Marco Zecchini
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Example_RTOS
Rtos API example
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tcpip_priv.h
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00001 /** 00002 * @file 00003 * TCPIP API internal implementations (do not use in application code) 00004 */ 00005 00006 /* 00007 * Copyright (c) 2001-2004 Swedish Institute of Computer Science. 00008 * All rights reserved. 00009 * 00010 * Redistribution and use in source and binary forms, with or without modification, 00011 * are permitted provided that the following conditions are met: 00012 * 00013 * 1. Redistributions of source code must retain the above copyright notice, 00014 * this list of conditions and the following disclaimer. 00015 * 2. Redistributions in binary form must reproduce the above copyright notice, 00016 * this list of conditions and the following disclaimer in the documentation 00017 * and/or other materials provided with the distribution. 00018 * 3. The name of the author may not be used to endorse or promote products 00019 * derived from this software without specific prior written permission. 00020 * 00021 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 00022 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 00023 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 00024 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 00025 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 00026 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00027 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00028 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 00029 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 00030 * OF SUCH DAMAGE. 00031 * 00032 * This file is part of the lwIP TCP/IP stack. 00033 * 00034 * Author: Adam Dunkels <adam@sics.se> 00035 * 00036 */ 00037 #ifndef LWIP_HDR_TCPIP_PRIV_H 00038 #define LWIP_HDR_TCPIP_PRIV_H 00039 00040 #include "lwip/opt.h" 00041 00042 #if !NO_SYS /* don't build if not configured for use in lwipopts.h */ 00043 00044 #include "lwip/tcpip.h" 00045 #include "lwip/sys.h" 00046 #include "lwip/timeouts.h" 00047 00048 #ifdef __cplusplus 00049 extern "C" { 00050 #endif 00051 00052 struct pbuf; 00053 struct netif; 00054 00055 #if LWIP_MPU_COMPATIBLE 00056 #define API_VAR_REF(name) (*(name)) 00057 #define API_VAR_DECLARE(type, name) type * name 00058 #define API_VAR_ALLOC(type, pool, name, errorval) do { \ 00059 name = (type *)memp_malloc(pool); \ 00060 if (name == NULL) { \ 00061 return errorval; \ 00062 } \ 00063 } while(0) 00064 #define API_VAR_ALLOC_POOL(type, pool, name, errorval) do { \ 00065 name = (type *)LWIP_MEMPOOL_ALLOC(pool); \ 00066 if (name == NULL) { \ 00067 return errorval; \ 00068 } \ 00069 } while(0) 00070 #define API_VAR_FREE(pool, name) memp_free(pool, name) 00071 #define API_VAR_FREE_POOL(pool, name) LWIP_MEMPOOL_FREE(pool, name) 00072 #define API_EXPR_REF(expr) (&(expr)) 00073 #if LWIP_NETCONN_SEM_PER_THREAD 00074 #define API_EXPR_REF_SEM(expr) (expr) 00075 #else 00076 #define API_EXPR_REF_SEM(expr) API_EXPR_REF(expr) 00077 #endif 00078 #define API_EXPR_DEREF(expr) expr 00079 #define API_MSG_M_DEF(m) m 00080 #define API_MSG_M_DEF_C(t, m) t m 00081 #else /* LWIP_MPU_COMPATIBLE */ 00082 #define API_VAR_REF(name) name 00083 #define API_VAR_DECLARE(type, name) type name 00084 #define API_VAR_ALLOC(type, pool, name, errorval) 00085 #define API_VAR_ALLOC_POOL(type, pool, name, errorval) 00086 #define API_VAR_FREE(pool, name) 00087 #define API_VAR_FREE_POOL(pool, name) 00088 #define API_EXPR_REF(expr) expr 00089 #define API_EXPR_REF_SEM(expr) API_EXPR_REF(expr) 00090 #define API_EXPR_DEREF(expr) (*(expr)) 00091 #define API_MSG_M_DEF(m) *m 00092 #define API_MSG_M_DEF_C(t, m) const t * m 00093 #endif /* LWIP_MPU_COMPATIBLE */ 00094 00095 err_t tcpip_send_msg_wait_sem(tcpip_callback_fn fn, void *apimsg, sys_sem_t* sem); 00096 00097 struct tcpip_api_call_data 00098 { 00099 #if !LWIP_TCPIP_CORE_LOCKING 00100 err_t err; 00101 #if !LWIP_NETCONN_SEM_PER_THREAD 00102 sys_sem_t sem; 00103 #endif /* LWIP_NETCONN_SEM_PER_THREAD */ 00104 #else /* !LWIP_TCPIP_CORE_LOCKING */ 00105 u8_t dummy; /* avoid empty struct :-( */ 00106 #endif /* !LWIP_TCPIP_CORE_LOCKING */ 00107 }; 00108 typedef err_t (*tcpip_api_call_fn)(struct tcpip_api_call_data* call); 00109 err_t tcpip_api_call(tcpip_api_call_fn fn, struct tcpip_api_call_data *call); 00110 00111 enum tcpip_msg_type { 00112 TCPIP_MSG_API, 00113 TCPIP_MSG_API_CALL, 00114 TCPIP_MSG_INPKT, 00115 #if LWIP_TCPIP_TIMEOUT && LWIP_TIMERS 00116 TCPIP_MSG_TIMEOUT, 00117 TCPIP_MSG_UNTIMEOUT, 00118 #endif /* LWIP_TCPIP_TIMEOUT && LWIP_TIMERS */ 00119 TCPIP_MSG_CALLBACK, 00120 TCPIP_MSG_CALLBACK_STATIC 00121 }; 00122 00123 struct tcpip_msg { 00124 enum tcpip_msg_type type; 00125 union { 00126 struct { 00127 tcpip_callback_fn function; 00128 void* msg; 00129 } api_msg; 00130 struct { 00131 tcpip_api_call_fn function; 00132 struct tcpip_api_call_data *arg; 00133 sys_sem_t *sem; 00134 } api_call; 00135 struct { 00136 struct pbuf *p; 00137 struct netif *netif; 00138 netif_input_fn input_fn; 00139 } inp; 00140 struct { 00141 tcpip_callback_fn function; 00142 void *ctx; 00143 } cb; 00144 #if LWIP_TCPIP_TIMEOUT && LWIP_TIMERS 00145 struct { 00146 u32_t msecs; 00147 sys_timeout_handler h; 00148 void *arg; 00149 } tmo; 00150 #endif /* LWIP_TCPIP_TIMEOUT && LWIP_TIMERS */ 00151 } msg; 00152 }; 00153 00154 #ifdef __cplusplus 00155 } 00156 #endif 00157 00158 #endif /* !NO_SYS */ 00159 00160 #endif /* LWIP_HDR_TCPIP_PRIV_H */
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