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//
// $Id$
//
// ============================================================================
//
// = LIBRARY
// TAO IDL
//
// = FILENAME
// thru_poa_collocated_ss.cpp
//
// = DESCRIPTION
// Visitor generating code for thru_poa_collocated Operation in the skeleton.
//
// = AUTHOR
// Aniruddha Gokhale
//
// ============================================================================
#include "idl.h"
#include "idl_extern.h"
#include "be.h"
#include "be_visitor_operation.h"
ACE_RCSID(be_visitor_operation, thru_poa_collocated_ss, "$Id$")
// *************************************************************************
// be_visitor_operation_thru_poa_collocated_ss --
// This visitor generates code for the thru_poa_collocated operation signature in a
// server skeletons file
// *************************************************************************
be_visitor_operation_thru_poa_collocated_ss::be_visitor_operation_thru_poa_collocated_ss
(be_visitor_context *ctx)
: be_visitor_operation (ctx)
{
}
be_visitor_operation_thru_poa_collocated_ss::~be_visitor_operation_thru_poa_collocated_ss (void)
{
}
int be_visitor_operation_thru_poa_collocated_ss::visit_operation (be_operation *node)
{
TAO_OutStream *os = this->ctx_->stream ();
// We need the interface node in which this operation was defined. However,
// if this operation node was an attribute node in disguise, we get this
// information from the context
be_interface *intf;
intf = this->ctx_->attribute ()
? be_interface::narrow_from_scope (this->ctx_->attribute ()->defined_in ())
: be_interface::narrow_from_scope (node->defined_in ());
if (!intf)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_operation_thru_poa_collocated_ss::"
"visit_operation - "
"bad interface scope\n"),
-1);
}
// retrieve the operation return type
be_type *bt = be_type::narrow_from_decl (node->return_type ());
if (!bt)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_operation_thru_poa_collocated_ss::"
"visit_operation - "
"Bad return type\n"),
-1);
}
// STEP 2: generate the return type mapping (same as in the header file)
be_visitor_context ctx (*this->ctx_);
ctx.state (TAO_CodeGen::TAO_OPERATION_RETTYPE_OTHERS);
be_visitor *visitor = tao_cg->make_visitor (&ctx);
if (!visitor)
{
ACE_ERROR_RETURN ((LM_ERROR,
"be_visitor_operation_thru_poa_collocated_ss::"
"visit_operation - "
"Bad visitor for return type\n"),
-1);
}
if (bt->accept (visitor) == -1)
{
delete visitor;
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_operation_thru_poa_collocated_ss::"
"visit_operation - "
"codegen for return type failed\n"),
-1);
}
delete visitor;
*os << " " << intf->full_coll_name (be_interface::THRU_POA) << "::";
*os << node->local_name ();
// STEP 4: generate the argument list with the appropriate mapping (same as
// in the header file)
ctx = *this->ctx_;
ctx.state (TAO_CodeGen::TAO_OPERATION_ARGLIST_OTHERS);
visitor = tao_cg->make_visitor (&ctx);
if (!visitor)
{
ACE_ERROR_RETURN ((LM_ERROR,
"be_visitor_operation_ss::"
"visit_operation - "
"Bad visitor to return type\n"),
-1);
}
if (node->accept (visitor) == -1)
{
delete visitor;
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_operation_ss::"
"visit_operation - "
"codegen for argument list failed\n"),
-1);
}
delete visitor;
*os << "{" << be_idt_nl
<< "TAO_Object_Adapter::Servant_Upcall servant_upcall ("
<< be_idt << be_idt_nl
<< "this->_stubobj ()->servant_orb_var ()->orb_core ()"
<< be_uidt_nl
<< ");" << be_uidt_nl
<< "CORBA::Object_var forward_to;" << be_nl
<< "servant_upcall.prepare_for_upcall (" << be_idt << be_idt_nl
<< "this->_object_key ()," << be_nl
<< "\"" << node->original_local_name () << "\"," << be_nl
<< "forward_to.out ()";
if (!be_global->exception_support ())
*os << " ACE_ENV_ARG_PARAMETER);\n" << be_uidt_nl << be_uidt;
else
*os << be_uidt_nl << ");\n" << be_uidt;
// check if there is an exception
if (!be_global->exception_support ())
if (this->gen_check_exception (0) == -1)
{
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_operation_thru_poa_collocated_ss::"
"visit_operation - "
"codegen for checking exception failed\n"),
-1);
}
os->indent ();
if (!this->void_return_type (bt))
{
*os << "return ";
}
*os << "ACE_reinterpret_cast (" << be_idt << be_idt_nl
<< intf->full_skel_name () << "_ptr," << be_nl
<< "servant_upcall.servant ()->_downcast (" << be_idt << be_idt_nl
<< "\"" << intf->repoID () << "\"" << be_uidt_nl
<< ")" << be_uidt << be_uidt_nl
<< ")" << be_uidt;
if (this->gen_invoke (ctx, node) == -1)
return -1;
if (this->void_return_type (bt))
{
*os << "return;\n";
}
*os << "}\n\n";
return 0;
}
int be_visitor_operation_thru_poa_collocated_ss::gen_invoke (
be_visitor_context &ctx,
be_operation *node
)
{
TAO_OutStream *os = this->ctx_->stream ();
*os << "->" << node->local_name () << " ("
<< be_idt << be_idt << be_idt_nl;
ctx = *this->ctx_;
ctx.state (TAO_CodeGen::TAO_OPERATION_COLLOCATED_ARG_UPCALL_SS);
be_visitor *visitor = tao_cg->make_visitor (&ctx);
if (!visitor || (node->accept (visitor) == -1))
{
delete visitor;
ACE_ERROR_RETURN ((LM_ERROR,
"(%N:%l) be_visitor_operation_thru_poa_collocated_ss::"
"gen_invoke - "
"codegen for making upcall failed\n"),
-1);
}
// End the upcall
*os << be_uidt_nl
<< ");\n";
return 0;
}
int
be_visitor_operation_thru_poa_collocated_ss::void_return_type (be_type *bt)
{
// is the operation return type void?
if (bt->node_type () == AST_Decl::NT_pre_defined
&& (be_predefined_type::narrow_from_decl (bt)->pt ()
== AST_PredefinedType::PT_void))
return 1;
else
return 0;
}
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