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https://github.com/shadps4-emu/shadPS4.git
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44 lines
1.1 KiB
C++
44 lines
1.1 KiB
C++
// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include "common/native_clock.h"
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#include "common/rdtsc.h"
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#include "common/uint128.h"
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#ifdef _WIN64
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#include <pthread_time.h>
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#else
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#include <time.h>
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#endif
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namespace Common {
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NativeClock::NativeClock()
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: rdtsc_frequency{EstimateRDTSCFrequency()},
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ns_rdtsc_factor{GetFixedPoint64Factor(std::nano::den, rdtsc_frequency)},
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us_rdtsc_factor{GetFixedPoint64Factor(std::micro::den, rdtsc_frequency)},
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ms_rdtsc_factor{GetFixedPoint64Factor(std::milli::den, rdtsc_frequency)} {}
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u64 NativeClock::GetTimeNS() const {
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return MultiplyHigh(GetUptime(), ns_rdtsc_factor);
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}
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u64 NativeClock::GetTimeUS() const {
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return MultiplyHigh(GetUptime(), us_rdtsc_factor);
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}
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u64 NativeClock::GetTimeMS() const {
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return MultiplyHigh(GetUptime(), ms_rdtsc_factor);
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}
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u64 NativeClock::GetUptime() const {
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return FencedRDTSC();
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}
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u64 NativeClock::GetProcessTimeUS() const {
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timespec ret;
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clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &ret);
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return ret.tv_nsec / 1000 + ret.tv_sec * 1000000;
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}
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} // namespace Common
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