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authorakalin@chromium.org <akalin@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2013-02-21 21:50:34 +0000
committerakalin@chromium.org <akalin@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98>2013-02-21 21:50:34 +0000
commit0cb3d72e44bbca50104f8a79acdff5c6344278b8 (patch)
treea79b35e3eb8c1c705268ae173fc9caa00bf47e8b /base/test/simple_test_clock.h
parent4d805b5db89c08532633e9fcacdc4df0828fe1fe (diff)
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Add a Clock and TickClock interface for mocking out time
Add DefaultClock and DefaultTickClock implementations. Add SimpleTestClock and SimpleTestTickClock implementations for test. Port some classes in sync/ and media/ to use SimpleTest{,Tick}Clock. BUG=166469 Review URL: https://codereview.chromium.org/11607003 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@183865 0039d316-1c4b-4281-b951-d872f2087c98
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diff --git a/base/test/simple_test_clock.h b/base/test/simple_test_clock.h
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+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef BASE_SIMPLE_TEST_CLOCK_H_
+#define BASE_SIMPLE_TEST_CLOCK_H_
+
+#include "base/compiler_specific.h"
+#include "base/synchronization/lock.h"
+#include "base/time.h"
+#include "base/time/clock.h"
+
+namespace base {
+
+// SimpleTestClock is a Clock implementation that gives control over
+// the returned Time objects. All methods can be called from any
+// thread.
+class SimpleTestClock : public Clock {
+ public:
+ // Starts off with a clock set to Time().
+ SimpleTestClock();
+ virtual ~SimpleTestClock();
+
+ virtual Time Now() OVERRIDE;
+
+ // Sets the current time forward by |delta|. Safe to call from any
+ // thread.
+ void Advance(TimeDelta delta);
+
+ private:
+ // Protects |now_|.
+ Lock lock_;
+
+ Time now_;
+};
+
+} // namespace base
+
+#endif // BASE_SIMPLE_TEST_CLOCK_H_