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// $Id$
// ===========================================================
//
//
// = LIBRARY
// TAO/examples/Callback_Quoter
//
// = FILENAME
// Notifier_Input_Handler.cpp
//
// = DESCRIPTION
// Implementation of the callback quoter Notifier_Input_Handler class.
//
// = AUTHOR
// Kirthika Parameswaran <kirthika@cs.wustl.edu>
//
// ===========================================================
#include "Notifier_Input_Handler.h"
#include "tao/debug.h"
#include "tao/ORB_Core.h"
#include "ace/Get_Opt.h"
#include "ace/OS_NS_unistd.h"
#include "ace/os_include/os_ctype.h"
// Constructor.
Notifier_Input_Handler::Notifier_Input_Handler (void)
: ior_output_file_ (0),
argc_ (0),
argv_ (0),
using_naming_service_ (1)
{
// no-op.
}
// Destructor.
Notifier_Input_Handler::~Notifier_Input_Handler (void)
{
// Make sure to cleanup the STDIN handler.
if (ACE_Event_Handler::remove_stdin_handler
(this->notifier_i_.orb_->orb_core ()->reactor (),
this->notifier_i_.orb_->orb_core ()->thr_mgr ()) == -1)
ACE_ERROR ((LM_ERROR,
"%p\n",
"remove_stdin_handler"));
}
// The naming service is initialized and the naming context as well as
// the object name is bound to the naming server.
int
Notifier_Input_Handler::init_naming_service (void)
{
CORBA::ORB_var orb = this->orb_manager_.orb ();
if (this->naming_server_.init (orb.in ()) == -1)
return -1;
// create the name for the naming service
CosNaming::Name notifier_obj_name (1);
notifier_obj_name.length (1);
notifier_obj_name[0].id = CORBA::string_dup ("Notifier");
// (re)Bind the object.
try
{
Notifier_var notifier_obj = notifier_i_._this ();
this->orb_manager_.activate_poa_manager ();
naming_server_->rebind (notifier_obj_name,
notifier_obj.in());
}
catch (const CosNaming::NamingContext::AlreadyBound& ex)
{
ACE_ERROR_RETURN ((LM_ERROR,
"Unable to bind %s \n",
"Notifier"),
-1);
}
return 0;
}
// Parse the command-line arguments and set options.
int
Notifier_Input_Handler::parse_args (void)
{
ACE_Get_Opt get_opts (this->argc_, this->argv_, "df:s ");
int c;
while ((c = get_opts ()) != -1)
switch (c)
{
case 'd': // debug flag.
TAO_debug_level++; ///*****
break;
case 'f': // output the IOR toi a file.
this->ior_output_file_ = ACE_OS::fopen (get_opts.opt_arg (), "w");
if (this->ior_output_file_ == 0)
ACE_ERROR_RETURN ((LM_ERROR,
"Unable to open %s for writing: %p\n",
get_opts.opt_arg ()),
-1);
break;
case 's': // don't use the naming service
this->using_naming_service_ = 0;
break;
case '?': // display help for use of the server.
default:
ACE_ERROR_RETURN ((LM_ERROR,
"usage: %s"
" [-d]"
" [-f] <ior_output_file>"
" [-s]"
"\n",
argv_ [0]),
1);
}
// Indicates successful parsing of command line.
return 0;
}
// Initialize the server.
int
Notifier_Input_Handler::init (int argc,
char *argv[])
{
// Call the init of <TAO_ORB_Manager> to initialize the ORB and
// create the child poa under the root POA.
this->argc_ = argc;
this->argv_ = argv;
if (this->orb_manager_.init_child_poa (this->argc_,
this->argv_,
"child_poa") == -1)
ACE_ERROR_RETURN ((LM_ERROR,
"%p\n",
"init_child_poa"),
-1);
int retval = this->parse_args ();
if (retval != 0)
return retval;
// Register our <Input_Handler> to handle STDIN events, which will
// trigger the <handle_input> method to process these events.
CORBA::ORB_var orb = this->orb_manager_.orb ();
if (ACE_Event_Handler::register_stdin_handler
(this,
orb->orb_core ()->reactor (),
orb->orb_core ()->thr_mgr ()) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
"%p\n",
"register_stdin_handler"),
-1);
// Stash our ORB pointer for later reference.
this->notifier_i_.orb (orb.in ());
// Activate the servant in the POA.
CORBA::String_var str =
this->orb_manager_.activate_under_child_poa ("Notifier",
&this->notifier_i_);
ACE_DEBUG ((LM_DEBUG,
"The IOR is: <%s>\n",
str.in ()));
if (this->ior_output_file_)
{
ACE_OS::fprintf (this->ior_output_file_,
"%s",
str.in ());
ACE_OS::fclose (this->ior_output_file_);
}
if (this->using_naming_service_)
{
this->init_naming_service ();
}
return 0;
}
int
Notifier_Input_Handler::run (void)
{
// Run the main event loop for the ORB.
ACE_DEBUG ((LM_DEBUG,
" Type \"q\" to quit \n "));
int result = this->orb_manager_.run ();
if (result == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"Notifier_Input_Handler::run"),
-1);
}
return 0;
}
int
Notifier_Input_Handler::handle_input (ACE_HANDLE)
{
char buf[BUFSIZ];
try
{
// The string could read contains \n\0 hence using ACE_OS::read
// which returns the no of bytes read and hence i can manipulate
// and remove the devil from the picture i.e '\n' ! ;)
ssize_t strlen = ACE_OS::read (ACE_STDIN,
buf,
sizeof buf);
if (buf[strlen -1] == '\n')
buf[strlen -1] = '\0';
ACE_DEBUG ((LM_DEBUG,
"%s",
buf));
if (tolower(buf[0]) == 'q')
{
// @@ Please remove this call if it's not used.
// (this->notifier_i_.consumer_map_).close();
this->notifier_i_.shutdown ();
}
}
catch (const CORBA::Exception& ex)
{
ex._tao_print_exception ("Input_Handler::init");
return -1;
}
return 0;
}
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