fc8dc48020
git-subtree-dir: third_party/abseil_cpp git-subtree-mainline:ffb2ae54begit-subtree-split:768eb2ca28
37 lines
1.2 KiB
C++
37 lines
1.2 KiB
C++
// Copyright 2017 The Abseil 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
|
|
//
|
|
// https://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.
|
|
//
|
|
// This file is a Win32-specific part of spinlock_wait.cc
|
|
|
|
#include <windows.h>
|
|
#include <atomic>
|
|
#include "absl/base/internal/scheduling_mode.h"
|
|
|
|
extern "C" {
|
|
|
|
void AbslInternalSpinLockDelay(std::atomic<uint32_t>* /* lock_word */,
|
|
uint32_t /* value */, int loop,
|
|
absl::base_internal::SchedulingMode /* mode */) {
|
|
if (loop == 0) {
|
|
} else if (loop == 1) {
|
|
Sleep(0);
|
|
} else {
|
|
Sleep(absl::base_internal::SpinLockSuggestedDelayNS(loop) / 1000000);
|
|
}
|
|
}
|
|
|
|
void AbslInternalSpinLockWake(std::atomic<uint32_t>* /* lock_word */,
|
|
bool /* all */) {}
|
|
|
|
} // extern "C"
|