最新的版本ACE-5.6.8,刚从外文网上搬下,与大家分享.

				/* -*- C++ -*- */
				// $Id: Command.h 80826 2008-03-04 14:51:23Z wotte $
				
				#ifndef COMMAND_H
				#define COMMAND_H
				
				#include "ace/SString.h"
				#include "ace/Message_Block.h"
				
				// Listing 01 code/ch18
				class Command : public ACE_Data_Block
				{
				public:
				  // Result Values
				  enum {
				    RESULT_PASS    = 1,
				    RESULT_SUCCESS = 0,
				    RESULT_FAILURE = -1
				  };
				
				  // Commands
				  enum {
				    CMD_UNKNOWN            = -1,
				    CMD_ANSWER_CALL        = 10,
				    CMD_RETRIEVE_CALLER_ID,
				    CMD_PLAY_MESSAGE,
				    CMD_RECORD_MESSAGE
				  } commands;
				
				  int flags_;
				  int command_;
				
				  void *extra_data_;
				
				  int numeric_result_;
				  ACE_TString result_;
				};
				// Listing 01
				
				#endif /* COMMAND_H */