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// $Id$
#include "tao/PortableServer/Upcall_Wrapper.h"
#include "tao/PortableServer/Upcall_Command.h"
#include "tao/PortableServer/Collocated_Arguments_Converter.h"
#include "tao/SystemException.h"
#if TAO_HAS_INTERCEPTORS == 1
# include "tao/ServerRequestInterceptor_Adapter.h"
# include "tao/ORB_Core.h"
#endif /* TAO_HAS_INTERCEPTORS == 1 */
#include "tao/PortableInterceptorC.h"
#include "tao/PortableInterceptor.h"
#include "tao/TAO_Server_Request.h"
#include "tao/CDR.h"
#include "tao/Argument.h"
#include "tao/operation_details.h"
#include "ace/Log_Msg.h"
ACE_RCSID (PortableServer,
Upcall_Wrapper,
"$Id$")
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
void
TAO::Upcall_Wrapper::upcall (TAO_ServerRequest & server_request,
TAO::Argument * const args[],
size_t nargs,
TAO::Upcall_Command & command
#if TAO_HAS_INTERCEPTORS == 1
, void * servant_upcall
, CORBA::TypeCode_ptr const * exceptions
, CORBA::ULong nexceptions
#endif /* TAO_HAS_INTERCEPTORS == 1 */
)
{
if (server_request.collocated ()
&& server_request.operation_details ()->cac () != 0)
{
server_request.operation_details ()->cac ()->convert_request (
server_request, args, nargs);
}
if (server_request.incoming ())
{
this->pre_upcall (*server_request.incoming (), args, nargs);
}
#if TAO_HAS_INTERCEPTORS == 1
// Make sure that, for the collocated case, we use the client-side
// arguments. For the non-collocated case, we will use the server-side
// arguments since they got set up in our pre_upcall() method. Note that
// our pre_upcall() method doesn't get invoked in the collocated case,
// and is the reason why we need to provide the client-side args instead
// of the (never set or initialized) server-side args.
//
// Before the following logic was added, the
// $TAO_ROOT/tests/Portable_Interceptors/Collocated/run_test.pl
// showed that the server-side request interceptor was getting bogus
// values when it took a look at the request arguments. Some
// additional testing revealed that this only occurred in the
// collocated request case.
// By default, we assume that we will use the server-side args.
TAO::Argument * const * the_args = args;
size_t the_nargs = nargs;
if (server_request.collocated())
{
// It is a collocated request so we need to use the client-side
// args instead.
the_args = server_request.operation_details()->args();
the_nargs = server_request.operation_details()->args_num();
}
TAO::ServerRequestInterceptor_Adapter *interceptor_adapter =
server_request.orb_core ()->serverrequestinterceptor_adapter ();
#endif /* TAO_HAS_INTERCEPTORS */
try
{
{
#if TAO_HAS_INTERCEPTORS == 1
if (interceptor_adapter != 0)
{
// Invoke intermediate server side interception points.
interceptor_adapter->receive_request (server_request,
the_args,
the_nargs,
servant_upcall,
exceptions,
nexceptions);
}
// Don't bother performing the upcall if an interceptor caused a
// location forward.
CORBA::Object_var forward_to = server_request.forward_location ();
if (!server_request.is_forwarded ())
{
if (interceptor_adapter != 0)
{
interceptor_adapter->execute_command (server_request, command);
}
else
#endif /* TAO_HAS_INTERCEPTORS */
{
// The actual upcall.
command.execute ();
}
#if TAO_HAS_INTERCEPTORS == 1
}
#endif /* TAO_HAS_INTERCEPTORS */
}
#if TAO_HAS_INTERCEPTORS == 1
if (interceptor_adapter == 0)
{
server_request.pi_reply_status (PortableInterceptor::SUCCESSFUL);
}
else
{
// Do not execute the send_reply() interception point if an
// interceptor caused a location forward. The send_other()
// interception point should already have been executed by the
// ServerRequestInterceptor_Adapter object.
//
// It should actually be safe to call this interception point,
// regardless, since the interceptor flow stack should have been
// emptied by the send_other() interception point. Note that
// we'd still need to avoid resetting the reply status to
// SUCCESSFUL, however.
CORBA::Object_var forward_to_after = server_request.forward_location ();
if (!server_request.is_forwarded ())
{
// No location forward by interceptors and successful upcall.
server_request.pi_reply_status (PortableInterceptor::SUCCESSFUL);
interceptor_adapter->send_reply (server_request,
the_args,
the_nargs,
servant_upcall,
exceptions,
nexceptions);
}
}
#endif /* TAO_HAS_INTERCEPTORS */
}
catch ( ::CORBA::Exception& ex)
{
// Just assume the current exception is a system exception, the
// status can only change when the interceptor changes this
// and this is only done when the sri_adapter is available. If we
// don't have an sri_adapter we just rethrow the exception
PortableInterceptor::ReplyStatus status =
PortableInterceptor::SYSTEM_EXCEPTION;
#if TAO_HAS_INTERCEPTORS == 1
server_request.caught_exception (&ex);
if (interceptor_adapter != 0)
{
interceptor_adapter->send_exception (server_request,
the_args,
the_nargs,
servant_upcall,
exceptions,
nexceptions);
status = server_request.pi_reply_status ();
}
#endif /* TAO_HAS_INTERCEPTORS */
if (status == PortableInterceptor::SYSTEM_EXCEPTION
|| status == PortableInterceptor::USER_EXCEPTION)
{
if (server_request.collocated ()
&& server_request.operation_details ()->cac () != 0)
{
// If we have a cac it will handle the exception and no
// need to do any further processing
server_request.operation_details ()->cac ()->handle_corba_exception (
server_request, &ex);
return;
}
else
{
throw;
}
}
}
if (server_request.response_expected ()
&& !server_request.sync_with_server ())
{
server_request.init_reply ();
}
#if TAO_HAS_INTERCEPTORS == 1
// Don't bother marshaling inout/out/return values if an interceptor
// caused a location forward.
if (!server_request.is_forwarded ())
#endif /* TAO_HAS_INTERCEPTORS == 1 */
{
if (server_request.outgoing ())
{
this->post_upcall (server_request, args, nargs);
}
}
if (server_request.collocated ()
&& server_request.operation_details ()->cac () != 0)
{
server_request.operation_details ()->cac ()->convert_reply (
server_request, args, nargs);
}
}
void
TAO::Upcall_Wrapper::pre_upcall (TAO_InputCDR & cdr,
TAO::Argument * const * args,
size_t nargs)
{
// Demarshal the operation "in" and "inout" arguments, if any.
// NOTE: The TAO::Argument corresponding to the return value is
// always the first element in the array, regardless of
// whether or not the return type is void.
TAO::Argument * const * const begin = args + 1; // Skip the return value.
TAO::Argument * const * const end = args + nargs;
for (TAO::Argument * const * i = begin; i != end; ++i)
{
if (!(*i)->demarshal (cdr))
{
TAO_InputCDR::throw_skel_exception (errno);
}
}
}
void
TAO::Upcall_Wrapper::post_upcall (TAO_ServerRequest& server_request,
TAO::Argument * const * args,
size_t nargs)
{
TAO_OutputCDR & cdr = (*server_request.outgoing ());
TAO::Argument * const * const begin = args;
TAO::Argument * const * const end = args + nargs;
for (TAO::Argument * const * i = begin; i != end; ++i)
{
if (!(*i)->marshal (cdr))
{
TAO_OutputCDR::throw_skel_exception (errno);
}
}
// Reply body marshaling completed. No other fragments to send.
cdr.more_fragments (false);
}
TAO_END_VERSIONED_NAMESPACE_DECL
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