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109 lines
2.9 KiB
C
109 lines
2.9 KiB
C
/*
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* Copyright (C) 2017-2018 Freie Universität Berlin
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup examples
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* @{
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*
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* @file
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* @brief CoRE Resource Directory client (rdcli) example application
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*
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* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
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*
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* @}
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*/
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#include <stdio.h>
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#include "fmt.h"
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#include "shell.h"
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#include "net/ipv6/addr.h"
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#include "net/gcoap.h"
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#include "net/rdcli_common.h"
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#include "net/rdcli_standalone.h"
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#define MAIN_QUEUE_SIZE (8)
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static msg_t _main_msg_queue[MAIN_QUEUE_SIZE];
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/* we will use a custom event handler for dumping rdcli_standalone events */
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static void _on_rdcli_event(rdcli_standalone_event_t event)
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{
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switch (event) {
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case RDCLI_REGISTERED:
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puts("rdcli event: now registered with a RD");
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break;
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case RDCLI_DEREGISTERED:
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puts("rdcli event: dropped client registration");
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break;
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case RDCLI_UPDATED:
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puts("rdcli event: successfully updated client registration");
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break;
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}
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}
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/* define some dummy CoAP resources */
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static ssize_t _handler_dummy(coap_pkt_t *pdu,
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uint8_t *buf, size_t len, void *ctx)
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{
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(void)ctx;
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/* get random data */
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int16_t val = 23;
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gcoap_resp_init(pdu, buf, len, COAP_CODE_CONTENT);
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size_t plen = fmt_s16_dec((char *)pdu->payload, val);
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return gcoap_finish(pdu, plen, COAP_FORMAT_TEXT);
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}
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static ssize_t _handler_info(coap_pkt_t *pdu,
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uint8_t *buf, size_t len, void *ctx)
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{
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(void)ctx;
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gcoap_resp_init(pdu, buf, len, COAP_CODE_CONTENT);
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size_t slen = sizeof("SOME NODE INFOMRATION");
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memcpy(pdu->payload, "SOME NODE INFOMRATION", slen);
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return gcoap_finish(pdu, slen, COAP_FORMAT_TEXT);
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}
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static const coap_resource_t _resources[] = {
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{ "/node/info", COAP_GET, _handler_info, NULL },
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{ "/sense/hum", COAP_GET, _handler_dummy, NULL },
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{ "/sense/temp", COAP_GET, _handler_dummy, NULL }
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};
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static gcoap_listener_t _listener = {
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.resources = (coap_resource_t *)&_resources[0],
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.resources_len = sizeof(_resources) / sizeof(_resources[0]),
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.next = NULL
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};
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int main(void)
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{
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/* we need a message queue for the thread running the shell in order to
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* receive potentially fast incoming networking packets */
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msg_init_queue(_main_msg_queue, MAIN_QUEUE_SIZE);
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puts("CoRE RD client example!\n");
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/* setup CoAP resources */
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gcoap_register_listener(&_listener);
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/* register event callback with rdcli_standalone */
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rdcli_standalone_reg_cb(_on_rdcli_event);
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puts("Client information:");
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printf(" ep: %s\n", rdcli_common_get_ep());
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printf(" lt: %is\n", (int)RDCLI_LT);
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char line_buf[SHELL_DEFAULT_BUFSIZE];
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shell_run(NULL, line_buf, SHELL_DEFAULT_BUFSIZE);
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return 0;
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}
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