michael@0: /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim: set ts=8 sts=2 et sw=2 tw=80: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef LulRWLock_h
michael@0: #define LulRWLock_h
michael@0: 
michael@0: #include "LulPlatformMacros.h"
michael@0: #include <pthread.h>
michael@0: 
michael@0: // This class provides a simple wrapper around reader-writer locks.
michael@0: // This is necessary because Android 2.2's libpthread does not
michael@0: // provide such functionality, so there has to be a way to provide
michael@0: // an alternative with an equivalent interface.
michael@0: 
michael@0: namespace lul {
michael@0: 
michael@0: class LulRWLock {
michael@0: 
michael@0: public:
michael@0:   LulRWLock();
michael@0:   ~LulRWLock();
michael@0:   void WrLock();
michael@0:   void RdLock();
michael@0:   void Unlock();
michael@0: 
michael@0: private:
michael@0: #if defined(LUL_OS_android)
michael@0:   pthread_mutex_t mLock;
michael@0: #elif defined(LUL_OS_linux)
michael@0:   pthread_rwlock_t mLock;
michael@0: #else
michael@0: # error "Unsupported OS"
michael@0: #endif
michael@0: 
michael@0: };
michael@0: 
michael@0: } // namespace lul
michael@0: 
michael@0: #endif // LulRWLock_h