18e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project/* 2f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick * Copyright (C) 2007, 2010 Apple Inc. All rights reserved. 38e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 48e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * Redistribution and use in source and binary forms, with or without 58e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * modification, are permitted provided that the following conditions 68e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * are met: 78e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 1. Redistributions of source code must retain the above copyright 88e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * notice, this list of conditions and the following disclaimer. 98e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 2. Redistributions in binary form must reproduce the above copyright 108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * notice, this list of conditions and the following disclaimer in the 118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * documentation and/or other materials provided with the distribution. 128e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * 138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 178e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project */ 258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#ifndef COMPtr_h 278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#define COMPtr_h 288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 29635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project#ifndef NOMINMAX 308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#define NOMINMAX 31635860845790a19bf50bbc51ba8fb66a96dde068The Android Open Source Project#endif 328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#include <unknwn.h> 34e14391e94c850b8bd03680c23b38978db68687a8John Reck#include <wtf/Assertions.h> 35e14391e94c850b8bd03680c23b38978db68687a8John Reck#include <wtf/HashTraits.h> 36e14391e94c850b8bd03680c23b38978db68687a8John Reck 37e14391e94c850b8bd03680c23b38978db68687a8John Reck#if !OS(WINCE) 38e14391e94c850b8bd03680c23b38978db68687a8John Reck#include <guiddef.h> 39e14391e94c850b8bd03680c23b38978db68687a8John Reck#endif 408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projecttypedef long HRESULT; 428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project// FIXME: Should we put this into the WebCore namespace and use "using" on it 448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project// as we do with things in WTF? 458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectenum AdoptCOMTag { AdoptCOM }; 478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectenum QueryTag { Query }; 488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectenum CreateTag { Create }; 498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 50f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merricktemplate<typename T> class COMPtr { 518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectpublic: 528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project COMPtr() : m_ptr(0) { } 538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project COMPtr(T* ptr) : m_ptr(ptr) { if (m_ptr) m_ptr->AddRef(); } 548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project COMPtr(AdoptCOMTag, T* ptr) : m_ptr(ptr) { } 558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project COMPtr(const COMPtr& o) : m_ptr(o.m_ptr) { if (T* ptr = m_ptr) ptr->AddRef(); } 568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 578e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project COMPtr(QueryTag, IUnknown* ptr) : m_ptr(copyQueryInterfaceRef(ptr)) { } 58f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick template<typename U> COMPtr(QueryTag, const COMPtr<U>& ptr) : m_ptr(copyQueryInterfaceRef(ptr.get())) { } 598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project COMPtr(CreateTag, const IID& clsid) : m_ptr(createInstance(clsid)) { } 618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // Hash table deleted values, which are only constructed and never copied or destroyed. 638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project COMPtr(WTF::HashTableDeletedValueType) : m_ptr(hashTableDeletedValue()) { } 648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool isHashTableDeletedValue() const { return m_ptr == hashTableDeletedValue(); } 658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ~COMPtr() { if (m_ptr) m_ptr->Release(); } 678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project T* get() const { return m_ptr; } 69f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick 70f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick void clear(); 71f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick T* leakRef(); 728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project T& operator*() const { return *m_ptr; } 748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project T* operator->() const { return m_ptr; } 758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project T** operator&() { ASSERT(!m_ptr); return &m_ptr; } 778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project bool operator!() const { return !m_ptr; } 798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project // This conversion operator allows implicit conversion to bool but not to other integer types. 818e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project typedef T* (COMPtr::*UnspecifiedBoolType)() const; 828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project operator UnspecifiedBoolType() const { return m_ptr ? &COMPtr::get : 0; } 838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project COMPtr& operator=(const COMPtr&); 858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project COMPtr& operator=(T*); 86f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick template<typename U> COMPtr& operator=(const COMPtr<U>&); 878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project void query(IUnknown* ptr) { adoptRef(copyQueryInterfaceRef(ptr)); } 89f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick template<typename U> void query(const COMPtr<U>& ptr) { query(ptr.get()); } 908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project void create(const IID& clsid) { adoptRef(createInstance(clsid)); } 928e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 93f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick template<typename U> HRESULT copyRefTo(U**); 948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project void adoptRef(T*); 958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 96f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick // FIXME: Remove releaseRef once we change all callers to call leakRef instead. 97f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick T* releaseRef() { return leakRef(); } 98f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick 998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectprivate: 1008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project static T* copyQueryInterfaceRef(IUnknown*); 1018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project static T* createInstance(const IID& clsid); 1028e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project static T* hashTableDeletedValue() { return reinterpret_cast<T*>(-1); } 1038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 1048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project T* m_ptr; 1058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project}; 1068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 107f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merricktemplate<typename T> inline void COMPtr<T>::clear() 108f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick{ 109f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick if (T* ptr = m_ptr) { 110f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick m_ptr = 0; 111f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick ptr->Release(); 112f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick } 113f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick} 114f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick 115f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merricktemplate<typename T> inline T* COMPtr<T>::leakRef() 116f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick{ 117f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick T* ptr = m_ptr; 118f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick m_ptr = 0; 119f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick return ptr; 120f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick} 121f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick 122f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merricktemplate<typename T> inline T* COMPtr<T>::createInstance(const IID& clsid) 1238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project T* result; 1258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (FAILED(CoCreateInstance(clsid, 0, CLSCTX_ALL, __uuidof(result), reinterpret_cast<void**>(&result)))) 1268e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return 0; 1278e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return result; 1288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 1298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 130f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merricktemplate<typename T> inline T* COMPtr<T>::copyQueryInterfaceRef(IUnknown* ptr) 1318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!ptr) 1338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return 0; 1348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project T* result; 1358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (FAILED(ptr->QueryInterface(&result))) 1368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return 0; 1378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return result; 1388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 1398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 140f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merricktemplate<typename T> template<typename U> inline HRESULT COMPtr<T>::copyRefTo(U** ptr) 1418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (!ptr) 1438e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return E_POINTER; 1448e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project *ptr = m_ptr; 1458e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (m_ptr) 1468e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_ptr->AddRef(); 1478e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return S_OK; 1488e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 1498e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 150f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merricktemplate<typename T> inline void COMPtr<T>::adoptRef(T *ptr) 1518e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1528e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (m_ptr) 1538e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_ptr->Release(); 1548e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_ptr = ptr; 1558e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 1568e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 157f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merricktemplate<typename T> inline COMPtr<T>& COMPtr<T>::operator=(const COMPtr<T>& o) 1588e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1598e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project T* optr = o.get(); 1608e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (optr) 1618e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project optr->AddRef(); 1628e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project T* ptr = m_ptr; 1638e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_ptr = optr; 1648e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (ptr) 1658e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ptr->Release(); 1668e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return *this; 1678e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 1688e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 169f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merricktemplate<typename T> template<typename U> inline COMPtr<T>& COMPtr<T>::operator=(const COMPtr<U>& o) 1708e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1718e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project T* optr = o.get(); 1728e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (optr) 1738e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project optr->AddRef(); 1748e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project T* ptr = m_ptr; 1758e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_ptr = optr; 1768e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (ptr) 1778e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ptr->Release(); 1788e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return *this; 1798e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 1808e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 181f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merricktemplate<typename T> inline COMPtr<T>& COMPtr<T>::operator=(T* optr) 1828e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1838e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (optr) 1848e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project optr->AddRef(); 1858e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project T* ptr = m_ptr; 1868e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project m_ptr = optr; 1878e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project if (ptr) 1888e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project ptr->Release(); 1898e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return *this; 1908e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 1918e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 192f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merricktemplate<typename T, typename U> inline bool operator==(const COMPtr<T>& a, const COMPtr<U>& b) 1938e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1948e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return a.get() == b.get(); 1958e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 1968e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 197f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merricktemplate<typename T, typename U> inline bool operator==(const COMPtr<T>& a, U* b) 1988e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 1998e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return a.get() == b; 2008e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 2018e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 202f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merricktemplate<typename T, typename U> inline bool operator==(T* a, const COMPtr<U>& b) 2038e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 2048e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return a == b.get(); 2058e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 2068e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 207f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merricktemplate<typename T, typename U> inline bool operator!=(const COMPtr<T>& a, const COMPtr<U>& b) 2088e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 2098e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return a.get() != b.get(); 2108e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 2118e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 212f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merricktemplate<typename T, typename U> inline bool operator!=(const COMPtr<T>& a, U* b) 2138e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 2148e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return a.get() != b; 2158e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 2168e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 217f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merricktemplate<typename T, typename U> inline bool operator!=(T* a, const COMPtr<U>& b) 2188e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project{ 2198e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project return a != b.get(); 2208e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 2218e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2228e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Projectnamespace WTF { 2238e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2248e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project template<typename P> struct HashTraits<COMPtr<P> > : GenericHashTraits<COMPtr<P> > { 2258e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project static const bool emptyValueIsZero = true; 226f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick static void constructDeletedValue(COMPtr<P>& slot) { new (&slot) COMPtr<P>(HashTableDeletedValue); } 227f486d19d62f1bc33246748b14b14a9dfa617b57fIain Merrick static bool isDeletedValue(const COMPtr<P>& value) { return value.isHashTableDeletedValue(); } 2288e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project }; 2298e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2308e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project template<typename P> struct PtrHash<COMPtr<P> > : PtrHash<P*> { 2318e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project using PtrHash<P*>::hash; 2328e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project static unsigned hash(const COMPtr<P>& key) { return hash(key.get()); } 2338e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project using PtrHash<P*>::equal; 2348e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project static bool equal(const COMPtr<P>& a, const COMPtr<P>& b) { return a == b; } 2358e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project static bool equal(P* a, const COMPtr<P>& b) { return a == b; } 2368e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project static bool equal(const COMPtr<P>& a, P* b) { return a == b; } 2378e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project }; 2388e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2398e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project template<typename P> struct DefaultHash<COMPtr<P> > { typedef PtrHash<COMPtr<P> > Hash; }; 2408e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project} 2418e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project 2428e35f3cfc7fba1d1c829dc557ebad6409cbe16a2The Android Open Source Project#endif 243