Page Speed Optimization Libraries
1.5.27.2
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00001 /* 00002 * Copyright 2013 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 00028 00029 #ifndef NET_INSTAWEB_UTIL_PUBLIC_NULL_THREAD_SYSTEM_H_ 00030 #define NET_INSTAWEB_UTIL_PUBLIC_NULL_THREAD_SYSTEM_H_ 00031 00032 #include "net/instaweb/util/public/thread_system.h" 00033 #include "pagespeed/kernel/base/basictypes.h" 00034 00035 namespace net_instaweb { 00036 00037 class Timer; 00038 00042 class NullThreadSystem : public ThreadSystem { 00043 public: 00044 NullThreadSystem() : thread_id_(1) {} 00045 virtual ~NullThreadSystem(); 00046 virtual CondvarCapableMutex* NewMutex(); 00047 virtual RWLock* NewRWLock(); 00048 virtual Timer* NewTimer(); 00049 virtual ThreadId* GetThreadId() const; 00050 00052 void set_current_thread(int id) { thread_id_ = id; } 00053 int current_thread() const { return thread_id_; } 00054 00055 private: 00056 virtual ThreadImpl* NewThreadImpl(Thread* wrapper, ThreadFlags flags); 00057 00058 private: 00059 int thread_id_; 00060 00061 DISALLOW_COPY_AND_ASSIGN(NullThreadSystem); 00062 }; 00063 00064 } 00065 00066 #endif ///< NET_INSTAWEB_UTIL_PUBLIC_NULL_THREAD_SYSTEM_H_