Abseil Common Libraries (C++) (grcp 依赖)
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37 lines
1.2 KiB
37 lines
1.2 KiB
// Copyright 2017 The Abseil Authors. |
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// |
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// Licensed under the Apache License, Version 2.0 (the "License"); |
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// you may not use this file except in compliance with the License. |
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// You may obtain a copy of the License at |
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// |
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// https://www.apache.org/licenses/LICENSE-2.0 |
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// |
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// Unless required by applicable law or agreed to in writing, software |
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// distributed under the License is distributed on an "AS IS" BASIS, |
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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// See the License for the specific language governing permissions and |
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// limitations under the License. |
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// |
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// This file is a Win32-specific part of spinlock_wait.cc |
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#include <windows.h> |
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#include <atomic> |
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#include "absl/base/internal/scheduling_mode.h" |
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extern "C" { |
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void AbslInternalSpinLockDelay(std::atomic<uint32_t>* /* lock_word */, |
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uint32_t /* value */, int loop, |
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absl::base_internal::SchedulingMode /* mode */) { |
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if (loop == 0) { |
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} else if (loop == 1) { |
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Sleep(0); |
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} else { |
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Sleep(absl::base_internal::SpinLockSuggestedDelayNS(loop) / 1000000); |
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} |
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} |
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void AbslInternalSpinLockWake(std::atomic<uint32_t>* /* lock_word */, |
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bool /* all */) {} |
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} // extern "C"
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