8d2f296cfd
Still not building pending a decision on bug 66610. git-svn-id: svn://10.0.0.236/trunk@87343 18797224-902f-48f8-a5cc-f745e15eee43
68 lines
2.2 KiB
C++
68 lines
2.2 KiB
C++
/*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
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* the specific language governing rights and limitations under the License.
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*
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* The Original Code is the Python XPCOM language bindings.
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*
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* The Initial Developer of the Original Code is ActiveState Tool Corp.
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* Portions created by ActiveState Tool Corp. are Copyright (C) 2000, 2001
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* ActiveState Tool Corp. All Rights Reserved.
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*
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* Contributor(s): Mark Hammond <MarkH@ActiveState.com> (original author)
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*
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*/
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// PyGWeakReference - implements weak references for gateways.
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//
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// This code is part of the XPCOM extensions for Python.
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//
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// Written November 2000 by Mark Hammond.
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//
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// Based heavily on the Python COM support, which is
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// (c) Mark Hammond and Greg Stein.
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//
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// (c) 2000, ActiveState corp.
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#include "PyXPCOM_std.h"
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PyXPCOM_GatewayWeakReference::PyXPCOM_GatewayWeakReference( PyG_Base *base )
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{
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m_pBase = base;
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NS_INIT_REFCNT();
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}
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PyXPCOM_GatewayWeakReference::~PyXPCOM_GatewayWeakReference()
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{
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// Simply zap my reference to the gateway!
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// No need to zap my gateway's reference to me, as
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// it already holds a reference, so if we are destructing,
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// then it can't possibly hold one.
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m_pBase = NULL;
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}
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NS_IMPL_THREADSAFE_ADDREF(PyXPCOM_GatewayWeakReference);
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NS_IMPL_THREADSAFE_RELEASE(PyXPCOM_GatewayWeakReference);
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NS_IMPL_THREADSAFE_QUERY_INTERFACE(PyXPCOM_GatewayWeakReference, NS_GET_IID(nsIWeakReference));
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NS_IMETHODIMP
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PyXPCOM_GatewayWeakReference::QueryReferent(REFNSIID iid, void * *ret)
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{
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{
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// Temp scope for lock. We can't hold the lock during
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// a QI, as this may itself need the lock.
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// Make sure our object isn't dieing right now on another thread.
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CEnterLeaveXPCOMFramework _celf;
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if (m_pBase == NULL)
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return NS_ERROR_NULL_POINTER;
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m_pBase->AddRef(); // Can't die while we have a ref.
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} // end of lock scope - lock unlocked.
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nsresult nr = m_pBase->QueryInterface(iid, ret);
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m_pBase->Release();
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return nr;
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}
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