Page Speed Optimization Libraries  1.4.26.1
net/instaweb/util/public/pthread_rw_lock.h
Go to the documentation of this file.
00001 /*
00002  * Copyright 2011 Google Inc.
00003  *
00004  * Licensed under the Apache License, Version 2.0 (the "License");
00005  * you may not use this file except in compliance with the License.
00006  * You may obtain a copy of the License at
00007  *
00008  *      http:///www.apache.org/licenses/LICENSE-2.0
00009  *
00010  * Unless required by applicable law or agreed to in writing, software
00011  * distributed under the License is distributed on an "AS IS" BASIS,
00012  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00013  * See the License for the specific language governing permissions and
00014  * limitations under the License.
00015  */
00016 
00018 
00019 #ifndef NET_INSTAWEB_UTIL_PUBLIC_PTHREAD_RW_LOCK_H_
00020 #define NET_INSTAWEB_UTIL_PUBLIC_PTHREAD_RW_LOCK_H_
00021 
00022 #include <pthread.h>
00023 #include "net/instaweb/util/public/basictypes.h"
00024 #include "net/instaweb/util/public/thread_system.h"
00025 
00026 namespace net_instaweb {
00027 
00029 class PthreadRWLock : public ThreadSystem::RWLock {
00030  public:
00031   PthreadRWLock();
00032   virtual ~PthreadRWLock();
00033   virtual bool TryLock();
00034   virtual void Lock();
00035   virtual void Unlock();
00036   virtual bool ReaderTryLock();
00037   virtual void ReaderLock();
00038   virtual void ReaderUnlock();
00039 
00040  private:
00041   pthread_rwlock_t rwlock_;
00042   pthread_rwlockattr_t attr_;
00043 
00044   DISALLOW_COPY_AND_ASSIGN(PthreadRWLock);
00045 };
00046 
00047 }  
00048 
00049 #endif  ///< NET_INSTAWEB_UTIL_PUBLIC_PTHREAD_RW_LOCK_H_
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Defines