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// $Id$
#include "tao/Timeprobe.h"
#include "tao/debug.h"
#include "tao/ORB_Core.h"
#include "tao/ORB.h"
#include "tao/CDR.h"
#include "tao/Messaging_Policy_i.h"
#include "tao/Server_Strategy_Factory.h"
#include "tao/Connection_Purging_Strategy.h"
#include "tao/Base_Transport_Property.h"
#include "DIOP_Connection_Handler.h"
#include "DIOP_Transport.h"
#include "DIOP_Endpoint.h"
#if !defined (__ACE_INLINE__)
# include "DIOP_Connection_Handler.i"
#endif /* ! __ACE_INLINE__ */
ACE_RCSID(tao, DIOP_Connect, "$Id$")
TAO_DIOP_Connection_Handler::TAO_DIOP_Connection_Handler (ACE_Thread_Manager *t)
: TAO_DIOP_SVC_HANDLER (t, 0 , 0),
TAO_Connection_Handler (0),
pending_upcalls_ (1),
tcp_properties_ (0)
{
// This constructor should *never* get called, it is just here to
// make the compiler happy: the default implementation of the
// Creation_Strategy requires a constructor with that signature, we
// don't use that implementation, but some (most?) compilers
// instantiate it anyway.
ACE_ASSERT (this->orb_core () != 0);
}
TAO_DIOP_Connection_Handler::TAO_DIOP_Connection_Handler (TAO_ORB_Core *orb_core,
CORBA::Boolean /* flag*/,
void *arg)
: TAO_DIOP_SVC_HANDLER (orb_core->thr_mgr (), 0, 0),
TAO_Connection_Handler (orb_core),
pending_upcalls_ (1),
tcp_properties_ (ACE_static_cast
(TAO_DIOP_Properties *, arg))
{
TAO_DIOP_Transport* specific_transport = 0;
ACE_NEW(specific_transport,
TAO_DIOP_Transport(this, orb_core, 0));
// store this pointer (indirectly increment ref count)
this->transport(specific_transport);
TAO_Transport::release (specific_transport);
}
TAO_DIOP_Connection_Handler::~TAO_DIOP_Connection_Handler (void)
{
this->udp_socket_.close ();
}
// DIOP Additions - Begin
ACE_HANDLE
TAO_DIOP_Connection_Handler::get_handle (void) const
{
return this->udp_socket_.get_handle ();
}
const ACE_INET_Addr &
TAO_DIOP_Connection_Handler::addr (void)
{
return this->addr_;
}
void
TAO_DIOP_Connection_Handler::addr (const ACE_INET_Addr &addr)
{
this->addr_ = addr;
}
const ACE_INET_Addr &
TAO_DIOP_Connection_Handler::local_addr (void)
{
return local_addr_;
}
void
TAO_DIOP_Connection_Handler::local_addr (const ACE_INET_Addr &addr)
{
local_addr_ = addr;
}
const ACE_SOCK_Dgram &
TAO_DIOP_Connection_Handler::dgram (void)
{
return this->udp_socket_;
}
// DIOP Additions - End
int
TAO_DIOP_Connection_Handler::open (void*)
{
this->udp_socket_.open (this->local_addr_);
ACE_DEBUG ((LM_DEBUG,
"Opened connector on %s:%d\n",
this->local_addr_.get_host_name (),
this->local_addr_.get_port_number ()));
// Set the id in the transport now that we're active.
this->transport ()->id ((int) this->get_handle ());
return 0;
}
int
TAO_DIOP_Connection_Handler::open_server (void)
{
this->udp_socket_.open (this->local_addr_);
ACE_DEBUG ((LM_DEBUG,
"Opened acceptor on %s:%d\n",
this->local_addr_.get_host_name (),
this->local_addr_.get_port_number ()));
this->transport ()->id ((int) this->get_handle ());
return 0;
}
int
TAO_DIOP_Connection_Handler::activate (long flags,
int n_threads,
int force_active,
long priority,
int grp_id,
ACE_Task_Base *task,
ACE_hthread_t thread_handles[],
void *stack[],
size_t stack_size[],
ACE_thread_t thread_names[])
{
if (TAO_debug_level)
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("TAO (%P|%t) DIOP_Connection_Handler::activate %d ")
ACE_TEXT ("threads, flags = %d\n"),
n_threads,
flags,
THR_BOUND));
// @@ Michael: I believe we do not need active service handlers right now.
// @@ Frank: Not disabled yet...
// Set the id in the transport now that we're active.
this->transport ()->id ((int) this->get_handle ());
return TAO_DIOP_SVC_HANDLER::activate (flags,
n_threads,
force_active,
priority,
grp_id,
task,
thread_handles,
stack,
stack_size,
thread_names);
}
int
TAO_DIOP_Connection_Handler::svc (void)
{
// @@ Michael: I believe we do not need active service handlers right now.
// @@ Frank: Not yet...
// This method is called when an instance is "activated", i.e.,
// turned into an active object. Presumably, activation spawns a
// thread with this method as the "worker function".
// Clear the non-blocking mode here
ACE_Flag_Manip::clr_flags (this->get_handle (),
ACE_NONBLOCK);
// Call the implementation here
return this->svc_i ();
}
int
TAO_DIOP_Connection_Handler::handle_close (ACE_HANDLE handle,
ACE_Reactor_Mask rm)
{
// @@ Alex: we need to figure out if the transport decides to close
// us or something else. If it is something else (for example
// the cached connector trying to make room for other
// connections) then we should let the transport know, so it can
// in turn take appropiate action (such as sending exceptions to
// all waiting reply handlers).
if (TAO_debug_level)
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("TAO (%P|%t) ")
ACE_TEXT ("DIOP_Connection_Handler::handle_close ")
ACE_TEXT ("(%d, %d)\n"),
handle,
rm));
--this->pending_upcalls_;
if (this->pending_upcalls_ <= 0)
{
// @@ Why are we doing checks for is_registered flags here if the
// handlers are not registered with the reactor? - Bala
if (this->transport ()->wait_strategy ()->is_registered ())
{
// @@ Frank: Added reactor check. not sure if this is right?
if (this->reactor ())
{
// Make sure there are no timers.
this->reactor ()->cancel_timer (this);
}
// Set the flag to indicate that it is no longer registered with
// the reactor, so that it isn't included in the set that is
// passed to the reactor on ORB destruction.
this->transport ()->wait_strategy()->is_registered (0);
}
// Close the handle..
if (this->get_handle () != ACE_INVALID_HANDLE)
{
// Purge the entry too
this->transport ()->mark_invalid ();
// Signal the transport that we will no longer have
// a reference to it. This will eventually call
// TAO_Transport::release ().
this->transport (0);
}
// Follow usual Reactor-style lifecycle semantics and commit
// suicide.
this->destroy ();
}
return 0;
}
ACE_HANDLE
TAO_DIOP_Connection_Handler::fetch_handle (void)
{
return this->get_handle ();
}
int
TAO_DIOP_Connection_Handler::add_transport_to_cache (void)
{
ACE_INET_Addr addr;
// Get the peername.
if (this->peer ().get_remote_addr (addr) == -1)
return -1;
// Construct an DIOP_Endpoint object
TAO_DIOP_Endpoint endpoint (addr,
0);
// Construct a property object
TAO_Base_Transport_Property prop (&endpoint);
// Add the handler to Cache
return this->orb_core ()->purging_strategy ()->add_to_cache (&prop,
this->transport ());
}
// @@ Frank: Hopefully this isn't needed
/*
int
TAO_DIOP_Connection_Handler::process_listen_point_list (
DIOP::ListenPointList &listen_list)
{
// Get the size of the list
CORBA::ULong len = listen_list.length ();
for (CORBA::ULong i = 0; i < len; ++ i)
{
DIOP::ListenPoint listen_point = listen_list[i];
ACE_INET_Addr addr (listen_point.port,
listen_point.host.in ());
// Construct an DIOP_Endpoint object
TAO_DIOP_Endpoint endpoint (addr,
0);
// Construct a property object
TAO_Base_Transport_Property prop (&endpoint);
// Mark the connection as bidirectional
prop.set_bidir_flag (1);
// The property for this handler has changed. Recache the
// handler with this property
int retval = this->transport ()->recache_transport (&prop);
if (retval == -1)
return retval;
// Make the handler idle and ready for use
this->transport ()->make_idle ();
}
return 0;
}
*/
int
TAO_DIOP_Connection_Handler::handle_input (ACE_HANDLE h)
{
return this->handle_input_i (h);
}
int
TAO_DIOP_Connection_Handler::handle_input_i (ACE_HANDLE,
ACE_Time_Value *max_wait_time)
{
this->pending_upcalls_++;
// Call the transport read the message
int result = this->transport ()->read_process_message (max_wait_time);
// Now the message has been read
if (result == -1 && TAO_debug_level > 0)
{
ACE_DEBUG ((LM_DEBUG,
ACE_TEXT ("TAO (%P|%t) - %p\n"),
ACE_TEXT ("DIOP_Connection_Handler::handle_input_i \n")));
}
// The upcall is done. Bump down the reference count
if (--this->pending_upcalls_ <= 0)
result = -1;
// @@ Michael:
// We always return 0, as we do not have any
// send errors.
return 0;
}
// @@ Frank: From DIOP_Connect.cpp
int
TAO_DIOP_Connection_Handler::handle_cleanup (void)
{
// Deregister this handler with the ACE_Reactor.
if (this->reactor ())
{
ACE_Reactor_Mask mask =
ACE_Event_Handler::ALL_EVENTS_MASK | ACE_Event_Handler::DONT_CALL;
// Make sure there are no timers.
this->reactor ()->cancel_timer (this);
// Remove self from reactor.
this->reactor ()->remove_handler (this, mask);
}
return 0;
}
// ****************************************************************
#if defined (ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION)
// Instantiated in IIOP_Connection_Handler.cpp
//template class ACE_Svc_Handler<ACE_SOCK_STREAM, ACE_NULL_SYNCH>;
template class ACE_Concurrency_Strategy<TAO_DIOP_Connection_Handler>;
template class ACE_Creation_Strategy<TAO_DIOP_Connection_Handler>;
#elif defined (ACE_HAS_TEMPLATE_INSTANTIATION_PRAGMA)
// Instantiated in IIOP_Connection_Handler.cpp
//#pragma instantiate ACE_Svc_Handler<ACE_SOCK_STREAM, ACE_NULL_SYNCH>
#pragma instantiate ACE_Concurrency_Strategy<TAO_DIOP_Connection_Handler>
#pragma instantiate ACE_Creation_Strategy<TAO_DIOP_Connection_Handler>
#endif /* ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION */
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