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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, see <https://www.gnu.org/licenses/>.
*/
#ifndef _TRANSACTION_MGR_H
#define _TRANSACTION_MGR_H
#include <map>
#include "events.h"
#include "transaction.h"
#include "user.h"
#include "parser/request.h"
#include "parser/response.h"
#include "sockets/socket.h"
#include "stun/stun_transaction.h"
using namespace std;
class t_transaction_mgr {
private:
// Mapping from transaction id to transaction
map<t_tid, t_trans_client *> map_trans_client;
map<t_tid, t_trans_server *> map_trans_server;
map<t_tid, t_stun_transaction *> map_stun_trans;
// Find existing transactions. Return NULL if not found
t_trans_client *find_trans_client(t_response *r) const;
t_trans_client *find_trans_client(t_tid tid) const;
t_trans_client *find_trans_client(const string &branch, const t_method &cseq_method) const;
t_trans_client *find_trans_client(const t_icmp_msg &icmp) const;
t_trans_server *find_trans_server(t_request *r) const;
t_trans_server *find_trans_server(t_tid tid) const;
t_stun_transaction *find_stun_trans(StunMessage *r) const;
t_stun_transaction *find_stun_trans(t_tid tid) const;
t_stun_transaction *find_stun_trans(const t_icmp_msg &icmp) const;
// Create new transactions.
// Return NULL if creation failed.
t_tc_invite *create_tc_invite(t_user *user_config, t_request *r, unsigned short tuid);
t_tc_non_invite *create_tc_non_invite(t_user *user_config, t_request *r,
unsigned short tuid);
t_ts_invite *create_ts_invite(t_request *r);
t_ts_non_invite *create_ts_non_invite(t_request *r);
t_sip_stun_trans *create_sip_stun_trans(t_user *user_config, StunMessage *r,
unsigned short tuid);
t_media_stun_trans *create_media_stun_trans(t_user *user_config, StunMessage *r,
unsigned short tuid, unsigned short src_port);
// Delete transactions
void delete_trans_client(t_trans_client *tc);
void delete_trans_server(t_trans_server *ts);
void delete_stun_trans(t_stun_transaction *st);
// Handle events
void handle_event_network(t_event_network *e);
void handle_event_user(t_event_user *e);
void handle_event_timeout(t_event_timeout *e);
void handle_event_abort(t_event_abort_trans *e);
void handle_event_stun_request(t_event_stun_request *e);
void handle_event_stun_response(t_event_stun_response *e);
void handle_event_icmp(t_event_icmp *e);
void handle_event_failure(t_event_failure *e);
public:
~t_transaction_mgr();
// Find the target transaction for a CANCEL.
// Return NULL if not found.
t_trans_server *find_cancel_target(t_request *r) const;
// Start transaction timer. Return timer id (needed for stopping)
t_object_id start_timer(long dur, t_sip_timer tmr,
unsigned short tid);
t_object_id start_stun_timer(long dur, t_stun_timer tmr,
unsigned short tid);
// Stop timer. Pass id that is returned by start_timer
void stop_timer(t_object_id id);
// Main loop of the transaction manager (infinite)
void run (void);
};
// Thread that runs the transaction manager
void *transaction_mgr_main(void *arg);
#endif
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