1/* 2 * Copyright (C) 2008, 2013 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of Apple Inc. ("Apple") nor the names of 14 * its contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29#ifndef SchedulePair_h 30#define SchedulePair_h 31 32#include <wtf/HashSet.h> 33#include <wtf/RefCounted.h> 34#include <wtf/RetainPtr.h> 35#include <wtf/text/StringHash.h> 36#include <wtf/text/WTFString.h> 37 38#if USE(FOUNDATION) 39OBJC_CLASS NSRunLoop; 40#endif 41 42namespace WTF { 43 44class SchedulePair : public RefCounted<SchedulePair> { 45public: 46 static PassRefPtr<SchedulePair> create(CFRunLoopRef runLoop, CFStringRef mode) { return adoptRef(new SchedulePair(runLoop, mode)); } 47 48#if USE(FOUNDATION) && !USE(CFNETWORK) 49 static PassRefPtr<SchedulePair> create(NSRunLoop* runLoop, CFStringRef mode) { return adoptRef(new SchedulePair(runLoop, mode)); } 50 NSRunLoop* nsRunLoop() const { return m_nsRunLoop.get(); } 51#endif 52 53 CFRunLoopRef runLoop() const { return m_runLoop.get(); } 54 CFStringRef mode() const { return m_mode.get(); } 55 56 WTF_EXPORT_PRIVATE bool operator==(const SchedulePair& other) const; 57 58private: 59 SchedulePair(CFRunLoopRef runLoop, CFStringRef mode) 60 : m_runLoop(runLoop) 61 { 62 if (mode) 63 m_mode = adoptCF(CFStringCreateCopy(0, mode)); 64 } 65 66#if USE(FOUNDATION) && !USE(CFNETWORK) 67 WTF_EXPORT_PRIVATE SchedulePair(NSRunLoop*, CFStringRef); 68 RetainPtr<NSRunLoop*> m_nsRunLoop; 69#endif 70 71 RetainPtr<CFRunLoopRef> m_runLoop; 72 RetainPtr<CFStringRef> m_mode; 73}; 74 75struct SchedulePairHash { 76 static unsigned hash(const RefPtr<SchedulePair>& pair) 77 { 78 uintptr_t hashCodes[2] = { reinterpret_cast<uintptr_t>(pair->runLoop()), pair->mode() ? CFHash(pair->mode()) : 0 }; 79 return StringHasher::hashMemory<sizeof(hashCodes)>(hashCodes); 80 } 81 82 static bool equal(const RefPtr<SchedulePair>& a, const RefPtr<SchedulePair>& b) { return a == b; } 83 84 static const bool safeToCompareToEmptyOrDeleted = true; 85}; 86 87typedef HashSet<RefPtr<SchedulePair>, SchedulePairHash> SchedulePairHashSet; 88 89} // namespace WTF 90 91using WTF::SchedulePair; 92using WTF::SchedulePairHashSet; 93 94#endif 95