ACE/FAQ/APG/Svc Config

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Configurable Server Dynamic

// $Id: HA_Configurable_Server_Dynamic.cpp 80826 2008-03-04 14:51:23Z wotte $
 
// Listing 1 code/ch19
#include "ace/OS_main.h"
#include "ace/Service_Config.h"
#include "ace/Reactor.h"
 
int ACE_TMAIN (int argc, ACE_TCHAR *argv[])
{
  ACE_Service_Config::open (argc, argv);
 
  // We use this version of the event loop so that reconfigurations
  // are triggered properly.
  ACE_Reactor::instance ()->run_reactor_event_loop (ACE_Reactor::check_reconfiguration);
  return 0;
}
// Listing 1

Configurable Server Static

// $Id: HA_Configurable_Server_Static.cpp 80826 2008-03-04 14:51:23Z wotte $
 
// Listing 1 code/ch19
#include "ace/OS_main.h"
#include "ace/Service_Config.h"
#include "ace/Reactor.h"
 
int ACE_TMAIN (int argc, ACE_TCHAR *argv[])
{
  ACE_STATIC_SVC_REGISTER (HA_Status_Descriptor);
  ACE_Service_Config::open (argc,
                            argv,
                            ACE_DEFAULT_LOGGER_KEY,
                            0);
  ACE_Reactor::instance ()->run_reactor_event_loop ();
  return 0;
}
// Listing 1

HASTATUS_export.h

// -*- C++ -*-
// $Id: HASTATUS_export.h 80826 2008-03-04 14:51:23Z wotte $
// Definition for Win32 Export directives.
// This file is generated automatically by generate_export_file.pl HASTATUS
// ------------------------------
#ifndef HASTATUS_EXPORT_H
#define HASTATUS_EXPORT_H
 
#include "ace/config-all.h"
 
#if defined (ACE_AS_STATIC_LIBS) && !defined (HASTATUS_HAS_DLL)
#  define HASTATUS_HAS_DLL 0
#endif /* ACE_AS_STATIC_LIBS && ! HASTATUS_HAS_DLL */
 
#if !defined (HASTATUS_HAS_DLL)
#  define HASTATUS_HAS_DLL 1
#endif /* ! HASTATUS_HAS_DLL */
 
#if defined (HASTATUS_HAS_DLL) && (HASTATUS_HAS_DLL == 1)
#  if defined (HASTATUS_BUILD_DLL)
#    define HASTATUS_Export ACE_Proper_Export_Flag
#    define HASTATUS_SINGLETON_DECLARATION(T) ACE_EXPORT_SINGLETON_DECLARATION (T)
#    define HASTATUS_SINGLETON_DECLARE(SINGLETON_TYPE, CLASS, LOCK) ACE_EXPORT_SINGLETON_DECLARE(SINGLETON_TYPE, CLASS, LOCK)
#  else /* HASTATUS_BUILD_DLL */
#    define HASTATUS_Export ACE_Proper_Import_Flag
#    define HASTATUS_SINGLETON_DECLARATION(T) ACE_IMPORT_SINGLETON_DECLARATION (T)
#    define HASTATUS_SINGLETON_DECLARE(SINGLETON_TYPE, CLASS, LOCK) ACE_IMPORT_SINGLETON_DECLARE(SINGLETON_TYPE, CLASS, LOCK)
#  endif /* HASTATUS_BUILD_DLL */
#else /* HASTATUS_HAS_DLL == 1 */
#  define HASTATUS_Export
#  define HASTATUS_SINGLETON_DECLARATION(T)
#  define HASTATUS_SINGLETON_DECLARE(SINGLETON_TYPE, CLASS, LOCK)
#endif /* HASTATUS_HAS_DLL == 1 */
 
// Set HASTATUS_NTRACE = 0 to turn on library specific tracing even if
// tracing is turned off for ACE.
#if !defined (HASTATUS_NTRACE)
#  if (ACE_NTRACE == 1)
#    define HASTATUS_NTRACE 1
#  else /* (ACE_NTRACE == 1) */
#    define HASTATUS_NTRACE 0
#  endif /* (ACE_NTRACE == 1) */
#endif /* !HASTATUS_NTRACE */
 
#if (HASTATUS_NTRACE == 1)
#  define HASTATUS_TRACE(X)
#else /* (HASTATUS_NTRACE == 1) */
#  define HASTATUS_TRACE(X) ACE_TRACE _IMPL(X)
#endif /* (HASTATUS_NTRACE == 1) */
 
#endif /* HASTATUS_EXPORT_H */
 
// End of auto generated file.

HA_Status_Dynamic.cpp

/**
 * $Id: HA_Status_Dynamic.cpp 80826 2008-03-04 14:51:23Z wotte $
 *
 * Home Automation Status server. Sample code from The ACE Programmer's Guide,
 * Copyright 2003 Addison-Wesley. All Rights Reserved.
 */
 
#include "ace/OS_NS_stdio.h"
#include "ace/OS_NS_string.h"
#include "ace/Configuration.h"
#include "ace/Configuration_Import_Export.h"
#include "ace/Get_Opt.h"
#include "HA_Status_Dynamic.h"
 
// Listing 1 code/ch19
int
HA_Status::init (int argc, ACE_TCHAR *argv[])
{
  static const ACE_TCHAR options[] = ACE_TEXT (":f:");
  ACE_Get_Opt cmd_opts (argc, argv, options, 0);
  if (cmd_opts.long_option
      (ACE_TEXT ("config"), 'f', ACE_Get_Opt::ARG_REQUIRED) == -1)
    return -1;
  int option;
  ACE_TCHAR config_file[MAXPATHLEN];
  ACE_OS::strcpy (config_file, ACE_TEXT ("HAStatus.conf"));
  while ((option = cmd_opts ()) != EOF)
    switch (option)
      {
      case 'f':
        ACE_OS::strncpy (config_file,
                         cmd_opts.opt_arg (),
                         MAXPATHLEN);
        break;
      case ':':
        ACE_ERROR_RETURN ((LM_ERROR,
                           ACE_TEXT ("-%c requires an argument\n"),
                           cmd_opts.opt_opt ()),
                          -1);
      default:
        ACE_ERROR_RETURN ((LM_ERROR,
                           ACE_TEXT ("Parse error.\n")),
                          -1);
      }
 
  ACE_Configuration_Heap config;
  config.open ();
  ACE_Registry_ImpExp config_importer (config);
  if (config_importer.import_config (config_file) == -1)
    ACE_ERROR_RETURN ((LM_ERROR,
                       ACE_TEXT ("%p\n"),
                       config_file),
                      -1);
 
  ACE_Configuration_Section_Key status_section;
  if (config.open_section (config.root_section (),
                           ACE_TEXT ("HAStatus"),
                           0,
                           status_section) == -1)
    ACE_ERROR_RETURN ((LM_ERROR,
                       ACE_TEXT ("%p\n"),
                       ACE_TEXT ("Can't open HAStatus section")),
                      -1);
 
  u_int status_port;
  if (config.get_integer_value (status_section,
                                ACE_TEXT ("ListenPort"),
                                status_port) == -1)
    ACE_ERROR_RETURN ((LM_ERROR,
                       ACE_TEXT ("HAStatus ListenPort ")
                       ACE_TEXT ("does not exist\n")),
                      -1);
  this->listen_addr_.set (static_cast<u_short> (status_port));
 
  if (this->acceptor_.open (this->listen_addr_) != 0)
    ACE_ERROR_RETURN ((LM_ERROR,
                       ACE_TEXT ("HAStatus %p\n"),
                       ACE_TEXT ("accept")),
                      -1);
 
  return 0;
}
// Listing 1
 
// Listing 2 code/ch19
int
HA_Status::fini (void)
{
  this->acceptor_.close ();
  return 0;
}
// Listing 2
 
// Listing 3 code/ch19
int
HA_Status::info (ACE_TCHAR **str, size_t len) const
  {
    ACE_TCHAR buf[BUFSIZ];
    ACE_OS::sprintf (buf,
                     ACE_TEXT ("HAStatus listening on port %hu\n"),
                     this->listen_addr_.get_port_number ());
    if (*str == 0)
      *str = ACE::strnew (buf);
    else
      ACE_OS::strncpy (*str, buf, len);
    return static_cast<int> (ACE_OS::strlen (*str));
  }
// Listing 3
 
// Listing 4 code/ch19
ACE_FACTORY_DEFINE (HASTATUS, HA_Status)
// Listing 4

HA_Status_Dynamic.h

/**
 * $Id: HA_Status_Dynamic.h 91730 2010-09-13 09:31:11Z johnnyw $
 *
 * Home Automation Status server. Sample code from The ACE Programmer's Guide,
 * copyright 2003 Addison-Wesley. All Rights Reserved.
 */
 
#ifndef __HASTATUS_H_
#define __HASTATUS_H_
 
// Listing 1 code/ch19
#include "ace/Acceptor.h"
#include "ace/INET_Addr.h"
#include "ace/SOCK_Stream.h"
#include "ace/SOCK_Acceptor.h"
#include "ace/Service_Object.h"
#include "ace/Svc_Handler.h"
 
#include "HASTATUS_export.h"
 
class ClientHandler :
      public ACE_Svc_Handler<ACE_SOCK_STREAM, ACE_NULL_SYNCH>
{
    // ... Same as previous examples.
};
 
class HASTATUS_Export HA_Status : public ACE_Service_Object
{
  public:
    virtual int init (int argc, ACE_TCHAR *argv[]);
 
    virtual int fini (void);
 
    virtual int info (ACE_TCHAR **str, size_t len) const;
 
  private:
    ACE_Acceptor<ClientHandler, ACE_SOCK_ACCEPTOR> acceptor_;
    ACE_INET_Addr listen_addr_;
};
// Listing 1
 
#endif /* __HASTATUS_H_ */

HA_Status_Static.cpp

/**
 * $Id: HA_Status_Static.cpp 80826 2008-03-04 14:51:23Z wotte $
 *
 * Home Automation Status server. Sample code from The ACE Programmer's Guide,
 * Copyright 2003 Addison-Wesley. All Rights Reserved.
 */
 
#include "ace/OS_NS_stdio.h"
#include "ace/OS_NS_string.h"
#include "ace/Configuration.h"
#include "ace/Configuration_Import_Export.h"
#include "ace/Get_Opt.h"
#include "HA_Status_Static.h"
 
// Listing 1 code/ch19
int
HA_Status::init (int argc, ACE_TCHAR *argv[])
{
  static const ACE_TCHAR options[] = ACE_TEXT (":f:");
  ACE_Get_Opt cmd_opts (argc, argv, options, 0);
  if (cmd_opts.long_option
      (ACE_TEXT ("config"), 'f', ACE_Get_Opt::ARG_REQUIRED) == -1)
    return -1;
  int option;
  ACE_TCHAR config_file[MAXPATHLEN];
  ACE_OS::strcpy (config_file, ACE_TEXT ("HAStatus.conf"));
  while ((option = cmd_opts ()) != EOF)
    switch (option)
      {
      case 'f':
        ACE_OS::strncpy (config_file,
                         cmd_opts.opt_arg (),
                         MAXPATHLEN);
        break;
      case ':':
        ACE_ERROR_RETURN
          ((LM_ERROR, ACE_TEXT ("-%c requires an argument\n"),
            cmd_opts.opt_opt ()),
           -1);
      default:
        ACE_ERROR_RETURN
          ((LM_ERROR, ACE_TEXT ("Parse error.\n")), -1);
      }
 
  ACE_Configuration_Heap config;
  config.open ();
  ACE_Registry_ImpExp config_importer (config);
  if (config_importer.import_config (config_file) == -1)
    ACE_ERROR_RETURN ((LM_ERROR,
                       ACE_TEXT ("%p\n"),
                       config_file),
                      -1);
 
  ACE_Configuration_Section_Key status_section;
  if (config.open_section (config.root_section (),
                           ACE_TEXT ("HAStatus"),
                           0,
                           status_section) == -1)
    ACE_ERROR_RETURN ((LM_ERROR,
                       ACE_TEXT ("%p\n"),
                       ACE_TEXT ("Can't open HAStatus section")),
                      -1);
 
  u_int status_port;
  if (config.get_integer_value (status_section,
                                ACE_TEXT ("ListenPort"),
                                status_port) == -1)
    ACE_ERROR_RETURN ((LM_ERROR,
                       ACE_TEXT ("HAStatus ListenPort does ")
                       ACE_TEXT ("not exist\n")),
                      -1);
  this->listen_addr_.set (static_cast<u_short> (status_port));
 
  if (this->acceptor_.open (this->listen_addr_) != 0)
    ACE_ERROR_RETURN ((LM_ERROR,
                       ACE_TEXT ("HAStatus %p\n"),
                       ACE_TEXT ("accept")),
                      -1);
 
  return 0;
}
// Listing 1
 
// Listing 2 code/ch19
int
HA_Status::fini (void)
{
  this->acceptor_.close ();
  return 0;
}
// Listing 2
 
// Listing 3 code/ch19
int
HA_Status::info (ACE_TCHAR **str, size_t len) const
  {
    ACE_TCHAR buf[BUFSIZ];
    ACE_OS::sprintf (buf, ACE_TEXT ("HAStatus listening on port %hu\n"),
                     this->listen_addr_.get_port_number ());
    if (*str == 0)
      *str = ACE::strnew (buf);
    else
      ACE_OS::strncpy (*str, buf, len);
    return static_cast<int> (ACE_OS::strlen (*str));
  }
// Listing 3
 
// Listing 4 code/ch19
ACE_FACTORY_DEFINE (ACE_Local_Service, HA_Status)
 
ACE_STATIC_SVC_DEFINE (HA_Status_Descriptor,
                       ACE_TEXT ("HA_Status_Static_Service"),
                       ACE_SVC_OBJ_T,
                       &ACE_SVC_NAME (HA_Status),
                       ACE_Service_Type::DELETE_THIS |
                       ACE_Service_Type::DELETE_OBJ,
                       0)  // Service not initially active
 
ACE_STATIC_SVC_REQUIRE (HA_Status_Descriptor)
// Listing 4

HA_Status_Static.h

/**
 * $Id: HA_Status_Static.h 91730 2010-09-13 09:31:11Z johnnyw $
 *
 * Home Automation Status server. Sample code from The ACE Programmer's Guide,
 * copyright 2003 Addison-Wesley. All Rights Reserved.
 */
 
#ifndef __HASTATUS_H_
#define __HASTATUS_H_
 
// Listing 1 code/ch19
#include "ace/Acceptor.h"
#include "ace/INET_Addr.h"
#include "ace/SOCK_Stream.h"
#include "ace/SOCK_Acceptor.h"
#include "ace/Service_Object.h"
#include "ace/Svc_Handler.h"
#include "ace/Service_Config.h"
 
class ClientHandler :
      public ACE_Svc_Handler<ACE_SOCK_STREAM, ACE_NULL_SYNCH>
{
    // ... Same as previous examples.
};
 
class HA_Status : public ACE_Service_Object
{
  public:
    virtual int init (int argc, ACE_TCHAR *argv[]);
    virtual int fini (void);
    virtual int info (ACE_TCHAR **str, size_t len) const;
 
  private:
    ACE_Acceptor<ClientHandler, ACE_SOCK_ACCEPTOR> acceptor_;
    ACE_INET_Addr listen_addr_;
};
// Listing 1
 
#endif /* __HASTATUS_H_ */

status.ini

[HAStatus]
"ListenPort"=dword:000001ec