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Jesper Taxbøl / Mbed 2 deprecated TCPSpeedTest

I have a problem getting this to work. Server only recieves half of the data being sent. Whats wrong

lwip/netif/slipif.c@0:66300c77c6e9, 2011-03-29 (annotated)

Committer:: tax
Date:: Tue Mar 29 13:20:15 2011 +0000
Revision:: 0:66300c77c6e9

Who changed what in which revision?

User	Revision	Line number	New contents of line
tax	0:66300c77c6e9	1	/**
tax	0:66300c77c6e9	2	* @file
tax	0:66300c77c6e9	3	* SLIP Interface
tax	0:66300c77c6e9	4	*
tax	0:66300c77c6e9	5	*/
tax	0:66300c77c6e9	6
tax	0:66300c77c6e9	7	/*
tax	0:66300c77c6e9	8	* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
tax	0:66300c77c6e9	9	* All rights reserved.
tax	0:66300c77c6e9	10	*
tax	0:66300c77c6e9	11	* Redistribution and use in source and binary forms, with or without
tax	0:66300c77c6e9	12	* modification, are permitted provided that the following conditions
tax	0:66300c77c6e9	13	* are met:
tax	0:66300c77c6e9	14	* 1. Redistributions of source code must retain the above copyright
tax	0:66300c77c6e9	15	* notice, this list of conditions and the following disclaimer.
tax	0:66300c77c6e9	16	* 2. Redistributions in binary form must reproduce the above copyright
tax	0:66300c77c6e9	17	* notice, this list of conditions and the following disclaimer in the
tax	0:66300c77c6e9	18	* documentation and/or other materials provided with the distribution.
tax	0:66300c77c6e9	19	* 3. Neither the name of the Institute nor the names of its contributors
tax	0:66300c77c6e9	20	* may be used to endorse or promote products derived from this software
tax	0:66300c77c6e9	21	* without specific prior written permission.
tax	0:66300c77c6e9	22	*
tax	0:66300c77c6e9	23	* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
tax	0:66300c77c6e9	24	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
tax	0:66300c77c6e9	25	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
tax	0:66300c77c6e9	26	* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
tax	0:66300c77c6e9	27	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
tax	0:66300c77c6e9	28	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
tax	0:66300c77c6e9	29	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
tax	0:66300c77c6e9	30	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
tax	0:66300c77c6e9	31	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
tax	0:66300c77c6e9	32	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
tax	0:66300c77c6e9	33	* SUCH DAMAGE.
tax	0:66300c77c6e9	34	*
tax	0:66300c77c6e9	35	* This file is built upon the file: src/arch/rtxc/netif/sioslip.c
tax	0:66300c77c6e9	36	*
tax	0:66300c77c6e9	37	* Author: Magnus Ivarsson <magnus.ivarsson(at)volvo.com>
tax	0:66300c77c6e9	38	*/
tax	0:66300c77c6e9	39
tax	0:66300c77c6e9	40	/*
tax	0:66300c77c6e9	41	* This is an arch independent SLIP netif. The specific serial hooks must be
tax	0:66300c77c6e9	42	* provided by another file. They are sio_open, sio_read/sio_tryread and sio_send
tax	0:66300c77c6e9	43	*/
tax	0:66300c77c6e9	44
tax	0:66300c77c6e9	45	#include "netif/slipif.h"
tax	0:66300c77c6e9	46	#include "lwip/opt.h"
tax	0:66300c77c6e9	47
tax	0:66300c77c6e9	48	#if LWIP_HAVE_SLIPIF
tax	0:66300c77c6e9	49
tax	0:66300c77c6e9	50	#include "lwip/def.h"
tax	0:66300c77c6e9	51	#include "lwip/pbuf.h"
tax	0:66300c77c6e9	52	#include "lwip/sys.h"
tax	0:66300c77c6e9	53	#include "lwip/stats.h"
tax	0:66300c77c6e9	54	#include "lwip/snmp.h"
tax	0:66300c77c6e9	55	#include "lwip/sio.h"
tax	0:66300c77c6e9	56
tax	0:66300c77c6e9	57	#define SLIP_BLOCK 1
tax	0:66300c77c6e9	58	#define SLIP_DONTBLOCK 0
tax	0:66300c77c6e9	59
tax	0:66300c77c6e9	60	#define SLIP_END 0300 /* 0xC0 */
tax	0:66300c77c6e9	61	#define SLIP_ESC 0333 /* 0xDB */
tax	0:66300c77c6e9	62	#define SLIP_ESC_END 0334 /* 0xDC */
tax	0:66300c77c6e9	63	#define SLIP_ESC_ESC 0335 /* 0xDD */
tax	0:66300c77c6e9	64
tax	0:66300c77c6e9	65	#define SLIP_MAX_SIZE 1500
tax	0:66300c77c6e9	66
tax	0:66300c77c6e9	67	enum slipif_recv_state {
tax	0:66300c77c6e9	68	SLIP_RECV_NORMAL,
tax	0:66300c77c6e9	69	SLIP_RECV_ESCAPE,
tax	0:66300c77c6e9	70	};
tax	0:66300c77c6e9	71
tax	0:66300c77c6e9	72	struct slipif_priv {
tax	0:66300c77c6e9	73	sio_fd_t sd;
tax	0:66300c77c6e9	74	/* q is the whole pbuf chain for a packet, p is the current pbuf in the chain */
tax	0:66300c77c6e9	75	struct pbuf p, q;
tax	0:66300c77c6e9	76	enum slipif_recv_state state;
tax	0:66300c77c6e9	77	u16_t i, recved;
tax	0:66300c77c6e9	78	};
tax	0:66300c77c6e9	79
tax	0:66300c77c6e9	80	/**
tax	0:66300c77c6e9	81	* Send a pbuf doing the necessary SLIP encapsulation
tax	0:66300c77c6e9	82	*
tax	0:66300c77c6e9	83	* Uses the serial layer's sio_send()
tax	0:66300c77c6e9	84	*
tax	0:66300c77c6e9	85	* @param netif the lwip network interface structure for this slipif
tax	0:66300c77c6e9	86	* @param p the pbuf chaing packet to send
tax	0:66300c77c6e9	87	* @param ipaddr the ip address to send the packet to (not used for slipif)
tax	0:66300c77c6e9	88	* @return always returns ERR_OK since the serial layer does not provide return values
tax	0:66300c77c6e9	89	*/
tax	0:66300c77c6e9	90	err_t
tax	0:66300c77c6e9	91	slipif_output(struct netif netif, struct pbuf p, ip_addr_t *ipaddr)
tax	0:66300c77c6e9	92	{
tax	0:66300c77c6e9	93	struct slipif_priv *priv;
tax	0:66300c77c6e9	94	struct pbuf *q;
tax	0:66300c77c6e9	95	u16_t i;
tax	0:66300c77c6e9	96	u8_t c;
tax	0:66300c77c6e9	97
tax	0:66300c77c6e9	98	LWIP_ASSERT("netif != NULL", (netif != NULL));
tax	0:66300c77c6e9	99	LWIP_ASSERT("netif->state != NULL", (netif->state != NULL));
tax	0:66300c77c6e9	100	LWIP_ASSERT("p != NULL", (p != NULL));
tax	0:66300c77c6e9	101
tax	0:66300c77c6e9	102	LWIP_UNUSED_ARG(ipaddr);
tax	0:66300c77c6e9	103
tax	0:66300c77c6e9	104	priv = netif->state;
tax	0:66300c77c6e9	105
tax	0:66300c77c6e9	106	/* Send pbuf out on the serial I/O device. */
tax	0:66300c77c6e9	107	sio_send(SLIP_END, priv->sd);
tax	0:66300c77c6e9	108
tax	0:66300c77c6e9	109	for (q = p; q != NULL; q = q->next) {
tax	0:66300c77c6e9	110	for (i = 0; i < q->len; i++) {
tax	0:66300c77c6e9	111	c = ((u8_t *)q->payload)[i];
tax	0:66300c77c6e9	112	switch (c) {
tax	0:66300c77c6e9	113	case SLIP_END:
tax	0:66300c77c6e9	114	sio_send(SLIP_ESC, priv->sd);
tax	0:66300c77c6e9	115	sio_send(SLIP_ESC_END, priv->sd);
tax	0:66300c77c6e9	116	break;
tax	0:66300c77c6e9	117	case SLIP_ESC:
tax	0:66300c77c6e9	118	sio_send(SLIP_ESC, priv->sd);
tax	0:66300c77c6e9	119	sio_send(SLIP_ESC_ESC, priv->sd);
tax	0:66300c77c6e9	120	break;
tax	0:66300c77c6e9	121	default:
tax	0:66300c77c6e9	122	sio_send(c, priv->sd);
tax	0:66300c77c6e9	123	break;
tax	0:66300c77c6e9	124	}
tax	0:66300c77c6e9	125	}
tax	0:66300c77c6e9	126	}
tax	0:66300c77c6e9	127	sio_send(SLIP_END, priv->sd);
tax	0:66300c77c6e9	128	return ERR_OK;
tax	0:66300c77c6e9	129	}
tax	0:66300c77c6e9	130
tax	0:66300c77c6e9	131	/**
tax	0:66300c77c6e9	132	* Static function for easy use of blockig or non-blocking
tax	0:66300c77c6e9	133	* sio_read
tax	0:66300c77c6e9	134	*
tax	0:66300c77c6e9	135	* @param fd serial device handle
tax	0:66300c77c6e9	136	* @param data pointer to data buffer for receiving
tax	0:66300c77c6e9	137	* @param len maximum length (in bytes) of data to receive
tax	0:66300c77c6e9	138	* @param block if 1, call sio_read; if 0, call sio_tryread
tax	0:66300c77c6e9	139	* @return return value of sio_read of sio_tryread
tax	0:66300c77c6e9	140	*/
tax	0:66300c77c6e9	141	static u32_t
tax	0:66300c77c6e9	142	slip_sio_read(sio_fd_t fd, u8_t* data, u32_t len, u8_t block)
tax	0:66300c77c6e9	143	{
tax	0:66300c77c6e9	144	if (block) {
tax	0:66300c77c6e9	145	return sio_read(fd, data, len);
tax	0:66300c77c6e9	146	} else {
tax	0:66300c77c6e9	147	return sio_tryread(fd, data, len);
tax	0:66300c77c6e9	148	}
tax	0:66300c77c6e9	149	}
tax	0:66300c77c6e9	150
tax	0:66300c77c6e9	151	/**
tax	0:66300c77c6e9	152	* Handle the incoming SLIP stream character by character
tax	0:66300c77c6e9	153	*
tax	0:66300c77c6e9	154	* Poll the serial layer by calling sio_read() or sio_tryread().
tax	0:66300c77c6e9	155	*
tax	0:66300c77c6e9	156	* @param netif the lwip network interface structure for this slipif
tax	0:66300c77c6e9	157	* @param block if 1, block until data is received; if 0, return when all data
tax	0:66300c77c6e9	158	* from the buffer is received (multiple calls to this function will
tax	0:66300c77c6e9	159	* return a complete packet, NULL is returned before - used for polling)
tax	0:66300c77c6e9	160	* @return The IP packet when SLIP_END is received
tax	0:66300c77c6e9	161	*/
tax	0:66300c77c6e9	162	static struct pbuf *
tax	0:66300c77c6e9	163	slipif_input(struct netif *netif, u8_t block)
tax	0:66300c77c6e9	164	{
tax	0:66300c77c6e9	165	struct slipif_priv *priv;
tax	0:66300c77c6e9	166	u8_t c;
tax	0:66300c77c6e9	167	struct pbuf *t;
tax	0:66300c77c6e9	168
tax	0:66300c77c6e9	169	LWIP_ASSERT("netif != NULL", (netif != NULL));
tax	0:66300c77c6e9	170	LWIP_ASSERT("netif->state != NULL", (netif->state != NULL));
tax	0:66300c77c6e9	171
tax	0:66300c77c6e9	172	priv = netif->state;
tax	0:66300c77c6e9	173
tax	0:66300c77c6e9	174	while (slip_sio_read(priv->sd, &c, 1, block) > 0) {
tax	0:66300c77c6e9	175	switch (priv->state) {
tax	0:66300c77c6e9	176	case SLIP_RECV_NORMAL:
tax	0:66300c77c6e9	177	switch (c) {
tax	0:66300c77c6e9	178	case SLIP_END:
tax	0:66300c77c6e9	179	if (priv->recved > 0) {
tax	0:66300c77c6e9	180	/* Received whole packet. */
tax	0:66300c77c6e9	181	/* Trim the pbuf to the size of the received packet. */
tax	0:66300c77c6e9	182	pbuf_realloc(priv->q, priv->recved);
tax	0:66300c77c6e9	183
tax	0:66300c77c6e9	184	LINK_STATS_INC(link.recv);
tax	0:66300c77c6e9	185
tax	0:66300c77c6e9	186	LWIP_DEBUGF(SLIP_DEBUG, ("slipif: Got packet\n"));
tax	0:66300c77c6e9	187	t = priv->q;
tax	0:66300c77c6e9	188	priv->p = priv->q = NULL;
tax	0:66300c77c6e9	189	priv->i = priv->recved = 0;
tax	0:66300c77c6e9	190	return t;
tax	0:66300c77c6e9	191	}
tax	0:66300c77c6e9	192	continue;
tax	0:66300c77c6e9	193	case SLIP_ESC:
tax	0:66300c77c6e9	194	priv->state = SLIP_RECV_ESCAPE;
tax	0:66300c77c6e9	195	continue;
tax	0:66300c77c6e9	196	}
tax	0:66300c77c6e9	197	break;
tax	0:66300c77c6e9	198	case SLIP_RECV_ESCAPE:
tax	0:66300c77c6e9	199	switch (c) {
tax	0:66300c77c6e9	200	case SLIP_ESC_END:
tax	0:66300c77c6e9	201	c = SLIP_END;
tax	0:66300c77c6e9	202	break;
tax	0:66300c77c6e9	203	case SLIP_ESC_ESC:
tax	0:66300c77c6e9	204	c = SLIP_ESC;
tax	0:66300c77c6e9	205	break;
tax	0:66300c77c6e9	206	}
tax	0:66300c77c6e9	207	priv->state = SLIP_RECV_NORMAL;
tax	0:66300c77c6e9	208	/* FALLTHROUGH */
tax	0:66300c77c6e9	209	}
tax	0:66300c77c6e9	210
tax	0:66300c77c6e9	211	/* byte received, packet not yet completely received */
tax	0:66300c77c6e9	212	if (priv->p == NULL) {
tax	0:66300c77c6e9	213	/* allocate a new pbuf */
tax	0:66300c77c6e9	214	LWIP_DEBUGF(SLIP_DEBUG, ("slipif_input: alloc\n"));
tax	0:66300c77c6e9	215	priv->p = pbuf_alloc(PBUF_LINK, (PBUF_POOL_BUFSIZE - PBUF_LINK_HLEN), PBUF_POOL);
tax	0:66300c77c6e9	216
tax	0:66300c77c6e9	217	if (priv->p == NULL) {
tax	0:66300c77c6e9	218	LINK_STATS_INC(link.drop);
tax	0:66300c77c6e9	219	LWIP_DEBUGF(SLIP_DEBUG, ("slipif_input: no new pbuf! (DROP)\n"));
tax	0:66300c77c6e9	220	/* don't process any further since we got no pbuf to receive to */
tax	0:66300c77c6e9	221	break;
tax	0:66300c77c6e9	222	}
tax	0:66300c77c6e9	223
tax	0:66300c77c6e9	224	if (priv->q != NULL) {
tax	0:66300c77c6e9	225	/* 'chain' the pbuf to the existing chain */
tax	0:66300c77c6e9	226	pbuf_cat(priv->q, priv->p);
tax	0:66300c77c6e9	227	} else {
tax	0:66300c77c6e9	228	/* p is the first pbuf in the chain */
tax	0:66300c77c6e9	229	priv->q = priv->p;
tax	0:66300c77c6e9	230	}
tax	0:66300c77c6e9	231	}
tax	0:66300c77c6e9	232
tax	0:66300c77c6e9	233	/* this automatically drops bytes if > SLIP_MAX_SIZE */
tax	0:66300c77c6e9	234	if ((priv->p != NULL) && (priv->recved <= SLIP_MAX_SIZE)) {
tax	0:66300c77c6e9	235	((u8_t *)priv->p->payload)[priv->i] = c;
tax	0:66300c77c6e9	236	priv->recved++;
tax	0:66300c77c6e9	237	priv->i++;
tax	0:66300c77c6e9	238	if (priv->i >= priv->p->len) {
tax	0:66300c77c6e9	239	/* on to the next pbuf */
tax	0:66300c77c6e9	240	priv->i = 0;
tax	0:66300c77c6e9	241	if (priv->p->next != NULL && priv->p->next->len > 0) {
tax	0:66300c77c6e9	242	/* p is a chain, on to the next in the chain */
tax	0:66300c77c6e9	243	priv->p = priv->p->next;
tax	0:66300c77c6e9	244	} else {
tax	0:66300c77c6e9	245	/* p is a single pbuf, set it to NULL so next time a new
tax	0:66300c77c6e9	246	* pbuf is allocated */
tax	0:66300c77c6e9	247	priv->p = NULL;
tax	0:66300c77c6e9	248	}
tax	0:66300c77c6e9	249	}
tax	0:66300c77c6e9	250	}
tax	0:66300c77c6e9	251	}
tax	0:66300c77c6e9	252
tax	0:66300c77c6e9	253	return NULL;
tax	0:66300c77c6e9	254	}
tax	0:66300c77c6e9	255
tax	0:66300c77c6e9	256	#if !NO_SYS
tax	0:66300c77c6e9	257	/**
tax	0:66300c77c6e9	258	* The SLIP input thread.
tax	0:66300c77c6e9	259	*
tax	0:66300c77c6e9	260	* Feed the IP layer with incoming packets
tax	0:66300c77c6e9	261	*
tax	0:66300c77c6e9	262	* @param nf the lwip network interface structure for this slipif
tax	0:66300c77c6e9	263	*/
tax	0:66300c77c6e9	264	static void
tax	0:66300c77c6e9	265	slipif_loop_thread(void *nf)
tax	0:66300c77c6e9	266	{
tax	0:66300c77c6e9	267	struct pbuf *p;
tax	0:66300c77c6e9	268	struct netif netif = (struct netif )nf;
tax	0:66300c77c6e9	269
tax	0:66300c77c6e9	270	while (1) {
tax	0:66300c77c6e9	271	p = slipif_input(netif, SLIP_BLOCK);
tax	0:66300c77c6e9	272	if (p != NULL) {
tax	0:66300c77c6e9	273	if (netif->input(p, netif) != ERR_OK) {
tax	0:66300c77c6e9	274	pbuf_free(p);
tax	0:66300c77c6e9	275	p = NULL;
tax	0:66300c77c6e9	276	}
tax	0:66300c77c6e9	277	}
tax	0:66300c77c6e9	278	}
tax	0:66300c77c6e9	279	}
tax	0:66300c77c6e9	280	#endif /* !NO_SYS */
tax	0:66300c77c6e9	281
tax	0:66300c77c6e9	282	/**
tax	0:66300c77c6e9	283	* SLIP netif initialization
tax	0:66300c77c6e9	284	*
tax	0:66300c77c6e9	285	* Call the arch specific sio_open and remember
tax	0:66300c77c6e9	286	* the opened device in the state field of the netif.
tax	0:66300c77c6e9	287	*
tax	0:66300c77c6e9	288	* @param netif the lwip network interface structure for this slipif
tax	0:66300c77c6e9	289	* @return ERR_OK if serial line could be opened,
tax	0:66300c77c6e9	290	* ERR_MEM if no memory could be allocated,
tax	0:66300c77c6e9	291	* ERR_IF is serial line couldn't be opened
tax	0:66300c77c6e9	292	*
tax	0:66300c77c6e9	293	* @note netif->num must contain the number of the serial port to open
tax	0:66300c77c6e9	294	* (0 by default)
tax	0:66300c77c6e9	295	*/
tax	0:66300c77c6e9	296	err_t
tax	0:66300c77c6e9	297	slipif_init(struct netif *netif)
tax	0:66300c77c6e9	298	{
tax	0:66300c77c6e9	299	struct slipif_priv *priv;
tax	0:66300c77c6e9	300
tax	0:66300c77c6e9	301	LWIP_DEBUGF(SLIP_DEBUG, ("slipif_init: netif->num=%"U16_F"\n", (u16_t)netif->num));
tax	0:66300c77c6e9	302
tax	0:66300c77c6e9	303	/* Allocate private data */
tax	0:66300c77c6e9	304	priv = mem_malloc(sizeof(struct slipif_priv));
tax	0:66300c77c6e9	305	if (!priv) {
tax	0:66300c77c6e9	306	return ERR_MEM;
tax	0:66300c77c6e9	307	}
tax	0:66300c77c6e9	308
tax	0:66300c77c6e9	309	netif->name[0] = 's';
tax	0:66300c77c6e9	310	netif->name[1] = 'l';
tax	0:66300c77c6e9	311	netif->output = slipif_output;
tax	0:66300c77c6e9	312	netif->mtu = SLIP_MAX_SIZE;
tax	0:66300c77c6e9	313	netif->flags \|= NETIF_FLAG_POINTTOPOINT;
tax	0:66300c77c6e9	314
tax	0:66300c77c6e9	315	/* Try to open the serial port (netif->num contains the port number). */
tax	0:66300c77c6e9	316	priv->sd = sio_open(netif->num);
tax	0:66300c77c6e9	317	if (!priv->sd) {
tax	0:66300c77c6e9	318	/* Opening the serial port failed. */
tax	0:66300c77c6e9	319	mem_free(priv);
tax	0:66300c77c6e9	320	return ERR_IF;
tax	0:66300c77c6e9	321	}
tax	0:66300c77c6e9	322
tax	0:66300c77c6e9	323	/* Initialize private data */
tax	0:66300c77c6e9	324	priv->p = NULL;
tax	0:66300c77c6e9	325	priv->q = NULL;
tax	0:66300c77c6e9	326	priv->state = SLIP_RECV_NORMAL;
tax	0:66300c77c6e9	327	priv->i = 0;
tax	0:66300c77c6e9	328	priv->recved = 0;
tax	0:66300c77c6e9	329
tax	0:66300c77c6e9	330	netif->state = priv;
tax	0:66300c77c6e9	331
tax	0:66300c77c6e9	332	/* initialize the snmp variables and counters inside the struct netif
tax	0:66300c77c6e9	333	* ifSpeed: no assumption can be made without knowing more about the
tax	0:66300c77c6e9	334	* serial line!
tax	0:66300c77c6e9	335	*/
tax	0:66300c77c6e9	336	NETIF_INIT_SNMP(netif, snmp_ifType_slip, 0);
tax	0:66300c77c6e9	337
tax	0:66300c77c6e9	338	/* Create a thread to poll the serial line. */
tax	0:66300c77c6e9	339	sys_thread_new(SLIPIF_THREAD_NAME, slipif_loop_thread, netif,
tax	0:66300c77c6e9	340	SLIPIF_THREAD_STACKSIZE, SLIPIF_THREAD_PRIO);
tax	0:66300c77c6e9	341	return ERR_OK;
tax	0:66300c77c6e9	342	}
tax	0:66300c77c6e9	343
tax	0:66300c77c6e9	344	/**
tax	0:66300c77c6e9	345	* Polls the serial device and feeds the IP layer with incoming packets.
tax	0:66300c77c6e9	346	*
tax	0:66300c77c6e9	347	* @param netif The lwip network interface structure for this slipif
tax	0:66300c77c6e9	348	*/
tax	0:66300c77c6e9	349	void
tax	0:66300c77c6e9	350	slipif_poll(struct netif *netif)
tax	0:66300c77c6e9	351	{
tax	0:66300c77c6e9	352	struct pbuf *p;
tax	0:66300c77c6e9	353	struct slipif_priv *priv;
tax	0:66300c77c6e9	354
tax	0:66300c77c6e9	355	LWIP_ASSERT("netif != NULL", (netif != NULL));
tax	0:66300c77c6e9	356	LWIP_ASSERT("netif->state != NULL", (netif->state != NULL));
tax	0:66300c77c6e9	357
tax	0:66300c77c6e9	358	priv = netif->state;
tax	0:66300c77c6e9	359
tax	0:66300c77c6e9	360	while ((p = slipif_input(netif, SLIP_DONTBLOCK)) != NULL) {
tax	0:66300c77c6e9	361	if (netif->input(p, netif) != ERR_OK) {
tax	0:66300c77c6e9	362	pbuf_free(p);
tax	0:66300c77c6e9	363	}
tax	0:66300c77c6e9	364	}
tax	0:66300c77c6e9	365	}
tax	0:66300c77c6e9	366
tax	0:66300c77c6e9	367	#endif /* LWIP_HAVE_SLIPIF */

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	29 Mar 2011
Imports:	16
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	1
Followers:	2

lwip/netif/slipif.c@0:66300c77c6e9, 2011-03-29 (annotated)

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