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// $Id$
#if !defined (SPIPE_ACCEPTOR_C)
#define SPIPE_ACCEPTOR_C
#include "ace/OS_NS_string.h"
#include "ace/SPIPE_Addr.h"
#include "ace/SPIPE_Acceptor.h"
#include "ace/Proactor.h"
#include "ace/Get_Opt.h"
#include "ace/Signal.h"
#include "SPIPE-acceptor.h"
ACE_RCSID(blocking, SPIPE_acceptor, "$Id$")
#if ((defined (ACE_WIN32) && !defined (ACE_HAS_WINCE)) || (defined (ACE_HAS_AIO_CALLS)))
Svc_Handler::Svc_Handler (void)
: mb_ (BUFSIZ + 1)
{
// An extra byte for null termination.
this->mb_.size (BUFSIZ);
}
Svc_Handler::~Svc_Handler (void)
{
}
int
Svc_Handler::open (void *)
{
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("client connected on handle %d\n"),
this->peer ().get_handle ()));
if (this->ar_.open (*this,
this->peer ().get_handle ()) == -1)
return -1;
return this->ar_.read (this->mb_,
this->mb_.size ());
}
void
Svc_Handler::handle_read_stream (const ACE_Asynch_Read_Stream::Result &result)
{
if (result.success () && result.bytes_transferred () > 0)
{
result.message_block ().rd_ptr ()[result.message_block ().length ()] = '\0';
// Print out the message received from the server.
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("(%t) message size %d.\n"),
result.message_block ().length ()));
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("%C"),
result.message_block ().rd_ptr ()));
// Reset the message block here to make sure multiple writes to
// the pipe don't keep appending to the message_block!
this->mb_.reset ();
this->ar_.read (this->mb_, this->mb_.size ());
}
else
ACE_Proactor::end_event_loop ();
}
IPC_Server::IPC_Server (void)
: n_threads_ (1),
shutdown_ (0)
{
ACE_OS::strcpy (rendezvous_, ACE_TEXT ("acepipe"));
}
IPC_Server::~IPC_Server (void)
{
}
int
IPC_Server::handle_signal (int,
siginfo_t *,
ucontext_t *)
{
ACE_LOG_MSG->log (LM_INFO, ACE_TEXT ("IPC_Server::handle_signal().\n"));
// Flag the main <svc> loop to shutdown.
this->shutdown_ = 1;
this->acceptor ().close (); // Close underlying acceptor.
// This should cause the <accept> to fail, which will "bounce"
// us out of the loop in <svc>.
return 0;
}
int
IPC_Server::init (int argc, ACE_TCHAR *argv[])
{
if (this->parse_args (argc, argv) == -1)
return -1;
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("Opening %s\n"), rendezvous_));
// Initialize named pipe listener.
if (this->open (ACE_SPIPE_Addr (rendezvous_)) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("%p\n"),
ACE_TEXT ("open")), 1);
// Register to receive shutdowns using this handler.
else if (ACE_Reactor::instance ()->register_handler
(SIGINT, this) == -1)
return -1;
else
return 0;
}
int
IPC_Server::fini (void)
{
return 0;
}
int
IPC_Server::parse_args (int argc, ACE_TCHAR *argv[])
{
ACE_LOG_MSG->open (argv[0]);
ACE_Get_Opt get_opt (argc, argv, ACE_TEXT ("ut:r:"));
for (int c; (c = get_opt ()) != -1; )
{
switch (c)
{
case 'r':
ACE_OS::strncpy (rendezvous_,
get_opt.opt_arg (),
sizeof (rendezvous_) / sizeof (ACE_TCHAR));
break;
case 't':
n_threads_ = ACE_OS::atoi (get_opt.opt_arg ());
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("%s == %d.\n"),
get_opt.opt_arg (),
n_threads_));
ACE_Proactor::instance (2 * n_threads_);
// This is a lame way to tell the proactor how many threads
// we'll be using.
break;
case 'u':
default:
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("usage: %n -t <threads>\n")
ACE_TEXT (" -r <rendezvous>\n")), -1);
break;
}
}
return 0;
}
static ACE_THR_FUNC_RETURN
run_reactor_event_loop (void *)
{
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("(%t) worker thread starting\n")));
ACE_Proactor::run_event_loop ();
return 0;
}
int
IPC_Server::svc (void)
{
// Performs the iterative server activities.
while (this->shutdown_ == 0)
{
Svc_Handler sh;
// Create a new SH endpoint, which performs all processing in
// its open() method (note no automatic restart if errno ==
// EINTR).
if (this->accept (&sh, 0) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("%p\n"),
ACE_TEXT ("accept")),
1);
// SH's destructor closes the stream implicitly but the
// listening endpoint stays open.
else
{
// Run single-threaded.
if (n_threads_ <= 1)
run_reactor_event_loop (0);
else if (ACE_Thread_Manager::instance ()->spawn_n
(n_threads_,
run_reactor_event_loop,
0,
THR_NEW_LWP) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
ACE_TEXT ("%p\n"),
ACE_TEXT ("spawn_n")),
1);
ACE_Thread_Manager::instance ()->wait ();
}
ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("(%t) main thread exiting.\n")));
// Reset the Proactor so another accept will work.
ACE_Proactor::reset_event_loop();
// Must use some other method now to terminate this thing
// instead of the ACE_Signal_Adapter just running
// ACE_Proactor::end_event_loop()... Since this is an
// ACE_Event_Handler, doesn't it seem possible to implement
// a handle_signal() hook, and catch the signal there?
}
}
/* NOTREACHED */
return 0;
}
#endif /* ACE_WIN32 || ACE_HAS_AIO_CALLS*/
#endif /* SPIPE_ACCEPTOR_C */
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