// -*-c++-*-
// The server object header file.
#ifndef __SERVER_H
#define __SERVER_H

#include "HPCxx_String.h"
#include <hpcxx_rts.h>

#define SERVER_REG_ID 340  // Some random unused number

// All registration IDs, again randomly selected. These numbers must be
// unique among all the functions registered in this context. 
#define RETURN_SERVER_GP_ID  180
#define SAY_HELLO_ID         181
#define KILL_ME_ID           182

class Server {
public:
  Server() {}

  // The server object's API
  HPCxx_String sayHello(HPCxx_String);
  int killMe();

  // This is required to figure out the server class' registration ID. This
  // is used by HPC++ for remote read / write on instances of the Server
  // class (not shown by this example).
  static int registrationID() { return SERVER_REG_ID; }

  static void registerAll(); // To register all of the server related functions

  // Pack and unpack functions for the server object. Again, if we were
  // doing remote read / write for instances of the server object, these
  // functions will determine what constitutes the object's data.
  friend void hpcxx_pack(HPCxx_Buffer& b, Server* p, int count);
  friend void hpcxx_unpack(HPCxx_Buffer& b, Server* p, int count);
};

// To be called to get the first GP to the server context. In HPC++
// semantics, every context typically provides at least one global
// functions that returns a global pointer to a server object. This
// function is called first to get this global pointer, whihc can then be
// used to invoke methods on the server object.
HPCxx_GlobalPtr<Server> returnServerGp();

#endif // __SERVER_H