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/ThreadedResourceObserver.cpp@67:0c130dc6b489, 2016-08-22 (annotated)

Committer:
ansond
Date:
Mon Aug 22 19:36:45 2016 +0000
Revision:
67:0c130dc6b489
Parent:
66:764ec3dd205a
Child:
68:d016acf33ab4
updates

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ansond 0:1f1f55e73248 1 /**
ansond 0:1f1f55e73248 2 * @file ThreadedResourceObserver.cpp
ansond 0:1f1f55e73248 3 * @brief mbed CoAP DynamicResource Thread-based observer (implementation)
ansond 0:1f1f55e73248 4 * @author Doug Anson/Chris Paola
ansond 0:1f1f55e73248 5 * @version 1.0
ansond 0:1f1f55e73248 6 * @see
ansond 0:1f1f55e73248 7 *
ansond 0:1f1f55e73248 8 * Copyright (c) 2014
ansond 0:1f1f55e73248 9 *
ansond 0:1f1f55e73248 10 * Licensed under the Apache License, Version 2.0 (the "License");
ansond 0:1f1f55e73248 11 * you may not use this file except in compliance with the License.
ansond 0:1f1f55e73248 12 * You may obtain a copy of the License at
ansond 0:1f1f55e73248 13 *
ansond 0:1f1f55e73248 14 * http://www.apache.org/licenses/LICENSE-2.0
ansond 0:1f1f55e73248 15 *
ansond 0:1f1f55e73248 16 * Unless required by applicable law or agreed to in writing, software
ansond 0:1f1f55e73248 17 * distributed under the License is distributed on an "AS IS" BASIS,
ansond 0:1f1f55e73248 18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
ansond 0:1f1f55e73248 19 * See the License for the specific language governing permissions and
ansond 0:1f1f55e73248 20 * limitations under the License.
ansond 0:1f1f55e73248 21 */
ansond 0:1f1f55e73248 22
ansond 31:2507e64fcc42 23 // Class support
ansond 31:2507e64fcc42 24 #include "mbed-connector-interface/ThreadedResourceObserver.h"
ansond 0:1f1f55e73248 25
ansond 34:a10d65907549 26 #ifdef CONNECTOR_USING_THREADS
ansond 34:a10d65907549 27
ansond 0:1f1f55e73248 28 // constructor
ansond 66:764ec3dd205a 29 ThreadedResourceObserver::ThreadedResourceObserver(DynamicResource *resource,int sleep_time) : ResourceObserver(resource,sleep_time), m_observation_thread() {
ansond 66:764ec3dd205a 30 // default is not observing...
ansond 66:764ec3dd205a 31 this->setObserving(false);
ansond 66:764ec3dd205a 32
ansond 66:764ec3dd205a 33 // DEBUG
ansond 66:764ec3dd205a 34 if (sleep_time > 0) {
ansond 66:764ec3dd205a 35 this->logger()->log("ThreadedResourceObserver being used for %s (sleep_time: %d ms)",resource->getFullName().c_str(),sleep_time);
ansond 66:764ec3dd205a 36 }
ansond 66:764ec3dd205a 37 else {
ansond 66:764ec3dd205a 38 this->logger()->log("ThreadedResourceObserver being used for %s",resource->getFullName().c_str());
ansond 66:764ec3dd205a 39 }
ansond 66:764ec3dd205a 40
ansond 66:764ec3dd205a 41 // start the thread by invoking the thread task...
ansond 66:764ec3dd205a 42 this->m_observation_thread.start(this,&ThreadedResourceObserver::observation_task);
ansond 0:1f1f55e73248 43 }
ansond 0:1f1f55e73248 44
ansond 0:1f1f55e73248 45 // destructor
ansond 0:1f1f55e73248 46 ThreadedResourceObserver::~ThreadedResourceObserver() {
ansond 0:1f1f55e73248 47 this->stopObservation();
ansond 0:1f1f55e73248 48 this->m_observation_thread.terminate();
ansond 0:1f1f55e73248 49 }
ansond 0:1f1f55e73248 50
ansond 66:764ec3dd205a 51 // thread task method
ansond 67:0c130dc6b489 52 void ThreadedResourceObserver::observation_task(ThreadedResourceObserver *me) {
ansond 67:0c130dc6b489 53 if (me != NULL) {
ansond 67:0c130dc6b489 54 while(true) {
ansond 67:0c130dc6b489 55 Thread::wait(me->getSleepTime());
ansond 67:0c130dc6b489 56 if (me->isObserving() == true && me->getResource() != NULL && me->getResource()->isRegistered() == true) {
ansond 67:0c130dc6b489 57 Resource *res = me->getResource();
ansond 67:0c130dc6b489 58 if (res != NULL) {
ansond 67:0c130dc6b489 59 res->observe();
ansond 67:0c130dc6b489 60 }
ansond 67:0c130dc6b489 61 }
ansond 0:1f1f55e73248 62 }
ansond 0:1f1f55e73248 63 }
ansond 67:0c130dc6b489 64 else {
ansond 67:0c130dc6b489 65 // instance pointer is NULL
ansond 67:0c130dc6b489 66 printf("ThreadedResourceObserver::observation_task(): ERROR: Instance pointer is NULL\r\n");
ansond 67:0c130dc6b489 67 }
ansond 0:1f1f55e73248 68 }
ansond 0:1f1f55e73248 69
ansond 0:1f1f55e73248 70 // begin observing...
ansond 0:1f1f55e73248 71 void ThreadedResourceObserver::beginObservation() {
ansond 0:1f1f55e73248 72 this->setObserving(true);
ansond 0:1f1f55e73248 73 }
ansond 0:1f1f55e73248 74
ansond 0:1f1f55e73248 75 // stop observing...
ansond 0:1f1f55e73248 76 void ThreadedResourceObserver::stopObservation() {
ansond 0:1f1f55e73248 77 this->setObserving(false);
ansond 34:a10d65907549 78 }
ansond 34:a10d65907549 79
ansond 54:dfee8691c83a 80 // halt the underlying observer mechanism
ansond 54:dfee8691c83a 81 void ThreadedResourceObserver::halt() {
ansond 54:dfee8691c83a 82 m_observation_thread.terminate();
ansond 54:dfee8691c83a 83 }
ansond 54:dfee8691c83a 84
ansond 34:a10d65907549 85 #endif // CONNECTOR_USING_THREADS