gecko-dev/xpcom/glue/nsCOMPtr.cpp
1999-08-13 23:00:58 +00:00

85 lines
2.1 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#include "nsCOMPtr.h"
#include "nsIWeakReference.h"
#ifdef NSCAP_FEATURE_FACTOR_DESTRUCTOR
nsCOMPtr_base::~nsCOMPtr_base()
{
if ( mRawPtr )
NSCAP_RELEASE(mRawPtr);
}
#endif
void
nsCOMPtr_base::assign_with_AddRef( nsISupports* rawPtr )
{
if ( rawPtr )
NSCAP_ADDREF(rawPtr);
if ( mRawPtr )
NSCAP_RELEASE(mRawPtr);
mRawPtr = rawPtr;
}
void
nsCOMPtr_base::assign_with_QueryInterface( nsISupports* rawPtr, const nsIID& iid, nsresult* result )
{
nsresult status = NS_ERROR_NULL_POINTER;
if ( !rawPtr || !NS_SUCCEEDED( status = rawPtr->QueryInterface(iid, NSCAP_REINTERPRET_CAST(void**, &rawPtr)) ) )
rawPtr = 0;
if ( mRawPtr )
NSCAP_RELEASE(mRawPtr);
mRawPtr = rawPtr;
if ( result )
*result = status;
}
void
nsCOMPtr_base::assign_with_QueryReferent( nsIWeakReference* weakPtr, const nsIID& iid, nsresult* result )
{
nsresult status = NS_ERROR_NULL_POINTER;
nsISupports* rawPtr;
if ( !weakPtr || !NS_SUCCEEDED( status = weakPtr->QueryReferent(iid, NSCAP_REINTERPRET_CAST(void**, &rawPtr)) ) )
rawPtr = 0;
if ( mRawPtr )
NSCAP_RELEASE(mRawPtr);
mRawPtr = rawPtr;
if ( result )
*result = status;
}
void**
nsCOMPtr_base::begin_assignment()
{
if ( mRawPtr )
{
NSCAP_RELEASE(mRawPtr);
mRawPtr = 0;
}
return NSCAP_REINTERPRET_CAST(void**, &mRawPtr);
}