LCOV - code coverage report
Current view: directory - xpcom/base - nsISupportsBase.h (source / functions) Found Hit Coverage
Test: app.info Lines: 1 0 0.0 %
Date: 2012-06-02 Functions: 1 0 0.0 %

       1                 : /* ***** BEGIN LICENSE BLOCK *****
       2                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       3                 :  *
       4                 :  * The contents of this file are subject to the Mozilla Public License Version
       5                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       6                 :  * the License. You may obtain a copy of the License at
       7                 :  * http://www.mozilla.org/MPL/
       8                 :  *
       9                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      10                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      11                 :  * for the specific language governing rights and limitations under the
      12                 :  * License.
      13                 :  *
      14                 :  * The Original Code is XPCOM.
      15                 :  *
      16                 :  * The Initial Developer of the Original Code is Netscape Communications Corp.
      17                 :  * Portions created by the Initial Developer are Copyright (C) 2001
      18                 :  * the Initial Developer. All Rights Reserved.
      19                 :  *
      20                 :  * Contributor(s):
      21                 :  *
      22                 :  * Alternatively, the contents of this file may be used under the terms of
      23                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      24                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      25                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      26                 :  * of those above. If you wish to allow use of your version of this file only
      27                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      28                 :  * use your version of this file under the terms of the MPL, indicate your
      29                 :  * decision by deleting the provisions above and replace them with the notice
      30                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      31                 :  * the provisions above, a recipient may use your version of this file under
      32                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      33                 :  *
      34                 :  * ***** END LICENSE BLOCK ***** */
      35                 : 
      36                 : #ifndef nsISupportsBase_h__
      37                 : #define nsISupportsBase_h__
      38                 : 
      39                 : #ifndef nscore_h___
      40                 : #include "nscore.h"
      41                 : #endif
      42                 : 
      43                 : #ifndef nsID_h__
      44                 : #include "nsID.h"
      45                 : #endif
      46                 : 
      47                 : 
      48                 : /*@{*/
      49                 : /**
      50                 :  * IID for the nsISupports interface
      51                 :  * {00000000-0000-0000-c000-000000000046}
      52                 :  *
      53                 :  * To maintain binary compatibility with COM's IUnknown, we define the IID
      54                 :  * of nsISupports to be the same as that of COM's IUnknown.
      55                 :  */
      56                 : #define NS_ISUPPORTS_IID                                                      \
      57                 :   { 0x00000000, 0x0000, 0x0000,                                               \
      58                 :     {0xc0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x46} }
      59                 : 
      60                 : /**
      61                 :  * Basic component object model interface. Objects which implement
      62                 :  * this interface support runtime interface discovery (QueryInterface)
      63                 :  * and a reference counted memory model (AddRef/Release). This is
      64                 :  * modelled after the win32 IUnknown API.
      65                 :  */
      66               0 : class NS_NO_VTABLE nsISupports {
      67                 : public:
      68                 : 
      69                 :   NS_DECLARE_STATIC_IID_ACCESSOR(NS_ISUPPORTS_IID)
      70                 : 
      71                 :   /**
      72                 :    * @name Methods
      73                 :    */
      74                 : 
      75                 :   //@{
      76                 :   /**
      77                 :    * A run time mechanism for interface discovery.
      78                 :    * @param aIID [in] A requested interface IID
      79                 :    * @param aInstancePtr [out] A pointer to an interface pointer to
      80                 :    * receive the result.
      81                 :    * @return <b>NS_OK</b> if the interface is supported by the associated
      82                 :    * instance, <b>NS_NOINTERFACE</b> if it is not.
      83                 :    *
      84                 :    * aInstancePtr must not be null.
      85                 :    */
      86                 :   NS_IMETHOD QueryInterface(REFNSIID aIID, void** aInstancePtr) = 0;
      87                 :   /**
      88                 :    * Increases the reference count for this interface.
      89                 :    * The associated instance will not be deleted unless
      90                 :    * the reference count is returned to zero.
      91                 :    *
      92                 :    * @return The resulting reference count.
      93                 :    */
      94                 :   NS_IMETHOD_(nsrefcnt) AddRef(void) = 0;
      95                 : 
      96                 :   /**
      97                 :    * Decreases the reference count for this interface.
      98                 :    * Generally, if the reference count returns to zero,
      99                 :    * the associated instance is deleted.
     100                 :    *
     101                 :    * @return The resulting reference count.
     102                 :    */
     103                 :   NS_IMETHOD_(nsrefcnt) Release(void) = 0;
     104                 : 
     105                 :   //@}
     106                 : };
     107                 : 
     108                 : NS_DEFINE_STATIC_IID_ACCESSOR(nsISupports, NS_ISUPPORTS_IID)
     109                 : 
     110                 : /*@}*/
     111                 : 
     112                 : #endif

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