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