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107 lines
3.7 KiB
C
107 lines
3.7 KiB
C
/**
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* @file
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* Functions to sync with TCPIP thread
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*/
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/*
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* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* Author: Adam Dunkels <adam@sics.se>
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*
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*/
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#ifndef LWIP_HDR_TCPIP_H
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#define LWIP_HDR_TCPIP_H
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#include "lwip/opt.h"
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#if !NO_SYS /* don't build if not configured for use in lwipopts.h */
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#include "lwip/err.h"
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#include "lwip/timeouts.h"
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#include "lwip/netif.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if LWIP_TCPIP_CORE_LOCKING
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/** The global semaphore to lock the stack. */
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extern sys_mutex_t lock_tcpip_core;
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/** Lock lwIP core mutex (needs @ref LWIP_TCPIP_CORE_LOCKING 1) */
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#define LOCK_TCPIP_CORE() sys_mutex_lock(&lock_tcpip_core)
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/** Unlock lwIP core mutex (needs @ref LWIP_TCPIP_CORE_LOCKING 1) */
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#define UNLOCK_TCPIP_CORE() sys_mutex_unlock(&lock_tcpip_core)
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#else /* LWIP_TCPIP_CORE_LOCKING */
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#define LOCK_TCPIP_CORE()
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#define UNLOCK_TCPIP_CORE()
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#endif /* LWIP_TCPIP_CORE_LOCKING */
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struct pbuf;
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struct netif;
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/** Function prototype for the init_done function passed to tcpip_init */
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typedef void (*tcpip_init_done_fn)(void *arg);
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/** Function prototype for functions passed to tcpip_callback() */
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typedef void (*tcpip_callback_fn)(void *ctx);
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/* Forward declarations */
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struct tcpip_callback_msg;
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void tcpip_init(tcpip_init_done_fn tcpip_init_done, void *arg);
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err_t tcpip_inpkt(struct pbuf *p, struct netif *inp, netif_input_fn input_fn);
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err_t tcpip_input(struct pbuf *p, struct netif *inp);
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err_t tcpip_callback_with_block(tcpip_callback_fn function, void *ctx, u8_t block);
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/**
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* @ingroup lwip_os
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* @see tcpip_callback_with_block
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*/
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#define tcpip_callback(f, ctx) tcpip_callback_with_block(f, ctx, 1)
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struct tcpip_callback_msg* tcpip_callbackmsg_new(tcpip_callback_fn function, void *ctx);
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void tcpip_callbackmsg_delete(struct tcpip_callback_msg* msg);
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err_t tcpip_trycallback(struct tcpip_callback_msg* msg);
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/* free pbufs or heap memory from another context without blocking */
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err_t pbuf_free_callback(struct pbuf *p);
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err_t mem_free_callback(void *m);
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#if LWIP_TCPIP_TIMEOUT && LWIP_TIMERS
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err_t tcpip_timeout(u32_t msecs, sys_timeout_handler h, void *arg);
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err_t tcpip_untimeout(sys_timeout_handler h, void *arg);
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#endif /* LWIP_TCPIP_TIMEOUT && LWIP_TIMERS */
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#ifdef __cplusplus
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}
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#endif
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#endif /* !NO_SYS */
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#endif /* LWIP_HDR_TCPIP_H */
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