99 lines
2.5 KiB
C++
99 lines
2.5 KiB
C++
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// Copyright 2017 The Chromium Authors
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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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#include "base/time/time.h"
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#include <threads.h>
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#include <zircon/syscalls.h>
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#include <zircon/threads.h>
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#include "base/check_op.h"
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#include "base/fuchsia/fuchsia_logging.h"
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#include "base/time/time_override.h"
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namespace base {
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// Time -----------------------------------------------------------------------
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namespace subtle {
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Time TimeNowIgnoringOverride() {
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timespec ts;
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int status = timespec_get(&ts, TIME_UTC);
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CHECK(status != 0);
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return Time::FromTimeSpec(ts);
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}
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Time TimeNowFromSystemTimeIgnoringOverride() {
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// Just use TimeNowIgnoringOverride() because it returns the system time.
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return TimeNowIgnoringOverride();
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}
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} // namespace subtle
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// TimeTicks ------------------------------------------------------------------
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namespace subtle {
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TimeTicks TimeTicksNowIgnoringOverride() {
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const zx_time_t nanos_since_boot = zx_clock_get_monotonic();
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CHECK_NE(0, nanos_since_boot);
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return TimeTicks::FromZxTime(nanos_since_boot);
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}
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} // namespace subtle
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// static
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TimeDelta TimeDelta::FromZxDuration(zx_duration_t nanos) {
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return Nanoseconds(nanos);
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}
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zx_duration_t TimeDelta::ToZxDuration() const {
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return InNanoseconds();
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}
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// static
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Time Time::FromZxTime(zx_time_t nanos_since_unix_epoch) {
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return UnixEpoch() + Nanoseconds(nanos_since_unix_epoch);
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}
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zx_time_t Time::ToZxTime() const {
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return (*this - UnixEpoch()).InNanoseconds();
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}
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// static
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TimeTicks::Clock TimeTicks::GetClock() {
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return Clock::FUCHSIA_ZX_CLOCK_MONOTONIC;
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}
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// static
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bool TimeTicks::IsHighResolution() {
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return true;
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}
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// static
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bool TimeTicks::IsConsistentAcrossProcesses() {
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return true;
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}
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// static
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TimeTicks TimeTicks::FromZxTime(zx_time_t nanos_since_boot) {
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return TimeTicks() + Nanoseconds(nanos_since_boot);
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}
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zx_time_t TimeTicks::ToZxTime() const {
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return (*this - TimeTicks()).InNanoseconds();
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}
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// ThreadTicks ----------------------------------------------------------------
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namespace subtle {
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ThreadTicks ThreadTicksNowIgnoringOverride() {
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zx_info_thread_stats_t info;
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zx_status_t status = zx_object_get_info(thrd_get_zx_handle(thrd_current()),
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ZX_INFO_THREAD_STATS, &info,
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sizeof(info), nullptr, nullptr);
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ZX_CHECK(status == ZX_OK, status);
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return ThreadTicks() + Nanoseconds(info.total_runtime);
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}
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} // namespace subtle
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} // namespace base
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