Page Speed Optimization Libraries  1.3.25.1
net/instaweb/util/public/slow_worker.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 
00021 
00022 #ifndef NET_INSTAWEB_UTIL_PUBLIC_SLOW_WORKER_H_
00023 #define NET_INSTAWEB_UTIL_PUBLIC_SLOW_WORKER_H_
00024 
00025 #include "net/instaweb/util/public/basictypes.h"
00026 #include "net/instaweb/util/public/string_util.h"
00027 #include "net/instaweb/util/public/worker.h"
00028 
00029 namespace net_instaweb {
00030 
00031 class Function;
00032 class ThreadSystem;
00033 
00035 class SlowWorker : public Worker {
00036  public:
00039   SlowWorker(StringPiece thread_name, ThreadSystem* runtime);
00040 
00042   virtual ~SlowWorker();
00043 
00048   void RunIfNotBusy(Function* closure);
00049 
00050  private:
00051   virtual bool IsPermitted(Function* closure);
00052 
00053   DISALLOW_COPY_AND_ASSIGN(SlowWorker);
00054 };
00055 
00056 }  
00057 
00058 #endif  ///< NET_INSTAWEB_UTIL_PUBLIC_SLOW_WORKER_H_
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