void RdLock();
void Unlock();
private:
#if defined(LUL_OS_android)
pthread_mutex_t mLock;
#elif defined(LUL_OS_linux)
pthread_rwlock_t mLock;
#else
# error "Unsupported OS"
#endif
};
} // namespace lul
#endif // LulRWLock_h