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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_CONNECTION_H
#define HAVE_UHUB_NETWORK_CONNECTION_H
#include "uhub.h"
#include "network/common.h"
#include "network/backend.h"
#include "network/tls.h"
#define NET_EVENT_TIMEOUT 0x0001
#define NET_EVENT_READ 0x0002
#define NET_EVENT_WRITE 0x0004
struct net_connection
{
NET_CON_STRUCT_COMMON
};
extern int net_con_get_sd(struct net_connection* con);
extern void* net_con_get_ptr(struct net_connection* con);
extern struct net_connection* net_con_create();
extern void net_con_destroy(struct net_connection*);
extern void net_con_initialize(struct net_connection* con, int sd, net_connection_cb callback, const void* ptr, int events);
extern void net_con_reinitialize(struct net_connection* con, net_connection_cb callback, const void* ptr, int events);
extern void net_con_update(struct net_connection* con, int events);
extern void net_con_callback(struct net_connection* con, int events);
/**
* Close the connection.
* This will ensure a connection is closed properly and will generate a NET_EVENT_DESTROYED event which indicates
* that the con can safely be deleted (or set to NULL).
*/
extern void net_con_close(struct net_connection* con);
/**
* Send data
*
* @return returns the number of bytes sent.
* 0 if no data is sent, and this function should be called again (EWOULDBLOCK/EINTR)
* <0 if an error occured, the negative number contains the error code.
*/
extern ssize_t net_con_send(struct net_connection* con, const void* buf, size_t len);
/**
* Receive data
*
* @return returns the number of bytes sent.
* 0 if no data is sent, and this function should be called again (EWOULDBLOCK/EINTR)
* <0 if an error occured, the negative number contains the error code.
*/
extern ssize_t net_con_recv(struct net_connection* con, void* buf, size_t len);
/**
* Receive data without removing them from the recv() buffer.
* NOTE: This does not currently work for SSL connections after the SSL handshake has been
* performed.
*/
extern ssize_t net_con_peek(struct net_connection* con, void* buf, size_t len);
/**
* Set timeout for connetion.
*
* @param seconds the number of seconds into the future.
*/
extern void net_con_set_timeout(struct net_connection* con, int seconds);
extern void net_con_clear_timeout(struct net_connection* con);
#endif /* HAVE_UHUB_NETWORK_CONNECTION_H */
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