97 lines
2.6 KiB
C++
97 lines
2.6 KiB
C++
// Copyright 2017 The Chromium Authors. All rights reserved.
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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 <zircon/syscalls.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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zx_time_t nanos_since_unix_epoch;
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zx_status_t status = zx_clock_get(ZX_CLOCK_UTC, &nanos_since_unix_epoch);
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ZX_CHECK(status == ZX_OK, status);
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// The following expression will overflow in the year 289938 A.D.:
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return Time::FromZxTime(nanos_since_unix_epoch);
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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(nanos_since_boot != 0);
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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 TimeDelta::FromNanoseconds(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 Time::UnixEpoch() + TimeDelta::FromNanoseconds(nanos_since_unix_epoch);
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}
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zx_time_t Time::ToZxTime() const {
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return (*this - Time::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() + TimeDelta::FromNanoseconds(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_time_t nanos_since_thread_started;
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zx_status_t status =
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zx_clock_get(ZX_CLOCK_THREAD, &nanos_since_thread_started);
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ZX_CHECK(status == ZX_OK, status);
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DCHECK(nanos_since_thread_started != 0);
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return ThreadTicks() + TimeDelta::FromNanoseconds(nanos_since_thread_started);
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}
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} // namespace subtle
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} // namespace base
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