Doug Anson / mbedConnectorInterfaceV3

mbedConnectorInterface back port from mbedOS v3 using mbed-client C++ call interface

source/ThreadedResourceObserver.cpp@26:d7b009313e3b, 2016-06-12 (annotated)

Committer:
ansond
Date:
Sun Jun 12 03:18:25 2016 +0000
Revision:
26:d7b009313e3b
Parent:
16:dffa38c3340f 
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 0:1f1f55e73248 23 #include "ThreadedResourceObserver.h"
ansond 0:1f1f55e73248 24
ansond 0:1f1f55e73248 25 // constructor
ansond 0:1f1f55e73248 26 ThreadedResourceObserver::ThreadedResourceObserver(DynamicResource *resource,int sleep_time) :
ansond 0:1f1f55e73248 27 ResourceObserver(resource,sleep_time)
ansond 0:1f1f55e73248 28 #ifdef CONNECTOR_USING_THREADS
ansond 0:1f1f55e73248 29 ,m_observation_thread(&ThreadedResourceObserver::_observation_notifier,this)
ansond 0:1f1f55e73248 30 #endif
ansond 0:1f1f55e73248 31 {
ansond 0:1f1f55e73248 32 this->setObserving(false);
ansond 0:1f1f55e73248 33 // DEBUG
ansond 0:1f1f55e73248 34 std::printf("ThreadedResourceObserver being used for %s (sleep_time=%d)\r\n",resource->getFullName().c_str(),sleep_time);
ansond 0:1f1f55e73248 35 }
ansond 0:1f1f55e73248 36
ansond 0:1f1f55e73248 37 // destructor
ansond 0:1f1f55e73248 38 ThreadedResourceObserver::~ThreadedResourceObserver() {
ansond 0:1f1f55e73248 39 this->stopObservation();
ansond 0:1f1f55e73248 40 #ifdef CONNECTOR_USING_THREADS
ansond 0:1f1f55e73248 41 this->m_observation_thread.terminate();
ansond 0:1f1f55e73248 42 #endif
ansond 0:1f1f55e73248 43 }
ansond 0:1f1f55e73248 44
ansond 0:1f1f55e73248 45 // notifier
ansond 0:1f1f55e73248 46 void ThreadedResourceObserver::_observation_notifier(void const *instance) {
ansond 0:1f1f55e73248 47 #ifdef CONNECTOR_USING_THREADS
ansond 0:1f1f55e73248 48 ThreadedResourceObserver *me = (ThreadedResourceObserver *)instance;
ansond 0:1f1f55e73248 49 while(true) {
ansond 0:1f1f55e73248 50 Thread::wait(me->getSleepTime());
ansond 16:dffa38c3340f 51 if (me->isObserving() == true && me->getResource() != NULL && me->getResource()->isRegistered() == true) {
ansond 0:1f1f55e73248 52 me->getResource()->observe();
ansond 0:1f1f55e73248 53 }
ansond 0:1f1f55e73248 54 }
ansond 0:1f1f55e73248 55 #endif
ansond 0:1f1f55e73248 56 }
ansond 0:1f1f55e73248 57
ansond 0:1f1f55e73248 58 // begin observing...
ansond 0:1f1f55e73248 59 void ThreadedResourceObserver::beginObservation() {
ansond 0:1f1f55e73248 60 this->setObserving(true);
ansond 0:1f1f55e73248 61 }
ansond 0:1f1f55e73248 62
ansond 0:1f1f55e73248 63 // stop observing...
ansond 0:1f1f55e73248 64 void ThreadedResourceObserver::stopObservation() {
ansond 0:1f1f55e73248 65 this->setObserving(false);
ansond 0:1f1f55e73248 66 }