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// $Id$
#include "Consumer.h"
#include "orbsvcs/RtecEventChannelAdminC.h"
#include "orbsvcs/Event_Service_Constants.h"
ACE_RCSID(EC_Examples, Consumer, "$Id$")
extern "C"
int
createConsumer (int argc, char* argv[])
{
Consumer consumer;
return consumer.run (argc, argv);
}
Consumer::Consumer (void)
: event_count_ (0), shutdown_ (0)
{
}
int
Consumer::run (int argc, char* argv[])
{
// int register_with_object_manager = 0;
// if (TAO_Singleton_Manager::instance ()->init (
// register_with_object_manager) == -1)
// ACE_ERROR_RETURN ((LM_ERROR,
// "Consumer::init -- ORB pre-initialization "
// "failed.\n"),
// -1); // No exceptions available yet, so return
// // an error status.
ACE_DECLARE_NEW_CORBA_ENV;
ACE_TRY
{
// Prepend a "dummy" program name argument to the Service
// Configurator argument vector.
int new_argc = argc + 1;
CORBA::StringSeq new_argv (new_argc);
new_argv.length (new_argc);
// Prevent the ORB from opening the Service Configurator file
// again since the Service Configurator file is already in the
// process of being opened.
new_argv[0] = CORBA::string_dup ("dummy");
// Copy the remaining arguments into the new argument vector.
for (int i = new_argc - argc, j = 0;
j < argc;
++i, ++j)
new_argv[i] = CORBA::string_dup (argv[j]);
// Initialize the ORB.
CORBA::ORB_var orb = CORBA::ORB_init (new_argc,
new_argv.get_buffer (),
"Consumer"
ACE_ENV_ARG_PARAMETER);
ACE_TRY_CHECK;
// Do *NOT* make a copy because we don't want the ORB to outlive
// the run() method.
this->orb_ = orb.in ();
CORBA::Object_var object =
orb->resolve_initial_references ("RootPOA" ACE_ENV_ARG_PARAMETER);
ACE_TRY_CHECK;
PortableServer::POA_var poa =
PortableServer::POA::_narrow (object.in () ACE_ENV_ARG_PARAMETER);
ACE_TRY_CHECK;
PortableServer::POAManager_var poa_manager =
poa->the_POAManager (ACE_ENV_SINGLE_ARG_PARAMETER);
ACE_TRY_CHECK;
poa_manager->activate (ACE_ENV_SINGLE_ARG_PARAMETER);
ACE_TRY_CHECK;
TAO_Naming_Client naming_client;
// Initialization of the naming service.
if (naming_client.init (orb.in ()) != 0)
ACE_ERROR_RETURN ((LM_ERROR,
"(%P|%t) Unable to initialize "
"the TAO_Naming_Client. \n"),
-1);
CosNaming::Name ec_name (1);
ec_name.length (1);
ec_name[0].id = CORBA::string_dup ("EventChannel");
CORBA::Object_var ec_obj =
naming_client->resolve (ec_name
ACE_ENV_ARG_PARAMETER);
ACE_TRY_CHECK;
RtecEventChannelAdmin::EventChannel_var event_channel =
RtecEventChannelAdmin::EventChannel::_narrow (ec_obj.in ()
ACE_ENV_ARG_PARAMETER);
ACE_TRY_CHECK;
// The canonical protocol to connect to the EC
RtecEventChannelAdmin::ConsumerAdmin_var consumer_admin =
event_channel->for_consumers (ACE_ENV_SINGLE_ARG_PARAMETER);
ACE_TRY_CHECK;
RtecEventChannelAdmin::ProxyPushSupplier_var supplier =
consumer_admin->obtain_push_supplier (ACE_ENV_SINGLE_ARG_PARAMETER);
ACE_TRY_CHECK;
RtecEventComm::PushConsumer_var consumer =
this->_this (ACE_ENV_SINGLE_ARG_PARAMETER);
ACE_TRY_CHECK;
// Simple subscription, but usually the helper classes in
// $TAO_ROOT/orbsvcs/Event_Utils.h are a better way to do this.
RtecEventChannelAdmin::ConsumerQOS qos;
qos.dependencies.length (2);
RtecEventComm::EventHeader& h0 =
qos.dependencies[0].event.header;
h0.type = ACE_ES_DISJUNCTION_DESIGNATOR;
h0.source = ACE_ES_EVENT_SOURCE_ANY;
RtecEventComm::EventHeader& h1 =
qos.dependencies[1].event.header;
h1.type = ACE_ES_EVENT_UNDEFINED; // first free event type
h1.source = ACE_ES_EVENT_SOURCE_ANY;
supplier->connect_push_consumer (consumer.in (), qos
ACE_ENV_ARG_PARAMETER);
ACE_TRY_CHECK;
// Wait for events, using work_pending()/perform_work() may help
// or using another thread, this example is too simple for that.
orb->run();
}
ACE_CATCHANY
{
ACE_PRINT_EXCEPTION (ACE_ANY_EXCEPTION, "Consumer::run");
return 1;
}
ACE_ENDTRY;
// if (TAO_Singleton_Manager::instance ()->fini () == -1)
// ACE_ERROR_RETURN ((LM_ERROR,
// "Consumer::fini -- ORB pre-termination failed."),
// -1);
ACE_DEBUG ((LM_DEBUG, "Consumer exiting...\n"));
return 0;
}
void
Consumer::push (const RtecEventComm::EventSet& events
ACE_ENV_ARG_DECL_NOT_USED)
ACE_THROW_SPEC ((CORBA::SystemException))
{
if (events.length () == 0)
{
ACE_DEBUG ((LM_DEBUG,
"Consumer (%P|%t) no events\n"));
return;
}
this->event_count_ += events.length ();
if (this->event_count_ % 100 == 0)
{
ACE_DEBUG ((LM_DEBUG,
"Consumer (%P|%t): %d events received\n",
this->event_count_));
}
}
void
Consumer::disconnect_push_consumer (ACE_ENV_SINGLE_ARG_DECL)
ACE_THROW_SPEC ((CORBA::SystemException))
{
this->shutdown_ = 1;
this->orb_->destroy (ACE_ENV_ARG_PARAMETER);
}
// ****************************************************************
#if defined (ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION)
#elif defined(ACE_HAS_TEMPLATE_INSTANTIATION_PRAGMA)
#endif /* ACE_HAS_EXPLICIT_TEMPLATE_INSTANTIATION */
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