ACE/examples/APG/Config/Get_Opt.cpp

   1 /**
   2  * ACE_Get_Opt examples not in a larger program. Sample code from The ACE
   3  * Programmer's Guide, Copyright 2003 Addison-Wesley. All Rights Reserved.
   4  */
   5
   6 #include "ace/OS_NS_string.h"
   7 #include "ace/Get_Opt.h"
   8 #include "ace/Log_Msg.h"
   9
  10 int
  11 ACE_TMAIN (int argc, ACE_TCHAR *argv[])
  12 {
  13   // Example for a long option without a corresponding short option.
  14   // Just put some context here so the following compiles and runs.
  15   static const ACE_TCHAR options[] = ACE_TEXT (":f:");
  16   ACE_Get_Opt cmd_opts (argc, argv, options);
  17
  18   // Listing 1 code/ch04
  19   cmd_opts.long_option (ACE_TEXT ("cool_option"));
  20   cmd_opts.long_option (ACE_TEXT ("the_answer"), 42);
  21   // Listing 1
  22
  23   int option;
  24   ACE_TCHAR config_file[MAXPATHLEN];
  25   ACE_OS::strcpy (config_file, ACE_TEXT ("HAStatus.conf"));
  26   while ((option = cmd_opts ()) != EOF)
  27     switch (option) {
  28     case 'f':
  29       ACE_OS::strncpy (config_file,
  30                               cmd_opts.opt_arg (),
  31                               MAXPATHLEN);
  32       break;
  33
  34       // Listing 2 code/ch04
  35     case 0:
  36       ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Yes, very cool.\n")));
  37       break;
  38
  39     case 42:
  40       ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("the_answer is 42\n")));
  41       break;
  42       // Listing 2
  43
  44     case ':':
  45       ACE_ERROR_RETURN
  46         ((LM_ERROR, ACE_TEXT ("-%c requires an argument\n"),
  47           cmd_opts.opt_opt ()), -1);
  48
  49
  50     default:
  51       ACE_ERROR_RETURN
  52         ((LM_ERROR, ACE_TEXT ("Parse error.\n")), -1);
  53     }
  54
  55   return 0;
  56 }