mirror of
https://github.com/oliverschmidt/contiki.git
synced 2024-11-02 00:09:36 +00:00
79 lines
2.9 KiB
C
79 lines
2.9 KiB
C
/*
|
|
* Copyright (c) 2011, Institute for Pervasive Computing, ETH Zurich
|
|
* 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. Neither the name of the Institute nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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 Contiki operating system.
|
|
*/
|
|
|
|
/**
|
|
* \file
|
|
* CoAP module for reliable transport
|
|
* \author
|
|
* Matthias Kovatsch <kovatsch@inf.ethz.ch>
|
|
*/
|
|
|
|
#ifndef COAP_TRANSACTIONS_H_
|
|
#define COAP_TRANSACTIONS_H_
|
|
|
|
#include "er-coap-03.h"
|
|
|
|
/*
|
|
* The number of concurrent messages that can be stored for retransmission in the transaction layer.
|
|
*/
|
|
#ifndef COAP_MAX_OPEN_TRANSACTIONS
|
|
#define COAP_MAX_OPEN_TRANSACTIONS 4
|
|
#endif /* COAP_MAX_OPEN_TRANSACTIONS */
|
|
|
|
/* container for transactions with message buffer and retransmission info */
|
|
typedef struct coap_transaction {
|
|
struct coap_transaction *next; /* for LIST */
|
|
|
|
uint16_t tid;
|
|
struct etimer retrans_timer;
|
|
uint8_t retrans_counter;
|
|
|
|
uip_ipaddr_t addr;
|
|
uint16_t port;
|
|
|
|
restful_response_handler callback;
|
|
void *callback_data;
|
|
|
|
uint16_t packet_len;
|
|
uint8_t packet[COAP_MAX_PACKET_SIZE+1]; /* +1 for the terminating '\0' to simply and savely use snprintf(buf, len+1, "", ...) in the resource handler. */
|
|
} coap_transaction_t;
|
|
|
|
void coap_register_as_transaction_handler();
|
|
|
|
coap_transaction_t *coap_new_transaction(uint16_t tid, uip_ipaddr_t *addr, uint16_t port);
|
|
void coap_send_transaction(coap_transaction_t *t);
|
|
void coap_clear_transaction(coap_transaction_t *t);
|
|
coap_transaction_t *coap_get_transaction_by_tid(uint16_t tid);
|
|
|
|
void coap_check_transactions();
|
|
|
|
#endif /* COAP_TRANSACTIONS_H_ */
|