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114 lines
3.4 KiB
114 lines
3.4 KiB
/*****************************************************************************
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* cmd_callbacks.hpp
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*****************************************************************************
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* Copyright (C) 2009 the VideoLAN team
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*
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* Author: Erwan Tulou <erwan10 aT videolan doT org >
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* JP Dinger <jpd (at) videolan (dot) org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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#ifndef CMD_CALLBACKS_HPP
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#define CMD_CALLBACKS_HPP
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#include "cmd_generic.hpp"
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#include "../src/vlcproc.hpp"
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#include <vlc_threads.h>
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class CmdCallback : public CmdGeneric
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{
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public:
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CmdCallback( intf_thread_t *pIntf, vlc_value_t newVal,
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void (VlcProc::*func)(vlc_value_t),
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std::string label )
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: CmdGeneric( pIntf ), m_newVal( newVal ),
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m_label( label ), m_pfExecute( func )
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{
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}
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virtual void execute()
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{
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if( !m_pfExecute )
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return;
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(VlcProc::instance( getIntf() )->*m_pfExecute)( m_newVal );
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}
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virtual std::string getType() const { return m_label; }
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private:
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vlc_value_t m_newVal;
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std::string m_label;
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void (VlcProc::*m_pfExecute)(vlc_value_t);
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};
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class CmdExecuteBlock : public CmdGeneric
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{
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public:
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CmdExecuteBlock( intf_thread_t* pIntf, vlc_object_t* obj,
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void (*func) (intf_thread_t*, vlc_object_t* ) )
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: CmdGeneric( pIntf), m_pObj( obj ), m_pfFunc( func ),
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m_executing( false )
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{
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vlc_mutex_init( &m_lock );
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vlc_cond_init( &m_wait );
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}
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static void executeWait( const CmdGenericPtr& rcCommand )
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{
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CmdExecuteBlock& rCmd = (CmdExecuteBlock&)*rcCommand.get();
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vlc_mutex_locker locker( &rCmd.m_lock );
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if( !rCmd.m_pObj || !rCmd.m_pfFunc || rCmd.m_executing )
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{
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msg_Err( rCmd.getIntf(), "unexpected command call" );
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return;
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}
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AsyncQueue *pQueue = AsyncQueue::instance( rCmd.getIntf() );
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pQueue->push( rcCommand, false );
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rCmd.m_executing = true;
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while( rCmd.m_executing )
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vlc_cond_wait( &rCmd.m_wait, &rCmd.m_lock );
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}
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virtual void execute()
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{
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vlc_mutex_locker locker( &m_lock );
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if( !m_pObj || !m_pfFunc || !m_executing )
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{
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msg_Err( getIntf(), "unexpected command call" );
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return;
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}
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(*m_pfFunc)( getIntf(), m_pObj );
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m_executing = false;
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vlc_cond_signal( &m_wait );
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}
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virtual std::string getType() const { return "CmdExecuteBlock"; }
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private:
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vlc_object_t* m_pObj;
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void (*m_pfFunc)(intf_thread_t*, vlc_object_t*);
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bool m_executing;
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vlc_mutex_t m_lock;
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vlc_cond_t m_wait;
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};
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#endif
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