| /* |
| * Copyright (c) 2001-2003 Swedish Institute of Computer Science. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without modification, |
| * are permitted provided that the following conditions are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright notice, |
| * this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright notice, |
| * this list of conditions and the following disclaimer in the documentation |
| * and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT |
| * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT |
| * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
| * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY |
| * OF SUCH DAMAGE. |
| * |
| * This file is part of the lwIP TCP/IP stack. |
| * |
| * Author: Adam Dunkels <adam@sics.se> |
| * |
| */ |
| |
| #include "lwip/opt.h" |
| |
| #include "lwip/sys.h" |
| |
| #include "lwip/memp.h" |
| #include "lwip/pbuf.h" |
| |
| #include "lwip/ip.h" |
| #include "lwip/udp.h" |
| #include "lwip/tcp.h" |
| |
| #include "lwip/tcpip.h" |
| |
| static void (* tcpip_init_done)(void *arg) = NULL; |
| static void *tcpip_init_done_arg; |
| static sys_mbox_t mbox; |
| #if LWIP_TCP |
| static int tcpip_tcp_timer_active = 0; |
| |
| |
| |
| static void |
| tcpip_tcp_timer(void *arg) |
| { |
| (void)arg; |
| |
| tcp_tmr(); |
| if (tcp_active_pcbs || tcp_tw_pcbs) { |
| sys_timeout(TCP_TMR_INTERVAL, tcpip_tcp_timer, NULL); |
| } else { |
| tcpip_tcp_timer_active = 0; |
| } |
| } |
| |
| void |
| tcp_timer_needed(void) |
| { |
| if (!tcpip_tcp_timer_active && (tcp_active_pcbs || tcp_tw_pcbs)) { |
| tcpip_tcp_timer_active = 1; |
| sys_timeout(TCP_TMR_INTERVAL, tcpip_tcp_timer, NULL); |
| } |
| } |
| #endif /* LWIP_TCP */ |
| |
| static void |
| tcpip_thread(void *arg) |
| { |
| struct tcpip_msg *msg; |
| |
| (void)arg; |
| |
| ip_init(); |
| #if LWIP_UDP |
| udp_init(); |
| #endif |
| #if LWIP_TCP |
| tcp_init(); |
| #endif |
| if (tcpip_init_done != NULL) { |
| tcpip_init_done(tcpip_init_done_arg); |
| } |
| |
| while (1) { /* MAIN Loop */ |
| sys_mbox_fetch(mbox, (void *)&msg); |
| switch (msg->type) { |
| case TCPIP_MSG_API: |
| LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: API message %p\n", (void *)msg)); |
| api_msg_input(msg->msg.apimsg); |
| break; |
| case TCPIP_MSG_INPUT: |
| LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: IP packet %p\n", (void *)msg)); |
| ip_input(msg->msg.inp.p, msg->msg.inp.netif); |
| break; |
| case TCPIP_MSG_CALLBACK: |
| LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: CALLBACK %p\n", (void *)msg)); |
| msg->msg.cb.f(msg->msg.cb.ctx); |
| break; |
| default: |
| break; |
| } |
| memp_free(MEMP_TCPIP_MSG, msg); |
| } |
| } |
| |
| err_t |
| tcpip_input(struct pbuf *p, struct netif *inp) |
| { |
| struct tcpip_msg *msg; |
| |
| msg = memp_malloc(MEMP_TCPIP_MSG); |
| if (msg == NULL) { |
| pbuf_free(p); |
| return ERR_MEM; |
| } |
| |
| msg->type = TCPIP_MSG_INPUT; |
| msg->msg.inp.p = p; |
| msg->msg.inp.netif = inp; |
| sys_mbox_post(mbox, msg); |
| return ERR_OK; |
| } |
| |
| err_t |
| tcpip_callback(void (*f)(void *ctx), void *ctx) |
| { |
| struct tcpip_msg *msg; |
| |
| msg = memp_malloc(MEMP_TCPIP_MSG); |
| if (msg == NULL) { |
| return ERR_MEM; |
| } |
| |
| msg->type = TCPIP_MSG_CALLBACK; |
| msg->msg.cb.f = f; |
| msg->msg.cb.ctx = ctx; |
| sys_mbox_post(mbox, msg); |
| return ERR_OK; |
| } |
| |
| void |
| tcpip_apimsg(struct api_msg *apimsg) |
| { |
| struct tcpip_msg *msg; |
| msg = memp_malloc(MEMP_TCPIP_MSG); |
| if (msg == NULL) { |
| memp_free(MEMP_API_MSG, apimsg); |
| return; |
| } |
| msg->type = TCPIP_MSG_API; |
| msg->msg.apimsg = apimsg; |
| sys_mbox_post(mbox, msg); |
| } |
| |
| void |
| tcpip_init(void (* initfunc)(void *), void *arg) |
| { |
| tcpip_init_done = initfunc; |
| tcpip_init_done_arg = arg; |
| mbox = sys_mbox_new(); |
| sys_thread_new(tcpip_thread, NULL, TCPIP_THREAD_PRIO); |
| } |
| |
| |
| |
| |