ACE_QoS_Session *
TAO_AV_UDP_QoS_Session_Helper::open_qos_session (TAO_AV_UDP_QoS_Flow_Handler *handler,
ACE_INET_Addr &addr)
{
ACE_QoS_Params qos_params;
ACE_QoS* ace_qos = 0;
FillQoSParams (qos_params,
0,
ace_qos);
// Create a QoS Session Factory.
ACE_QoS_Session_Factory session_factory;
// Ask the factory to create a QoS session.
ACE_QoS_Session *qos_session = session_factory.create_session ();
// Create a destination address for the QoS session. The same
// address should be used for the subscribe call later. A copy
// is made below only to distinguish the two usages of the dest
// address.
ACE_INET_Addr dest_addr (addr);
// A QoS session is defined by the 3-tuple [DestAddr, DestPort,
// Protocol]. Initialize the QoS session.
if (qos_session->open (dest_addr,
IPPROTO_UDP) == -1)
ORBSVCS_ERROR_RETURN ((LM_ERROR,
"Error in opening the QoS session\n"),
0);
else
ORBSVCS_DEBUG ((LM_DEBUG,
"QoS session opened successfully\n"));
if (handler->flowspec_entry ()->role () == TAO_FlowSpec_Entry::TAO_AV_PRODUCER)
{
// This is a sender
qos_session->flags (ACE_QoS_Session::ACE_QOS_SENDER);
}
else if (handler->flowspec_entry ()->role () == TAO_FlowSpec_Entry::TAO_AV_CONSUMER)
{
// This is a receiver
qos_session->flags (ACE_QoS_Session::ACE_QOS_RECEIVER);
}
return qos_session;
}
int
ACE_TMAIN (int argc, ACE_TCHAR * argv[])
{
QoS_Util qos_util(argc, argv);
if (qos_util.parse_args () == -1)
ACE_ERROR_RETURN ((LM_ERROR,
"Error in parsing args\n"),
-1);
// This is a multicast application.
if (qos_util.multicast_flag ())
{
Fill_ACE_QoS fill_ace_qos;
// The application adds the flow specs that it wants into the
// Fill_ACE_QoS. The Fill_ACE_QoS indexes the flow specs by the
// flow spec names. Here the new flowspec being added is g_711.
ACE_CString g_711 ("g_711");
switch (fill_ace_qos.map ().bind (g_711,
new ACE_Flow_Spec (9200,
708,
18400,
0,
0,
ACE_SERVICETYPE_CONTROLLEDLOAD,
368,
368,
25,
1)))
{
case 1 :
ACE_ERROR_RETURN ((LM_ERROR,
"Unable to bind the new flow spec\n"
"The Flow Spec name already exists\n"),
-1);
break;
case -1 :
ACE_ERROR_RETURN ((LM_ERROR,
"Unable to bind the new flow spec\n"),
-1);
break;
}
ACE_DEBUG ((LM_DEBUG,
"g_711 Flow Spec bound successfully\n"));
// This is a receiver. So we fill in the receiving QoS parameters.
ACE_QoS ace_qos_receiver;
if (fill_ace_qos.fill_simplex_receiver_qos (ace_qos_receiver,
g_711) !=0)
ACE_ERROR_RETURN ((LM_ERROR,
"Unable to fill simplex receiver qos\n"),
-1);
else
ACE_DEBUG ((LM_DEBUG,
"Filled up the Receiver QoS parameters\n"));
// Opening a new Multicast Datagram.
ACE_SOCK_Dgram_Mcast_QoS dgram_mcast_qos;
// Multicast Session Address specified by user at command line.
// If this address is not specified,
// <localhost:ACE_DEFAULT_MULTICAST_PORT> is assumed.
ACE_INET_Addr mult_addr (*(qos_util.mult_session_addr ()));
// Fill the ACE_QoS_Params to be passed to the <ACE_OS::join_leaf>
// through subscribe.
ACE_QoS_Params qos_params;
FillQoSParams (qos_params, 0, &ace_qos_receiver);
// Create a QoS Session Factory.
ACE_QoS_Session_Factory session_factory;
// Ask the factory to create a QoS session.
ACE_QoS_Session *qos_session =
session_factory.create_session ();
// Create a destination address for the QoS session. The same
// address should be used for the subscribe call later. A copy
// is made below only to distinguish the two usages of the dest
// address.
ACE_INET_Addr dest_addr (mult_addr);
// A QoS session is defined by the 3-tuple [DestAddr, DestPort,
// Protocol]. Initialize the QoS session.
if (qos_session->open (mult_addr,
IPPROTO_UDP) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
"Error in opening the QoS session\n"),
-1);
else
ACE_DEBUG ((LM_DEBUG,
"QoS session opened successfully\n"));
// The following call opens the Dgram_Mcast and calls the
// <ACE_OS::join_leaf> with the qos_params supplied here. Note
// the QoS session object is passed into this call. This
// subscribes the underlying socket to the passed in QoS
// session. For joining multiple multicast sessions, the
// following subscribe call should be made with different
// multicast addresses and a new QoS session object should be
// passed in for each such call. The QoS session objects can be
// created only through the session factory. Care should be
// taken that the mult_addr for the subscribe() call matches the
// dest_addr of the QoS session object. If this is not done, the
// subscribe call will fail. A more abstract version of
// subscribe will be added that constrains the various features
// of GQoS like different flags etc.
if (dgram_mcast_qos.subscribe (mult_addr,
qos_params,
1,
0,
AF_INET,
// ACE_FROM_PROTOCOL_INFO,
0,
0, // ACE_Protocol_Info,
0,
ACE_OVERLAPPED_SOCKET_FLAG
| ACE_FLAG_MULTIPOINT_C_LEAF
| ACE_FLAG_MULTIPOINT_D_LEAF,
qos_session) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
"Error in subscribe\n"),
-1);
else
ACE_DEBUG ((LM_DEBUG,
"Dgram_Mcast subscribe succeeds\n"));
int nIP_TTL = 25;
char achInBuf [BUFSIZ];
u_long dwBytes;
// Should this be abstracted into QoS objects ?? Doesnt seem to have
// to do anything directly with QoS.
if (ACE_OS::ioctl (dgram_mcast_qos.get_handle (), // Socket.
ACE_SIO_MULTICAST_SCOPE, // IO control code.
&nIP_TTL, // In buffer.
sizeof (nIP_TTL), // Length of in buffer.
achInBuf, // Out buffer.
BUFSIZ, // Length of Out buffer.
&dwBytes, // bytes returned.
0, // Overlapped.
0) == -1) // Func.
ACE_ERROR ((LM_ERROR,
"Error in Multicast scope ACE_OS::ioctl()\n"));
else
ACE_DEBUG ((LM_DEBUG,
"Setting TTL with Multicast scope ACE_OS::ioctl call succeeds\n"));
int bFlag = 0;
// Should this be abstracted into QoS objects ?? Doesnt seem to have
// to do anything directly with QoS.
if (ACE_OS::ioctl (dgram_mcast_qos.get_handle (), // Socket.
ACE_SIO_MULTIPOINT_LOOPBACK, // IO control code.
&bFlag, // In buffer.
sizeof (bFlag), // Length of in buffer.
achInBuf, // Out buffer.
BUFSIZ, // Length of Out buffer.
&dwBytes, // bytes returned.
0, // Overlapped.
0) == -1) // Func.
ACE_ERROR ((LM_ERROR,
"Error in Loopback ACE_OS::ioctl()\n"));
else
ACE_DEBUG ((LM_DEBUG,
"Disable Loopback with ACE_OS::ioctl call succeeds\n"));
// This is a receiver.
qos_session->flags (ACE_QoS_Session::ACE_QOS_RECEIVER);
ACE_QoS_Manager qos_manager = dgram_mcast_qos.qos_manager ();
// Set the QoS for the session. Replaces the ioctl () call that
// was being made previously.
if (qos_session->qos (&dgram_mcast_qos,
&qos_manager,
ace_qos_receiver) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
"Unable to set QoS\n"),
-1);
else
ACE_DEBUG ((LM_DEBUG,
"Setting QOS succeeds.\n"));
// Register a signal handler that helps to gracefully close the
// open QoS sessions.
QoS_Signal_Handler qos_signal_handler (qos_session);
// Register the usual SIGINT signal handler with the Reactor for
// the application to gracefully release the QoS session and
// shutdown.
if (ACE_Reactor::instance ()->register_handler
(SIGINT, &qos_signal_handler) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
"Error in registering the Signal Handler.\n"),
-1);
// Handler to process QoS and Data events for the reciever.
Receiver_QoS_Event_Handler qos_event_handler (dgram_mcast_qos,
qos_session);
// Decorate the above handler with QoS functionality.
ACE_QoS_Decorator qos_decorator (&qos_event_handler,
qos_session);
// Initialize the Decorator.
if (qos_decorator.init () != 0)
ACE_ERROR_RETURN ((LM_ERROR,
"QoS Decorator init () failed.\n"),
-1);
// Register the decorated Event Handler with the Reactor.
if (ACE_Reactor::instance ()->register_handler (&qos_decorator,
ACE_Event_Handler::QOS_MASK |
ACE_Event_Handler::READ_MASK) == -1)
ACE_ERROR_RETURN ((LM_ERROR,
"Error in registering the Decorator with the Reactor\n"),
-1);
// // Register the RAPI Event Handler with the Reactor. This
// // handles the QoS events.
// if (ACE_Reactor::instance ()->register_handler
// (&rapi_event_handler,
// ACE_Event_Handler::QOS_MASK | ACE_Event_Handler::READ_MASK) == -1)
// ACE_ERROR_RETURN ((LM_ERROR,
// "Error in registering the RAPI Event Handler\n"),
// -1);
// // The following event handler handles the data.
// ACE_QoS_Event_Handler data_event_handler (dgram_mcast_qos,
// qos_session);
// // Register the Data Event Handler with the Reactor.
// if (ACE_Reactor::instance ()->register_handler
// (&data_event_handler,ACE_Event_Handler::READ_MASK) == -1)
// ACE_ERROR_RETURN ((LM_ERROR,
// "Error in registering Data Event Handler\n"),
// -1);
// Start the event loop.
ACE_DEBUG ((LM_DEBUG,
"Running the Event Loop ...\n"));
ACE_Reactor::instance ()->run_event_loop ();
ACE_DEBUG ((LM_DEBUG,
"(%P|%t) shutting down server logging daemon\n"));
}
else
ACE_DEBUG ((LM_DEBUG,
"Specify a -m option for multicast application\n"));
return 0;
}
