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-rw-r--r--WebCore/platform/win/COMPtr.h64
1 files changed, 42 insertions, 22 deletions
diff --git a/WebCore/platform/win/COMPtr.h b/WebCore/platform/win/COMPtr.h
index 692706f..6b84256 100644
--- a/WebCore/platform/win/COMPtr.h
+++ b/WebCore/platform/win/COMPtr.h
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2007 Apple Inc. All rights reserved.
+ * 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
@@ -44,7 +44,7 @@ enum AdoptCOMTag { AdoptCOM };
enum QueryTag { Query };
enum CreateTag { Create };
-template <typename T> class COMPtr {
+template<typename T> class COMPtr {
public:
COMPtr() : m_ptr(0) { }
COMPtr(T* ptr) : m_ptr(ptr) { if (m_ptr) m_ptr->AddRef(); }
@@ -52,7 +52,7 @@ public:
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())) { }
+ template<typename U> COMPtr(QueryTag, const COMPtr<U>& ptr) : m_ptr(copyQueryInterfaceRef(ptr.get())) { }
COMPtr(CreateTag, const IID& clsid) : m_ptr(createInstance(clsid)) { }
@@ -63,7 +63,9 @@ public:
~COMPtr() { if (m_ptr) m_ptr->Release(); }
T* get() const { return m_ptr; }
- T* releaseRef() { T* tmp = m_ptr; m_ptr = 0; return tmp; }
+
+ void clear();
+ T* leakRef();
T& operator*() const { return *m_ptr; }
T* operator->() const { return m_ptr; }
@@ -78,16 +80,19 @@ public:
COMPtr& operator=(const COMPtr&);
COMPtr& operator=(T*);
- template <typename U> COMPtr& operator=(const COMPtr<U>&);
+ 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()); }
+ 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**);
+ 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);
@@ -96,7 +101,22 @@ private:
T* m_ptr;
};
-template <typename T> inline T* COMPtr<T>::createInstance(const IID& clsid)
+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))))
@@ -104,7 +124,7 @@ template <typename T> inline T* COMPtr<T>::createInstance(const IID& clsid)
return result;
}
-template <typename T> inline T* COMPtr<T>::copyQueryInterfaceRef(IUnknown* ptr)
+template<typename T> inline T* COMPtr<T>::copyQueryInterfaceRef(IUnknown* ptr)
{
if (!ptr)
return 0;
@@ -114,7 +134,7 @@ template <typename T> inline T* COMPtr<T>::copyQueryInterfaceRef(IUnknown* ptr)
return result;
}
-template <typename T> template <typename U> inline HRESULT COMPtr<T>::copyRefTo(U** ptr)
+template<typename T> template<typename U> inline HRESULT COMPtr<T>::copyRefTo(U** ptr)
{
if (!ptr)
return E_POINTER;
@@ -124,14 +144,14 @@ template <typename T> template <typename U> inline HRESULT COMPtr<T>::copyRefTo(
return S_OK;
}
-template <typename T> inline void COMPtr<T>::adoptRef(T *ptr)
+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)
+template<typename T> inline COMPtr<T>& COMPtr<T>::operator=(const COMPtr<T>& o)
{
T* optr = o.get();
if (optr)
@@ -143,7 +163,7 @@ template <typename T> inline COMPtr<T>& COMPtr<T>::operator=(const COMPtr<T>& o)
return *this;
}
-template <typename T> template <typename U> inline COMPtr<T>& COMPtr<T>::operator=(const COMPtr<U>& o)
+template<typename T> template<typename U> inline COMPtr<T>& COMPtr<T>::operator=(const COMPtr<U>& o)
{
T* optr = o.get();
if (optr)
@@ -155,7 +175,7 @@ template <typename T> template <typename U> inline COMPtr<T>& COMPtr<T>::operato
return *this;
}
-template <typename T> inline COMPtr<T>& COMPtr<T>::operator=(T* optr)
+template<typename T> inline COMPtr<T>& COMPtr<T>::operator=(T* optr)
{
if (optr)
optr->AddRef();
@@ -166,32 +186,32 @@ template <typename T> inline COMPtr<T>& COMPtr<T>::operator=(T* optr)
return *this;
}
-template <typename T, typename U> inline bool operator==(const COMPtr<T>& a, const COMPtr<U>& b)
+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)
+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)
+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)
+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)
+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)
+template<typename T, typename U> inline bool operator!=(T* a, const COMPtr<U>& b)
{
return a != b.get();
}
@@ -200,8 +220,8 @@ namespace WTF {
template<typename P> struct HashTraits<COMPtr<P> > : GenericHashTraits<COMPtr<P> > {
static const bool emptyValueIsZero = true;
- static void constructDeletedValue(COMPtr<P>& slot) { slot.releaseRef(); *&slot = reinterpret_cast<P*>(-1); }
- static bool isDeletedValue(const COMPtr<P>& value) { return value == reinterpret_cast<P*>(-1); }
+ 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*> {
generated by cgit v1.1 at 2025-05-20 09:28:36 +0000