1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 // XMergeFactory.cpp: implementation of the CXMergeFactory class. 23 // 24 ////////////////////////////////////////////////////////////////////// 25 26 #include "stdafx.h" 27 28 #include "XMergeFilter.h" 29 #include "XMergeFactory.h" 30 31 ////////////////////////////////////////////////////////////////////// 32 // IUnknown implementation 33 ////////////////////////////////////////////////////////////////////// 34 STDMETHODIMP CXMergeFactory::QueryInterface(REFIID riid, void **ppvObject) 35 { 36 if(ppvObject == NULL) 37 return E_INVALIDARG; 38 39 if(::IsEqualIID(riid, IID_IUnknown) || ::IsEqualIID(riid, IID_IClassFactory)) 40 { 41 *ppvObject = static_cast<IClassFactory*>(this); 42 } 43 else 44 { 45 *ppvObject = NULL; 46 return E_NOINTERFACE; 47 } 48 49 reinterpret_cast<IUnknown*>(*ppvObject)->AddRef(); 50 return S_OK; 51 } 52 53 54 STDMETHODIMP_(ULONG) CXMergeFactory::AddRef() 55 { 56 return ::InterlockedIncrement(&m_cRef); 57 } 58 59 60 STDMETHODIMP_(ULONG) CXMergeFactory::Release() 61 { 62 if(::InterlockedDecrement(&m_cRef) == 0) 63 { 64 delete this; 65 return 0; 66 } 67 68 return m_cRef; 69 } 70 71 72 ////////////////////////////////////////////////////////////////////// 73 // IUnknown implementation 74 ////////////////////////////////////////////////////////////////////// 75 STDMETHODIMP CXMergeFactory::CreateInstance(IUnknown *pUnkOuter, REFIID iid, void **ppvObject) 76 { 77 if (ppvObject == NULL) 78 return E_INVALIDARG; 79 80 if (pUnkOuter != NULL) // cannot aggregate 81 { 82 *ppvObject = NULL; 83 return CLASS_E_NOAGGREGATION; 84 } 85 86 if (iid == IID_ICeFileFilter) 87 { 88 CXMergeFilter *pFilter = new CXMergeFilter(); 89 if(pFilter == NULL) 90 { 91 *ppvObject = NULL; 92 return E_OUTOFMEMORY; 93 } 94 95 HRESULT hr = pFilter->QueryInterface(iid, ppvObject); 96 pFilter->Release(); 97 98 return hr; 99 } 100 101 return E_INVALIDARG; 102 } 103 104 105 STDMETHODIMP CXMergeFactory::LockServer(BOOL fLock) 106 { 107 _Module.LockServer(fLock); 108 return S_OK; 109 } 110 111 112