2017-12-29 05:56:29 +00:00
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/*
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* Copyright (C) 2017 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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2019-01-29 05:58:00 +00:00
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#include "ProcessIdentifier.h"
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2017-12-29 05:56:29 +00:00
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#include <wtf/MainThread.h>
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namespace WebCore {
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namespace Process {
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2021-05-30 16:11:40 +00:00
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static std::optional<ProcessIdentifier> globalIdentifier;
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2017-12-29 05:56:29 +00:00
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void setIdentifier(ProcessIdentifier processIdentifier)
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{
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2018-08-08 15:54:45 +00:00
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ASSERT(isUIThread());
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2017-12-29 05:56:29 +00:00
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globalIdentifier = processIdentifier;
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}
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ProcessIdentifier identifier()
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{
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static std::once_flag onceFlag;
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std::call_once(onceFlag, [] {
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if (!globalIdentifier)
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2019-01-29 17:50:53 +00:00
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globalIdentifier = ProcessIdentifier::generate();
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2017-12-29 05:56:29 +00:00
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});
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return *globalIdentifier;
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}
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} // namespace Process
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} // namespace WebCore
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