ACE/apps/JAWS2/JAWS/Data_Block.h

   1 /* -*- c++ -*- */
   2 #ifndef JAWS_DATA_BLOCK_H
   3 #define JAWS_DATA_BLOCK_H
   4
   5 #include "ace/Message_Block.h"
   6
   7 #if !defined (ACE_LACKS_PRAGMA_ONCE)
   8 # pragma once
   9 #endif /* ACE_LACKS_PRAGMA_ONCE */
  10
  11 #include "JAWS/Export.h"
  12 #include "JAWS/Pipeline.h"
  13
  14 class JAWS_IO_Handler;
  15 class JAWS_Dispatch_Policy;
  16 class JAWS_Data_Block;
  17 class JAWS_Pipeline_Handler;
  18
  19 class JAWS_Export JAWS_Data_Block : public ACE_Message_Block
  20 // = TITLE
  21 //   Defines the communication unit between pipeline components
  22 {
  23 public:
  24   JAWS_Data_Block ();
  25   JAWS_Data_Block (JAWS_Data_Block &db);
  26   ~JAWS_Data_Block ();
  27
  28   JAWS_Pipeline_Handler *task ();
  29   JAWS_IO_Handler *io_handler ();
  30   JAWS_Dispatch_Policy *policy ();
  31   void *payload ();
  32
  33   void task (JAWS_Pipeline_Handler *taskp);
  34   void io_handler (JAWS_IO_Handler *handlerp);
  35   void policy (JAWS_Dispatch_Policy *policyp);
  36   void payload (void *payloadp);
  37
  38   enum { JAWS_DATA_BLOCK_SIZE = 8192 };
  39
  40 private:
  41   JAWS_IO_Handler *io_handler_;
  42   JAWS_Dispatch_Policy *policy_;
  43   JAWS_Pipeline_Handler *task_;
  44
  45   void *payload_;
  46 };
  47
  48 #endif /* !defined (JAWS_DATA_BLOCK_H) */