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// $Id$
#include "Consumer_Input_Handler.h"
#include "Consumer_Handler.h"
ACE_RCSID(Consumer, Consumer_Input_Handler, "$Id$")
Consumer_Input_Handler::Consumer_Input_Handler (void)
: receiver_handler_ (0),
consumer_initiated_shutdown_ (0)
{
// No-Op.
}
Consumer_Input_Handler::~Consumer_Input_Handler (void)
{
// No-Op.
}
int
Consumer_Input_Handler::consumer_initiated_shutdown (void)
{
return this->consumer_initiated_shutdown_;
}
void
Consumer_Input_Handler::consumer_initiated_shutdown (int c)
{
this->consumer_initiated_shutdown_ = c;
}
int
Consumer_Input_Handler::close (void)
{
ACE_DEBUG ((LM_DEBUG,
"closing down Consumer::Input_Handler\n"));
Event_Comm::Consumer *receiver =
this->receiver_handler_->receiver ();
Event_Comm::Notifier *notifier =
this->receiver_handler_->notifier ();
if (this->consumer_initiated_shutdown ())
{
// Only try to unsubscribe if the Consumer initiated the
// shutdown. Otherwise, the Notifier initiated it and it has
// probably gone away by now!
TAO_TRY
{
// Gracefully shutdown the Receiver by removing it from the
// Notifier's internal map.
if (notifier != 0)
notifier->unsubscribe (receiver,
"",
TAO_TRY_ENV);
TAO_CHECK_ENV;
}
TAO_CATCHANY
{
TAO_TRY_ENV.print_exception ("Consumer_Input_Handler::handle_close\n");
}
TAO_ENDTRY;
}
// Make sure to cleanup the STDIN handler.
if (ACE_Event_Handler::remove_stdin_handler
(TAO_ORB_Core_instance ()->reactor (),
TAO_ORB_Core_instance ()->thr_mgr ()) == -1)
ACE_ERROR ((LM_ERROR,
"%p\n",
"remove_stdin_handler"));
return 0;
}
int Consumer_Input_Handler::initialize (Consumer_Handler *ch)
{
receiver_handler_ = ch;
if (ACE_Event_Handler::register_stdin_handler
(this,
TAO_ORB_Core_instance ()->reactor (),
TAO_ORB_Core_instance ()->thr_mgr ()) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
"%p\n",
"register_stdin_handler"),
-1);
return 0;
}
int
Consumer_Input_Handler::handle_input (ACE_HANDLE h)
{
char buf[BUFSIZ];
// Read up to BUFSIZ worth of data from ACE_HANDLE h.
ssize_t n = ACE_OS::read (h, buf, sizeof buf - 1);
if (n > 0)
{
// Null terminate the buffer, replacing the '\n' with '\0'.
if (buf[n - 1] == '\n' || buf[n - 1] == EOF)
buf[n - 1] = '\0';
else
buf[n] = '\0';
ACE_DEBUG ((LM_DEBUG,
"notifying for event %s\n",
buf));
}
else
{
// If nothing is read, do nothing.
return 0;
}
Event_Comm::Notifier *notifier =
this->receiver_handler_->notifier ();
ACE_ASSERT (notifier != 0);
if (ACE_OS::strncmp (buf, "quit", 4) == 0)
{
// Consumer wants to shutdown.
this->consumer_initiated_shutdown (1);
// Tell the main event loop to shutdown.
this->receiver_handler_->shutdown ();
}
else
{
TAO_TRY
{
Event_Comm::Event event;
event.tag_ = ACE_OS::strdup (buf);
notifier->push (event, TAO_TRY_ENV);
TAO_CHECK_ENV;
}
TAO_CATCHANY
{
TAO_TRY_ENV.print_exception("Unexpected exception\n");
}
TAO_ENDTRY;
}
/* NOTREACHED */
return 0;
}
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