ACE/apps/drwho/Protocol_Manager.h

   1 /* -*- C++ -*- */
   2
   3 //=============================================================================
   4 /**
   5  *  @file    Protocol_Manager.h
   6  *
   7  *  @author Douglas C. Schmidt
   8  */
   9 //=============================================================================
  10
  11
  12 #ifndef _PROTOCOL_MANAGER_H
  13 #define _PROTOCOL_MANAGER_H
  14
  15 #include "ace/config-all.h"
  16
  17 #if !defined (ACE_LACKS_PRAGMA_ONCE)
  18 # pragma once
  19 #endif /* ACE_LACKS_PRAGMA_ONCE */
  20
  21 #include "Options.h"
  22 #include "Search_Struct.h"
  23 #include "Protocol_Record.h"
  24
  25 /**
  26  * @class Protocol_Manager
  27  *
  28  * @brief A base class that consolidates friend management functionality
  29  * shared by both clients and servers.
  30  */
  31 class Protocol_Manager
  32 {
  33 public:
  34   Protocol_Manager ();
  35   virtual ~Protocol_Manager ();
  36
  37   virtual int encode (char *packet, int &total_bytes) = 0;
  38   virtual int decode (char *packet, int &total_bytes) = 0;
  39
  40 protected:
  41   int total_users;
  42   Search_Struct *ss;
  43
  44   int friend_count ();
  45
  46   Drwho_Node *get_drwho_node (char *host_name, Drwho_Node *&head);
  47   int get_total_users ();
  48   void increment_total_users (int remote_users = 1);
  49
  50   Protocol_Record *get_next_friend ();
  51   Protocol_Record *get_each_friend ();
  52
  53   virtual Protocol_Record *insert_protocol_info (Protocol_Record &protocol_record) = 0;
  54 };
  55
  56 #endif /* _PROTOCOL_MANAGER_H */