| /** |
| * @file |
| * TCPIP API internal implementations (do not use in application code) |
| */ |
| |
| /* |
| * 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_HDR_TCPIP_PRIV_H |
| #define LWIP_HDR_TCPIP_PRIV_H |
| |
| #include "lwip/opt.h" |
| |
| #if !NO_SYS /* don't build if not configured for use in lwipopts.h */ |
| |
| #include "lwip/tcpip.h" |
| #include "lwip/sys.h" |
| #include "lwip/timeouts.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| struct pbuf; |
| struct netif; |
| |
| #if LWIP_MPU_COMPATIBLE |
| #define API_VAR_REF(name) (*(name)) |
| #define API_VAR_DECLARE(type, name) type * name |
| #define API_VAR_ALLOC_EXT(type, pool, name, errorblock) do { \ |
| name = (type *)memp_malloc(pool); \ |
| if (name == NULL) { \ |
| errorblock; \ |
| } \ |
| } while(0) |
| #define API_VAR_ALLOC(type, pool, name, errorval) API_VAR_ALLOC_EXT(type, pool, name, return errorval) |
| #define API_VAR_ALLOC_POOL(type, pool, name, errorval) do { \ |
| name = (type *)LWIP_MEMPOOL_ALLOC(pool); \ |
| if (name == NULL) { \ |
| return errorval; \ |
| } \ |
| } while(0) |
| #define API_VAR_FREE(pool, name) memp_free(pool, name) |
| #define API_VAR_FREE_POOL(pool, name) LWIP_MEMPOOL_FREE(pool, name) |
| #define API_EXPR_REF(expr) (&(expr)) |
| #if LWIP_NETCONN_SEM_PER_THREAD |
| #define API_EXPR_REF_SEM(expr) (expr) |
| #else |
| #define API_EXPR_REF_SEM(expr) API_EXPR_REF(expr) |
| #endif |
| #define API_EXPR_DEREF(expr) expr |
| #define API_MSG_M_DEF(m) m |
| #define API_MSG_M_DEF_C(t, m) t m |
| #else /* LWIP_MPU_COMPATIBLE */ |
| #define API_VAR_REF(name) name |
| #define API_VAR_DECLARE(type, name) type name |
| #define API_VAR_ALLOC_EXT(type, pool, name, errorblock) |
| #define API_VAR_ALLOC(type, pool, name, errorval) |
| #define API_VAR_ALLOC_POOL(type, pool, name, errorval) |
| #define API_VAR_FREE(pool, name) |
| #define API_VAR_FREE_POOL(pool, name) |
| #define API_EXPR_REF(expr) expr |
| #define API_EXPR_REF_SEM(expr) API_EXPR_REF(expr) |
| #define API_EXPR_DEREF(expr) (*(expr)) |
| #define API_MSG_M_DEF(m) *m |
| #define API_MSG_M_DEF_C(t, m) const t * m |
| #endif /* LWIP_MPU_COMPATIBLE */ |
| |
| err_t tcpip_send_msg_wait_sem(tcpip_callback_fn fn, void *apimsg, sys_sem_t* sem); |
| |
| struct tcpip_api_call_data |
| { |
| #if !LWIP_TCPIP_CORE_LOCKING |
| err_t err; |
| #if !LWIP_NETCONN_SEM_PER_THREAD |
| sys_sem_t sem; |
| #endif /* LWIP_NETCONN_SEM_PER_THREAD */ |
| #else /* !LWIP_TCPIP_CORE_LOCKING */ |
| u8_t dummy; /* avoid empty struct :-( */ |
| #endif /* !LWIP_TCPIP_CORE_LOCKING */ |
| }; |
| typedef err_t (*tcpip_api_call_fn)(struct tcpip_api_call_data* call); |
| err_t tcpip_api_call(tcpip_api_call_fn fn, struct tcpip_api_call_data *call); |
| |
| enum tcpip_msg_type { |
| #if !LWIP_TCPIP_CORE_LOCKING |
| TCPIP_MSG_API, |
| TCPIP_MSG_API_CALL, |
| #endif /* !LWIP_TCPIP_CORE_LOCKING */ |
| #if !LWIP_TCPIP_CORE_LOCKING_INPUT |
| TCPIP_MSG_INPKT, |
| #endif /* !LWIP_TCPIP_CORE_LOCKING_INPUT */ |
| #if LWIP_TCPIP_TIMEOUT && LWIP_TIMERS |
| TCPIP_MSG_TIMEOUT, |
| TCPIP_MSG_UNTIMEOUT, |
| #endif /* LWIP_TCPIP_TIMEOUT && LWIP_TIMERS */ |
| TCPIP_MSG_CALLBACK, |
| TCPIP_MSG_CALLBACK_STATIC |
| }; |
| |
| struct tcpip_msg { |
| enum tcpip_msg_type type; |
| union { |
| #if !LWIP_TCPIP_CORE_LOCKING |
| struct { |
| tcpip_callback_fn function; |
| void* msg; |
| } api_msg; |
| struct { |
| tcpip_api_call_fn function; |
| struct tcpip_api_call_data *arg; |
| sys_sem_t *sem; |
| } api_call; |
| #endif /* LWIP_TCPIP_CORE_LOCKING */ |
| #if !LWIP_TCPIP_CORE_LOCKING_INPUT |
| struct { |
| struct pbuf *p; |
| struct netif *netif; |
| netif_input_fn input_fn; |
| } inp; |
| #endif /* !LWIP_TCPIP_CORE_LOCKING_INPUT */ |
| struct { |
| tcpip_callback_fn function; |
| void *ctx; |
| } cb; |
| #if LWIP_TCPIP_TIMEOUT && LWIP_TIMERS |
| struct { |
| u32_t msecs; |
| sys_timeout_handler h; |
| void *arg; |
| } tmo; |
| #endif /* LWIP_TCPIP_TIMEOUT && LWIP_TIMERS */ |
| } msg; |
| }; |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* !NO_SYS */ |
| |
| #endif /* LWIP_HDR_TCPIP_PRIV_H */ |