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/*
Copyright (C) 2005-2009 Michel de Boer <michel@twinklephone.com>
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _H_REDIRECT
#define _H_REDIRECT
#include <list>
#include "user.h"
#include "parser/hdr_contact.h"
#include "sockets/url.h"
using namespace std;
class t_redirector {
private:
// Total number of contacts in try and done lists
int num_contacts;
// Contacts to try
list<t_contact_param> try_contacts;
// Contacts already tried, but unsuccesful
list<t_contact_param> done_contacts;
// Original destination
t_url org_dest;
// Maximum number of redirections that will be tried
int max_redirections;
bool contact_already_added(const t_contact_param contact) const;
// Constructor without parameter should not be used.
t_redirector();
public:
t_redirector(const t_url &_org_dest, int _max_redirections);
// Get the next contact to try
// Returns false if there is no next contact
bool get_next_contact(t_contact_param &contact);
// Add contacts. The passed contacts will be sorted on decreasing
// q-value before adding.
// Contacts that are already in the try list or are tried already
// will not be added.
// If the maximum number of redirections is reached then all contacts
// exceeding the maximum will be discarded.
void add_contacts(const list<t_contact_param> &contacts);
};
#endif
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