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/*
* Copyright (C) 2008-2019 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.
* 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 <wtf/HashSet.h>
#include <wtf/Hasher.h>
#include <wtf/RetainPtr.h>
#include <wtf/ThreadSafeRefCounted.h>
#include <wtf/text/WTFString.h>
#if PLATFORM(COCOA)
OBJC_CLASS NSRunLoop;
#endif
namespace WTF {
class SchedulePair : public ThreadSafeRefCounted<SchedulePair> {
public:
static Ref<SchedulePair> create(CFRunLoopRef runLoop, CFStringRef mode) { return adoptRef(*new SchedulePair(runLoop, mode)); }
#if PLATFORM(COCOA)
static Ref<SchedulePair> create(NSRunLoop* runLoop, CFStringRef mode) { return adoptRef(*new SchedulePair(runLoop, mode)); }
NSRunLoop* nsRunLoop() const { return m_nsRunLoop.get(); }
#endif
CFRunLoopRef runLoop() const { return m_runLoop.get(); }
CFStringRef mode() const { return m_mode.get(); }
WTF_EXPORT_PRIVATE bool operator==(const SchedulePair& other) const;
private:
SchedulePair(CFRunLoopRef runLoop, CFStringRef mode)
: m_runLoop(runLoop)
{
if (mode)
m_mode = adoptCF(CFStringCreateCopy(nullptr, mode));
}
#if PLATFORM(COCOA)
WTF_EXPORT_PRIVATE SchedulePair(NSRunLoop*, CFStringRef);
RetainPtr<NSRunLoop> m_nsRunLoop;
#endif
RetainPtr<CFRunLoopRef> m_runLoop;
RetainPtr<CFStringRef> m_mode;
};
inline void add(Hasher& hasher, const SchedulePair& pair)
{
// FIXME: Hashing a CFHash here is unfortunate.
add(hasher, pair.runLoop(), pair.mode() ? CFHash(pair.mode()) : 0);
}
struct SchedulePairHash {
static unsigned hash(const SchedulePair* pair)
{
return computeHash(*pair);
}
static unsigned hash(const RefPtr<SchedulePair>& pair)
{
return computeHash(*pair);
}
static bool equal(const SchedulePair* a, const RefPtr<SchedulePair>& b) { return a == b; }
static bool equal(const RefPtr<SchedulePair>& a, const RefPtr<SchedulePair>& b) { return a == b; }
static bool equal(const RefPtr<SchedulePair>& a, const SchedulePair* b) { return a == b; }
static constexpr bool safeToCompareToEmptyOrDeleted = true;
};
typedef UncheckedKeyHashSet<RefPtr<SchedulePair>, SchedulePairHash> SchedulePairHashSet;
} // namespace WTF
using WTF::SchedulePair;
using WTF::SchedulePairHashSet;
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