Page Speed Optimization Libraries  1.3.25.1
net/instaweb/util/public/mock_timer.h
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00001 /*
00002  * Copyright 2010 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_MOCK_TIMER_H_
00020 #define NET_INSTAWEB_UTIL_PUBLIC_MOCK_TIMER_H_
00021 
00022 #include <vector>                       
00023 
00024 #include "net/instaweb/util/public/abstract_mutex.h"
00025 #include "net/instaweb/util/public/basictypes.h"
00026 #include "net/instaweb/util/public/scoped_ptr.h"
00027 #include "net/instaweb/util/public/timer.h"
00028 
00029 namespace net_instaweb {
00030 
00031 class MockTimer : public Timer {
00032  public:
00034   static const int64 kApr_5_2010_ms;
00035 
00036   explicit MockTimer(int64 time_ms);
00037   virtual ~MockTimer();
00038 
00041   void SetTimeUs(int64 new_time_us);
00042   void SetTimeMs(int64 new_time_ms) { SetTimeUs(1000 * new_time_ms); }
00043 
00045   void AdvanceUs(int64 delta_us) { SetTimeUs(time_us_ + delta_us); }
00046 
00048   void AdvanceMs(int64 delta_ms) { AdvanceUs(1000 * delta_ms); }
00049 
00051   void SetTimeDeltaUs(int64 delta_us) { deltas_us_.push_back(delta_us); }
00052 
00054   void SetTimeDeltaMs(int64 delta_ms) { SetTimeDeltaUs(1000 * delta_ms); }
00055 
00057   virtual int64 NowUs() const;
00058   virtual void SleepUs(int64 us) { AdvanceUs(us); }
00059   virtual void SleepMs(int64 ms) { AdvanceUs(1000 * ms); }
00060 
00064   void set_mutex(AbstractMutex* mutex) { mutex_.reset(mutex); }
00065 
00066  private:
00067   mutable int64 time_us_;
00068   scoped_ptr<AbstractMutex> mutex_;
00069   std::vector<int64> deltas_us_;
00070   mutable unsigned int next_delta_;
00071 
00072   DISALLOW_COPY_AND_ASSIGN(MockTimer);
00073 };
00074 
00075 }  
00076 
00077 #endif  ///< NET_INSTAWEB_UTIL_PUBLIC_MOCK_TIMER_H_
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