int ACE_TMAIN (int argc, ACE_TCHAR *argv[])
{
try
{
// Initialize the EC Factory so we can customize the EC
TAO_EC_Default_Factory::init_svcs ();
// Initialize the ORB.
CORBA::ORB_var orb = CORBA::ORB_init(argc, argv);
const ACE_TCHAR* ecname = ACE_TEXT ("EventService");
const ACE_TCHAR* address = ACE_TEXT ("localhost");
const ACE_TCHAR* iorfile = 0;
u_short port = 12345;
u_short listenport = 12345;
int mcast = 1;
for (int i = 0; argv[i] != 0; i++) {
if (ACE_OS::strcmp(argv[i], ACE_TEXT("-ecname")) == 0) {
if (argv[i+1] != 0) {
i++;
ecname = argv[i];
} else {
std::cerr << "Missing Event channel name" << std::endl;
}
} else if (ACE_OS::strcmp(argv[i], ACE_TEXT("-address")) == 0) {
if (argv[i+1] != 0) {
i++;
address = argv[i];
} else {
std::cerr << "Missing address" << std::endl;
}
} else if (ACE_OS::strcmp(argv[i], ACE_TEXT("-port")) == 0) {
if (argv[i+1] != 0) {
i++;
port = ACE_OS::atoi(argv[i]);
} else {
std::cerr << "Missing port" << std::endl;
}
} else if (ACE_OS::strcmp(argv[i], ACE_TEXT("-listenport")) == 0) {
if (argv[i+1] != 0) {
i++;
listenport = ACE_OS::atoi(argv[i]);
} else {
std::cerr << "Missing port" << std::endl;
}
} else if (ACE_OS::strcmp(argv[i], ACE_TEXT("-iorfile")) == 0) {
if (argv[i+1] != 0) {
i++;
iorfile = argv[i];
}
} else if (ACE_OS::strcmp(argv[i], ACE_TEXT("-udp")) == 0) {
mcast = 0;
}
}
// Get the POA
CORBA::Object_var object = orb->resolve_initial_references ("RootPOA");
PortableServer::POA_var poa = PortableServer::POA::_narrow (object.in ());
PortableServer::POAManager_var poa_manager = poa->the_POAManager ();
poa_manager->activate ();
// Create a local event channel and register it
TAO_EC_Event_Channel_Attributes attributes (poa.in (), poa.in ());
PortableServer::Servant_var<TAO_EC_Event_Channel> ec_impl =
new TAO_EC_Event_Channel(attributes);
ec_impl->activate ();
PortableServer::ObjectId_var oid = poa->activate_object(ec_impl.in());
CORBA::Object_var ec_obj = poa->id_to_reference(oid.in());
RtecEventChannelAdmin::EventChannel_var ec =
RtecEventChannelAdmin::EventChannel::_narrow(ec_obj.in());
// Find the Naming Service.
CORBA::Object_var obj = orb->resolve_initial_references("NameService");
CosNaming::NamingContextExt_var root_context = CosNaming::NamingContextExt::_narrow(obj.in());
// Bind the Event Channel using Naming Services
CosNaming::Name_var name = root_context->to_name (ACE_TEXT_ALWAYS_CHAR (ecname));
root_context->rebind(name.in(), ec.in());
// Get a proxy push consumer from the EventChannel.
RtecEventChannelAdmin::SupplierAdmin_var admin = ec->for_suppliers();
RtecEventChannelAdmin::ProxyPushConsumer_var consumer =
admin->obtain_push_consumer();
// Instantiate an EchoEventSupplier_i servant.
PortableServer::Servant_var<EchoEventSupplier_i> servant =
new EchoEventSupplier_i(orb.in());
// Register it with the RootPOA.
oid = poa->activate_object(servant.in());
CORBA::Object_var supplier_obj = poa->id_to_reference(oid.in());
RtecEventComm::PushSupplier_var supplier =
RtecEventComm::PushSupplier::_narrow(supplier_obj.in());
// Connect to the EC.
ACE_SupplierQOS_Factory qos;
qos.insert (MY_SOURCE_ID, MY_EVENT_TYPE, 0, 1);
consumer->connect_push_supplier (supplier.in (), qos.get_SupplierQOS ());
// Initialize the address server with the desired address.
// This will be used by the sender object and the multicast
// receiver.
ACE_INET_Addr send_addr (port, address);
PortableServer::Servant_var<SimpleAddressServer> addr_srv_impl =
new SimpleAddressServer(send_addr);
PortableServer::ObjectId_var addr_srv_oid =
poa->activate_object(addr_srv_impl.in());
CORBA::Object_var addr_srv_obj = poa->id_to_reference(addr_srv_oid.in());
RtecUDPAdmin::AddrServer_var addr_srv =
RtecUDPAdmin::AddrServer::_narrow(addr_srv_obj.in());
// Create and initialize the sender object
PortableServer::Servant_var<TAO_ECG_UDP_Sender> sender =
TAO_ECG_UDP_Sender::create();
TAO_ECG_UDP_Out_Endpoint endpoint;
if (endpoint.dgram ().open (ACE_Addr::sap_any) == -1) {
std::cerr << "Cannot open send endpoint" << std::endl;
return 1;
}
// TAO_ECG_UDP_Sender::init() takes a TAO_ECG_Refcounted_Endpoint.
// If we don't clone our endpoint and pass &endpoint, the sender will
// attempt to delete endpoint during shutdown.
TAO_ECG_Refcounted_Endpoint clone (new TAO_ECG_UDP_Out_Endpoint (endpoint));
sender->init (ec.in (), addr_srv.in (), clone);
// Setup the subscription and connect to the EC
ACE_ConsumerQOS_Factory cons_qos_fact;
cons_qos_fact.start_disjunction_group ();
cons_qos_fact.insert (ACE_ES_EVENT_SOURCE_ANY, ACE_ES_EVENT_ANY, 0);
RtecEventChannelAdmin::ConsumerQOS sub = cons_qos_fact.get_ConsumerQOS ();
sender->connect (sub);
// Create and initialize the receiver
PortableServer::Servant_var<TAO_ECG_UDP_Receiver> receiver =
TAO_ECG_UDP_Receiver::create();
// TAO_ECG_UDP_Receiver::init() takes a TAO_ECG_Refcounted_Endpoint.
// If we don't clone our endpoint and pass &endpoint, the receiver will
// attempt to delete endpoint during shutdown.
TAO_ECG_Refcounted_Endpoint clone2 (new TAO_ECG_UDP_Out_Endpoint (endpoint));
receiver->init (ec.in (), clone2, addr_srv.in ());
// Setup the registration and connect to the event channel
ACE_SupplierQOS_Factory supp_qos_fact;
supp_qos_fact.insert (MY_SOURCE_ID, MY_EVENT_TYPE, 0, 1);
RtecEventChannelAdmin::SupplierQOS pub = supp_qos_fact.get_SupplierQOS ();
receiver->connect (pub);
// Create the appropriate event handler and register it with the reactor
auto_ptr<ACE_Event_Handler> eh;
if (mcast) {
auto_ptr<TAO_ECG_Mcast_EH> mcast_eh(new TAO_ECG_Mcast_EH (receiver.in()));
mcast_eh->reactor (orb->orb_core ()->reactor ());
mcast_eh->open (ec.in());
ACE_auto_ptr_reset(eh,mcast_eh.release());
//eh.reset(mcast_eh.release());
} else {
auto_ptr<TAO_ECG_UDP_EH> udp_eh (new TAO_ECG_UDP_EH (receiver.in()));
udp_eh->reactor (orb->orb_core ()->reactor ());
ACE_INET_Addr local_addr (listenport);
if (udp_eh->open (local_addr) == -1) {
std::cerr << "Cannot open EH" << std::endl;
}
ACE_auto_ptr_reset(eh,udp_eh.release());
//eh.reset(udp_eh.release());
}
// Create an event (just a string in this case).
const CORBA::String_var eventData = CORBA::string_dup (ACE_TEXT_ALWAYS_CHAR (ecname));
// Create an event set for one event
RtecEventComm::EventSet event (1);
event.length (1);
// Initialize event header.
event[0].header.source = MY_SOURCE_ID;
event[0].header.ttl = 1;
event[0].header.type = MY_EVENT_TYPE;
// Initialize data fields in event.
event[0].data.any_value <<= eventData;
if (iorfile != 0) {
CORBA::String_var str = orb->object_to_string( ec.in() );
std::ofstream iorFile( ACE_TEXT_ALWAYS_CHAR(iorfile) );
iorFile << str.in() << std::endl;
iorFile.close();
}
std::cout << "Starting main loop" << std::endl;
const int EVENT_DELAY_MS = 10;
while (1) {
consumer->push (event);
ACE_Time_Value tv(0, 1000 * EVENT_DELAY_MS);
orb->run(tv);
}
orb->destroy();
return 0;
}
catch(const CORBA::Exception& exc)
{
std::cerr << "Caught CORBA::Exception" << std::endl << exc << std::endl;
}
return 1;
}
int ACE_TMAIN (int argc, ACE_TCHAR *argv[])
{
try
{
// Initialize the EC Factory so we can customize the EC
TAO_EC_Default_Factory::init_svcs ();
// Initialize the ORB.
CORBA::ORB_var orb = CORBA::ORB_init (argc, argv);
const ACE_TCHAR *ecname = ACE_TEXT ("EventService");
const ACE_TCHAR *address = ACE_TEXT ("localhost");
const ACE_TCHAR *iorfile = 0;
u_short port = 12345;
u_short listenport = 12345;
int mcast = 1;
for (int i = 0; argv[i] != 0; i++)
{
if (ACE_OS::strcasecmp(argv[i], ACE_TEXT ("-ecname")) == 0)
{
if (argv[i+1] != 0)
ecname = argv[++i];
else
ACE_ERROR_RETURN ((LM_ERROR, "Missing Event channel name\n"),0);
}
else if (ACE_OS::strcasecmp(argv[i], ACE_TEXT ("-address")) == 0)
{
if (argv[i+1] != 0)
address = argv[++i];
else
ACE_ERROR_RETURN ((LM_ERROR, "Missing address\n"),0);
}
else if (ACE_OS::strcasecmp(argv[i], ACE_TEXT ("-port")) == 0)
{
if (argv[i+1] != 0)
port = ACE_OS::atoi(argv[++i]);
else
ACE_ERROR_RETURN ((LM_ERROR, "Missing port\n"),0);
}
else if (ACE_OS::strcasecmp(argv[i], ACE_TEXT ("-listenport")) == 0)
{
if (argv[i+1] != 0)
listenport = ACE_OS::atoi(argv[++i]);
else
ACE_ERROR_RETURN ((LM_ERROR, "Missing port\n"), 0);
}
else if (ACE_OS::strcasecmp(argv[i], ACE_TEXT ("-iorfile")) == 0)
{
if (argv[i+1] != 0)
iorfile = argv[++i];
else
ACE_ERROR_RETURN ((LM_ERROR, "Missing ior file\n"), 0);
}
else if (ACE_OS::strcasecmp(argv[i], ACE_TEXT ("-udp")) == 0)
mcast = 0;
}
// Get the POA
CORBA::Object_var tmpobj = orb->resolve_initial_references ("RootPOA");
PortableServer::POA_var poa = PortableServer::POA::_narrow (tmpobj.in ());
PortableServer::POAManager_var poa_manager = poa->the_POAManager ();
poa_manager->activate ();
// Create a local event channel and register it
TAO_EC_Event_Channel_Attributes attributes (poa.in (), poa.in ());
TAO_EC_Event_Channel ec_impl (attributes);
ec_impl.activate ();
PortableServer::ObjectId_var oid = poa->activate_object(&ec_impl);
tmpobj = poa->id_to_reference(oid.in());
RtecEventChannelAdmin::EventChannel_var ec =
RtecEventChannelAdmin::EventChannel::_narrow(tmpobj.in());
// Find the Naming Service.
tmpobj = orb->resolve_initial_references("NameService");
CosNaming::NamingContextExt_var root_context =
CosNaming::NamingContextExt::_narrow(tmpobj.in());
// Bind the Event Channel using Naming Services
CosNaming::Name_var name =
root_context->to_name (ACE_TEXT_ALWAYS_CHAR (ecname));
root_context->rebind(name.in(), ec.in());
// Get a proxy push consumer from the EventChannel.
RtecEventChannelAdmin::SupplierAdmin_var admin = ec->for_suppliers();
RtecEventChannelAdmin::ProxyPushConsumer_var consumer =
admin->obtain_push_consumer();
// Instantiate an EchoEventSupplier_i servant.
EchoEventSupplier_i servant(orb.in());
// Register it with the RootPOA.
oid = poa->activate_object(&servant);
tmpobj = poa->id_to_reference(oid.in());
RtecEventComm::PushSupplier_var supplier =
RtecEventComm::PushSupplier::_narrow(tmpobj.in());
// Connect to the EC.
ACE_SupplierQOS_Factory qos;
qos.insert (MY_SOURCE_ID, MY_EVENT_TYPE, 0, 1);
consumer->connect_push_supplier (supplier.in (), qos.get_SupplierQOS ());
// Initialize the address server with the desired address. This will
// be used by the sender object and the multicast receiver only if
// one is not otherwise available via the naming service.
ACE_INET_Addr send_addr (port, address);
SimpleAddressServer addr_srv_impl (send_addr);
// Create an instance of the addr server for local use
PortableServer::ObjectId_var addr_srv_oid =
poa->activate_object(&addr_srv_impl);
tmpobj =
poa->id_to_reference(addr_srv_oid.in());
RtecUDPAdmin::AddrServer_var addr_srv =
RtecUDPAdmin::AddrServer::_narrow(tmpobj.in());
// Create and initialize the sender object
PortableServer::Servant_var<TAO_ECG_UDP_Sender> sender =
TAO_ECG_UDP_Sender::create();
TAO_ECG_UDP_Out_Endpoint endpoint;
// need to be explicit about the address type when built with
// IPv6 support, otherwise SOCK_DGram::open defaults to ipv6 when
// given a sap_any address. This causes trouble on at least solaris
// and windows, or at most on not-linux.
if (endpoint.dgram ().open (ACE_Addr::sap_any,
send_addr.get_type()) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"Cannot open send endpoint\n"),
1);
}
// TAO_ECG_UDP_Sender::init() takes a TAO_ECG_Refcounted_Endpoint.
// If we don't clone our endpoint and pass &endpoint, the sender will
// attempt to delete endpoint during shutdown.
TAO_ECG_Refcounted_Endpoint clone (new TAO_ECG_UDP_Out_Endpoint (endpoint));
sender->init (ec.in (), addr_srv.in (), clone);
// Setup the subscription and connect to the EC
ACE_ConsumerQOS_Factory cons_qos_fact;
cons_qos_fact.start_disjunction_group ();
cons_qos_fact.insert (ACE_ES_EVENT_SOURCE_ANY, ACE_ES_EVENT_ANY, 0);
RtecEventChannelAdmin::ConsumerQOS sub = cons_qos_fact.get_ConsumerQOS ();
sender->connect (sub);
// Create and initialize the receiver
PortableServer::Servant_var<TAO_ECG_UDP_Receiver> receiver =
TAO_ECG_UDP_Receiver::create();
// TAO_ECG_UDP_Receiver::init() takes a TAO_ECG_Refcounted_Endpoint.
// If we don't clone our endpoint and pass &endpoint, the receiver will
// attempt to delete endpoint during shutdown.
TAO_ECG_Refcounted_Endpoint clone2 (new TAO_ECG_UDP_Out_Endpoint (endpoint));
receiver->init (ec.in (), clone2, addr_srv.in ());
// Setup the registration and connect to the event channel
ACE_SupplierQOS_Factory supp_qos_fact;
supp_qos_fact.insert (MY_SOURCE_ID, MY_EVENT_TYPE, 0, 1);
RtecEventChannelAdmin::SupplierQOS pub = supp_qos_fact.get_SupplierQOS ();
receiver->connect (pub);
// Create the appropriate event handler and register it with the reactor
auto_ptr<ACE_Event_Handler> eh;
if (mcast) {
auto_ptr<TAO_ECG_Mcast_EH> mcast_eh(new TAO_ECG_Mcast_EH (receiver.in()));
mcast_eh->reactor (orb->orb_core ()->reactor ());
mcast_eh->open (ec.in());
ACE_auto_ptr_reset(eh,mcast_eh.release());
//eh.reset(mcast_eh.release());
} else {
auto_ptr<TAO_ECG_UDP_EH> udp_eh (new TAO_ECG_UDP_EH (receiver.in()));
udp_eh->reactor (orb->orb_core ()->reactor ());
ACE_INET_Addr local_addr (listenport);
if (udp_eh->open (local_addr) == -1)
ACE_ERROR ((LM_ERROR,"Cannot open EH\n"));
ACE_auto_ptr_reset(eh,udp_eh.release());
//eh.reset(udp_eh.release());
}
// Create an event (just a string in this case).
// Create an event set for one event
RtecEventComm::EventSet event (1);
event.length (1);
// Initialize event header.
event[0].header.source = MY_SOURCE_ID;
event[0].header.ttl = 1;
event[0].header.type = MY_EVENT_TYPE;
#if !defined (TAO_LACKS_EVENT_CHANNEL_ANY)
// Initialize data fields in event.
const CORBA::String_var eventData =
CORBA::string_dup (ACE_TEXT_ALWAYS_CHAR (ecname));
event[0].data.any_value <<= eventData;
#else
// Use the octet sequence payload instead
char *tmpstr = const_cast<char *>(ACE_TEXT_ALWAYS_CHAR (ecname));
size_t len = ACE_OS::strlen(tmpstr) +1;
event[0].data.payload.replace (
len,
len,
reinterpret_cast<CORBA::Octet *> (tmpstr));
#endif /* !TAO_LACKS_EVENT_CHANNEL_ANY */
if (iorfile != 0) {
CORBA::String_var str = orb->object_to_string( ec.in() );
std::ofstream iorFile( ACE_TEXT_ALWAYS_CHAR(iorfile) );
iorFile << str.in() << std::endl;
iorFile.close();
}
ACE_DEBUG ((LM_DEBUG,
"Starting main loop\n"));
const int EVENT_DELAY_MS = 1000;
while (1) {
consumer->push (event);
ACE_Time_Value tv(0, 1000 * EVENT_DELAY_MS);
orb->run(tv);
}
orb->destroy();
return 0;
}
catch (const CORBA::Exception& exc)
{
ACE_ERROR ((LM_ERROR,
"Caught CORBA::Exception\n%C (%C)\n",
exc._name (),
exc._rep_id () ));
}
return 1;
}
int
ACE_TMAIN(int argc, ACE_TCHAR *argv[])
{
// Register the default factory in the Service Configurator.
// If your platform supports static constructors then you can
// simply using the ACE_STATIC_SVC_DEFINE() macro, unfortunately TAO
// must run on platforms where static constructors do not work well,
// so we have to explicitly invoke this function.
TAO_EC_Default_Factory::init_svcs ();
// The exception macros are described in $ACE_ROOT/docs/exceptions.html
// and defined in $ACE_ROOT/ace/CORBA_macros.h.
// If your platform supports native exceptions, and TAO was compiled
// with native exception support then you can simply use try/catch
// and avoid the argument.
// Unfortunately many embedded systems cannot use exceptions due to
// the space and time overhead.
//
try
{
// **************** HERE STARTS THE ORB SETUP
// Create the ORB, pass the argv list for parsing.
CORBA::ORB_var orb =
CORBA::ORB_init (argc, argv);
// Parse the arguments, you usually want to do this after
// invoking ORB_init() because ORB_init() will remove all the
// -ORB options from the command line.
if (parse_args (argc, argv) == -1)
{
ACE_ERROR ((LM_ERROR,
"Usage: Service [-m udp_mcast_addr]\n"));
return 1;
}
if (valuetype)
{
Hello::ValueTypeData_init *vb_factory = 0;
ACE_NEW_RETURN (vb_factory,
Hello::ValueTypeData_init,
1); // supplied by mapping
orb->register_value_factory (vb_factory->tao_repository_id (),
vb_factory);
vb_factory->_remove_ref (); // release ownership
}
// This is the standard code to get access to the POA and
// activate it.
// The POA starts in the holding state, if it is not activated
// it will not process any requests.
CORBA::Object_var object =
orb->resolve_initial_references ("RootPOA");
PortableServer::POA_var poa =
PortableServer::POA::_narrow (object.in ());
PortableServer::POAManager_var poa_manager =
poa->the_POAManager ();
poa_manager->activate ();
// **************** THAT COMPLETS THE ORB SETUP
// **************** HERE START THE LOCAL EVENT CHANNEL SETUP
// This structure is used to define the startup time event
// channel configuration.
// This structure is described in
//
// $TAO_ROOT/docs/ec_options.html
//
TAO_EC_Event_Channel_Attributes attributes (poa.in (),
poa.in ());
// Create the Event Channel implementation class
TAO_EC_Event_Channel ec_impl (attributes);
// Activate the Event Channel, depending on the configuration
// that may involve creating some threads.
// But it should always be invoked because several internal data
// structures are initialized at that point.
ec_impl.activate ();
// The event channel is activated as any other CORBA servant.
// In this case we use the simple implicit activation with the
// RootPOA
RtecEventChannelAdmin::EventChannel_var event_channel =
ec_impl._this ();
// **************** THAT COMPLETES THE LOCAL EVENT CHANNEL SETUP
// **************** HERE STARTS THE FEDERATION SETUP
// The next step is to setup the multicast gateways.
// There are two gateways involved, one sends the locally
// generated events to the federated peers, the second gateway
// receives multicast traffic and turns it into local events.
// The sender requires a helper object to select what
// multicast group will carry what traffic, this is the
// so-called 'Address Server'.
// The intention is that advanced applications can use different
// multicast groups for different events, this can exploit
// network interfaces that filter unwanted multicast traffic.
// The helper object is accessed through an IDL interface, so it
// can reside remotely.
// In this example, and in many application, using a fixed
// multicast group is enough, and a local address server is the
// right approach.
// First we convert the string into an INET address, then we
// convert that into the right IDL structure:
ACE_INET_Addr udp_addr (udp_mcast_address);
ACE_DEBUG ((LM_DEBUG,
"udp mcast address is: %s\n",
udp_mcast_address));
// Now we create and activate the servant
AddrServer as_impl (udp_addr);
RtecUDPAdmin::AddrServer_var address_server =
as_impl._this ();
TAO_ECG_Refcounted_Endpoint endpoint(new TAO_ECG_UDP_Out_Endpoint);
// Now we connect the sender as a consumer of events, it will
// receive any event from any source and send it to the "right"
// multicast group, as defined by the address server set above:
RtecEventChannelAdmin::ConsumerQOS sub;
sub.is_gateway = 1;
sub.dependencies.length (1);
sub.dependencies[0].event.header.type =
ACE_ES_EVENT_ANY; // first free event type
sub.dependencies[0].event.header.source =
ACE_ES_EVENT_SOURCE_ANY; // Any source is OK
// To receive events we need to setup an event handler:
PortableServer::Servant_var<TAO_ECG_UDP_Receiver> receiver =
TAO_ECG_UDP_Receiver::create();
TAO_ECG_Mcast_EH mcast_eh (&(*receiver));
// The event handler uses the ORB reactor to wait for multicast
// traffic:
mcast_eh.reactor (orb->orb_core ()->reactor ());
// The multicast Event Handler needs to know to what multicast
// groups it should listen to. To do so it becomes an observer
// with the event channel, to determine the list of events
// required by all the local consumer.
// Then it register for the multicast groups that carry those
// events:
mcast_eh.open (event_channel.in ());
// Again the receiver connects to the event channel as a
// supplier of events, using the Observer features to detect
// local consumers and their interests:
receiver->init (event_channel.in (),
endpoint,
address_server.in ());
// The Receiver is also a supplier of events. The exact type of
// events is only known to the application, because it depends
// on the traffic carried by all the multicast groups that the
// different event handlers subscribe to.
// In this example we choose to simply describe our publications
// using wilcards, any event from any source. More advanced
// application could use the Observer features in the event
// channel to update this information (and reduce the number of
// multicast groups that each receive subscribes to).
// In a future version the event channel could perform some of
// those tasks automatically
RtecEventChannelAdmin::SupplierQOS pub;
pub.publications.length (1);
pub.publications[0].event.header.type = ACE_ES_EVENT_ANY;
pub.publications[0].event.header.source = ACE_ES_EVENT_SOURCE_ANY;
pub.is_gateway = 1;
receiver->connect (pub);
// **************** THAT COMPLETES THE FEDERATION SETUP
// **************** HERE STARTS THE CLIENT SETUP
// First let us create a consumer and connect it to the event
// channel
Consumer consumer (valuetype);
RtecEventChannelAdmin::ConsumerAdmin_var consumer_admin =
event_channel->for_consumers ();
consumer.connect (consumer_admin.in ());
// **************** THAT COMPLETES THE CLIENT SETUP
// **************** HERE STARTS THE EVENT LOOP
// Wait for events, including incoming multicast data.
// We could also use orb->run(), but that will not let us
// terminate the application in a nice way.
for (int i = 0; i != 100; ++i)
{
CORBA::Boolean there_is_work =
orb->work_pending ();
if (there_is_work)
{
// We use a TAO extension. The CORBA mechanism does not
// provide any decent way to control the duration of
// perform_work() or work_pending(), so just calling
// them results in a spin loop.
ACE_Time_Value tv (0, 50000);
orb->perform_work (tv);
}
ACE_Time_Value tv (0, 100000);
ACE_OS::sleep (tv);
if (consumer.event_count () == 25)
{
break;
}
}
// **************** THAT COMPLETES THE EVENT LOOP
// **************** HERE STARTS THE CLEANUP CODE
consumer.disconnect ();
// Now let us close the Receiver
receiver->shutdown ();
int const r = mcast_eh.shutdown ();
if (r == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"Closing MCast event handler\n"), 1);
}
// The event channel must be destroyed, so it can release its
// resources, and inform all the clients that are still
// connected that it is going away.
event_channel->destroy ();
// Deactivating the event channel implementation is not strictly
// required, the POA will do it for us, but it is good manners:
{
// Using _this() activates with the default POA, we must gain
// access to that POA to deactivate the object.
// Notice that we 'know' that the default POA for this servant
// is the root POA, but the code is more robust if we don't
// rely on that.
PortableServer::POA_var poa =
ec_impl._default_POA ();
// Get the Object Id used for the servant..
PortableServer::ObjectId_var oid =
poa->servant_to_id (&ec_impl);
// Deactivate the object
poa->deactivate_object (oid.in ());
}
// Now we can destroy the POA, the flags mean that we want to
// wait until the POA is really destroyed
poa->destroy (1, 1);
// Finally destroy the ORB
orb->destroy ();
// **************** THAT COMPLETES THE CLEANUP CODE
ACE_DEBUG ((LM_DEBUG,
"UDP receiver ready\n"));
}
catch (const CORBA::Exception& ex)
{
ex._tao_print_exception ("Service");
return 1;
}
return 0;
}