2 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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3 * All rights reserved.
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5 * Redistribution and use in source and binary forms, with or without modification,
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6 * are permitted provided that the following conditions are met:
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8 * 1. Redistributions of source code must retain the above copyright notice,
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9 * this list of conditions and the following disclaimer.
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10 * 2. Redistributions in binary form must reproduce the above copyright notice,
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11 * this list of conditions and the following disclaimer in the documentation
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12 * and/or other materials provided with the distribution.
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13 * 3. The name of the author may not be used to endorse or promote products
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14 * derived from this software without specific prior written permission.
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16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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19 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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21 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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27 * This file is part of the lwIP TCP/IP stack.
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29 * Author: Adam Dunkels <adam@sics.se>
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33 #include "lwip/opt.h"
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35 #include "lwip/sys.h"
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37 #include "lwip/memp.h"
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38 #include "lwip/pbuf.h"
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40 #include "lwip/ip.h"
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41 #include "lwip/ip_frag.h"
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42 #include "lwip/udp.h"
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43 #include "lwip/tcp.h"
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45 #include "lwip/tcpip.h"
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47 static void (* tcpip_init_done)(void *arg) = NULL;
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48 static void *tcpip_init_done_arg;
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49 static sys_mbox_t mbox;
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52 static int tcpip_tcp_timer_active = 0;
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55 tcpip_tcp_timer(void *arg)
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59 /* call TCP timer handler */
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61 /* timer still needed? */
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62 if (tcp_active_pcbs || tcp_tw_pcbs) {
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64 sys_timeout(TCP_TMR_INTERVAL, tcpip_tcp_timer, NULL);
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67 tcpip_tcp_timer_active = 0;
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73 tcp_timer_needed(void)
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75 /* timer is off but needed again? */
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76 if (!tcpip_tcp_timer_active && (tcp_active_pcbs || tcp_tw_pcbs)) {
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77 /* enable and start timer */
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78 tcpip_tcp_timer_active = 1;
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79 sys_timeout(TCP_TMR_INTERVAL, tcpip_tcp_timer, NULL);
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82 #endif /* !NO_SYS */
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83 #endif /* LWIP_TCP */
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87 ip_timer(void *data)
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89 LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip: ip_reass_tmr()\n"));
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91 sys_timeout(1000, ip_timer, NULL);
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96 tcpip_thread(void *arg)
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98 struct tcpip_msg *msg;
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110 sys_timeout(1000, ip_timer, NULL);
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112 if (tcpip_init_done != NULL) {
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113 tcpip_init_done(tcpip_init_done_arg);
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116 while (1) { /* MAIN Loop */
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117 sys_mbox_fetch(mbox, (void *)&msg);
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118 switch (msg->type) {
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119 case TCPIP_MSG_API:
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120 LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: API message %p\n", (void *)msg));
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121 api_msg_input(msg->msg.apimsg);
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123 case TCPIP_MSG_INPUT:
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124 LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: IP packet %p\n", (void *)msg));
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125 ip_input(msg->msg.inp.p, msg->msg.inp.netif);
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127 case TCPIP_MSG_CALLBACK:
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128 LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: CALLBACK %p\n", (void *)msg));
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129 msg->msg.cb.f(msg->msg.cb.ctx);
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134 memp_free(MEMP_TCPIP_MSG, msg);
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139 tcpip_input(struct pbuf *p, struct netif *inp)
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141 struct tcpip_msg *msg;
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143 msg = memp_malloc(MEMP_TCPIP_MSG);
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149 msg->type = TCPIP_MSG_INPUT;
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150 msg->msg.inp.p = p;
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151 msg->msg.inp.netif = inp;
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152 sys_mbox_post(mbox, msg);
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157 tcpip_callback(void (*f)(void *ctx), void *ctx)
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159 struct tcpip_msg *msg;
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161 msg = memp_malloc(MEMP_TCPIP_MSG);
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166 msg->type = TCPIP_MSG_CALLBACK;
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168 msg->msg.cb.ctx = ctx;
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169 sys_mbox_post(mbox, msg);
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174 tcpip_apimsg(struct api_msg *apimsg)
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176 struct tcpip_msg *msg;
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177 msg = memp_malloc(MEMP_TCPIP_MSG);
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179 memp_free(MEMP_API_MSG, apimsg);
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182 msg->type = TCPIP_MSG_API;
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183 msg->msg.apimsg = apimsg;
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184 sys_mbox_post(mbox, msg);
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188 tcpip_init(void (* initfunc)(void *), void *arg)
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190 tcpip_init_done = initfunc;
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191 tcpip_init_done_arg = arg;
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192 mbox = sys_mbox_new();
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193 sys_thread_new(tcpip_thread, NULL, TCPIP_THREAD_PRIO);
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