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/*
* Copyright (C) 2007, 2008, 2010, 2016 Apple Inc. All rights reserved.
* Copyright (C) 2007 Justin Haygood (jhaygood@reaktix.com)
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of Apple Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <stdint.h>
#include <wtf/Forward.h>
#include <wtf/Function.h>
#include <wtf/ThreadAssertions.h>
#include <wtf/ThreadingPrimitives.h>
namespace WTF {
class PrintStream;
class Thread;
// Must be called from the main thread.
WTF_EXPORT_PRIVATE void initializeMainThread();
WTF_EXPORT_PRIVATE void callOnMainThread(Function<void()>&&);
WTF_EXPORT_PRIVATE void callOnMainThreadAndWait(NOESCAPE Function<void()>&&);
WTF_EXPORT_PRIVATE void ensureOnMainThread(Function<void()>&&); // Sync if called on main thread, async otherwise.
#if PLATFORM(COCOA)
WTF_EXPORT_PRIVATE void dispatchAsyncOnMainThreadWithWebThreadLockIfNeeded(void (^block)());
WTF_EXPORT_PRIVATE void callOnWebThreadOrDispatchAsyncOnMainThread(void (^block)());
#endif
WTF_EXPORT_PRIVATE bool isMainThread();
WTF_EXPORT_PRIVATE bool canCurrentThreadAccessThreadLocalData(Thread&);
WTF_EXPORT_PRIVATE bool isMainRunLoop();
WTF_EXPORT_PRIVATE void callOnMainRunLoop(Function<void()>&&);
WTF_EXPORT_PRIVATE void callOnMainRunLoopAndWait(NOESCAPE Function<void()>&&);
WTF_EXPORT_PRIVATE void ensureOnMainRunLoop(Function<void()>&&); // Sync if called on main run loop, async otherwise.
#if USE(WEB_THREAD)
WTF_EXPORT_PRIVATE bool isWebThread();
WTF_EXPORT_PRIVATE bool isUIThread();
WTF_EXPORT_PRIVATE void initializeWebThread();
WTF_EXPORT_PRIVATE void initializeApplicationUIThread();
#else
inline bool isWebThread() { return isMainThread(); }
inline bool isUIThread() { return isMainThread(); }
#endif // USE(WEB_THREAD)
WTF_EXPORT_PRIVATE bool isMainThreadOrGCThread();
// NOTE: these functions are internal to the callOnMainThread implementation.
void initializeMainThreadPlatform();
// To be used with WTF_REQUIRES_CAPABILITY(mainThread). Symbol is undefined.
extern NamedAssertion& mainThread;
inline void assertIsMainThread() WTF_ASSERTS_ACQUIRED_CAPABILITY(mainThread) { ASSERT(isMainThread()); }
// To be used with WTF_REQUIRES_CAPABILITY(mainRunLoop). Symbol is undefined.
extern NamedAssertion& mainRunLoop;
inline void assertIsMainRunLoop() WTF_ASSERTS_ACQUIRED_CAPABILITY(mainRunLoop) { ASSERT(isMainRunLoop()); }
enum class DestructionThread : uint8_t { Any, Main, MainRunLoop };
} // namespace WTF
using WTF::assertIsMainRunLoop;
using WTF::assertIsMainThread;
using WTF::callOnMainRunLoop;
using WTF::callOnMainRunLoopAndWait;
using WTF::callOnMainThread;
using WTF::callOnMainThreadAndWait;
using WTF::canCurrentThreadAccessThreadLocalData;
using WTF::ensureOnMainRunLoop;
using WTF::ensureOnMainThread;
using WTF::isMainRunLoop;
using WTF::isMainThread;
using WTF::isMainThreadOrGCThread;
using WTF::isUIThread;
using WTF::isWebThread;
using WTF::mainRunLoop;
using WTF::mainThread;
#if PLATFORM(COCOA)
using WTF::dispatchAsyncOnMainThreadWithWebThreadLockIfNeeded;
using WTF::callOnWebThreadOrDispatchAsyncOnMainThread;
#endif
#if USE(WEB_THREAD)
using WTF::initializeWebThread;
using WTF::initializeApplicationUIThread;
#endif
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