Page Speed Optimization Libraries  1.2.24.1
net/instaweb/util/public/atomic_bool.h
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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_ATOMIC_BOOL_H_
00020 #define NET_INSTAWEB_UTIL_PUBLIC_ATOMIC_BOOL_H_
00021 
00022 #include "net/instaweb/util/public/atomicops.h"
00023 #include "net/instaweb/util/public/basictypes.h"
00024 
00025 namespace net_instaweb {
00026 
00031 class AtomicBool {
00032  public:
00034   AtomicBool() {
00035     set_value(false);
00036   }
00037 
00038   ~AtomicBool() {}
00039 
00040   bool value() const {
00041     return base::subtle::Acquire_Load(&value_);
00042   }
00043 
00044   void set_value(bool v) {
00045     base::subtle::Release_Store(&value_, v);
00046   }
00047 
00048  private:
00049   base::subtle::AtomicWord value_;
00050   DISALLOW_COPY_AND_ASSIGN(AtomicBool);
00051 };
00052 
00053 
00054 }  
00055 
00056 #endif  ///< NET_INSTAWEB_UTIL_PUBLIC_ATOMIC_BOOL_H_
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