1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef BASE_SIMPLE_TEST_CLOCK_H_ 6 #define BASE_SIMPLE_TEST_CLOCK_H_ 7 8 #include "base/compiler_specific.h" 9 #include "base/synchronization/lock.h" 10 #include "base/time/clock.h" 11 #include "base/time/time.h" 12 13 namespace base { 14 15 // SimpleTestClock is a Clock implementation that gives control over 16 // the returned Time objects. All methods may be called from any 17 // thread. 18 class SimpleTestClock : public Clock { 19 public: 20 // Starts off with a clock set to Time(). 21 SimpleTestClock(); 22 virtual ~SimpleTestClock(); 23 24 virtual Time Now() OVERRIDE; 25 26 // Advances the clock by |delta|. 27 void Advance(TimeDelta delta); 28 29 // Sets the clock to the given time. 30 void SetNow(Time now); 31 32 private: 33 // Protects |now_|. 34 Lock lock_; 35 36 Time now_; 37 }; 38 39 } // namespace base 40 41 #endif // BASE_SIMPLE_TEST_CLOCK_H_ 42