mirror of
https://github.com/chromium/crashpad.git
synced 2024-12-31 01:43:03 +08:00
f16e4eb9ff
This uses the naïve implementation originally written https://codereview.chromium.org/807973002/#ps180001. Bug: crashpad:192 Change-Id: Id00908dafb8886d6163a8b17213d3b7c33b81963 Reviewed-on: https://chromium-review.googlesource.com/606998 Commit-Queue: Robert Sesek <rsesek@chromium.org> Reviewed-by: Mark Mentovai <mark@chromium.org>
49 lines
1.8 KiB
C++
49 lines
1.8 KiB
C++
// Copyright 2014 The Crashpad Authors. All rights reserved.
|
||
//
|
||
// 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 system’s 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
|
||
//! clock’s resolution, successive calls to this function will result in a
|
||
//! series of increasing values.
|
||
//!
|
||
//! \return The value of the system’s 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_
|