crashpad/util/misc/clock.h
Mark Mentovai 6278690abe Update copyright boilerplate, 2022 edition (Crashpad)
sed -i '' -E -e 's/Copyright (.+) The Crashpad Authors\. All rights reserved\.$/Copyright \1 The Crashpad Authors/' $(git grep -El 'Copyright (.+) The Crashpad Authors\. All rights reserved\.$')

Bug: chromium:1098010
Change-Id: I8d6138469ddbe3d281a5d83f64cf918ec2491611
Reviewed-on: https://chromium-review.googlesource.com/c/crashpad/crashpad/+/3878262
Reviewed-by: Joshua Peraza <jperaza@chromium.org>
Commit-Queue: Mark Mentovai <mark@chromium.org>
2022-09-06 23:54:07 +00:00

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// Copyright 2014 The Crashpad Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef CRASHPAD_UTIL_MISC_CLOCK_H_
#define CRASHPAD_UTIL_MISC_CLOCK_H_
#include <stdint.h>
#include "build/build_config.h"
namespace crashpad {
//! \brief Returns the value of the systems monotonic clock.
//!
//! The monotonic clock is a tick counter whose epoch is unspecified. It is a
//! monotonically-increasing clock that cannot be set, and never jumps backwards
//! on a running system. The monotonic clock may stop while the system is
//! sleeping, and it may be reset when the system starts up. This clock is
//! suitable for computing durations of events. Subject to the underlying
//! clocks resolution, successive calls to this function will result in a
//! series of increasing values.
//!
//! \return The value of the systems monotonic clock, in nanoseconds.
uint64_t ClockMonotonicNanoseconds();
//! \brief Sleeps for the specified duration.
//!
//! \param[in] nanoseconds The number of nanoseconds to sleep. The actual sleep
//! may be slightly longer due to latencies and timer resolution.
//!
//! On POSIX, this function is resilient against the underlying `nanosleep()`
//! system call being interrupted by a signal.
void SleepNanoseconds(uint64_t nanoseconds);
} // namespace crashpad
#endif // CRASHPAD_UTIL_MISC_CLOCK_H_