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// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/time/time.h"
#include <zircon/syscalls.h>
#include "base/fuchsia/fuchsia_logging.h"
#include "base/time/time_override.h"
namespace base {
// Time -----------------------------------------------------------------------
namespace subtle {
Time TimeNowIgnoringOverride() {
zx_time_t nanos_since_unix_epoch;
zx_status_t status = zx_clock_get(ZX_CLOCK_UTC, &nanos_since_unix_epoch);
ZX_CHECK(status == ZX_OK, status);
// The following expression will overflow in the year 289938 A.D.:
return Time::FromZxTime(nanos_since_unix_epoch);
}
Time TimeNowFromSystemTimeIgnoringOverride() {
// Just use TimeNowIgnoringOverride() because it returns the system time.
return TimeNowIgnoringOverride();
}
} // namespace subtle
// TimeTicks ------------------------------------------------------------------
namespace subtle {
TimeTicks TimeTicksNowIgnoringOverride() {
const zx_time_t nanos_since_boot = zx_clock_get_monotonic();
CHECK(nanos_since_boot != 0);
return TimeTicks::FromZxTime(nanos_since_boot);
}
} // namespace subtle
// static
TimeDelta TimeDelta::FromZxDuration(zx_duration_t nanos) {
return TimeDelta::FromNanoseconds(nanos);
}
zx_duration_t TimeDelta::ToZxDuration() const {
return InNanoseconds();
}
// static
Time Time::FromZxTime(zx_time_t nanos_since_unix_epoch) {
return Time::UnixEpoch() + TimeDelta::FromNanoseconds(nanos_since_unix_epoch);
}
zx_time_t Time::ToZxTime() const {
return (*this - Time::UnixEpoch()).InNanoseconds();
}
// static
TimeTicks::Clock TimeTicks::GetClock() {
return Clock::FUCHSIA_ZX_CLOCK_MONOTONIC;
}
// static
bool TimeTicks::IsHighResolution() {
return true;
}
// static
bool TimeTicks::IsConsistentAcrossProcesses() {
return true;
}
// static
TimeTicks TimeTicks::FromZxTime(zx_time_t nanos_since_boot) {
return TimeTicks() + TimeDelta::FromNanoseconds(nanos_since_boot);
}
zx_time_t TimeTicks::ToZxTime() const {
return (*this - TimeTicks()).InNanoseconds();
}
// ThreadTicks ----------------------------------------------------------------
namespace subtle {
ThreadTicks ThreadTicksNowIgnoringOverride() {
zx_time_t nanos_since_thread_started;
zx_status_t status =
zx_clock_get(ZX_CLOCK_THREAD, &nanos_since_thread_started);
ZX_CHECK(status == ZX_OK, status);
DCHECK(nanos_since_thread_started != 0);
return ThreadTicks() + TimeDelta::FromNanoseconds(nanos_since_thread_started);
}
} // namespace subtle
} // namespace base
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