ThreadedResourceObserver.h

00001 /**
00002  * @file    ThreadedResourceObserver.h
00003  * @brief   mbed CoAP DynamicResource Thread-based observer (header)
00004  * @author  Doug Anson/Chris Paola
00005  * @version 1.0
00006  * @see
00007  *
00008  * Copyright (c) 2014
00009  *
00010  * Licensed under the Apache License, Version 2.0 (the "License");
00011  * you may not use this file except in compliance with the License.
00012  * You may obtain a copy of the License at
00013  *
00014  *     http://www.apache.org/licenses/LICENSE-2.0
00015  *
00016  * Unless required by applicable law or agreed to in writing, software
00017  * distributed under the License is distributed on an "AS IS" BASIS,
00018  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00019  * See the License for the specific language governing permissions and
00020  * limitations under the License.
00021  */
00022 
00023 #ifndef __THREADED_RESOURCE_OBSERVER_H__
00024 #define __THREADED_RESOURCE_OBSERVER_H__
00025 
00026 // mbed support
00027 #include "mbed.h"
00028 
00029 // switch for proper resource observer selection (from mbedEndpointNetwork)
00030 #include "configuration.h"
00031 
00032 // mbedConnectorInterface configuration
00033 #include "mbedConnectorInterface.h"
00034 
00035 // Thread support
00036 #ifdef CONNECTOR_USING_THREADS
00037     #include "rtos.h"
00038 #endif
00039 
00040 // Base class support
00041 #include "ResourceObserver.h"
00042 
00043 class ThreadedResourceObserver : public ResourceObserver {
00044     public:
00045         /**
00046         Default Constructor
00047         @param resource input the resource to observe
00048         @param sleep_time input the time for the observation thread to sleep (in ms)
00049         */
00050         ThreadedResourceObserver(DynamicResource *resource,int sleep_time = OBS_PERIOD_MS);
00051                 
00052         /**
00053         Destructor
00054         */
00055         virtual ~ThreadedResourceObserver();
00056         
00057         /**
00058         begin the observation
00059         */
00060         virtual void beginObservation();
00061         
00062         /**
00063         stop the observation
00064         */
00065         virtual void stopObservation();
00066         
00067         /**
00068         thread invoke function (static)
00069         */
00070         static void _observation_notifier(void const *instance);
00071         
00072     private:
00073 #ifdef CONNECTOR_USING_THREADS 
00074         Thread  m_observation_thread;
00075 #endif
00076 };
00077 
00078 #endif // __THREADED_RESOURCE_OBSERVER_H__