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/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 Library General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* SyncronizedWidgetObserver.cpp
* Transfers widget add/remove events to another thread.
* Copyright (C) 2014 Simon Newton
*/
#include "plugins/usbdmx/SyncronizedWidgetObserver.h"
#include "ola/Callback.h"
namespace ola {
namespace plugin {
namespace usbdmx {
using ola::thread::Thread;
SyncronizedWidgetObserver::SyncronizedWidgetObserver(
WidgetObserver *observer,
ola::io::SelectServerInterface *ss)
: m_observer(observer),
m_ss(ss),
m_main_thread_id(Thread::Self()) {
}
template<typename WidgetClass>
bool SyncronizedWidgetObserver::DispatchNewWidget(WidgetClass *widget) {
if (pthread_equal(Thread::Self(), m_main_thread_id)) {
return m_observer->NewWidget(widget);
} else {
AddFuture f;
m_ss->Execute(
NewSingleCallback(
this, &SyncronizedWidgetObserver::HandleNewWidget<WidgetClass>,
widget, &f));
return f.Get();
}
}
template<typename WidgetClass>
void SyncronizedWidgetObserver::HandleNewWidget(WidgetClass*widget,
AddFuture *f) {
f->Set(m_observer->NewWidget(widget));
}
} // namespace usbdmx
} // namespace plugin
} // namespace ola
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