107 lines
3.8 KiB
C
107 lines
3.8 KiB
C
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/*
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* Copyright (c) 2013, Institute for Pervasive Computing, ETH Zurich
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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
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* This file is part of the Contiki operating system.
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*/
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/**
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* \file
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* Example resource
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* \author
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* Matthias Kovatsch <kovatsch@inf.ethz.ch>
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* \author
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* Wojciech Bober <wojciech.bober@nordicsemi.no>
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*/
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#include <string.h>
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#include "contiki.h"
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#include "rest-engine.h"
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#include "dev/leds.h"
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#define DEBUG DEBUG_NONE
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#include "net/ip/uip-debug.h"
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static void
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res_post_put_handler(void *request, void *response, uint8_t *buffer,
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uint16_t preferred_size, int32_t *offset);
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static void
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res_get_handler(void *request, void *response, uint8_t *buffer,
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uint16_t preferred_size, int32_t *offset);
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static void
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res_event_handler();
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/*A simple actuator example, depending on the color query parameter and post variable mode, corresponding led is activated or deactivated*/
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EVENT_RESOURCE(res_led3,
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"title=\"LED3\"; obs",
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res_get_handler,
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res_post_put_handler,
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res_post_put_handler,
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NULL,
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res_event_handler
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);
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static void
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res_post_put_handler(void *request, void *response, uint8_t *buffer,
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uint16_t preferred_size, int32_t *offset)
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{
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const uint8_t *payload;
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REST.get_request_payload(request, &payload);
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if (*payload == '0' || *payload == '1') {
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if (*payload == '1') {
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leds_on(LEDS_3);
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} else {
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leds_off(LEDS_3);
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}
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REST.notify_subscribers(&res_led3);
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REST.set_response_status(response, REST.status.CHANGED);
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} else {
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REST.set_response_status(response, REST.status.BAD_REQUEST);
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}
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}
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static void
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res_get_handler(void *request, void *response, uint8_t *buffer, uint16_t preferred_size, int32_t *offset)
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{
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REST.set_header_content_type(response, REST.type.TEXT_PLAIN);
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REST.set_response_payload(response, buffer, snprintf((char *)buffer, preferred_size, "%d", (leds_get() & LEDS_3) ? 1 : 0));
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}
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/*
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* Additionally, res_event_handler must be implemented for each EVENT_RESOURCE.
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* It is called through <res_name>.trigger(), usually from the server process.
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*/
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static void
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res_event_handler()
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{
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/* Notify the registered observers which will trigger the res_get_handler to create the response. */
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REST.notify_subscribers(&res_led3);
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}
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