2018-03-13 08:34:11 +00:00
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/*
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* Copyright (c) 2017, RISE SICS AB.
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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 copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* 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,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* \addtogroup lwm2m
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* @{
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*/
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/**
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* \file
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* Implementation of the Contiki OMA LWM2M Queue Object for managing the queue mode
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* \author
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* Carlos Gonzalo Peces <carlosgp143@gmail.com>
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*/
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#include "lwm2m-qmode-object.h"
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#if LWM2M_Q_MODE_ENABLED
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#include "lwm2m-object.h"
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#include "lwm2m-engine.h"
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#include "lwm2m-rd-client.h"
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#include "lib/memb.h"
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#include "lib/list.h"
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#include <string.h>
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/* Log configuration */
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#include "coap-log.h"
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#define LOG_MODULE "lwm2m-qmode-object"
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#define LOG_LEVEL LOG_LEVEL_LWM2M
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#define LWM2M_Q_OBJECT_ID 6000
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#define LWM2M_AWAKE_TIME_ID 3000
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#define LWM2M_SLEEP_TIME_ID 3001
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#if LWM2M_Q_MODE_INCLUDE_DYNAMIC_ADAPTATION
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#define LWM2M_DYNAMIC_ADAPTATION_FLAG_ID 3002
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#define UPDATE_WITH_MEAN 0 /* 1-mean time 0-maximum time */
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#endif
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static const lwm2m_resource_id_t resources[] =
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{ RW(LWM2M_AWAKE_TIME_ID),
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RW(LWM2M_SLEEP_TIME_ID),
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#if LWM2M_Q_MODE_INCLUDE_DYNAMIC_ADAPTATION
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RW(LWM2M_DYNAMIC_ADAPTATION_FLAG_ID),
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#endif
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};
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static uint16_t q_mode_awake_time = LWM2M_Q_MODE_DEFAULT_CLIENT_AWAKE_TIME;
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static uint32_t q_mode_sleep_time = LWM2M_Q_MODE_DEFAULT_CLIENT_SLEEP_TIME;
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#if LWM2M_Q_MODE_INCLUDE_DYNAMIC_ADAPTATION
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static uint8_t q_mode_dynamic_adaptation_flag = LWM2M_Q_MODE_DEFAULT_DYNAMIC_ADAPTATION_FLAG;
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/* Window to save the times and do the dynamic adaptation of the awake time*/
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2018-04-27 14:31:22 +00:00
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uint16_t times_window[LWM2M_Q_MODE_DYNAMIC_ADAPTATION_WINDOW_LENGTH] = { 0 };
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uint8_t times_window_index = 0;
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2018-03-13 08:34:11 +00:00
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#endif
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/*---------------------------------------------------------------------------*/
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uint16_t
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lwm2m_q_object_get_awake_time()
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{
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LOG_DBG("Client Awake Time: %d ms\n", (int)q_mode_awake_time);
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return q_mode_awake_time;
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}
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/*---------------------------------------------------------------------------*/
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static void
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lwm2m_q_object_set_awake_time(uint16_t time)
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{
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q_mode_awake_time = time;
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}
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/*---------------------------------------------------------------------------*/
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uint32_t
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lwm2m_q_object_get_sleep_time()
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{
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LOG_DBG("Client Sleep Time: %d ms\n", (int)q_mode_sleep_time);
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return q_mode_sleep_time;
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}
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/*---------------------------------------------------------------------------*/
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static void
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lwm2m_q_object_set_sleep_time(uint32_t time)
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{
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q_mode_sleep_time = time;
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}
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/*---------------------------------------------------------------------------*/
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#if LWM2M_Q_MODE_INCLUDE_DYNAMIC_ADAPTATION
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uint8_t
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lwm2m_q_object_get_dynamic_adaptation_flag()
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{
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LOG_DBG("Dynamic Adaptation Flag: %d ms\n", (int)q_mode_dynamic_adaptation_flag);
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return q_mode_dynamic_adaptation_flag;
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}
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/*---------------------------------------------------------------------------*/
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static void
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lwm2m_q_object_set_dynamic_adaptation_flag(uint8_t flag)
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{
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q_mode_dynamic_adaptation_flag = flag;
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}
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/*---------------------------------------------------------------------------*/
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#if !UPDATE_WITH_MEAN
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2018-04-27 14:31:22 +00:00
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static uint16_t
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2018-03-13 08:34:11 +00:00
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get_maximum_time()
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{
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2018-04-27 14:31:22 +00:00
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uint16_t max_time = 0;
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uint8_t i;
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for(i = 0; i < LWM2M_Q_MODE_DYNAMIC_ADAPTATION_WINDOW_LENGTH; i++) {
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if(times_window[i] > max_time) {
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max_time = times_window[i];
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2018-03-13 08:34:11 +00:00
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}
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}
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return max_time;
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}
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#endif
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/*---------------------------------------------------------------------------*/
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#if UPDATE_WITH_MEAN
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2018-04-27 14:31:22 +00:00
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static uint16_t
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2018-03-13 08:34:11 +00:00
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get_mean_time()
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{
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2018-04-27 14:31:22 +00:00
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uint16_t mean_time = 0;
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uint8_t i;
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for(i = 0; i < LWM2M_Q_MODE_DYNAMIC_ADAPTATION_WINDOW_LENGTH; i++) {
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2018-03-13 08:34:11 +00:00
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if(mean_time == 0) {
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2018-04-27 14:31:22 +00:00
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mean_time = times_window[i];
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2018-03-13 08:34:11 +00:00
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} else {
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2018-04-27 14:31:22 +00:00
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if(times_window[i] != 0) {
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mean_time = (mean_time + times_window[i]) / 2;
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}
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2018-03-13 08:34:11 +00:00
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}
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}
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return mean_time;
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}
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#endif
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/*---------------------------------------------------------------------------*/
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static void
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update_awake_time()
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{
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#if UPDATE_WITH_MEAN
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2018-04-27 14:31:22 +00:00
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uint16_t mean_time = get_mean_time();
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2018-03-13 08:34:11 +00:00
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LOG_DBG("Dynamic Adaptation: updated awake time: %d ms\n", (int)mean_time);
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lwm2m_q_object_set_awake_time(mean_time + (mean_time >> 1)); /* 50% margin */
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return;
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#else
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2018-04-27 14:31:22 +00:00
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uint16_t max_time = get_maximum_time();
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2018-03-13 08:34:11 +00:00
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LOG_DBG("Dynamic Adaptation: updated awake time: %d ms\n", (int)max_time);
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lwm2m_q_object_set_awake_time(max_time + (max_time >> 1)); /* 50% margin */
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return;
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#endif
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}
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/*---------------------------------------------------------------------------*/
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void
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2018-04-27 14:31:22 +00:00
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lwm2m_q_object_add_time_to_window(uint16_t time)
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2018-03-13 08:34:11 +00:00
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{
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2018-04-27 14:31:22 +00:00
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if(times_window_index == LWM2M_Q_MODE_DYNAMIC_ADAPTATION_WINDOW_LENGTH) {
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times_window_index = 0;
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2018-03-13 08:34:11 +00:00
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}
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2018-04-27 14:31:22 +00:00
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times_window[times_window_index] = time;
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times_window_index++;
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2018-03-13 08:34:11 +00:00
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update_awake_time();
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}
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#endif /* LWM2M_Q_MODE_INCLUDE_DYNAMIC_ADAPTATION */
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/*---------------------------------------------------------------------------*/
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static lwm2m_status_t
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lwm2m_callback(lwm2m_object_instance_t *object, lwm2m_context_t *ctx)
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{
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if(ctx->operation == LWM2M_OP_READ) {
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switch(ctx->resource_id) {
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case LWM2M_AWAKE_TIME_ID:
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lwm2m_object_write_int(ctx, (int32_t)q_mode_awake_time);
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return LWM2M_STATUS_OK;
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case LWM2M_SLEEP_TIME_ID:
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lwm2m_object_write_int(ctx, (int32_t)q_mode_sleep_time);
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return LWM2M_STATUS_OK;
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#if LWM2M_Q_MODE_INCLUDE_DYNAMIC_ADAPTATION
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case LWM2M_DYNAMIC_ADAPTATION_FLAG_ID:
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lwm2m_object_write_int(ctx, (int32_t)q_mode_dynamic_adaptation_flag);
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return LWM2M_STATUS_OK;
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#endif
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}
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} else if(ctx->operation == LWM2M_OP_WRITE) {
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switch(ctx->resource_id) {
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int32_t value_read;
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size_t len;
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case LWM2M_AWAKE_TIME_ID:
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len = lwm2m_object_read_int(ctx, ctx->inbuf->buffer, ctx->inbuf->size,
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&value_read);
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LOG_DBG("Client Awake Time write request value: %d\n", (int)value_read);
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if(len == 0) {
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LOG_WARN("FAIL: could not write awake time\n");
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return LWM2M_STATUS_WRITE_ERROR;
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} else {
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lwm2m_q_object_set_awake_time(value_read);
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return LWM2M_STATUS_OK;
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}
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case LWM2M_SLEEP_TIME_ID:
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len = lwm2m_object_read_int(ctx, ctx->inbuf->buffer, ctx->inbuf->size,
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&value_read);
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LOG_DBG("Client Sleep Time write request value: %d\n", (int)value_read);
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if(len == 0) {
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LOG_WARN("FAIL: could not write sleep time\n");
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return LWM2M_STATUS_WRITE_ERROR;
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} else {
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lwm2m_q_object_set_sleep_time(value_read);
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return LWM2M_STATUS_OK;
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}
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#if LWM2M_Q_MODE_INCLUDE_DYNAMIC_ADAPTATION
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case LWM2M_DYNAMIC_ADAPTATION_FLAG_ID:
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len = lwm2m_object_read_int(ctx, ctx->inbuf->buffer, ctx->inbuf->size,
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&value_read);
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LOG_DBG("Dynamic Adaptation Flag request value: %d\n", (int)value_read);
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if(len == 0) {
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LOG_WARN("FAIL: could not write dynamic flag\n");
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return LWM2M_STATUS_WRITE_ERROR;
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} else {
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lwm2m_q_object_set_dynamic_adaptation_flag(value_read);
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return LWM2M_STATUS_OK;
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}
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#endif
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}
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}
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return LWM2M_STATUS_OPERATION_NOT_ALLOWED;
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}
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/*---------------------------------------------------------------------------*/
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static lwm2m_object_instance_t queue_object = {
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.object_id = LWM2M_Q_OBJECT_ID,
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.instance_id = 0,
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.resource_ids = resources,
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.resource_count = sizeof(resources) / sizeof(lwm2m_resource_id_t),
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.resource_dim_callback = NULL,
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.callback = lwm2m_callback,
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};
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/*---------------------------------------------------------------------------*/
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void
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lwm2m_q_object_init(void)
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{
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lwm2m_engine_add_object(&queue_object);
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}
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/*---------------------------------------------------------------------------*/
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void
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lwm2m_q_object_send_notifications()
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{
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lwm2m_notify_object_observers(&queue_object, LWM2M_AWAKE_TIME_ID);
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lwm2m_notify_object_observers(&queue_object, LWM2M_SLEEP_TIME_ID);
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#if LWM2M_Q_MODE_INCLUDE_DYNAMIC_ADAPTATION
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lwm2m_notify_object_observers(&queue_object, LWM2M_DYNAMIC_ADAPTATION_FLAG_ID);
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#endif
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}
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/*---------------------------------------------------------------------------*/
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#endif /* LWM2M_Q_MODE_ENABLED */
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/** @} */
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