/*-----------------------------------------------------------------------------
 * dnslookup.cpp 
 * Copyright (C) 2003, 2004, 2005  Akito Nozaki
 * 
 * This library 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 Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 */

#include <tanoshi/common_def.h>
#include <tanoshi/dnslookup.h>
#include <tanoshi/dnslookupworker.h>
#include <tanoshi/hostaddress.h>

NAMESPACE_TANOSHI
{
	DnsLookup::DnsLookup(Object *parent)
		: Object(parent), wakeup(parent)
	{
		manager = NULL;
		_init();
	}

	DnsLookup::DnsLookup(Object *parent, const std::string &domain)
		: Object(parent), wakeup(parent)
	{
		manager = NULL;
		_init();
		resolve(domain);
	}

	void DnsLookup::_init()
	{
		wakeup.wakeupCall.connect(
				sigc::mem_fun(this, &DnsLookup::wakeup_dataReady));
	}
	
	void DnsLookup::setEventManager(EventManager *e)
	{
		Object::setEventManager(e);
		
		wakeup.setEventManager(e);
	}
	
	void DnsLookup::resolve(const std::string &domain)
	{
		if(manager)
		{
			manager->terminate();
			delete manager;
		}
		
	
		wakeup.start();
		manager = new DnsLookupWorker(this, domain);
		manager->start();
	}

	void DnsLookup::stop()
	{
		manager->terminate();

		delete manager;
		manager = NULL;
	}
	
	HostAddress DnsLookup::getResult()
	{
		return _addr;
	}
	
	bool DnsLookup::isWaiting() const
	{
		if(manager)
			return true;

		return false;
	}
	
	void DnsLookup::wakeup_dataReady()
	{
		if(!manager)
			return;

		_addr = manager->getHostAddress();
		
		delete manager;
		manager = NULL;

		resultReady();
	}
}