Doug Anson / mbedConnectorInterfaceWithDM

mbed Connector Interface simplification API on top of mbed-client

Fork of mbedConnectorInterfaceV3 by Doug Anson

NOTE:

This repo has been replaced with https://github.com/ARMmbed/mbedConnectorInterface. No further updates will occur with this repo. Please use the github repo instead. Thanks!

source/EventQueueResourceObserver.cpp@125:4bf229bf14a3, 2017-07-13 (annotated)

Committer:
ansond
Date:
Thu Jul 13 19:21:28 2017 +0000
Revision:
125:4bf229bf14a3
Child:
126:f37e34daa100
rebased R1.2B to include EventQueue additions

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ansond 125:4bf229bf14a3 1 /**
ansond 125:4bf229bf14a3 2 * @file EventQueueResourceObserver.cpp
ansond 125:4bf229bf14a3 3 * @brief mbed CoAP DynamicResource Thread-based observer (implementation)
ansond 125:4bf229bf14a3 4 * @author Doug Anson/Chris Paola
ansond 125:4bf229bf14a3 5 * @version 1.0
ansond 125:4bf229bf14a3 6 * @see
ansond 125:4bf229bf14a3 7 *
ansond 125:4bf229bf14a3 8 * Copyright (c) 2017
ansond 125:4bf229bf14a3 9 *
ansond 125:4bf229bf14a3 10 * Licensed under the Apache License, Version 2.0 (the "License");
ansond 125:4bf229bf14a3 11 * you may not use this file except in compliance with the License.
ansond 125:4bf229bf14a3 12 * You may obtain a copy of the License at
ansond 125:4bf229bf14a3 13 *
ansond 125:4bf229bf14a3 14 * http://www.apache.org/licenses/LICENSE-2.0
ansond 125:4bf229bf14a3 15 *
ansond 125:4bf229bf14a3 16 * Unless required by applicable law or agreed to in writing, software
ansond 125:4bf229bf14a3 17 * distributed under the License is distributed on an "AS IS" BASIS,
ansond 125:4bf229bf14a3 18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
ansond 125:4bf229bf14a3 19 * See the License for the specific language governing permissions and
ansond 125:4bf229bf14a3 20 * limitations under the License.
ansond 125:4bf229bf14a3 21 */
ansond 125:4bf229bf14a3 22
ansond 125:4bf229bf14a3 23 // Class support
ansond 125:4bf229bf14a3 24 #include "mbed-connector-interface/EventQueueResourceObserver.h"
ansond 125:4bf229bf14a3 25
ansond 125:4bf229bf14a3 26 #ifdef CONNECTOR_USING_EVENT_QUEUES
ansond 125:4bf229bf14a3 27
ansond 125:4bf229bf14a3 28 // constructor
ansond 125:4bf229bf14a3 29 EventQueueResourceObserver::EventQueueResourceObserver(DynamicResource *resource,int sleep_time) : ResourceObserver(resource,sleep_time), m_event_queue() {
ansond 125:4bf229bf14a3 30 // default is not observing...
ansond 125:4bf229bf14a3 31 this->setObserving(false);
ansond 125:4bf229bf14a3 32
ansond 125:4bf229bf14a3 33 // DEBUG
ansond 125:4bf229bf14a3 34 this->logger()->log("EventQueueResourceObserver being used for %s (sleep_time: %d ms)",resource->getFullName().c_str(),sleep_time);
ansond 125:4bf229bf14a3 35
ansond 125:4bf229bf14a3 36 // start the thread by invoking the thread task...
ansond 125:4bf229bf14a3 37 this->m_id = this->m_event_queue.call_every(sleep_time,callback(this,&EventQueueResourceObserver::observation_task));
ansond 125:4bf229bf14a3 38 }
ansond 125:4bf229bf14a3 39
ansond 125:4bf229bf14a3 40 // destructor
ansond 125:4bf229bf14a3 41 EventQueueResourceObserver::~EventQueueResourceObserver() {
ansond 125:4bf229bf14a3 42 this->stopObservation();
ansond 125:4bf229bf14a3 43 this->m_event_queue.cancel(this->m_id);
ansond 125:4bf229bf14a3 44 }
ansond 125:4bf229bf14a3 45
ansond 125:4bf229bf14a3 46 // observation task method
ansond 125:4bf229bf14a3 47 void EventQueueResourceObserver::observation_task() {
ansond 125:4bf229bf14a3 48 if (this->isObserving() == true && this->getResource() != NULL) {
ansond 125:4bf229bf14a3 49 DynamicResource *res = this->getResource();
ansond 125:4bf229bf14a3 50 if (res != NULL && res->isRegistered() == true) {
ansond 125:4bf229bf14a3 51 res->observe();
ansond 125:4bf229bf14a3 52 }
ansond 125:4bf229bf14a3 53 }
ansond 125:4bf229bf14a3 54 }
ansond 125:4bf229bf14a3 55
ansond 125:4bf229bf14a3 56 // begin observing...
ansond 125:4bf229bf14a3 57 void EventQueueResourceObserver::beginObservation() {
ansond 125:4bf229bf14a3 58 this->setObserving(true);
ansond 125:4bf229bf14a3 59 }
ansond 125:4bf229bf14a3 60
ansond 125:4bf229bf14a3 61 // stop observing...
ansond 125:4bf229bf14a3 62 void EventQueueResourceObserver::stopObservation() {
ansond 125:4bf229bf14a3 63 this->setObserving(false);
ansond 125:4bf229bf14a3 64 }
ansond 125:4bf229bf14a3 65
ansond 125:4bf229bf14a3 66 // halt the underlying observer mechanism
ansond 125:4bf229bf14a3 67 void EventQueueResourceObserver::halt() {
ansond 125:4bf229bf14a3 68 this->m_event_queue.cancel(this->m_id);
ansond 125:4bf229bf14a3 69 }
ansond 125:4bf229bf14a3 70
ansond 125:4bf229bf14a3 71 #endif // CONNECTOR_USING_EVENT_QUEUES