uhub/src/core/link.h

71 lines
2.3 KiB
C

/*
* uhub - A tiny ADC p2p connection hub
* Copyright (C) 2007-2013, Jan Vidar Krey
*
* 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 3 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 <http://www.gnu.org/licenses/>.
*
*/
#ifndef HAVE_UHUB_LINK_H
#define HAVE_UHUB_LINK_H
#ifdef LINK_SUPPORT
struct hub_link
{
char name[MAX_NICK_LEN+1]; /** The name of the linked hub */
char user_agent[MAX_UA_LEN+1]; /** The user agent of the linked hub */
char address[256]; /** The official address of the linked hub */
enum link_mode { link_mode_client, link_mode_server } mode;
enum user_state state;
struct ioq_send* send_queue;
struct ioq_recv* recv_queue;
struct net_connection* connection; /** Connection data */
struct net_connect_handle* connect_job; /** Only used when establishing a connection in client mode */
struct hub_info* hub;
int flags;
};
/**
* Create a link from an accepted connection (act as a link server).
*/
extern struct hub_link* link_create(struct hub_info* hub, struct net_connection* con, struct ip_addr_encap* addr);
/**
* Connect this hub to an upstream server (act as a link client).
*/
extern struct hub_link* link_connect(struct hub_info* hub, const char* address, uint16_t port);
extern struct hub_link* link_connect_uri(struct hub_info* hub, const char* address);
/**
* Disconnect a link connection.
*/
extern void link_disconnect(struct hub_link*);
/**
* Read from link connection and process messages.
* @return 0 on success, and a negative value otherwise
*/
extern int link_handle_read(struct hub_link* link);
/**
* Write queued messages to the link.
* @return 0 on success, and a negative value otherwise.
*/
extern int link_handle_write(struct hub_link* link);
#endif // LINK_SUPPORT
#endif /* HAVE_UHUB_LINK_H */