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/*
* Copyright (C) 2011 Igalia S.L.
* Copyright (C) 2010 Apple Inc. All rights reserved.
* Portions Copyright (c) 2010 Motorola Mobility, Inc. All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. 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 INC. 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.
*/
#include "config.h"
#include "WorkQueue.h"
#include <glib.h>
#include <string.h>
namespace WTF {
static const size_t kVisualStudioThreadNameLimit = 31;
void WorkQueue::platformInitialize(const char* name, Type, QOS)
{
// This name can be com.apple.WebKit.ProcessLauncher or com.apple.CoreIPC.ReceiveQueue.
// We are using those names for the thread name, but both are longer than 31 characters,
// which is the limit of Visual Studio for thread names.
// When log is enabled createThread() will assert instead of truncate the name, so we need
// to make sure we don't use a name longer than 31 characters.
const char* threadName = g_strrstr(name, ".");
if (threadName)
threadName++;
else
threadName = name;
if (strlen(threadName) > kVisualStudioThreadNameLimit)
threadName += strlen(threadName) - kVisualStudioThreadNameLimit;
LockHolder locker(m_initializeRunLoopConditionMutex);
m_workQueueThread = createThread(threadName, [this] {
{
LockHolder locker(m_initializeRunLoopConditionMutex);
m_runLoop = &RunLoop::current();
m_initializeRunLoopCondition.notifyOne();
}
m_runLoop->run();
{
LockHolder locker(m_terminateRunLoopConditionMutex);
m_runLoop = nullptr;
m_terminateRunLoopCondition.notifyOne();
}
});
m_initializeRunLoopCondition.wait(m_initializeRunLoopConditionMutex);
}
void WorkQueue::platformInvalidate()
{
{
LockHolder locker(m_terminateRunLoopConditionMutex);
if (m_runLoop) {
m_runLoop->stop();
m_terminateRunLoopCondition.wait(m_terminateRunLoopConditionMutex);
}
}
if (m_workQueueThread) {
detachThread(m_workQueueThread);
m_workQueueThread = 0;
}
}
void WorkQueue::dispatch(std::function<void ()> function)
{
RefPtr<WorkQueue> protector(this);
m_runLoop->dispatch([protector, function] { function(); });
}
class DispatchAfterContext {
WTF_MAKE_FAST_ALLOCATED;
public:
DispatchAfterContext(WorkQueue& queue, std::function<void ()> function)
: m_queue(&queue)
, m_function(WTFMove(function))
{
}
~DispatchAfterContext()
{
}
void dispatch()
{
m_function();
}
private:
RefPtr<WorkQueue> m_queue;
std::function<void ()> m_function;
};
void WorkQueue::dispatchAfter(std::chrono::nanoseconds duration, std::function<void ()> function)
{
GRefPtr<GSource> source = adoptGRef(g_timeout_source_new(std::chrono::duration_cast<std::chrono::milliseconds>(duration).count()));
g_source_set_name(source.get(), "[WebKit] WorkQueue dispatchAfter");
std::unique_ptr<DispatchAfterContext> context = std::make_unique<DispatchAfterContext>(*this, WTFMove(function));
g_source_set_callback(source.get(), [](gpointer userData) -> gboolean {
std::unique_ptr<DispatchAfterContext> context(static_cast<DispatchAfterContext*>(userData));
context->dispatch();
return G_SOURCE_REMOVE;
}, context.release(), nullptr);
g_source_attach(source.get(), m_runLoop->mainContext());
}
}
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