mbed Connector Endpoint interface. This interface permits a mbed endpoint to easily setup MDS resources and emit those resources to an MDS server.

Dependents:   IoT_LED_demo ServoTest uWater_Project hackathon ... more

api/InstancePointerTable.h

Committer:
ansond
Date:
2015-01-27
Revision:
0:b438482ebbfc
Child:
2:853f9ecc12df

File content as of revision 0:b438482ebbfc:

/**
 * @file    InstancePointerTable.h
 * @brief   instance pointer table header
 * @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.
 */
 
 #ifndef __INSTANCE_POINTER_TABLE_H__
 #define __INSTANCE_POINTER_TABLE_H__
 
 // Logger support
 #include "Logger.h"
 
 // string support
 #include <string>
 
 // Configuration
 #include "mbedConnectorInterface.h"
   
 // our table row structure
 typedef struct {
        string  key;
        void   *instance;
 } InstancePointerTableRow;
  
 class InstancePointerTable {
     public:
        /**
        Default constructor
        @param logger input the logger instance
        */
        InstancePointerTable(const Logger *logger = NULL);
        
        /**
        Destructor
        */
        virtual ~InstancePointerTable();
        
        /** 
        Add pointer to the instance table
        @param key input the key for the new pointer
        @param instance input the instance pointer to save
        */
        void add(string key,void *instance);
        
        /**
        Get a instance pointer index by the name of the key
        @param key input the key to use for the lookup
        @returns the instance pointer if found or NULL if not found
        */
        void *get(string key);
        
        /**
        Set the Logger instance
        @param logger input the logger instance
        */
        void setLogger(const Logger *logger);
        
    private:
        Logger                 *m_logger;
        InstancePointerTableRow m_instance_pointer_table[IPT_MAX_ENTRIES];
        
        // initialize our table
        void init();
        
        // get the next empty slot
        int nextEmptySlot();
        
        // index from key
        int indexFromKey(string key);
        
        // get our logger
        Logger *logger();
 };
 
 #endif // __INSTANCE_POINTER_TABLE_H__