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/*
* uhub - A tiny ADC p2p connection hub
* Copyright (C) 2007-2012, 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_NETWORK_BACKEND_H
#define HAVE_UHUB_NETWORK_BACKEND_H
struct net_backend;
struct net_backend_common;
struct net_backend_handler;
struct net_cleanup_handler;
struct net_connection;
typedef void (*net_connection_cb)(struct net_connection*, int event, void* ptr);
typedef struct net_backend* (*net_backend_init_t)(struct net_backend_handler* handler, struct net_backend_common* common);
typedef int (*net_backend_poll)(struct net_backend*, int ms);
typedef void (*net_backend_proc)(struct net_backend*, int res);
typedef void (*net_backend_destroy)(struct net_backend*);
typedef struct net_connection* (*net_con_backend_create)(struct net_backend*);
typedef void (*net_con_backend_init)(struct net_backend*, struct net_connection*, int sd, net_connection_cb callback, const void* ptr);
typedef void (*net_con_backend_add)(struct net_backend*, struct net_connection*, int mask);
typedef void (*net_con_backend_mod)(struct net_backend*, struct net_connection*, int mask);
typedef void (*net_con_backend_del)(struct net_backend*,struct net_connection*);
typedef const char* (*net_con_backend_name)();
struct net_backend_handler
{
net_con_backend_name backend_name;
net_backend_poll backend_poll;
net_backend_proc backend_process;
net_backend_destroy backend_shutdown;
net_con_backend_create con_create;
net_con_backend_init con_init;
net_con_backend_add con_add;
net_con_backend_mod con_mod;
net_con_backend_del con_del;
};
struct net_backend_common
{
size_t num; /* number of connections monitored by the backend */
size_t max; /* max number of connections that can be monitored */
};
/**
* Initialize the network backend.
* Returns 1 on success, or 0 on failure.
*/
extern int net_backend_init();
/**
* Shutdown the network connection backend.
*/
extern void net_backend_shutdown();
/**
* Process the network backend.
*/
extern int net_backend_process();
/**
* Get the current time.
*/
time_t net_get_time();
extern struct timeout_queue* net_backend_get_timeout_queue();
struct net_cleanup_handler* net_cleanup_initialize(size_t max);
void net_cleanup_shutdown(struct net_cleanup_handler* handler);
void net_cleanup_delayed_free(struct net_cleanup_handler* handler, struct net_connection* con);
void net_cleanup_process(struct net_cleanup_handler* handler);
#endif /* HAVE_UHUB_NETWORK_BACKEND_H */
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