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[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Demo/] [Common/] [ethernet/] [lwIP_130/] [src/] [include/] [lwip/] [api_msg.h] - Rev 610
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/* * Copyright (c) 2001-2004 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> * */ #ifndef __LWIP_API_MSG_H__ #define __LWIP_API_MSG_H__ #include "lwip/opt.h" #if LWIP_NETCONN /* don't build if not configured for use in lwipopts.h */ #include "lwip/ip_addr.h" #include "lwip/err.h" #include "lwip/sys.h" #include "lwip/igmp.h" #include "lwip/api.h" #ifdef __cplusplus extern "C" { #endif /* IP addresses and port numbers are expected to be in * the same byte order as in the corresponding pcb. */ /** This struct includes everything that is necessary to execute a function for a netconn in another thread context (mainly used to process netconns in the tcpip_thread context to be thread safe). */ struct api_msg_msg { /** The netconn which to process - always needed: it includes the semaphore which is used to block the application thread until the function finished. */ struct netconn *conn; /** Depending on the executed function, one of these union members is used */ union { /** used for do_send */ struct netbuf *b; /** used for do_newconn */ struct { u8_t proto; } n; /** used for do_bind and do_connect */ struct { struct ip_addr *ipaddr; u16_t port; } bc; /** used for do_getaddr */ struct { struct ip_addr *ipaddr; u16_t *port; u8_t local; } ad; /** used for do_write */ struct { const void *dataptr; int len; u8_t apiflags; } w; /** used ofr do_recv */ struct { u16_t len; } r; #if LWIP_IGMP /** used for do_join_leave_group */ struct { struct ip_addr *multiaddr; struct ip_addr *interface; enum netconn_igmp join_or_leave; } jl; #endif /* LWIP_IGMP */ #if TCP_LISTEN_BACKLOG struct { u8_t backlog; } lb; #endif /* TCP_LISTEN_BACKLOG */ } msg; }; /** This struct contains a function to execute in another thread context and a struct api_msg_msg that serves as an argument for this function. This is passed to tcpip_apimsg to execute functions in tcpip_thread context. */ struct api_msg { /** function to execute in tcpip_thread context */ void (* function)(struct api_msg_msg *msg); /** arguments for this function */ struct api_msg_msg msg; }; #if LWIP_DNS /** As do_gethostbyname requires more arguments but doesn't require a netconn, it has its own struct (to avoid struct api_msg getting bigger than necessary). do_gethostbyname must be called using tcpip_callback instead of tcpip_apimsg (see netconn_gethostbyname). */ struct dns_api_msg { /** Hostname to query or dotted IP address string */ const char *name; /** Rhe resolved address is stored here */ struct ip_addr *addr; /** This semaphore is posted when the name is resolved, the application thread should wait on it. */ sys_sem_t sem; /** Errors are given back here */ err_t *err; }; #endif /* LWIP_DNS */ void do_newconn ( struct api_msg_msg *msg); void do_delconn ( struct api_msg_msg *msg); void do_bind ( struct api_msg_msg *msg); void do_connect ( struct api_msg_msg *msg); void do_disconnect ( struct api_msg_msg *msg); void do_listen ( struct api_msg_msg *msg); void do_send ( struct api_msg_msg *msg); void do_recv ( struct api_msg_msg *msg); void do_write ( struct api_msg_msg *msg); void do_getaddr ( struct api_msg_msg *msg); void do_close ( struct api_msg_msg *msg); #if LWIP_IGMP void do_join_leave_group( struct api_msg_msg *msg); #endif /* LWIP_IGMP */ #if LWIP_DNS void do_gethostbyname(void *arg); #endif /* LWIP_DNS */ struct netconn* netconn_alloc(enum netconn_type t, netconn_callback callback); void netconn_free(struct netconn *conn); #ifdef __cplusplus } #endif #endif /* LWIP_NETCONN */ #endif /* __LWIP_API_MSG_H__ */
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