4ed75287ae
This breaks a bunch of circular dependencies between tools and gm and bench. BUG=skia: R=tfarina@chromium.org, mtklein@google.com Author: mtklein@chromium.org Review URL: https://codereview.chromium.org/344213003
52 lines
1.4 KiB
C++
52 lines
1.4 KiB
C++
/*
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* Copyright 2011 Google Inc.
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*
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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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*/
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#include "SysTimer_posix.h"
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static double interval_in_ms(timespec start_clock, timespec end_clock)
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{
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double duration_clock;
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if ((end_clock.tv_nsec - start_clock.tv_nsec) < 0) {
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duration_clock = (end_clock.tv_sec - start_clock.tv_sec - 1) * 1000;
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duration_clock += (1000000000 + end_clock.tv_nsec - start_clock.tv_nsec) / 1000000.0;
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} else {
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duration_clock = (end_clock.tv_sec - start_clock.tv_sec) * 1000;
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duration_clock += (end_clock.tv_nsec - start_clock.tv_nsec) / 1000000.0;
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}
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return duration_clock;
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}
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void SysTimer::startWall() {
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if (-1 == clock_gettime(CLOCK_MONOTONIC, &fWall)) {
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timespec none = {0, 0};
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fWall = none;
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}
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}
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void SysTimer::startCpu() {
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if (-1 == clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &fCpu)) {
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timespec none = {0, 0};
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fCpu = none;
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}
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}
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double SysTimer::endCpu() {
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timespec end_cpu;
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if (-1 == clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &end_cpu)) {
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timespec none = {0, 0};
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end_cpu = none;
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}
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return interval_in_ms(fCpu, end_cpu);
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}
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double SysTimer::endWall() {
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timespec end_wall;
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if (-1 == clock_gettime(CLOCK_MONOTONIC, &end_wall)) {
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timespec none = {0, 0};
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end_wall = none;
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}
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return interval_in_ms(fWall, end_wall);
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}
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