3ead3ad52f
Turn the Link class into a template abstracting over the link's argument and return types, but provide default template arguments that keep the generic, unsafe "void* in, sal_IntPtr out" behvior. That way, individual uses of the Link class can be updated over time. All the related macros are duplicated with ..._TYPED counterparts, that additionally take the RetType (except for LINK_TYPED, which manages to infer the relevant types from the supplied Member). (It would have been attractive to change the "untyped" LinkStubs from taking a void* to a properly typed ArgType parameter, too, but that would cause -fsanitize=function to flag uses of "untyped" Link::Call.) Change-Id: I3b0140378bad99abbf240140ebb4a46a05d2d2f8
67 lines
2.2 KiB
C++
67 lines
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef INCLUDED_DBACCESS_ASYNCRONOUSLINK_HXX
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#define INCLUDED_DBACCESS_ASYNCRONOUSLINK_HXX
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#include <tools/link.hxx>
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#include <osl/mutex.hxx>
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struct ImplSVEvent;
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namespace dbaui
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{
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// a helper for multi-threaded handling of async events
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/** handles asynchronous links which may be called in multi-threaded environments
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If you use an instance of this class as member of your own class, it will handle
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several crucial points for you (for instance the case that somebody posts the
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event while another thread tries to delete this event in the _destructor_ of the
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class).
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*/
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class OAsynchronousLink
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{
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Link<> m_aHandler;
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protected:
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::osl::Mutex m_aEventSafety;
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::osl::Mutex m_aDestructionSafety;
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ImplSVEvent * m_nEventId;
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public:
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/** constructs the object
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@param _rHandler The link to be called asynchronously
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*/
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OAsynchronousLink( const Link<>& _rHandler );
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virtual ~OAsynchronousLink();
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bool IsRunning() const { return m_nEventId != 0; }
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void Call( void* _pArgument = NULL );
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void CancelCall();
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protected:
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DECL_LINK(OnAsyncCall, void*);
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};
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}
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#endif // INCLUDED_DBACCESS_ASYNCRONOUSLINK_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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