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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),
handle_ (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;
}
ACE_HANDLE
Consumer_Input_Handler::get_handle (void) const
{
return this->handle_;
}
int
Consumer_Input_Handler::handle_close (ACE_HANDLE, ACE_Reactor_Mask)
{
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 Supplier 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;
}
// Don't execute a callback here otherwise we'll recurse
// indefinitely!
if (this->receiver_handler_->reactor()->remove_handler
(this,
ACE_Event_Handler::READ_MASK | ACE_Event_Handler::DONT_CALL) == -1)
ACE_ERROR ((LM_ERROR,
"%p\n",
"remove_handler"));
return 0;
}
int Consumer_Input_Handler::initialize (Consumer_Handler *ch,
ACE_HANDLE handle)
{
receiver_handler_ = ch;
handle_ = handle;
if (this->receiver_handler_->reactor()->register_handler
(this,
ACE_Event_Handler::READ_MASK) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
"Consumer_Input_Handler::Input_Handler\n"), -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
{
ACE_OS::strcpy (buf, "quit");
ACE_DEBUG ((LM_DEBUG,
"shutting down Input_Handler\n"));
}
Event_Comm::Notifier *notifier =
this->receiver_handler_->notifier ();
ACE_ASSERT (notifier != 0);
if (ACE_OS::strcmp (buf, "quit") == 0)
{
// Consumer wants to shutdown.
this->consumer_initiated_shutdown (1);
// Tell the main event loop to shutdown.
this->receiver_handler_->close ();
}
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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