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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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