File content as of revision 2:7d523bdd2f50:

#ifndef COMMUNICATION_MODULE_H
#define COMMUNICATION_MODULE_H

#include "mbed.h"
#include "cmsis_os.h"
#include "RTP.h"
#include "CommLink.h"
#include "ThreadHelper.h"

#define COMM_MODULE_TX_QUEUE_SIZE 20
#define COMM_MODULE_RX_QUEUE_SIZE 4
#define COMM_MODULE_NBR_PORTS 15

// Base class for a communication module
class CommModule
{
public:
    // Default Constructor
    CommModule();

    // Deconstructor
    virtual ~CommModule() {};
    
    // Class constants - set in CommModule.cpp
    static const int NBR_PORTS;
    static const int TX_QUEUE_SIZE;
    static const int RX_QUEUE_SIZE;

    // Let the CommModule class know of a hardware link that is can use for implementing communication
    void setLink(CommLink*);
    
    // Open a socket connection for communicating. 
    void openSocket(uint8_t, void(*task)(void const *arg));
    
    // Send a RTP packet. The details of exactly how the packet will be sent are determined from the RTP packet's port and subclass values
    void send(RTP_t&);

protected:
    // Memory management using memory structures from the CMSIS-RTOS API
    osMailQId   _txQueue;
    osMailQId   _rxQueue;

    // Used for storing the open socket's callback functions
    // volatile CUSTOM callbacks[NBR_PORTS];
    
private:
    // Used to help define the class's threads in the constructor
    friend void define_thread(osThreadDef_t&, void(*task)(void const *arg), osPriority, uint32_t, unsigned char*);

    // The working threads for handeling rx and tx data queues
    static void txThread(void const*);
    static void rxThread(void const*);

    // NOP function for keeping a oommunication link active
    void nopFunc(void);

    // Pointer for maintaining the active communication link
    CommLink*       _link;

    // Thread definitions and IDs
    osThreadDef_t   _txDef;
    osThreadDef_t   _rxDef;
    osThreadId      _txID;
    osThreadId      _rxID;

    // Ignore for now
    // bool _dynamic_stack;
    
};

#endif  // COMMUNICATION_MODULE_H