[457] | 1 | /**
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| 2 | * @file
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| 3 | * Functions to sync with TCPIP thread
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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| 8 | * All rights reserved.
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| 9 | *
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| 10 | * Redistribution and use in source and binary forms, with or without modification,
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| 11 | * are permitted provided that the following conditions are met:
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| 12 | *
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| 13 | * 1. Redistributions of source code must retain the above copyright notice,
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| 14 | * this list of conditions and the following disclaimer.
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| 15 | * 2. Redistributions in binary form must reproduce the above copyright notice,
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| 16 | * this list of conditions and the following disclaimer in the documentation
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| 17 | * and/or other materials provided with the distribution.
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| 18 | * 3. The name of the author may not be used to endorse or promote products
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| 19 | * derived from this software without specific prior written permission.
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| 20 | *
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| 21 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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| 22 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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| 23 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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| 24 | * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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| 25 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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| 26 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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| 27 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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| 28 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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| 29 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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| 30 | * OF SUCH DAMAGE.
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| 31 | *
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| 32 | * This file is part of the lwIP TCP/IP stack.
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| 33 | *
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| 34 | * Author: Adam Dunkels <adam@sics.se>
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| 35 | *
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| 36 | */
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| 37 | #ifndef LWIP_HDR_TCPIP_H
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| 38 | #define LWIP_HDR_TCPIP_H
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| 39 |
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| 40 | #include "lwip/opt.h"
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| 41 |
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| 42 | #if !NO_SYS /* don't build if not configured for use in lwipopts.h */
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| 43 |
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| 44 | #include "lwip/err.h"
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| 45 | #include "lwip/timeouts.h"
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| 46 | #include "lwip/netif.h"
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| 47 |
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| 48 | #ifdef __cplusplus
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| 49 | extern "C" {
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| 50 | #endif
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| 51 |
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| 52 | #if LWIP_TCPIP_CORE_LOCKING
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| 53 | /** The global semaphore to lock the stack. */
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| 54 | extern sys_mutex_t lock_tcpip_core;
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| 55 | #if !defined LOCK_TCPIP_CORE || defined __DOXYGEN__
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| 56 | /** Lock lwIP core mutex (needs @ref LWIP_TCPIP_CORE_LOCKING 1) */
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| 57 | #define LOCK_TCPIP_CORE() sys_mutex_lock(&lock_tcpip_core)
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| 58 | /** Unlock lwIP core mutex (needs @ref LWIP_TCPIP_CORE_LOCKING 1) */
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| 59 | #define UNLOCK_TCPIP_CORE() sys_mutex_unlock(&lock_tcpip_core)
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| 60 | #endif /* LOCK_TCPIP_CORE */
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| 61 | #else /* LWIP_TCPIP_CORE_LOCKING */
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| 62 | #define LOCK_TCPIP_CORE()
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| 63 | #define UNLOCK_TCPIP_CORE()
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| 64 | #endif /* LWIP_TCPIP_CORE_LOCKING */
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| 65 |
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| 66 | struct pbuf;
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| 67 | struct netif;
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| 68 |
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| 69 | /** Function prototype for the init_done function passed to tcpip_init */
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| 70 | typedef void (*tcpip_init_done_fn)(void *arg);
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| 71 | /** Function prototype for functions passed to tcpip_callback() */
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| 72 | typedef void (*tcpip_callback_fn)(void *ctx);
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| 73 |
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| 74 | /* Forward declarations */
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| 75 | struct tcpip_callback_msg;
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| 76 |
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| 77 | void tcpip_init(tcpip_init_done_fn tcpip_init_done, void *arg);
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| 78 |
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| 79 | err_t tcpip_inpkt(struct pbuf *p, struct netif *inp, netif_input_fn input_fn);
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| 80 | err_t tcpip_input(struct pbuf *p, struct netif *inp);
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| 81 |
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| 82 | err_t tcpip_try_callback(tcpip_callback_fn function, void *ctx);
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| 83 | err_t tcpip_callback(tcpip_callback_fn function, void *ctx);
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| 84 | /** @ingroup lwip_os
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| 85 | * @deprecated use tcpip_try_callback() or tcpip_callback() instead
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| 86 | */
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| 87 | #define tcpip_callback_with_block(function, ctx, block) ((block != 0)? tcpip_callback(function, ctx) : tcpip_try_callback(function, ctx))
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| 88 |
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| 89 | struct tcpip_callback_msg* tcpip_callbackmsg_new(tcpip_callback_fn function, void *ctx);
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| 90 | void tcpip_callbackmsg_delete(struct tcpip_callback_msg* msg);
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| 91 | err_t tcpip_callbackmsg_trycallback(struct tcpip_callback_msg* msg);
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| 92 | err_t tcpip_callbackmsg_trycallback_fromisr(struct tcpip_callback_msg* msg);
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| 93 |
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| 94 | /* free pbufs or heap memory from another context without blocking */
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| 95 | err_t pbuf_free_callback(struct pbuf *p);
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| 96 | err_t mem_free_callback(void *m);
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| 97 |
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| 98 | #if LWIP_TCPIP_TIMEOUT && LWIP_TIMERS
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| 99 | err_t tcpip_timeout(u32_t msecs, sys_timeout_handler h, void *arg);
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| 100 | err_t tcpip_untimeout(sys_timeout_handler h, void *arg);
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| 101 | #endif /* LWIP_TCPIP_TIMEOUT && LWIP_TIMERS */
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| 102 |
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| 103 | #ifdef TCPIP_THREAD_TEST
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| 104 | int tcpip_thread_poll_one(void);
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| 105 | #endif
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| 106 |
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| 107 | #ifdef __cplusplus
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| 108 | }
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| 109 | #endif
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| 110 |
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| 111 | #endif /* !NO_SYS */
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| 112 |
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| 113 | #endif /* LWIP_HDR_TCPIP_H */
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