ACE/examples/C++NPv2/AC_Client_Logging_Daemon.h

   1 /*
   2 ** Copyright 2002 Addison Wesley. All Rights Reserved.
   3 */
   4
   5 #ifndef _AC_CLIENT_LOGGING_DAEMON_H
   6 #define _AC_CLIENT_LOGGING_DAEMON_H
   7
   8 #include "ace/Handle_Set.h"
   9 #include "ace/Log_Record.h"
  10 #include "ace/SOCK_Stream.h"
  11 #include "ace/Svc_Handler.h"
  12 #include "ace/Synch_Traits.h"
  13
  14 class AC_CLD_Connector;
  15
  16 class AC_Output_Handler
  17   : public ACE_Svc_Handler<ACE_SOCK_STREAM, ACE_MT_SYNCH> {
  18 public:
  19   enum { QUEUE_MAX = sizeof (ACE_Log_Record) * ACE_IOV_MAX };
  20
  21   virtual int open (void *); // Initialization hook method.
  22
  23   // Entry point into the <AC_Output_Handler>.
  24   virtual int put (ACE_Message_Block *, ACE_Time_Value * = 0);
  25
  26 protected:
  27   AC_CLD_Connector *connector_;
  28
  29   // Handle disconnects from the logging server.
  30   virtual int handle_input (ACE_HANDLE handle);
  31
  32   // Hook method forwards log records to server logging daemon.
  33   virtual int svc ();
  34
  35   // Send the buffered log records using a gather-write operation.
  36   virtual int send (ACE_Message_Block *chunk[], size_t &count);
  37 };
  38
  39 class AC_Input_Handler
  40   : public ACE_Svc_Handler<ACE_SOCK_STREAM, ACE_NULL_SYNCH> {
  41 public:
  42   AC_Input_Handler (AC_Output_Handler *handler = 0)
  43     : output_handler_ (handler) {}
  44   virtual int open (void *); // Initialization hook method.
  45   virtual int close (u_long = 0); // Shutdown hook method.
  46
  47 protected:
  48   // Reactor hook methods.
  49   virtual int handle_input (ACE_HANDLE handle);
  50   virtual int handle_close (ACE_HANDLE = ACE_INVALID_HANDLE,
  51                             ACE_Reactor_Mask = 0);
  52
  53   // Pointer to the output handler.
  54   AC_Output_Handler *output_handler_;
  55
  56   // Keep track of connected client handles.
  57   ACE_Handle_Set connected_clients_;
  58 };
  59
  60 #endif /* _AC_CLIENT_LOGGING_DAEMON_H */