1 /* 2 * Copyright (C) 2008 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 Computer, 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 "PlatformString.h" 33 #include <wtf/HashSet.h> 34 #include <wtf/RetainPtr.h> 35 36 #if PLATFORM(MAC) 37 #ifdef __OBJC__ 38 @class NSRunLoop; 39 #else 40 class NSRunLoop; 41 #endif 42 #endif 43 44 namespace WebCore { 45 46 class SchedulePair : public RefCounted<SchedulePair> { 47 public: create(CFRunLoopRef runLoop,CFStringRef mode)48 static PassRefPtr<SchedulePair> create(CFRunLoopRef runLoop, CFStringRef mode) { return adoptRef(new SchedulePair(runLoop, mode)); } 49 50 #if PLATFORM(MAC) create(NSRunLoop * runLoop,CFStringRef mode)51 static PassRefPtr<SchedulePair> create(NSRunLoop* runLoop, CFStringRef mode) { return adoptRef(new SchedulePair(runLoop, mode)); } nsRunLoop()52 NSRunLoop* nsRunLoop() const { return m_nsRunLoop.get(); } 53 #endif 54 runLoop()55 CFRunLoopRef runLoop() const { return m_runLoop.get(); } mode()56 CFStringRef mode() const { return m_mode.get(); } 57 58 bool operator==(const SchedulePair& other) const; 59 60 private: 61 SchedulePair(CFRunLoopRef, CFStringRef); 62 63 #if PLATFORM(MAC) 64 SchedulePair(NSRunLoop*, CFStringRef); 65 RetainPtr<NSRunLoop*> m_nsRunLoop; 66 #endif 67 68 RetainPtr<CFRunLoopRef> m_runLoop; 69 RetainPtr<CFStringRef> m_mode; 70 }; 71 72 struct SchedulePairHash { hashSchedulePairHash73 static unsigned hash(const RefPtr<SchedulePair>& pair) 74 { 75 uintptr_t hashCodes[2] = { reinterpret_cast<uintptr_t>(pair->runLoop()), pair->mode() ? CFHash(pair->mode()) : 0 }; 76 return StringImpl::computeHash(reinterpret_cast<UChar*>(hashCodes), sizeof(hashCodes) / sizeof(UChar)); 77 } 78 equalSchedulePairHash79 static bool equal(const RefPtr<SchedulePair>& a, const RefPtr<SchedulePair>& b) { return a == b; } 80 81 static const bool safeToCompareToEmptyOrDeleted = true; 82 }; 83 84 typedef HashSet<RefPtr<SchedulePair>, SchedulePairHash> SchedulePairHashSet; 85 86 } // namespace WebCore 87 88 #endif 89