mirror of
https://github.com/darlinghq/darling-WTF.git
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120 lines
4.2 KiB
C++
Executable File
120 lines
4.2 KiB
C++
Executable File
/*
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* Copyright (C) 2007, 2008, 2010, 2016 Apple Inc. All rights reserved.
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* Copyright (C) 2007 Justin Haygood (jhaygood@reaktix.com)
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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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*
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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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* 3. Neither the name of Apple Inc. ("Apple") nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef MainThread_h
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#define MainThread_h
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#include <functional>
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#include <stdint.h>
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#include <wtf/Function.h>
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#include <wtf/Optional.h>
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namespace WTF {
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class PrintStream;
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typedef uint32_t ThreadIdentifier;
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// Must be called from the main thread.
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WTF_EXPORT_PRIVATE void initializeMainThread();
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WTF_EXPORT_PRIVATE void callOnMainThread(Function<void ()>&&);
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#if PLATFORM(COCOA)
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WTF_EXPORT_PRIVATE void callOnWebThreadOrDispatchAsyncOnMainThread(void (^block)());
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#endif
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WTF_EXPORT_PRIVATE void setMainThreadCallbacksPaused(bool paused);
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WTF_EXPORT_PRIVATE bool isMainThread();
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WTF_EXPORT_PRIVATE bool canAccessThreadLocalDataForThread(ThreadIdentifier);
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#if USE(WEB_THREAD)
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WTF_EXPORT_PRIVATE bool isWebThread();
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WTF_EXPORT_PRIVATE bool isUIThread();
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WTF_EXPORT_PRIVATE void initializeWebThread();
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WTF_EXPORT_PRIVATE void initializeApplicationUIThreadIdentifier();
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WTF_EXPORT_PRIVATE void initializeWebThreadIdentifier();
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void initializeWebThreadPlatform();
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#else
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inline bool isWebThread() { return isMainThread(); }
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inline bool isUIThread() { return isMainThread(); }
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#endif // USE(WEB_THREAD)
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WTF_EXPORT_PRIVATE void initializeGCThreads();
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enum class GCThreadType {
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Main,
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Helper
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};
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void printInternal(PrintStream&, GCThreadType);
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WTF_EXPORT_PRIVATE void registerGCThread(GCThreadType);
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WTF_EXPORT_PRIVATE std::optional<GCThreadType> mayBeGCThread();
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WTF_EXPORT_PRIVATE bool isMainThreadOrGCThread();
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// NOTE: these functions are internal to the callOnMainThread implementation.
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void initializeMainThreadPlatform();
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void scheduleDispatchFunctionsOnMainThread();
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void dispatchFunctionsFromMainThread();
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#if OS(DARWIN) && !PLATFORM(EFL) && !PLATFORM(GTK)
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#if !USE(WEB_THREAD)
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// This version of initializeMainThread sets up the main thread as corresponding
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// to the process's main thread, and not necessarily the thread that calls this
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// function. It should only be used as a legacy aid for Mac WebKit.
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WTF_EXPORT_PRIVATE void initializeMainThreadToProcessMainThread();
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#endif // !USE(WEB_THREAD)
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void initializeMainThreadToProcessMainThreadPlatform();
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#endif
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} // namespace WTF
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using WTF::GCThreadType;
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using WTF::callOnMainThread;
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using WTF::canAccessThreadLocalDataForThread;
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using WTF::isMainThread;
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using WTF::isMainThreadOrGCThread;
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using WTF::isUIThread;
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using WTF::isWebThread;
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using WTF::mayBeGCThread;
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using WTF::setMainThreadCallbacksPaused;
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#if PLATFORM(COCOA)
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using WTF::callOnWebThreadOrDispatchAsyncOnMainThread;
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#endif
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#if USE(WEB_THREAD)
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using WTF::initializeWebThread;
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using WTF::initializeApplicationUIThreadIdentifier;
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using WTF::initializeWebThreadIdentifier;
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#endif
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#endif // MainThread_h
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