mirror of https://github.com/PCSX2/pcsx2.git
107 lines
3.0 KiB
C++
107 lines
3.0 KiB
C++
/* PCSX2 - PS2 Emulator for PCs
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* Copyright (C) 2002-2010 PCSX2 Dev Team
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*
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* PCSX2 is free software: you can redistribute it and/or modify it under the terms
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* of the GNU Lesser General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the 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 with PCSX2.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "Threading.h"
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using Threading::ScopedLock;
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template< typename ListenerType >
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typename EventSource<ListenerType>::ListenerIterator EventSource<ListenerType>::Add( ListenerType& listener )
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{
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ScopedLock locker( m_listeners_lock );
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// Check for duplicates before adding the event.
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if( IsDebugBuild )
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{
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ListenerIterator iter = m_listeners.begin();
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while( iter != m_listeners.end() )
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{
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if( (*iter) == &listener ) return iter;
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++iter;
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}
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}
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return _AddFast_without_lock( listener );
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}
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template< typename ListenerType >
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void EventSource<ListenerType>::Remove( ListenerType& listener )
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{
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ScopedLock locker( m_listeners_lock );
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m_cache_valid = false;
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m_listeners.remove( &listener );
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}
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template< typename ListenerType >
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void EventSource<ListenerType>::Remove( const ListenerIterator& listenerHandle )
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{
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ScopedLock locker( m_listeners_lock );
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m_cache_valid = false;
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m_listeners.erase( listenerHandle );
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}
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template< typename ListenerType >
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typename EventSource<ListenerType>::ListenerIterator EventSource<ListenerType>::_AddFast_without_lock( ListenerType& listener )
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{
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m_cache_valid = false;
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m_listeners.push_front( &listener );
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return m_listeners.begin();
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}
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template< typename ListenerType >
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__forceinline void EventSource<ListenerType>::_DispatchRaw( ListenerIterator iter, const ListenerIterator& iend, const EvtParams& evtparams )
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{
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while( iter != iend )
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{
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try {
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(*iter)->DispatchEvent( evtparams );
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}
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catch( Exception::RuntimeError& ex )
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{
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if( IsDevBuild ) {
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pxFailDev( L"Ignoring runtime error thrown from event listener (event listeners should not throw exceptions!): " + ex.FormatDiagnosticMessage() );
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}
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else {
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Console.Error( L"Ignoring runtime error thrown from event listener: " + ex.FormatDiagnosticMessage() );
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}
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}
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catch( BaseException& ex )
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{
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if( IsDevBuild )
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{
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ex.DiagMsg() = L"Non-runtime BaseException thrown from event listener .. " + ex.DiagMsg();
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throw;
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}
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Console.Error( L"Ignoring non-runtime BaseException thrown from event listener: " + ex.FormatDiagnosticMessage() );
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}
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++iter;
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}
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}
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template< typename ListenerType >
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void EventSource<ListenerType>::Dispatch( const EvtParams& evtparams )
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{
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if( !m_cache_valid )
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{
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m_cache_copy = m_listeners;
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m_cache_valid = true;
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}
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if( m_cache_copy.empty() ) return;
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_DispatchRaw( m_cache_copy.begin(), m_cache_copy.end(), evtparams );
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}
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