fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
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28 lines
712 B
28 lines
712 B
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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#pragma once
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#include <folly/Portability.h>
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#include <cstdint>
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#ifdef _MSC_VER
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#include <intrin.h>
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#endif
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namespace folly {
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inline void asm_volatile_pause() {
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#if defined(_MSC_VER) && (defined(_M_IX86) || defined(_M_X64))
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::_mm_pause();
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#elif defined(__i386__) || FOLLY_X64
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asm volatile("pause");
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#elif FOLLY_AARCH64 || defined(__arm__)
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asm volatile("yield");
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#elif FOLLY_PPC64
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asm volatile("or 27,27,27");
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#endif
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}
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} // namespace folly
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