alignment.cpp

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// alignment.cpp,v 1.3 2003/10/28 18:30:44 bala Exp

// ============================================================================
//
// = LIBRARY
//   TAO/tests/CDR
//
// = FILENAME
//   alignment.cpp
//
// = DESCRIPTION
//   Verifies that octet sequence marshaling does not affect
//   marshaling.
//
// = AUTHORS
//   Carlos O'Ryan ([e-mail])
//
// ============================================================================

#include "tao/CDR.h"

#include "ace/Log_Msg.h"

int main(int, char*[])
{
  int status = 0;

  for (CORBA::ULong i = 16; i != 64; ++i)
    {
      ACE_Message_Block mb (i + ACE_CDR::MAX_ALIGNMENT);
      ACE_CDR::mb_align (&mb);
      mb.wr_ptr (i);

      CORBA::Double dbl = i;

      TAO_OutputCDR cdr;
      cdr.write_ulong (i); // length
      cdr.write_octet_array_mb (&mb);
      cdr.write_double (dbl);
      cdr.write_double (dbl);

      TAO_InputCDR input (cdr);

      CORBA::ULong len;

      input.read_ulong (len);

      if (len != i)
        {
          ACE_DEBUG ((LM_DEBUG,
                      "ERROR: mismatched lengths,"
                      " got %d, expected %d\n",
                      len, i));
        }

      ACE_Message_Block read_mb (len + ACE_CDR::MAX_ALIGNMENT);
      ACE_CDR::mb_align (&mb);
      mb.wr_ptr (len);
      input.read_char_array (mb.rd_ptr (), len);

      CORBA::Double read_dbl;
      if (input.read_double (read_dbl) == 0)
        ACE_DEBUG ((LM_DEBUG, "Failure reading double...\n"));

      if (read_dbl != dbl)
        {
          status = 1;
          ACE_DEBUG ((LM_DEBUG,
                      "ERROR: mismatched doubles,"
                      " got %f, expected %f\n",
                      read_dbl, dbl));
          for (const ACE_Message_Block *j = cdr.begin ();
               j != cdr.end ();
               j = j->cont ())
            {
              ACE_HEX_DUMP ((LM_DEBUG,
                             j->rd_ptr (),
                             j->length (),
                             "Output CDR stream"));
            }
          TAO_InputCDR debug (cdr);
          ACE_HEX_DUMP ((LM_DEBUG,
                         debug.rd_ptr (),
                         debug.length (),
                         "Input CDR stream"));
        }
    }

  return status;
}