From:	ace-users-bounces@list.isis.vanderbilt.edu on behalf of Jack Lavender 
[jack.lavender@seconcepts.com]
Sent:	Friday, August 01, 2008 3:06 PM
To:	ace-users@list.isis.vanderbilt.edu
Subject:	[ace-users] FW: ACE_Service_Object command line parsing issue


Subject: [area]: [synopsis]

    ACE VERSION: 5.6.5

    HOST MACHINE and OPERATING SYSTEM: Fedora Core 8 Linux

    TARGET MACHINE and OPERATING SYSTEM, if different from HOST:
    COMPILER NAME AND VERSION (AND PATCHLEVEL):

    THE $ACE_ROOT/ace/config.h FILE [if you use a link to a platform-
    specific file, simply state which one]:

---
// -*- C++ -*-
//
// $Id: config.h 425 2008-05-12 22:02:38Z lavender $

// The following configuration file is designed to work for Linux // platforms 
using GNU C++.

#ifndef ACE_CONFIG_LINUX_H
#define ACE_CONFIG_LINUX_H
#include /**/ "ace/pre.h"

#define ACE_PLATFORM_CONFIG config-linux.h

#include "ace/config-linux-common.h"

#define ACE_HAS_SVR4_DYNAMIC_LINKING
#define ACE_HAS_AUTOMATIC_INIT_FINI
#define ACE_HAS_DLSYM_SEGFAULT_ON_INVALID_HANDLE

#define ACE_HAS_REACTOR_NOTIFICATION_QUEUE  // Ken Sedgwick 2006-04-19

#if !defined (ACE_MT_SAFE)
#define ACE_MT_SAFE 1                           // JCEJ 12/22/96        #1
#endif

#if ACE_MT_SAFE
// Yes, we do have threads.
#define ACE_HAS_THREADS
// And they're even POSIX pthreads (LinuxThreads implementation) #define 
ACE_HAS_PTHREADS

// On linux this is part of pthreads
#  if (defined _POSIX_C_SOURCE && (_POSIX_C_SOURCE - 0) >= 199309L)
#    if !defined (ACE_HAS_CLOCK_GETTIME)
#      if !defined(__PGI)
#        define ACE_HAS_CLOCK_GETTIME
#      endif /* __PGI */
#      define ACE_HAS_CLOCK_SETTIME
#    endif  /* !ACE_HAS_CLOCK_GETTIME */
#  endif  /* _POSIX_C_SOURCE >= 199309L */

#if !defined (ACE_HAS_PTHREADS_UNIX98_EXT) #  define ACE_LACKS_RWLOCK_T #else 
#  define ACE_HAS_RECURSIVE_MUTEXES #endif  /* !ACE_HAS_PTHREADS_UNIX98_EXT */

#define ACE_HAS_THREAD_SPECIFIC_STORAGE     // jcej 12/22/96         #2

#define ACE_HAS_RECURSIVE_THR_EXIT_SEMANTICS    // JCEJ 1/7-8/96

#if defined(__GLIBC__)
// Platform supports reentrant functions (i.e., all the POSIX *_r // 
functions).
#define ACE_HAS_REENTRANT_FUNCTIONS

#if (__GLIBC__ < 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 1)
   // Older versions of glibc lacked reentrant netdb functions #  define 
ACE_LACKS_NETDB_REENTRANT_FUNCTIONS

   // glibc < 2.1 lacks pthread_attr_setstacksize() #  define 
ACE_LACKS_PTHREAD_ATTR_SETSTACKSIZE
#endif /* (__GLIBC__ < 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 1) */

// uses ctime_r & asctime_r with only two parameters vs. three #define 
ACE_HAS_2_PARAM_ASCTIME_R_AND_CTIME_R
#endif

#else
// AIO support pulls in the rt library, which pulls in the pthread // library.  
Disable AIO in single-threaded builds.
# undef ACE_HAS_AIO_CALLS
#endif  /* ACE_MT_SAFE */

#define ACE_HAS_IPV6 // Ken Sedgwick 2006-06-14 #define 
ACE_USES_IPV4_IPV6_MIGRATION // Ken Sedgwick 2006-06-14

#define ACE_HAS_ICMP_SUPPORT 1 // Ken Sedgwick 2006-09-05

#define ACE_GCC_HAS_TEMPLATE_INSTANTIATION_VISIBILITY_ATTRS 1  // Ken Sedgwick 
2007-05-05

#include /**/ "ace/post.h"

#endif /* ACE_CONFIG_LINUX_H */
---


    THE $ACE_ROOT/include/makeinclude/platform_macros.GNU FILE [if you
    use a link to a platform-specific file, simply state which one
    (unless this isn't used in this case, e.g., with Microsoft Visual
    C++)]:

---
ssl = 1
include $(ACE_ROOT)/include/makeinclude/platform_linux.GNU
x11 = 1
xt = 1
tk = 1
fl = 1
qt = 1
gl = 1
ace_qtreactor = 1
ace_xtreactor = 1
ace_tkreactor = 1
ace_flreactor = 1
tao_qtresource = 1
tao_xtresource = 1
tao_tkresource = 1
tao_flresource = 1
# Enable optimization
#OCFLAGS = -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-
protector --param=ssp-buffer-size=4 -m32 -march=i386 -mtune=generic -
fasynchronous-unwind-tables OCCFLAGS = -O0
---

    CONTENTS OF $ACE_ROOT/bin/MakeProjectCreator/config/default.features
    (used by MPC when you generate your own makefiles):

using default

    AREA/CLASS/EXAMPLE AFFECTED:
[What example failed?  What module failed to compile?]  N/A


    DOES THE PROBLEM AFFECT:
        COMPILATION? No
        LINKING? No
            On Unix systems, did you run make realclean first? Yes
        EXECUTION? YES
        OTHER (please specify)?



    SYNOPSIS:

My program has used the -b obtion in the svc.conf file to daemonize, as of
5.6.4 it stopped working.
The main I use is attached below (very similar to the netsvcs main).  This 
uses the "ACE_Service_Config::open" call start it all up. When I used gdb to 
step through the code I discoverd the call to ACE_Service_Config::parse_args_i 
was not occuring, or it was not occuring before the it needed to be set.

Thanks in advance for your time.
Jack

    DESCRIPTION:

My Main Program ->

#include "ace/Service_Config.h"
#include "ace/Logging_Strategy.h"
#include "ace/Sig_Adapter.h"
#include "ace/Reactor.h"
int
ACE_TMAIN (int argc, ACE_TCHAR *argv[])
{
	// Turn off Trace Prints
	ACE_Trace::stop_tracing();

	// Try to link in the svc.conf entries dynamically, enabling the
	// "ignore_debug_flag" as the last parameter so that we can override
	// the default ACE_Log_Priority settings in the svc.conf file.
	//
	// Warning - do not try to move the ACE_Reactor signal handling work
	// up to before this call - if the user specified -b (be a daemon),
	// all handles will be closed, including the Reactor's pipe.

	if (ACE_Service_Config::open (argc, argv, ACE_DEFAULT_LOGGER_KEY, 1, 0,
1) == -1)
	{
		if (errno != ENOENT)
			ACE_ERROR_RETURN ((LM_ERROR,"%p\n", "open"), 1);
		else // Use static linking.
		{
			ACE_ERROR_RETURN ((LM_ERROR,"%s\n", "Static Linking not 
supported at this time"), 1);
		}
	}
	else // Use dynamic linking.
	{
		ACE_Sig_Adapter sa ((ACE_Sig_Handler_Ex) 
ACE_Reactor::end_event_loop);
		ACE_Sig_Set sig_set;
		sig_set.sig_add (SIGINT);
		sig_set.sig_add (SIGQUIT);
		// sig_set.sig_add (SIGKILL);
		if (ACE_Reactor::instance ()->register_handler (sig_set,
&sa) == -1)
			ACE_ERROR ((LM_ERROR, "%p\n", "register signals"));
		else
			ACE_Reactor::instance ()->run_reactor_event_loop ();
	}
	return 0;
}


Excerpt from ace/Service_Config.inl (with my comments)->

...
ACE_INLINE int
ACE_Service_Config::open (int argc,
                          ACE_TCHAR *argv[],
                          const ACE_TCHAR *logger_key,
                          bool ignore_static_svcs,
                          bool ignore_default_svc_conf,
                          bool ignore_debug_fla {
  ACE_TRACE ("ACE_Service_Config::open");

// singleton returns the ACE_Service_Config object, but does not parse the 
command line // daemonize decision is made at this level

  if (singleton()->open_i (argv[0],
                           logger_key,
                           ignore_static_svcs,
                           ignore_default_svc_conf,
                           ignore_debug_flag) == -1)
    return -1;

// current returns the ACE_Service_Gestalt object, and parses the command 
line, but useing the gestalt parse, // which does not catch the all the flags.

  return current()->open (argc,
                          argv,
                          logger_key,
                          ignore_static_svcs,
                          ignore_default_svc_conf,
                          ignore_debug_flag); } ...

I am probably just confused how to "open" up the Service properly, but I 
cannot seem to figure out where the ACE_Service_Config::parse_args_i is being 
done anywhere in the code.


As of 5.6.4 the ACE_Service_Gestalt is no longer the parent of the 
ACE_Service_Object. This would seem to imply that the parse_arg method should 
not try to up call. I have experimented with fixing it for my use, but I am 
not sure I understand the full intent of the new relationship structure 
between the Gestalt and the Service Object. 



    REPEAT BY: N/A


    SAMPLE FIX/WORKAROUND: UNK


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