summaryrefslogtreecommitdiff
path: root/zen/com_ptr.h
diff options
context:
space:
mode:
authorDaniel Wilhelm <daniel@wili.li>2014-04-18 17:31:23 +0200
committerDaniel Wilhelm <daniel@wili.li>2014-04-18 17:31:23 +0200
commit851b6f99c1248c8ec8e33322a3179c1d82fdd515 (patch)
tree5b9abf4c4e648ea48ed4873e3c4bf1b225c64daf /zen/com_ptr.h
parent6.1 (diff)
downloadFreeFileSync-851b6f99c1248c8ec8e33322a3179c1d82fdd515.tar.gz
FreeFileSync-851b6f99c1248c8ec8e33322a3179c1d82fdd515.tar.bz2
FreeFileSync-851b6f99c1248c8ec8e33322a3179c1d82fdd515.zip
6.2
Diffstat (limited to 'zen/com_ptr.h')
-rw-r--r--zen/com_ptr.h120
1 files changed, 0 insertions, 120 deletions
diff --git a/zen/com_ptr.h b/zen/com_ptr.h
deleted file mode 100644
index 6fb9f2cd..00000000
--- a/zen/com_ptr.h
+++ /dev/null
@@ -1,120 +0,0 @@
-// **************************************************************************
-// * This file is part of the FreeFileSync project. It is distributed under *
-// * GNU General Public License: http://www.gnu.org/licenses/gpl.html *
-// * Copyright (C) Zenju (zenju AT gmx DOT de) - All Rights Reserved *
-// **************************************************************************
-
-#ifndef SMART_COM_PTR_H
-#define SMART_COM_PTR_H
-
-#include <algorithm>
-#include "win.h" //includes "windows.h" -> always include before other headers that also might include "windows.h"!
-#include <Objbase.h>
-
-namespace zen
-{
-/*
-ComPtr: RAII class handling COM objects
-
-Example:
---------
- ComPtr<IUPnPDeviceFinder> devFinder;
- if (FAILED(::CoCreateInstance(CLSID_UPnPDeviceFinder,
- nullptr,
- CLSCTX_ALL,
- IID_PPV_ARGS(devFinder.init()))))
- return -1;
-
- ComPtr<IEnumUnknown> devEnum = com_dynamic_cast<IEnumUnknown>(devColl);
- if (!devEnum)
- return -1;
-*/
-
-template <class T>
-class ComPtr
-{
-public:
- ComPtr() : ptr(nullptr) {} //
- ComPtr(const ComPtr& other) : ptr(other.ptr) { if (ptr) ptr->AddRef(); } //noexcept in C++11
- ComPtr( ComPtr&& tmp ) : ptr(tmp.release()) {} //
- ~ComPtr() { if (ptr) ptr->Release(); } //has exception spec of compiler-generated destructor by default
-
- ComPtr& operator=(const ComPtr& other) { ComPtr(other).swap(*this); return *this; } //noexcept in C++11
- ComPtr& operator=(ComPtr&& tmp) { swap(tmp); return *this; } //
- //don't use unifying assignment but save one move-construction in the r-value case instead!
-
- void swap(ComPtr& rhs) { std::swap(ptr, rhs.ptr); } //noexcept in C++11
-
- T** init() //get pointer for use with ::CoCreateInstance()
- {
- ComPtr<T>().swap(*this);
- return &ptr;
- }
-
- T* get() const { return ptr; }
-
- T* operator->() const { return ptr; }
- T& operator* () const { return *ptr; }
-
- T* release() //noexcept in C++11
- {
- T* tmp = ptr;
- ptr = nullptr;
- return tmp;
- }
-
-private:
- T* ptr;
-
- struct ConversionToBool { int dummy; };
-public:
- //use member pointer as implicit conversion to bool (C++ Templates - Vandevoorde/Josuttis; chapter 20)
- operator int ConversionToBool::* () const { return ptr != nullptr ? &ConversionToBool::dummy : nullptr; }
-};
-
-
-template <class S, class T>
-ComPtr<S> com_dynamic_cast(const ComPtr<T>& other); //noexcept in C++11
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-//################# implementation #############################
-
-//we cannot partially specialize std::swap() for a class template and are not allowed to overload it => offer swap in own namespace
-template <class T> inline
-void swap(zen::ComPtr<T>& lhs, zen::ComPtr<T>& rhs)
-{
- lhs.swap(rhs);
-}
-
-
-template <class S, class T> inline
-ComPtr<S> com_dynamic_cast(const ComPtr<T>& other) //noexcept in C++11
-{
- ComPtr<S> outPtr;
- if (other)
- other->QueryInterface(IID_PPV_ARGS(outPtr.init()));
- return outPtr;
-}
-}
-
-#endif //SMART_COM_PTR_H \ No newline at end of file
bgstack15