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source/TickerResourceObserver.cpp
- Committer:
- ansond
- Date:
- 2016-02-19
- Revision:
- 0:1f1f55e73248
- Child:
- 13:9edad7677211
File content as of revision 0:1f1f55e73248:
/** * @file TickerResourceObserver.cpp * @brief mbed CoAP DynamicResource Ticker-based observer (implementation) * @author Doug Anson/Chris Paola * @version 1.0 * @see * * Copyright (c) 2014 * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include "TickerResourceObserver.h" // DEBUG //DigitalOut __ticker_led(LED2); // constructor TickerResourceObserver::TickerResourceObserver(DynamicResource *resource,int sleep_time) : ResourceObserver(resource,(int)(sleep_time/1000)) { this->setObserving(false); // DEBUG std::printf("TickerResourceObserver being used for %s (sleep_time=%d)\r\n",resource->getFullName().c_str(),sleep_time); } // destructor TickerResourceObserver::~TickerResourceObserver() { this->stopObservation(); } // notifier void TickerResourceObserver::observationNotifier() { if (this->isObserving() == true && this->getResource() != NULL) { // // implementsObservation(): This switch denotes whether this ticker resource generates its own observations or relies on the ticker (time-based) mechanism. // -- if resource itself doesn't implement it, then we can call notify() with the get() on each heartbeat of the tickered resource (see note below) // -- otherwise, we let the resource itself call observe() as part of its observation implementation // // note: this is independent of whether the resource, when declared, is defined as an observable resource or not. If not, then notify() wont be called // as there will be no observations for this resource regardless of this switch value. // bool do_notify = !(this->getResource()->implementsObservation()); this->getResource()->observe(); //__ticker_led = !__ticker_led; } } // begin observing... void TickerResourceObserver::beginObservation() { if (this->isObserving() == false) { this->m_ticker.attach(this,&TickerResourceObserver::observationNotifier,(float)this->getSleepTime()); this->setObserving(true); } } // begin observing... void TickerResourceObserver::stopObservation() { this->setObserving(false); }