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Unified Diff: tools/timer/SysTimer_mach.cpp

Issue 346753003: Revert of Move BenchTimer to tools as Timer (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Created 6 years, 6 months ago
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Index: tools/timer/SysTimer_mach.cpp
diff --git a/tools/timer/SysTimer_mach.cpp b/tools/timer/SysTimer_mach.cpp
deleted file mode 100644
index aca12dee5203afb2109aa47d6d7b8a23c183e129..0000000000000000000000000000000000000000
--- a/tools/timer/SysTimer_mach.cpp
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- * Copyright 2011 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-#include "SysTimer_mach.h"
-
-static time_value_t mac_cpu_time() {
- mach_port_t task = mach_task_self();
- if (task == MACH_PORT_NULL) {
- time_value_t none = {0, 0};
- return none;
- }
-
- task_thread_times_info thread_info_data;
- mach_msg_type_number_t thread_info_count = TASK_THREAD_TIMES_INFO_COUNT;
- if (KERN_SUCCESS != task_info(task,
- TASK_THREAD_TIMES_INFO,
- reinterpret_cast<task_info_t>(&thread_info_data),
- &thread_info_count)) {
- time_value_t none = {0, 0};
- return none;
- }
-
- time_value_add(&thread_info_data.user_time, &thread_info_data.system_time)
- return thread_info_data.user_time;
-}
-
-static double interval_in_ms(time_value_t start_clock, time_value_t end_clock) {
- double duration_clock;
- if ((end_clock.microseconds - start_clock.microseconds) < 0) {
- duration_clock = (end_clock.seconds - start_clock.seconds-1) * 1000;
- duration_clock += (1000000 + end_clock.microseconds - start_clock.microseconds) / 1000.0;
- } else {
- duration_clock = (end_clock.seconds - start_clock.seconds) * 1000;
- duration_clock += (end_clock.microseconds - start_clock.microseconds) / 1000.0;
- }
- return duration_clock;
-}
-
-void SysTimer::startWall() {
- fStartWall = mach_absolute_time();
-}
-
-void SysTimer::startCpu() {
- fStartCpu = mac_cpu_time();
-}
-
-double SysTimer::endCpu() {
- time_value_t end_cpu = mac_cpu_time();
- return interval_in_ms(fStartCpu, end_cpu);
-}
-
-double SysTimer::endWall() {
- uint64_t end_wall = mach_absolute_time();
-
- uint64_t elapsed = end_wall - fStartWall;
- mach_timebase_info_data_t sTimebaseInfo;
- if (KERN_SUCCESS != mach_timebase_info(&sTimebaseInfo)) {
- return 0;
- } else {
- uint64_t elapsedNano = elapsed * sTimebaseInfo.numer / sTimebaseInfo.denom;
- return elapsedNano / 1000000.0;
- }
-}
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