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https://github.com/RIOT-OS/RIOT.git
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62 lines
1.5 KiB
C
62 lines
1.5 KiB
C
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/*
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* Copyright (C) 2015 Simon Brummer
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @defgroup net_gnrc_tcp TCP
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* @ingroup net_gnrc
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* @brief RIOT's tcp implementation for the gnrc stack
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*
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* @{
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*
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* @file
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* @brief Definies function to manipulate a connections state
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*
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* @author Simon Brummer <brummer.simon@googlemail.com>
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*/
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#ifndef GNRC_TCP_INTERNAL_FSM_H_
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#define GNRC_TCP_INTERNAL_FSM_H_
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#include <errno.h>
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#include "net/gnrc/pktbuf.h"
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#include "net/gnrc/pkt.h"
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#include "net/gnrc/tcp/fsm.h"
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#include "net/gnrc/tcp.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief PID of tcp event handling thread
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*/
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extern kernel_pid_t _gnrc_tcp_pid;
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/**
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* @brief TCP finite state maschine
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*
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* @param[in,out] tcb specifies connection to use fsm on.
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* @param[in] event current event that triggers fsm translation
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* @param[in] in_pkt packet that triggered fsm event. Only in case of RCVD_PKT
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* @param[in,out] buf buffer for send and receive functions
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* @param[in] nByte number of bytes to send or receive atmost
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*
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* @return Zero on success
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* @return Positive Number, number of bytes sent from or copied into buf.
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* @return -ENOSYS if event is not implemented
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*/
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int _fsm(gnrc_tcp_tcb_t* tcb, gnrc_tcp_fsm_event_t event, gnrc_pktsnip_t *in_pkt, void *buf,
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size_t nByte);
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#ifdef __cplusplus
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}
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#endif
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#endif /* GNRC_TCP_INTERNAL_FSM_H_ */
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/** @} */
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