14b43beb7c
TBR=niklas.enbom@webrtc.org Review URL: https://webrtc-codereview.appspot.com/915006 git-svn-id: http://webrtc.googlecode.com/svn/trunk@2963 4adac7df-926f-26a2-2b94-8c16560cd09d
67 lines
1.9 KiB
C++
67 lines
1.9 KiB
C++
/*
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* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef SRC_SYSTEM_WRAPPERS_SOURCE_CPU_MEASUREMENT_HARNESS_H_
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#define SRC_SYSTEM_WRAPPERS_SOURCE_CPU_MEASUREMENT_HARNESS_H_
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#include "system_wrappers/interface/scoped_ptr.h"
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namespace webrtc {
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class CpuWrapper;
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class EventWrapper;
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class ThreadWrapper;
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// This abstract class provides an interface that should be passed to
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// CpuMeasurementHarness. CpuMeasurementHarness will call it with the
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// frequency requested and measure the CPU usage for all calls.
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class CpuTarget {
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public:
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// Callback function for which the CPU usage should be calculated.
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virtual bool DoWork() = 0;
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protected:
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CpuTarget() {}
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virtual ~CpuTarget() {}
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};
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class CpuMeasurementHarness {
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public:
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static CpuMeasurementHarness* Create(CpuTarget* target,
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int work_period_ms,
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int work_iterations_per_period,
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int duration_ms);
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~CpuMeasurementHarness();
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bool Run();
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int AverageCpu();
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protected:
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CpuMeasurementHarness(CpuTarget* target, int work_period_ms,
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int work_iterations_per_period, int duration_ms);
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private:
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bool WaitForCpuInit();
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void Measure();
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bool DoWork();
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CpuTarget* cpu_target_;
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const int work_period_ms_;
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const int work_iterations_per_period_;
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const int duration_ms_;
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int cpu_sum_;
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int cpu_iterations_;
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scoped_ptr<CpuWrapper> cpu_;
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scoped_ptr<EventWrapper> event_;
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};
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} // namespace webrtc
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#endif // SRC_SYSTEM_WRAPPERS_SOURCE_CPU_MEASUREMENT_HARNESS_H_
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