/******************************************************************************
 * Icinga 2                                                                   *
 * Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/)        *
 *                                                                            *
 * 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 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 St, Fifth Floor, Boston, MA 02110-1301, USA.             *
 ******************************************************************************/

#include "i2-base.h"

using namespace icinga;

AsyncTask::AsyncTask(const AsyncTask::CompletionCallback& completionCallback)
	: m_Finished(false), m_CompletionCallback(completionCallback)
{ }

AsyncTask::~AsyncTask(void)
{
	if (!m_Finished) {
		Logger::Write(LogCritical, "base", "Contract violation: "
		    "AsyncTask was destroyed before its completion callback was invoked.");
	}
}

void AsyncTask::Start(void)
{
	assert(Application::IsMainThread());

	Run();
}

void AsyncTask::Finish(void)
{
	Event::Post(boost::bind(&AsyncTask::ForwardCallback, static_cast<AsyncTask::Ptr>(GetSelf())));
}

void AsyncTask::ForwardCallback(void)
{
	m_CompletionCallback(GetSelf());
	m_CompletionCallback = CompletionCallback();
	m_Finished = true;
}