haikuwebkit/Source/WTF/wtf/cocoa/WorkQueueCocoa.cpp

97 lines
3.4 KiB
C++

/*
* Copyright (C) 2010 Apple 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 <wtf/WorkQueue.h>
#include <wtf/BlockPtr.h>
#include <wtf/Ref.h>
namespace WTF {
namespace {
struct DispatchWorkItem {
WTF_MAKE_STRUCT_FAST_ALLOCATED;
Ref<WorkQueue> m_workQueue;
Function<void()> m_function;
void operator()() { m_function(); }
};
}
template<typename T> static void dispatchWorkItem(void* dispatchContext)
{
T* item = reinterpret_cast<T*>(dispatchContext);
(*item)();
delete item;
}
void WorkQueue::dispatch(Function<void()>&& function)
{
dispatch_async_f(m_dispatchQueue.get(), new DispatchWorkItem { makeRef(*this), WTFMove(function) }, dispatchWorkItem<DispatchWorkItem>);
}
void WorkQueue::dispatchAfter(Seconds duration, Function<void()>&& function)
{
dispatch_after_f(dispatch_time(DISPATCH_TIME_NOW, duration.nanosecondsAs<int64_t>()), m_dispatchQueue.get(), new DispatchWorkItem { makeRef(*this), WTFMove(function) }, dispatchWorkItem<DispatchWorkItem>);
}
void WorkQueue::dispatchSync(Function<void()>&& function)
{
dispatch_sync_f(m_dispatchQueue.get(), new Function<void()> { WTFMove(function) }, dispatchWorkItem<Function<void()>>);
}
Ref<WorkQueue> WorkQueue::constructMainWorkQueue()
{
return adoptRef(*new WorkQueue(dispatch_get_main_queue()));
}
WorkQueue::WorkQueue(OSObjectPtr<dispatch_queue_t>&& dispatchQueue)
: m_dispatchQueue(WTFMove(dispatchQueue))
{
}
void WorkQueue::platformInitialize(const char* name, Type type, QOS qos)
{
dispatch_queue_attr_t attr = type == Type::Concurrent ? DISPATCH_QUEUE_CONCURRENT : DISPATCH_QUEUE_SERIAL;
attr = dispatch_queue_attr_make_with_qos_class(attr, Thread::dispatchQOSClass(qos), 0);
m_dispatchQueue = adoptOSObject(dispatch_queue_create(name, attr));
dispatch_set_context(m_dispatchQueue.get(), this);
}
void WorkQueue::platformInvalidate()
{
}
void WorkQueue::concurrentApply(size_t iterations, WTF::Function<void(size_t index)>&& function)
{
dispatch_apply(iterations, dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), makeBlockPtr([function = WTFMove(function)](size_t index) {
function(index);
}).get());
}
}