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// $Id$
// Implementation of the Dynamic Server Skeleton Interface.
#include "Server_Request.h"
ACE_RCSID(DynamicInterface, Server_Request, "$Id$")
#include "tao/NVList.h"
#include "tao/GIOP_Utils.h"
#include "tao/Marshal.h"
#if !defined (__ACE_INLINE__)
# include "Server_Request.inl"
#endif /* ! __ACE_INLINE__ */
// Reference counting for DSI ServerRequest object.
CORBA::ULong
CORBA_ServerRequest::_incr_refcnt (void)
{
ACE_GUARD_RETURN (TAO_SYNCH_MUTEX,
ace_mon,
this->lock_,
0);
return this->refcount_++;
}
CORBA::ULong
CORBA_ServerRequest::_decr_refcnt (void)
{
{
ACE_GUARD_RETURN (TAO_SYNCH_MUTEX,
ace_mon,
this->lock_,
0);
this->refcount_--;
if (this->refcount_ != 0)
{
return this->refcount_;
}
}
delete this;
return 0;
}
CORBA_ServerRequest::CORBA_ServerRequest (
TAO_ServerRequest &orb_server_request
)
: lazy_evaluation_ (0),
ctx_ (CORBA::Context::_nil ()),
params_ (CORBA::NVList::_nil ()),
retval_ (0),
exception_ (0),
refcount_ (1),
orb_server_request_ (orb_server_request),
sent_gateway_exception_ (0)
{
this->orb_server_request_.is_dsi ();
}
CORBA_ServerRequest::~CORBA_ServerRequest (void)
{
if (this->params_ != 0)
{
CORBA::release (this->params_);
}
delete this->retval_;
delete this->exception_;
}
// Unmarshal in/inout params, and set up to marshal the appropriate
// inout/out/return values later on.
void
CORBA_ServerRequest::arguments (CORBA::NVList_ptr &list
TAO_ENV_ARG_DECL)
{
// arguments() must be called before either of these.
if (this->params_ != 0 || this->exception_ != 0)
{
ACE_THROW (CORBA::BAD_INV_ORDER (7, CORBA::COMPLETED_NO));
}
// Save params for later use when marshaling the reply.
this->params_ = list;
this->params_->_tao_incoming_cdr (this->orb_server_request_.incoming (),
CORBA::ARG_IN | CORBA::ARG_INOUT,
this->lazy_evaluation_
TAO_ENV_ARG_PARAMETER);
// Pass this alignment back to the TAO_ServerRequest.
this->orb_server_request_.dsi_nvlist_align (
this->params_->_tao_target_alignment ()
);
}
// Store the result value. There's either an exception, or a result,
// but not both of them. Results can be reported (at most once)
// only after the parameter list has been provided (maybe empty).
void
CORBA_ServerRequest::set_result (const CORBA::Any &value
TAO_ENV_ARG_DECL)
{
// Setting a result when another result already exists or if an exception
// exists or before the args have been processeed is an error.
if (this->retval_ != 0 || this->exception_ != 0 || this->params_ == 0)
{
ACE_THROW (CORBA::BAD_INV_ORDER (8, CORBA::COMPLETED_NO));
}
ACE_NEW_THROW_EX (this->retval_,
CORBA::Any (value),
CORBA::NO_MEMORY ());
ACE_CHECK;
}
// NOTE: if "TAO_ENV_SINGLE_ARG_PARAMETER" is set, there has been a system exception,
// and it will take precedence over exceptions reported using the
// set_exception() mechanism of the ServerRequest, which we assume
// the application writer will use to report only user exceptions.
// If both types of exception happen on the same invocation, the user
// exception will be lost.
// Store the exception value.
void
CORBA_ServerRequest::set_exception (const CORBA::Any &value
TAO_ENV_ARG_DECL)
{
CORBA::TypeCode_var tc = value.type ();
// set_exception() can be called at any time, but the Any arg MUST
// contain an exception.
if (tc->kind () != CORBA::tk_except)
{
ACE_THROW (CORBA::BAD_PARAM (21, CORBA::COMPLETED_MAYBE));
}
ACE_NEW_THROW_EX (this->exception_,
CORBA::Any (value),
CORBA::NO_MEMORY ());
ACE_CHECK;
this->orb_server_request_.exception_type (TAO_GIOP_USER_EXCEPTION);
}
// This method will be utilized by the DSI servant to marshal outgoing
// parameters.
void
CORBA_ServerRequest::dsi_marshal (TAO_ENV_SINGLE_ARG_DECL)
{
// There was a user exception, no need to marshal any parameters.
if (this->sent_gateway_exception_)
{
return;
}
if (this->orb_server_request_.exception_type () == TAO_GIOP_NO_EXCEPTION)
{
// In DSI, we can't rely on the skeleton to do this.
if (this->retval_ == 0 && this->params_ == 0)
{
this->orb_server_request_.argument_flag (0);
}
this->orb_server_request_.init_reply ();
// Send the return value, if any.
if (this->retval_ != 0)
{
this->retval_->_tao_encode (
this->orb_server_request_.outgoing (),
this->orb_server_request_.orb_core ()
TAO_ENV_ARG_PARAMETER
);
ACE_CHECK;
}
// Send the "inout" and "out" parameters.
if (this->params_ != 0)
{
this->params_->_tao_encode (
this->orb_server_request_.outgoing (),
this->orb_server_request_.orb_core (),
CORBA::ARG_INOUT | CORBA::ARG_OUT
TAO_ENV_ARG_PARAMETER
);
ACE_CHECK;
}
}
else
{
// This defaults to 1, but just to be safe...
this->orb_server_request_.argument_flag (1);
// Write the reply header to the ORB request's outgoing CDR stream.
this->orb_server_request_.init_reply ();
this->exception_->_tao_encode (
this->orb_server_request_.outgoing (),
this->orb_server_request_.orb_core ()
TAO_ENV_ARG_PARAMETER
);
ACE_CHECK;
}
this->orb_server_request_.tao_send_reply ();
}
void
CORBA_ServerRequest::gateway_exception_reply (ACE_CString &raw_exception)
{
// This defaults to 1, but just to be safe...
this->orb_server_request_.argument_flag (1);
// This reply path handles only user exceptions.
this->orb_server_request_.exception_type (TAO_GIOP_USER_EXCEPTION);
this->orb_server_request_.init_reply ();
// We know nothing about this exception, so we marshal it as a block
// of bytes. The outgoing stream's byte order has already been matched
// to the original source of the reply.
this->orb_server_request_.outgoing ().write_octet_array (
ACE_reinterpret_cast (const CORBA::Octet *, raw_exception.fast_rep ()),
raw_exception.length () + ACE_CDR::MAX_ALIGNMENT
);
// This will prevent the marshaling of any parameters into this reply.
this->sent_gateway_exception_ = 1;
this->orb_server_request_.tao_send_reply ();
}
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