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// $Id$
// Portions of this file are:
// Copyright 1994-1995 by Sun Microsystems Inc.
// All Rights Reserved
// CDR: Encode/Decode basic machine data types
//
// Implementation of OMG "Common Data Representation" (CDR) ... there
// are one routine each for byte/halfword/word/doubleword put/get,
// which adjust to establish "natural" alignment (the bulk of the
// code) and then put or get with byteswapping as needed.
//
// The implementation knows that native data formats are conformant
// with OMG-IDL's (and hence CDR's) size requirements, and relies on
// the fact that (for example) CORBA_Long is always four bytes long
// even if the environment's "int" is a different size.
//
// char, octet 8 bits (1 byte)
// short, unsigned short 16 bits (2 bytes)
// long, unsigned long, float 32 bits (4 bytes)
// double, (unsigned) long long 64 bits (8 bytes)
// long double 128 bits (16 bytes)
//
// Moreover, this "knows" that the native 'char' represents ISO
// Latin/1 characters (an ASCII superset addressing Western European
// characters) and that "double" and "float" comply with the IEEE
// standards. (The "long double" may not be a native data type,
// though.)
//
// THREADING NOTE: "CDR" is a data structure which must be protected
// by external critical sections.
#include "tao/Timeprobe.h"
#include "tao/CDR.h"
#include "tao/ORB_Core.h"
#include "tao/singletons.h"
#include "tao/Environment.h"
#if !defined (__ACE_INLINE__)
# include "tao/CDR.i"
#endif /* ! __ACE_INLINE__ */
ACE_RCSID(tao, CDR, "$Id$")
#if defined (ACE_ENABLE_TIMEPROBES)
static const char *TAO_CDR_Timeprobe_Description[] =
{
"OutputCDR::ctor[1] - enter",
"OutputCDR::ctor[1] - leave",
"OutputCDR::ctor[2] - enter",
"OutputCDR::ctor[2] - leave",
"OutputCDR::ctor[3] - enter",
"OutputCDR::ctor[3] - leave"
};
enum
{
TAO_OUTPUT_CDR_CTOR1_ENTER = 2000,
TAO_OUTPUT_CDR_CTOR1_LEAVE,
TAO_OUTPUT_CDR_CTOR2_ENTER,
TAO_OUTPUT_CDR_CTOR2_LEAVE,
TAO_OUTPUT_CDR_CTOR3_ENTER,
TAO_OUTPUT_CDR_CTOR3_LEAVE
};
// Setup Timeprobes
ACE_TIMEPROBE_EVENT_DESCRIPTIONS (TAO_CDR_Timeprobe_Description,
TAO_OUTPUT_CDR_CTOR1_ENTER);
#endif /* ACE_ENABLE_TIMEPROBES */
TAO_OutputCDR::TAO_OutputCDR (size_t size,
int byte_order,
ACE_Allocator *buffer_allocator,
ACE_Allocator *data_block_allocator,
size_t memcpy_tradeoff,
ACE_Char_Codeset_Translator *char_translator,
ACE_WChar_Codeset_Translator *wchar_translator)
: ACE_OutputCDR (size,
byte_order,
buffer_allocator,
data_block_allocator,
memcpy_tradeoff)
{
ACE_FUNCTION_TIMEPROBE (TAO_OUTPUT_CDR_CTOR1_ENTER);
this->char_translator_ = char_translator;
this->wchar_translator_ = wchar_translator;
}
TAO_OutputCDR::TAO_OutputCDR (char *data,
size_t size,
int byte_order,
ACE_Allocator *buffer_allocator,
ACE_Allocator *data_block_allocator,
size_t memcpy_tradeoff,
ACE_Char_Codeset_Translator *char_translator,
ACE_WChar_Codeset_Translator *wchar_translator)
: ACE_OutputCDR (data,
size,
byte_order,
buffer_allocator,
data_block_allocator,
memcpy_tradeoff)
{
ACE_FUNCTION_TIMEPROBE (TAO_OUTPUT_CDR_CTOR2_ENTER);
this->char_translator_ = char_translator;
this->wchar_translator_ = wchar_translator;
}
TAO_OutputCDR::TAO_OutputCDR (ACE_Message_Block *data,
int byte_order,
size_t memcpy_tradeoff,
ACE_Char_Codeset_Translator *char_translator,
ACE_WChar_Codeset_Translator *wchar_translator)
: ACE_OutputCDR (data,
byte_order,
memcpy_tradeoff)
{
ACE_FUNCTION_TIMEPROBE (TAO_OUTPUT_CDR_CTOR3_ENTER);
this->char_translator_ = char_translator;
this->wchar_translator_ = wchar_translator;
}
CORBA::TypeCode::traverse_status
TAO_OutputCDR::encode (CORBA::TypeCode_ptr tc,
const void *data,
const void *data2,
CORBA::Environment &ACE_TRY_ENV)
{
TAO_Marshal_Object *mobj =
TAO_MARSHAL_FACTORY::instance ()->make_marshal_object
(tc, ACE_TRY_ENV);
ACE_CHECK_RETURN (CORBA::TypeCode::TRAVERSE_STOP);
if (!mobj)
return CORBA::TypeCode::TRAVERSE_STOP;
return mobj->encode (tc,
data,
data2,
this,
ACE_TRY_ENV);
}
CORBA::Boolean
operator<< (TAO_OutputCDR& cdr,
const CORBA::Any &x)
{
// @@ This function should *not* use the interpreter, there must be
// a way to do this with just CDR operations!!!!
ACE_TRY_NEW_ENV
{
CORBA::TypeCode::traverse_status status =
TAO_MARSHAL_ANY::instance ()->encode (0,
&x,
0,
&cdr,
ACE_TRY_ENV);
ACE_TRY_CHECK;
if (status== CORBA::TypeCode::TRAVERSE_CONTINUE)
return 1;
// else return 0 at the end of the function
}
ACE_CATCH (CORBA_Exception, ex)
{
return 0;
}
ACE_ENDTRY;
return 0;
}
CORBA::Boolean
operator<< (TAO_OutputCDR& cdr, const CORBA::TypeCode *x)
{
ACE_TRY_NEW_ENV
{
// @@ This function should *not* use the interpreter, there must
// be a way to do this with just CDR operations!!!!
CORBA::TypeCode::traverse_status status =
TAO_MARSHAL_TYPECODE::instance ()->encode (0,
&x,
0,
&cdr,
ACE_TRY_ENV);
ACE_TRY_CHECK;
if (status == CORBA::TypeCode::TRAVERSE_CONTINUE)
return 1;
// else return 0 at the end of the function
}
ACE_CATCH (CORBA_Exception, ex)
{
return 0;
}
ACE_ENDTRY;
return 0;
}
CORBA::TypeCode::traverse_status
TAO_OutputCDR::append (CORBA::TypeCode_ptr tc,
TAO_InputCDR *src,
CORBA::Environment &ACE_TRY_ENV)
{
TAO_Marshal_Object *mobj =
TAO_MARSHAL_FACTORY::instance ()->make_marshal_object (tc,
ACE_TRY_ENV);
ACE_CHECK_RETURN (CORBA::TypeCode::TRAVERSE_STOP);
if (mobj == 0)
return CORBA::TypeCode::TRAVERSE_STOP;
return mobj->append (tc, src, this, ACE_TRY_ENV);
}
// ****************************************************************
TAO_InputCDR::TAO_InputCDR (const TAO_OutputCDR& rhs,
ACE_Allocator* buffer_allocator,
ACE_Allocator* data_block_allocator,
TAO_ORB_Core* orb_core)
: ACE_InputCDR (rhs,
buffer_allocator
? buffer_allocator
: (orb_core ? orb_core->output_cdr_buffer_allocator () : 0),
data_block_allocator
? data_block_allocator
: (orb_core ? orb_core->output_cdr_dblock_allocator () :
0)),
orb_core_ (orb_core)
{
this->init_translators ();
}
void
TAO_InputCDR::init_translators (void)
{
if (this->orb_core_ != 0)
{
this->char_translator_ = this->orb_core_->from_iso8859 ();
this->wchar_translator_ = this->orb_core_->from_unicode ();
}
}
CORBA::TypeCode::traverse_status
TAO_InputCDR::decode (CORBA::TypeCode_ptr tc,
const void *data,
const void *data2,
CORBA::Environment &ACE_TRY_ENV)
{
TAO_Marshal_Object *mobj =
TAO_MARSHAL_FACTORY::instance ()->make_marshal_object
(tc, ACE_TRY_ENV);
ACE_CHECK_RETURN (CORBA::TypeCode::TRAVERSE_STOP);
if (!mobj)
return CORBA::TypeCode::TRAVERSE_STOP;
return mobj->decode (tc,
data,
data2,
this,
ACE_TRY_ENV);
}
CORBA::TypeCode::traverse_status
TAO_InputCDR::skip (CORBA::TypeCode_ptr tc,
CORBA::Environment &ACE_TRY_ENV)
{
TAO_Marshal_Object *mobj =
TAO_MARSHAL_FACTORY::instance ()->make_marshal_object
(tc, ACE_TRY_ENV);
ACE_CHECK_RETURN (CORBA::TypeCode::TRAVERSE_STOP);
if (mobj == 0)
return CORBA::TypeCode::TRAVERSE_STOP;
return mobj->skip (tc,
this,
ACE_TRY_ENV);
}
CORBA::Boolean
operator>> (TAO_InputCDR &cdr,
CORBA::Any &x)
{
ACE_TRY_NEW_ENV
{
CORBA::TypeCode::traverse_status status =
TAO_MARSHAL_ANY::instance ()->decode (0,
&x,
0,
&cdr,
ACE_TRY_ENV);
ACE_TRY_CHECK;
if (status != CORBA::TypeCode::TRAVERSE_CONTINUE)
return 0;
}
ACE_CATCH (CORBA_Exception, ex)
{
return 0;
}
ACE_ENDTRY;
return 1;
}
CORBA::Boolean
operator>> (TAO_InputCDR& cdr, CORBA::TypeCode *&x)
{
ACE_TRY_NEW_ENV
{
CORBA::TypeCode::traverse_status status =
TAO_MARSHAL_TYPECODE::instance ()->decode (0,
&x,
0,
&cdr,
ACE_TRY_ENV);
ACE_TRY_CHECK;
if (status != CORBA::TypeCode::TRAVERSE_CONTINUE)
return 0;
}
ACE_CATCH (CORBA_Exception, ex)
{
return 0;
}
ACE_ENDTRY;
return 1;
}
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