59 lines
2.0 KiB
C++
59 lines
2.0 KiB
C++
/*
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* Copyright (c) 2017, Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#pragma once
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#include <memory>
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#define NSEC_PER_SEC (1000000000ULL)
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namespace OCLRT {
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class OSInterface;
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struct HardwareInfo;
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struct TimeStampData {
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uint64_t GPUTimeStamp; // GPU time in ns
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uint64_t CPUTimeinNS; // CPU time in ns
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};
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class OSTime {
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public:
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static std::unique_ptr<OSTime> create(OSInterface *osInterface);
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virtual ~OSTime() = default;
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virtual bool getCpuTime(uint64_t *timeStamp) = 0;
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virtual bool getCpuGpuTime(TimeStampData *pGpuCpuTime) = 0;
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virtual double getHostTimerResolution() const = 0;
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virtual double getDynamicDeviceTimerResolution(HardwareInfo const &hwInfo) const = 0;
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virtual uint64_t getCpuRawTimestamp() = 0;
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OSInterface *getOSInterface() const {
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return osInterface;
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}
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static double getDeviceTimerResolution(HardwareInfo const &hwInfo);
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protected:
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OSTime() {}
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OSInterface *osInterface = nullptr;
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};
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} // namespace OCLRT
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