crashpad/util/misc/clock_posix.cc
Mark Mentovai 8f0636288a Use constexpr at namespace scope
This is essentially based on a search for “^const .*=”.

Change-Id: I9332c1f0cf7c891ba1ae373dc537f700f9a1d956
Reviewed-on: https://chromium-review.googlesource.com/585452
Reviewed-by: Leonard Mosescu <mosescu@chromium.org>
2017-07-29 01:06:52 +00:00

52 lines
1.4 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.
#include "util/misc/clock.h"
#include <time.h>
#include "base/logging.h"
#include "base/posix/eintr_wrapper.h"
#include "build/build_config.h"
namespace {
constexpr uint64_t kNanosecondsPerSecond = 1E9;
} // namespace
namespace crashpad {
#if !defined(OS_MACOSX)
uint64_t ClockMonotonicNanoseconds() {
timespec now;
int rv = clock_gettime(CLOCK_MONOTONIC, &now);
DPCHECK(rv == 0) << "clock_gettime";
return now.tv_sec * kNanosecondsPerSecond + now.tv_nsec;
}
#endif
void SleepNanoseconds(uint64_t nanoseconds) {
timespec sleep_time;
sleep_time.tv_sec = nanoseconds / kNanosecondsPerSecond;
sleep_time.tv_nsec = nanoseconds % kNanosecondsPerSecond;
int rv = HANDLE_EINTR(nanosleep(&sleep_time, &sleep_time));
DPCHECK(rv == 0) << "nanosleep";
}
} // namespace crashpad