mirror of
https://github.com/chromium/crashpad.git
synced 2024-12-27 15:32:10 +08:00
6278690abe
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>
57 lines
1.8 KiB
C++
57 lines
1.8 KiB
C++
// 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.
|
|
|
|
#include "util/misc/clock.h"
|
|
|
|
#include <windows.h>
|
|
#include <sys/types.h>
|
|
|
|
namespace {
|
|
|
|
LARGE_INTEGER QpcFrequencyInternal() {
|
|
LARGE_INTEGER frequency;
|
|
QueryPerformanceFrequency(&frequency);
|
|
return frequency;
|
|
}
|
|
|
|
int64_t QpcFrequency() {
|
|
static LARGE_INTEGER frequency = QpcFrequencyInternal();
|
|
return frequency.QuadPart;
|
|
}
|
|
|
|
} // namespace
|
|
|
|
namespace crashpad {
|
|
|
|
uint64_t ClockMonotonicNanoseconds() {
|
|
LARGE_INTEGER time;
|
|
QueryPerformanceCounter(&time);
|
|
int64_t frequency = QpcFrequency();
|
|
int64_t whole_seconds = time.QuadPart / frequency;
|
|
int64_t leftover_ticks = time.QuadPart % frequency;
|
|
constexpr int64_t kNanosecondsPerSecond = static_cast<const int64_t>(1E9);
|
|
return (whole_seconds * kNanosecondsPerSecond) +
|
|
((leftover_ticks * kNanosecondsPerSecond) / frequency);
|
|
}
|
|
|
|
void SleepNanoseconds(uint64_t nanoseconds) {
|
|
// This is both inaccurate (will be way too long for short sleeps) and
|
|
// incorrect (can sleep for less than requested). But it's what's available
|
|
// without implementing a busy loop.
|
|
constexpr uint64_t kNanosecondsPerMillisecond = static_cast<uint64_t>(1E6);
|
|
Sleep(static_cast<DWORD>(nanoseconds / kNanosecondsPerMillisecond));
|
|
}
|
|
|
|
} // namespace crashpad
|