• Introduction
  
• Example
  
• Ports
  
• IDL Specification
  
• Stub Compiler
  
• Port Compatibility
  
• Parameter Ports
  
• CCAT Component Initialization
  
• Component Interface Implementation
  
• Provides Port Interface Implementation
  
• Uses Port Interface Implementation
  
• Flow of Control
  
• XML Specification
  
• Incorporating into CCAT
  
• Installing the components
  

// File: MyString.idl
// This is a specification in IDL
// for the port of type MyString

interface MyString : Port {
   int replyValue sendString(MyString myOwnString);
};

// End of file MyString.idl

// Do not modify. This file has been automatically
// generated from the IDL file MyString.idl
// File: MyString_idl.h

#ifndef _MY_STRING_IDL_H__
#define _MY_STRING_IDL_H__

#include  "MyString.h"  
#include "../InterfaceType.h"

class MyString_idl : public InterfaceType {
public:
  virtual int sendMyString(MyString *myString) = 0;
};

#endif // _MY_STRING_IDL_H__

1. ProvidesMyString.h
2. ProvidesMyStringSkel.h
3. ProvidesMyStringSkel.C
4. UsesMyString.h
5. UsesMyStringSkel.h
6. UsesMyStringSkel.C
7. PORTS_REGISTRATION_ID.h

// File: Concat.idl
// This is a specification in IDL
// for the port of type MyString

interface ConcatParms : Port {
   int replyValue sendConcatParms(ConcatParms concatParms);
   int start();
   int stop();
   int kill();
};

// End of file Concat.idl

1. ConcatParms_idl.h
2. ConcatParms.h
3. ProvidesConcatParmsSkel.h
4. ProvidesConcatParmsSkel.C
5. UsesConcatParms.h
6. UsesConcatParmsSkel.h
7. UsesConcatParmsSkel.C
8. PORTS_REGISTRATION_ID.h

1. ConcatComponentHome.h
2. ConcatComponentHome.C
3. ConcatServer.C

1. ConcatComponent.h
2. ConcatComponent.C

1. MyString_impl.h
2. MyString_impl.C
3. ConcatParms_impl.h
4. ConcatParms_impl.C

// Typically the NewSystem component upon generation of a
// new string will propagate it to the Concat component
// via its uses port for MyString_idl

// UsesMyString: type of the output port
// m_core: pointer to the services object
// "outputMyString": name given to the port in registerUsesPort() call

 UsesMyString *up = dynamic_cast(m_core->getPort("outputMyString"));
 up->sendMyString(pointerToNewString);
 m_core->releasePort("outputMyString");

1. XML for Concat
2. XML for NewString