MasterMsg.h

#ifndef GCP_GRABBER_MASTERMSG_H
#define GCP_GRABBER_MASTERMSG_H

#include "gcp/util/common/Exception.h"
#include "gcp/util/common/GenericMasterTaskMsg.h"

#include "gcp/grabber/common/ControlMsg.h"
#include "gcp/grabber/common/ScannerMsg.h"

namespace gcp {
  namespace grabber {
    
    class MasterMsg :
      public gcp::util::GenericMasterTaskMsg {
      
      public:
      enum MsgType {
    CONTROL_CONNECTED, // A message that we are dis/connected from
               // the control port
    SCANNER_CONNECTED, // A message that we are dis/connected from
               // the scanner port
    CONTROL_MSG,       // A message for the control task
    SCANNER_MSG        // A message for the scanner task
      };
      
      MsgType type;
      
      union {
    
    struct {
      bool connected;
    } controlConnected;
    
    struct {
      bool connected;
    } scannerConnected;
    
    ControlMsg controlMsg;
    
    ScannerMsg scannerMsg;
    
      } body;
      
      //------------------------------------------------------------
      // Methods for returning pointers to messages for threads
      // managed by this task.
      //------------------------------------------------------------
      
      inline ScannerMsg* getScannerMsg()
    {
      genericMsgType_ = 
        gcp::util::GenericTaskMsg::TASK_SPECIFIC;
      
      type = SCANNER_MSG;
      return &body.scannerMsg;
    }
      
      inline ControlMsg* getControlMsg()
    {
      genericMsgType_ = 
        gcp::util::GenericTaskMsg::TASK_SPECIFIC;
      
      type = CONTROL_MSG;
      return &body.controlMsg;
    }
      
      inline void packControlConnectedMsg(bool connected)
    {
      genericMsgType_ = 
        gcp::util::GenericTaskMsg::TASK_SPECIFIC;
      
      type = CONTROL_CONNECTED;
      
      body.controlConnected.connected = connected;
    }
      
      inline void packScannerConnectedMsg(bool connected)
    {
      genericMsgType_ = 
        gcp::util::GenericTaskMsg::TASK_SPECIFIC;
      
      type = SCANNER_CONNECTED;
      
      body.scannerConnected.connected = connected;
    }
      
    }; // End class MasterMsg
    
  }; // End namespace grabber
}; // End namespace gcp


#endif // End #ifndef GCP_GRABBER_MASTER_H