component_cs.cpp

来自「这是广泛使用的通信开源项目,对于大容量,高并发的通讯要求完全能够胜任,他广泛可用」· C++ 代码 · 共 308 行

//
// component_cs.cpp,v 1.14 2003/11/05 03:20:27 bala Exp
//

// ============================================================================
//
// = LIBRARY
//    TAO IDL
//
// = FILENAME
//    component_cs.cpp
//
// = DESCRIPTION
//    Visitor generating code for Components in the client stub.
//
// = AUTHOR
//    Jeff Parsons
//
// ============================================================================

ACE_RCSID (be_visitor_component,
           component_cs,
           "component_cs.cpp,v 1.14 2003/11/05 03:20:27 bala Exp")

// ******************************************************
// Component visitor for client stub
// ******************************************************

be_visitor_component_cs::be_visitor_component_cs (be_visitor_context *ctx)
  : be_visitor_component (ctx)
{
}

be_visitor_component_cs::~be_visitor_component_cs (void)
{
}

int
be_visitor_component_cs::visit_component (be_component *node)
{
  if (node->cli_stub_gen () || node->imported ())
    {
      return 0;
    }

  be_type *bt;

  // Set the right type.
  if (this->ctx_->alias ())
    {
      bt = this->ctx_->alias ();
    }
  else
    {
      bt = node;
    }

  TAO_OutStream *os = this->ctx_->stream ();

  *os << be_nl << "// TAO_IDL - Generated from" << be_nl
      << "// " << __FILE__ << ":" << __LINE__;

  if (node->is_defined ())
    {
      *os << be_nl << be_nl
          << "// Traits specializations for " << node->name () << ".";

      *os << be_nl << be_nl
          << "ACE_TEMPLATE_CLASS_MEMBER_SPECIALIZATION " << be_nl
          << node->name () << "_ptr" << be_nl
          << "TAO::Objref_Traits<" << node->name () << ">::tao_duplicate ("
          << be_idt << be_idt_nl
          << node->name () << "_ptr p" << be_uidt_nl
          << ")" << be_uidt_nl
          << "{" << be_idt_nl
          << "return " << node->name () << "::_duplicate (p);" << be_uidt_nl
          << "}";

      *os << be_nl << be_nl
          << "ACE_TEMPLATE_CLASS_MEMBER_SPECIALIZATION " << be_nl
          << "void" << be_nl
          << "TAO::Objref_Traits<" << node->name () << ">::tao_release ("
          << be_idt << be_idt_nl
          << node->name () << "_ptr p" << be_uidt_nl
          << ")" << be_uidt_nl
          << "{" << be_idt_nl
          << "CORBA::release (p);" << be_uidt_nl
          << "}";

      *os << be_nl << be_nl
          << "ACE_TEMPLATE_CLASS_MEMBER_SPECIALIZATION " << be_nl
          << node->name () << "_ptr" << be_nl
          << "TAO::Objref_Traits<" << node->name () << ">::tao_nil (void)"
          << be_nl
          << "{" << be_idt_nl
          << "return " << node->name () << "::_nil ();" << be_uidt_nl
          << "}";

      *os << be_nl << be_nl
          << "ACE_TEMPLATE_CLASS_MEMBER_SPECIALIZATION " << be_nl
          << "CORBA::Boolean" << be_nl
          << "TAO::Objref_Traits<" << node->name () << ">::tao_marshal ("
          << be_idt << be_idt_nl
          << node->name () << "_ptr p," << be_nl
          << "TAO_OutputCDR & cdr" << be_uidt_nl
          << ")" << be_uidt_nl
          << "{" << be_idt_nl
          << "return p->marshal (cdr);" << be_uidt_nl
          << "}";
    }

  // Generate the proxy broker factory function pointer definition.
  *os << be_nl << be_nl
      << "// Function pointer for collocation factory initialization."
      << be_nl
      << "TAO::Collocation_Proxy_Broker * " << be_nl
      << "(*" << node->flat_client_enclosing_scope ()
      << node->base_proxy_broker_name ()
      << "_Factory_function_pointer) ("
      << be_idt << be_idt_nl
      << "CORBA::Object_ptr obj" << be_uidt_nl
      << ") = 0;" << be_uidt;

   // Generate the destructor and default constructor.
  *os << be_nl << be_nl
      << node->name () << "::~" << node->local_name ()
      << " (void)" << be_nl;
  *os << "{}" << be_nl << be_nl;

  *os << node->name () << "::" << node->local_name ()
      << " (int collocated)" << be_nl
      << "{" << be_idt_nl
      << "this->" << node->flat_name ()
      << "_setup_collocation (collocated);" << be_uidt_nl
      << be_uidt << "}" << be_nl << be_nl;

  // Collocation setup method.
  *os << "void" << be_nl
      << node->name () << "::" << node->flat_name ()
      << "_setup_collocation (int collocated)" << be_nl
      << "{" << be_idt_nl
      << "if (collocated)" << be_idt_nl
      << "this->the" << node->base_proxy_broker_name ()
      << "_ =" << be_idt_nl
      << "::" << node->flat_client_enclosing_scope ()
      << node->base_proxy_broker_name ()
      << "_Factory_function_pointer (this);"
      << be_uidt << be_uidt_nl;

  AST_Component *base = node->base_component ();

  if (base != 0)
    {
      *os << be_nl
          << "this->" << base->flat_name ()
          << "_setup_collocation" << " (collocated);";
    }

  *os << be_uidt_nl << "}" << be_nl << be_nl;

  if (be_global->any_support ())
    {
      *os << "void " << be_nl
          << node->name ()
          << "::_tao_any_destructor (void *_tao_void_pointer)" << be_nl
          << "{" << be_idt_nl
          << node->local_name () << " *_tao_tmp_pointer = ACE_static_cast ("
          << node->local_name () << " *, _tao_void_pointer);" << be_nl
          << "CORBA::release (_tao_tmp_pointer);" << be_uidt_nl
          << "}" << be_nl << be_nl;
    }

  // The _narrow method.
  *os << node->full_name () << "_ptr" << be_nl << node->full_name ()
      << "::_narrow (" << be_idt << be_idt_nl
      << "CORBA::Object_ptr"
      << " _tao_objref" << be_nl
      << "ACE_ENV_ARG_DECL" << be_uidt_nl
      << ")" << be_uidt_nl
      << "{" << be_idt_nl;

  *os << "return" << be_idt_nl
      << "TAO::Narrow_Utils<"
      << node->local_name () << ">::narrow (";

  *os << be_idt << be_idt_nl
      << "_tao_objref," << be_nl
      << "\"" << node->repoID () << "\"," << be_nl
      << node->flat_client_enclosing_scope ()
      << node->base_proxy_broker_name ()
      << "_Factory_function_pointer" << be_nl
      << "ACE_ENV_ARG_PARAMETER" << be_uidt_nl
      << ");" << be_uidt << be_uidt << be_uidt_nl
      << "}" << be_nl << be_nl;

  // The _duplicate method
  *os << node->full_name () << "_ptr" << be_nl
      << node->full_name () << "::_duplicate ("
      << bt->nested_type_name (this->ctx_->scope ())
      << "_ptr obj)" << be_nl
      << "{" << be_idt_nl
      << "if (! CORBA::is_nil (obj))" << be_idt_nl
      << "{" << be_idt_nl
      << "obj->_add_ref ();" << be_uidt_nl
      << "}" << be_uidt_nl << be_nl
      << "return obj;" << be_uidt_nl
      << "}" << be_nl << be_nl;

  // The is_a method.
  *os << "CORBA::Boolean" << be_nl
      << node->full_name () << "::_is_a (" << be_idt << be_idt_nl
      << "const char *value" << be_nl
      << "ACE_ENV_ARG_DECL" << be_uidt_nl
      << ")" << be_uidt_nl
      << "{" << be_idt_nl
      << "if (" << be_idt << be_idt_nl;

  AST_Component *ancestor = node;

  while (ancestor != 0)
    {
      *os << "!ACE_OS::strcmp (" << be_idt << be_idt_nl
          << "(char *)value," << be_nl
          << "\"" << ancestor->repoID () << "\"" << be_uidt_nl
          << ") ||" << be_uidt_nl;

      ancestor = ancestor->base_component ();
    }

  *os << "!ACE_OS::strcmp (" << be_idt << be_idt_nl
      << "(char *)value," << be_nl
      << "\"IDL:omg.org/Components/CCMObject:1.0\"" << be_uidt_nl
      << ")" << be_uidt << be_uidt_nl
      << " )" << be_nl
      << "{" << be_idt_nl
      << "return 1; // success using local knowledge" << be_uidt_nl
      << "}" << be_uidt_nl
      << "else" << be_idt_nl
      << "{" << be_idt_nl
      << "return this->Object::_is_a (" << be_idt << be_idt_nl
      << "value" << be_nl
      << "ACE_ENV_ARG_PARAMETER" << be_uidt_nl
      << ");" << be_uidt << be_uidt_nl
      << "}" << be_uidt << be_uidt_nl
      << "}" << be_nl << be_nl;

  *os << "const char*" << be_nl
      << node->full_name ()
      << "::_interface_repository_id (void) const"
      << be_nl
      << "{" << be_idt_nl
      << "return \"" << node->repoID ()
      << "\";" << be_uidt_nl
      << "}";

  *os << be_nl << be_nl
      << "CORBA::Boolean" << be_nl
      << node->name () << "::marshal (TAO_OutputCDR &cdr)" << be_nl
      << "{" << be_idt_nl
      << "return (cdr << this);" << be_uidt_nl
      << "}";

  // Generate code for the elements of the component.
  if (this->visit_scope (node) == -1)
    {
      ACE_ERROR_RETURN ((LM_ERROR,
                         "(%N:%l) be_visitor_component_cs::"
                         "visit_component - "
                         "codegen for scope failed\n"),
                        -1);
    }

  be_visitor_context ctx (*this->ctx_);

  // Smart Proxy classes.
  if (be_global->gen_smart_proxies ())
    {
      ctx.state (TAO_CodeGen::TAO_INTERFACE_SMART_PROXY_CS);
      be_visitor_interface_smart_proxy_cs isp_visitor (&ctx);

      if (node->accept (&isp_visitor) == -1)
        {
          ACE_ERROR_RETURN ((LM_ERROR,
                             "be_visitor_component_cs::"
                             "visit_component - "
                             "codegen for smart proxy classes failed\n"),
                            -1);
        }
    }

  if (be_global->tc_support ())
    {
      ctx.sub_state (TAO_CodeGen::TAO_TC_DEFN_TYPECODE);
      be_visitor_typecode_defn tc_visitor (&ctx);

      if (node->accept (&tc_visitor) == -1)
        {
          ACE_ERROR_RETURN ((LM_ERROR,
                             "(%N:%l) be_visitor_component_cs::"
                             "visit_component - "
                             "TypeCode definition failed\n"),
                            -1);
        }
    }

  return 0;
}