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