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lightning-sunbird  0.9+nobinonly
msgMapiFactory.cpp
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00001 /* ***** BEGIN LICENSE BLOCK *****
00002  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00003  *
00004  * The contents of this file are subject to the Mozilla Public License Version
00005  * 1.1 (the "License"); you may not use this file except in compliance with
00006  * the License. You may obtain a copy of the License at
00007  * http://www.mozilla.org/MPL/
00008  *
00009  * Software distributed under the License is distributed on an "AS IS" basis,
00010  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00011  * for the specific language governing rights and limitations under the
00012  * License.
00013  *
00014  * The Original Code is Mozilla
00015  *
00016  * The Initial Developer of the Original Code is
00017  * Netscape Communications Corp.
00018  * Portions created by the Initial Developer are Copyright (C) 2001
00019  * the Initial Developer. All Rights Reserved.
00020  *
00021  * Contributor(s): Krishna Mohan Khandrika (kkhandrika@netscape.com)
00022  *
00023  * Alternatively, the contents of this file may be used under the terms of
00024  * either the GNU General Public License Version 2 or later (the "GPL"), or
00025  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00026  * in which case the provisions of the GPL or the LGPL are applicable instead
00027  * of those above. If you wish to allow use of your version of this file only
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00034  *
00035  * ***** END LICENSE BLOCK ***** */
00036 
00037 #undef UNICODE
00038 #undef _UNICODE
00039 
00040 #include "msgMapiFactory.h"
00041 #include "msgMapiImp.h"
00042 #include "msgMapi.h"
00043 
00044 CMapiFactory ::CMapiFactory()
00045 : m_cRef(1)
00046 {
00047 }
00048 
00049 CMapiFactory::~CMapiFactory()
00050 {
00051 }
00052 
00053 STDMETHODIMP CMapiFactory::QueryInterface(const IID& aIid, void** aPpv)
00054 {    
00055     if ((aIid == IID_IUnknown) || (aIid == IID_IClassFactory))
00056     {
00057         *aPpv = static_cast<IClassFactory*>(this); 
00058     }
00059     else
00060     {
00061         *aPpv = nsnull;
00062         return E_NOINTERFACE;
00063     }
00064     reinterpret_cast<IUnknown*>(*aPpv)->AddRef();
00065     return S_OK;
00066 }
00067 
00068 STDMETHODIMP_(ULONG) CMapiFactory::AddRef()
00069 {
00070     return (PR_AtomicIncrement(&m_cRef));
00071 }
00072 
00073 STDMETHODIMP_(ULONG) CMapiFactory::Release() 
00074 {
00075     PRInt32 temp;
00076     temp = PR_AtomicDecrement(&m_cRef);
00077     if (m_cRef == 0)
00078     {
00079         delete this;
00080         return 0;
00081     }
00082 
00083     return temp;
00084 }
00085 
00086 STDMETHODIMP CMapiFactory::CreateInstance(IUnknown* aUnknownOuter,
00087                                            const IID& aIid,
00088                                            void** aPpv) 
00089 {
00090     // Cannot aggregate.
00091 
00092     if (aUnknownOuter != nsnull)
00093     {
00094         return CLASS_E_NOAGGREGATION ;
00095     }
00096 
00097     // Create component.
00098 
00099     CMapiImp* pImp = new CMapiImp();
00100     if (pImp == nsnull)
00101     {
00102         return E_OUTOFMEMORY ;
00103     }
00104 
00105     // Get the requested interface.
00106     HRESULT hr = pImp->QueryInterface(aIid, aPpv);
00107 
00108     // Release the IUnknown pointer.
00109     // (If QueryInterface failed, component will delete itself.)
00110 
00111     pImp->Release();
00112     return hr;
00113 }
00114 
00115 STDMETHODIMP CMapiFactory::LockServer(PRBool aLock) 
00116 {
00117     return S_OK ;
00118 }