| /* ***** BEGIN LICENSE BLOCK ***** |
| * Version: MPL 1.1/GPL 2.0/LGPL 2.1 |
| * |
| * The contents of this file are subject to the Mozilla Public License Version |
| * 1.1 (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * http://www.mozilla.org/MPL/ |
| * |
| * Software distributed under the License is distributed on an "AS IS" basis, |
| * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License |
| * for the specific language governing rights and limitations under the |
| * License. |
| * |
| * The Original Code is XPCOM. |
| * |
| * The Initial Developer of the Original Code is Netscape Communications Corp. |
| * Portions created by the Initial Developer are Copyright (C) 2001 |
| * the Initial Developer. All Rights Reserved. |
| * |
| * Contributor(s): |
| * |
| * Alternatively, the contents of this file may be used under the terms of |
| * either the GNU General Public License Version 2 or later (the "GPL"), or |
| * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), |
| * in which case the provisions of the GPL or the LGPL are applicable instead |
| * of those above. If you wish to allow use of your version of this file only |
| * under the terms of either the GPL or the LGPL, and not to allow others to |
| * use your version of this file under the terms of the MPL, indicate your |
| * decision by deleting the provisions above and replace them with the notice |
| * and other provisions required by the GPL or the LGPL. If you do not delete |
| * the provisions above, a recipient may use your version of this file under |
| * the terms of any one of the MPL, the GPL or the LGPL. |
| * |
| * ***** END LICENSE BLOCK ***** */ |
| |
| #ifndef nsISupportsBase_h__ |
| #define nsISupportsBase_h__ |
| |
| #ifndef nscore_h___ |
| #include "nscore.h" |
| #endif |
| |
| #ifndef nsID_h__ |
| #include "nsID.h" |
| #endif |
| |
| |
| /*@{*/ |
| /** |
| * IID for the nsISupports interface |
| * {00000000-0000-0000-c000-000000000046} |
| * |
| * To maintain binary compatibility with COM's IUnknown, we define the IID |
| * of nsISupports to be the same as that of COM's IUnknown. |
| */ |
| #define NS_ISUPPORTS_IID \ |
| { 0x00000000, 0x0000, 0x0000, \ |
| {0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46} } |
| |
| /** |
| * Basic component object model interface. Objects which implement |
| * this interface support runtime interface discovery (QueryInterface) |
| * and a reference counted memory model (AddRef/Release). This is |
| * modelled after the win32 IUnknown API. |
| */ |
| class NS_NO_VTABLE nsISupports { |
| public: |
| |
| NS_DECLARE_STATIC_IID_ACCESSOR(NS_ISUPPORTS_IID) |
| |
| /** |
| * @name Methods |
| */ |
| |
| //@{ |
| /** |
| * A run time mechanism for interface discovery. |
| * @param aIID [in] A requested interface IID |
| * @param aInstancePtr [out] A pointer to an interface pointer to |
| * receive the result. |
| * @return <b>NS_OK</b> if the interface is supported by the associated |
| * instance, <b>NS_NOINTERFACE</b> if it is not. |
| * |
| * aInstancePtr must not be null. |
| */ |
| NS_IMETHOD QueryInterface(REFNSIID aIID, void** aInstancePtr) = 0; |
| /** |
| * Increases the reference count for this interface. |
| * The associated instance will not be deleted unless |
| * the reference count is returned to zero. |
| * |
| * @return The resulting reference count. |
| */ |
| NS_IMETHOD_(nsrefcnt) AddRef(void) = 0; |
| |
| /** |
| * Decreases the reference count for this interface. |
| * Generally, if the reference count returns to zero, |
| * the associated instance is deleted. |
| * |
| * @return The resulting reference count. |
| */ |
| NS_IMETHOD_(nsrefcnt) Release(void) = 0; |
| |
| //@} |
| }; |
| |
| NS_DEFINE_STATIC_IID_ACCESSOR(nsISupports, NS_ISUPPORTS_IID) |
| |
| /*@}*/ |
| |
| #endif |