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/* threads.h |
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* Copyright (C) 2004 by Daniel Wagner |
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* |
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* This file is part of FreeBob. |
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* |
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* FreeBob 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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* FreeBob 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 |
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* along with FreeBob; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA. |
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*/ |
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#ifndef THREADS_H |
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#define THREADS_H |
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#include <semaphore.h> |
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#include "workerthread.h" |
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class Functor |
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{ |
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public: |
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virtual void operator() () = 0; |
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}; |
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//////////////////////////////////////////////////////////////////////// |
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template< typename CalleePtr, typename MemFunPtr > |
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class MemberFunctor0 |
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: public Functor |
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{ |
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public: |
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MemberFunctor0( const CalleePtr& pCallee, |
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MemFunPtr pMemFun, |
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bool bDelete = true ) |
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: m_pCallee( pCallee ) |
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, m_pMemFun( pMemFun ) |
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, m_pSem( 0 ) |
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, m_bDelete( bDelete ) |
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{} |
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MemberFunctor0( const CalleePtr& pCallee, |
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MemFunPtr pMemFun, |
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sem_t* pSem, |
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bool bDelete = true ) |
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: m_pCallee( pCallee ) |
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, m_pMemFun( pMemFun ) |
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, m_pSem( pSem ) |
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, m_bDelete( bDelete ) |
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{} |
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virtual ~MemberFunctor0() |
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{} |
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virtual void operator() () |
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{ |
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( ( *m_pCallee ).*m_pMemFun )(); |
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if ( m_pSem ) { |
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sem_post( m_pSem); |
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} |
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if (m_bDelete) { |
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delete this; |
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} |
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} |
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private: |
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CalleePtr m_pCallee; |
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MemFunPtr m_pMemFun; |
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sem_t* m_pSem; |
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bool m_bDelete; |
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}; |
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template< typename CalleePtr, typename MemFunPtr, typename Parm0 > |
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class MemberFunctor1 |
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: public Functor |
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{ |
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public: |
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MemberFunctor1( const CalleePtr& pCallee, |
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MemFunPtr pMemFun, |
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Parm0 parm0, |
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bool bDelete = true) |
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: m_pCallee( pCallee ) |
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, m_pMemFun( pMemFun ) |
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, m_parm0( parm0 ) |
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, m_pSem( 0 ) |
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, m_bDelete( bDelete ) |
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{} |
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MemberFunctor1( const CalleePtr& pCallee, |
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MemFunPtr pMemFun, |
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Parm0 parm0, |
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sem_t* pSem, |
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bool bDelete = true ) |
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: m_pCallee( pCallee ) |
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, m_pMemFun( pMemFun ) |
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, m_parm0( parm0 ) |
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, m_pSem( 0 ) |
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, m_bDelete( bDelete ) |
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{} |
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virtual ~MemberFunctor1() |
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{} |
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virtual void operator() () |
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{ |
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( ( *m_pCallee ).*m_pMemFun )( m_parm0 ); |
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if (bDelete) { |
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delete this; |
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} |
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} |
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private: |
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CalleePtr m_pCallee; |
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MemFunPtr m_pMemFun; |
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Parm0 m_parm0; |
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sem_t* m_pSem; |
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bool m_bDelete; |
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}; |
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//////////////////////////////////////////////////////////////////////// |
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// 0 params |
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template< typename CalleePtr, typename Callee, typename Ret > |
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inline Functor* deferCall( const CalleePtr& pCallee, |
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Ret( Callee::*pFunction )( ) ) |
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{ |
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return new MemberFunctor0< CalleePtr, Ret ( Callee::* )( ) > |
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( pCallee, pFunction ); |
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} |
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// 1 params |
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template< typename CalleePtr, typename Callee, typename Ret, typename Parm0 > |
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inline Functor* deferCall( const CalleePtr& pCallee, |
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Ret( Callee::*pFunction )( ), |
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Parm0 parm0 ) |
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{ |
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return new MemberFunctor1< CalleePtr, Ret ( Callee::* )( ), Parm0 > |
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( pCallee, pFunction, parm0 ); |
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} |
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//////////////////////////////////////////////////////////////////////// |
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template< typename CalleePtr, typename Callee, typename Ret > |
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inline void asyncCall( const CalleePtr& pCallee, |
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Ret( Callee::*pFunction )( ) ) |
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{ |
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WorkerThread::instance()->addFunctor(new MemberFunctor0< CalleePtr, Ret ( Callee::* )( ) > ( pCallee, pFunction )); |
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} |
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//////////////////////////////////////////////////////////////////////// |
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template< typename CalleePtr, typename Callee, typename Ret > |
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inline void syncCall( const CalleePtr& pCallee, |
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Ret( Callee::*pFunction )( ) ) |
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{ |
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sem_t sem; |
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sem_init( &sem, 1, 0 ); |
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WorkerThread::instance()->addFunctor(new MemberFunctor0< CalleePtr, Ret ( Callee::* )( ) > ( pCallee, pFunction, &sem )); |
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sem_wait( &sem ); |
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sem_destroy( &sem ); |
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} |
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#endif |
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