33 lines
1.1 KiB
C
33 lines
1.1 KiB
C
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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef BASE_TIME_DEFAULT_TICK_CLOCK_H_
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#define BASE_TIME_DEFAULT_TICK_CLOCK_H_
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#include "base/base_export.h"
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#include "base/time/tick_clock.h"
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namespace base {
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// DefaultTickClock is a TickClock implementation that uses TimeTicks::Now().
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// This is typically used by components that expose a SetTickClockForTesting().
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// Note: Overriding Time/TimeTicks altogether via
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// TaskEnvironment::TimeSource::MOCK_TIME is now the preferred of
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// overriding time in unit tests. As such, there shouldn't be many new use cases
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// for TickClock/DefaultTickClock anymore.
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class BASE_EXPORT DefaultTickClock : public TickClock {
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public:
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~DefaultTickClock() override;
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// Simply returns TimeTicks::Now().
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TimeTicks NowTicks() const override;
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// Returns a shared instance of DefaultTickClock. This is thread-safe.
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static const DefaultTickClock* GetInstance();
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};
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} // namespace base
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#endif // BASE_TIME_DEFAULT_TICK_CLOCK_H_
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