summaryrefslogtreecommitdiffstats
path: root/WebCore/platform/win/COMPtr.h
diff options
context:
space:
mode:
Diffstat (limited to 'WebCore/platform/win/COMPtr.h')
-rw-r--r--WebCore/platform/win/COMPtr.h242
1 files changed, 0 insertions, 242 deletions
diff --git a/WebCore/platform/win/COMPtr.h b/WebCore/platform/win/COMPtr.h
deleted file mode 100644
index 95b53af..0000000
--- a/WebCore/platform/win/COMPtr.h
+++ /dev/null
@@ -1,242 +0,0 @@
-/*
- * Copyright (C) 2007, 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 COMPUTER, INC. ``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 COMPUTER, INC. OR
- * 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.
- */
-
-#ifndef COMPtr_h
-#define COMPtr_h
-
-#ifndef NOMINMAX
-#define NOMINMAX
-#endif
-
-#include <unknwn.h>
-#include <wtf/Assertions.h>
-#include <wtf/HashTraits.h>
-
-#if !OS(WINCE)
-#include <guiddef.h>
-#endif
-
-typedef long HRESULT;
-
-// FIXME: Should we put this into the WebCore namespace and use "using" on it
-// as we do with things in WTF?
-
-enum AdoptCOMTag { AdoptCOM };
-enum QueryTag { Query };
-enum CreateTag { Create };
-
-template<typename T> class COMPtr {
-public:
- COMPtr() : m_ptr(0) { }
- COMPtr(T* ptr) : m_ptr(ptr) { if (m_ptr) m_ptr->AddRef(); }
- COMPtr(AdoptCOMTag, T* ptr) : m_ptr(ptr) { }
- COMPtr(const COMPtr& o) : m_ptr(o.m_ptr) { if (T* ptr = m_ptr) ptr->AddRef(); }
-
- COMPtr(QueryTag, IUnknown* ptr) : m_ptr(copyQueryInterfaceRef(ptr)) { }
- template<typename U> COMPtr(QueryTag, const COMPtr<U>& ptr) : m_ptr(copyQueryInterfaceRef(ptr.get())) { }
-
- COMPtr(CreateTag, const IID& clsid) : m_ptr(createInstance(clsid)) { }
-
- // Hash table deleted values, which are only constructed and never copied or destroyed.
- COMPtr(WTF::HashTableDeletedValueType) : m_ptr(hashTableDeletedValue()) { }
- bool isHashTableDeletedValue() const { return m_ptr == hashTableDeletedValue(); }
-
- ~COMPtr() { if (m_ptr) m_ptr->Release(); }
-
- T* get() const { return m_ptr; }
-
- void clear();
- T* leakRef();
-
- T& operator*() const { return *m_ptr; }
- T* operator->() const { return m_ptr; }
-
- T** operator&() { ASSERT(!m_ptr); return &m_ptr; }
-
- bool operator!() const { return !m_ptr; }
-
- // This conversion operator allows implicit conversion to bool but not to other integer types.
- typedef T* (COMPtr::*UnspecifiedBoolType)() const;
- operator UnspecifiedBoolType() const { return m_ptr ? &COMPtr::get : 0; }
-
- COMPtr& operator=(const COMPtr&);
- COMPtr& operator=(T*);
- template<typename U> COMPtr& operator=(const COMPtr<U>&);
-
- void query(IUnknown* ptr) { adoptRef(copyQueryInterfaceRef(ptr)); }
- template<typename U> void query(const COMPtr<U>& ptr) { query(ptr.get()); }
-
- void create(const IID& clsid) { adoptRef(createInstance(clsid)); }
-
- template<typename U> HRESULT copyRefTo(U**);
- void adoptRef(T*);
-
- // FIXME: Remove releaseRef once we change all callers to call leakRef instead.
- T* releaseRef() { return leakRef(); }
-
-private:
- static T* copyQueryInterfaceRef(IUnknown*);
- static T* createInstance(const IID& clsid);
- static T* hashTableDeletedValue() { return reinterpret_cast<T*>(-1); }
-
- T* m_ptr;
-};
-
-template<typename T> inline void COMPtr<T>::clear()
-{
- if (T* ptr = m_ptr) {
- m_ptr = 0;
- ptr->Release();
- }
-}
-
-template<typename T> inline T* COMPtr<T>::leakRef()
-{
- T* ptr = m_ptr;
- m_ptr = 0;
- return ptr;
-}
-
-template<typename T> inline T* COMPtr<T>::createInstance(const IID& clsid)
-{
- T* result;
- if (FAILED(CoCreateInstance(clsid, 0, CLSCTX_ALL, __uuidof(result), reinterpret_cast<void**>(&result))))
- return 0;
- return result;
-}
-
-template<typename T> inline T* COMPtr<T>::copyQueryInterfaceRef(IUnknown* ptr)
-{
- if (!ptr)
- return 0;
- T* result;
- if (FAILED(ptr->QueryInterface(&result)))
- return 0;
- return result;
-}
-
-template<typename T> template<typename U> inline HRESULT COMPtr<T>::copyRefTo(U** ptr)
-{
- if (!ptr)
- return E_POINTER;
- *ptr = m_ptr;
- if (m_ptr)
- m_ptr->AddRef();
- return S_OK;
-}
-
-template<typename T> inline void COMPtr<T>::adoptRef(T *ptr)
-{
- if (m_ptr)
- m_ptr->Release();
- m_ptr = ptr;
-}
-
-template<typename T> inline COMPtr<T>& COMPtr<T>::operator=(const COMPtr<T>& o)
-{
- T* optr = o.get();
- if (optr)
- optr->AddRef();
- T* ptr = m_ptr;
- m_ptr = optr;
- if (ptr)
- ptr->Release();
- return *this;
-}
-
-template<typename T> template<typename U> inline COMPtr<T>& COMPtr<T>::operator=(const COMPtr<U>& o)
-{
- T* optr = o.get();
- if (optr)
- optr->AddRef();
- T* ptr = m_ptr;
- m_ptr = optr;
- if (ptr)
- ptr->Release();
- return *this;
-}
-
-template<typename T> inline COMPtr<T>& COMPtr<T>::operator=(T* optr)
-{
- if (optr)
- optr->AddRef();
- T* ptr = m_ptr;
- m_ptr = optr;
- if (ptr)
- ptr->Release();
- return *this;
-}
-
-template<typename T, typename U> inline bool operator==(const COMPtr<T>& a, const COMPtr<U>& b)
-{
- return a.get() == b.get();
-}
-
-template<typename T, typename U> inline bool operator==(const COMPtr<T>& a, U* b)
-{
- return a.get() == b;
-}
-
-template<typename T, typename U> inline bool operator==(T* a, const COMPtr<U>& b)
-{
- return a == b.get();
-}
-
-template<typename T, typename U> inline bool operator!=(const COMPtr<T>& a, const COMPtr<U>& b)
-{
- return a.get() != b.get();
-}
-
-template<typename T, typename U> inline bool operator!=(const COMPtr<T>& a, U* b)
-{
- return a.get() != b;
-}
-
-template<typename T, typename U> inline bool operator!=(T* a, const COMPtr<U>& b)
-{
- return a != b.get();
-}
-
-namespace WTF {
-
- template<typename P> struct HashTraits<COMPtr<P> > : GenericHashTraits<COMPtr<P> > {
- static const bool emptyValueIsZero = true;
- static void constructDeletedValue(COMPtr<P>& slot) { new (&slot) COMPtr<P>(HashTableDeletedValue); }
- static bool isDeletedValue(const COMPtr<P>& value) { return value.isHashTableDeletedValue(); }
- };
-
- template<typename P> struct PtrHash<COMPtr<P> > : PtrHash<P*> {
- using PtrHash<P*>::hash;
- static unsigned hash(const COMPtr<P>& key) { return hash(key.get()); }
- using PtrHash<P*>::equal;
- static bool equal(const COMPtr<P>& a, const COMPtr<P>& b) { return a == b; }
- static bool equal(P* a, const COMPtr<P>& b) { return a == b; }
- static bool equal(const COMPtr<P>& a, P* b) { return a == b; }
- };
-
- template<typename P> struct DefaultHash<COMPtr<P> > { typedef PtrHash<COMPtr<P> > Hash; };
-}
-
-#endif
generated by cgit v1.1 at 2025-05-13 11:06:09 +0000