C++ (Cpp) ACE_Asynch_Read_Stream::open Examples

Example #1

File: JAWS_IO.cpp Project: asdlei00/ACE

void
JAWS_Asynch_IO::read (ACE_Message_Block& mb,
                      int size)
{
  ACE_Asynch_Read_Stream ar;

  if (ar.open (*this, this->handle_) == -1
      || ar.read (mb, size) == -1)
    this->handler_->read_error ();
}

Example #2

File: IO_Handler.cpp Project: DOCGroup/ACE_TAO

void
JAWS_Asynch_Handler::handle_read_stream (const ACE_Asynch_Read_Stream::Result
                                         &result)
{
  JAWS_TRACE ("JAWS_Asynch_Handler::handle_read_stream");

  this->dispatch_handler ();

  if (result.act () != 0)
    {
      // This callback is for io->receive_file()
      JAWS_TRACE ("JAWS_Asynch_Handler::handle_read_stream (recv_file)");

      int code = 0;
      if (result.success () && result.bytes_transferred () != 0)
        {
          if (result.message_block ().length ()
              == result.message_block ().size ())
            code = ACE_Filecache_Handle::ACE_SUCCESS;
          else
            {
              ACE_Asynch_Read_Stream ar;
              if (ar.open (*this, this->handler ()->handle ()) == -1
                  || ar.read (result.message_block (),
                              result.message_block ().size ()
                              - result.message_block ().length (),
                              result.act ()) == -1)
                code = -1;
              else
                return;
            }
        }
      else
        code = -1;

      if (code == ACE_Filecache_Handle::ACE_SUCCESS)
        this->handler ()->receive_file_complete ();
      else
        this->handler ()->receive_file_error (code);

      result.message_block ().release ();
      delete (ACE_Filecache_Handle *) result.act ();
    }
  else
    {
      // This callback is for this->read()
      JAWS_TRACE ("JAWS_Asynch_Handler::handle_read_stream (read)");

      if (result.success ()
          && result.bytes_transferred () != 0)
        this->handler ()->read_complete (&result.message_block ());
      else
        this->handler ()->read_error ();
    }
}

Example #3

File: IO.cpp Project: azraelly/knetwork

void
JAWS_Asynch_IO::receive_file (JAWS_IO_Handler *ioh,
                              const char *filename,
                              void *initial_data,
                              unsigned int initial_data_length,
                              unsigned int entire_length)
{
  JAWS_TRACE ("JAWS_Asynch_IO::receive_file");

  ioh->idle ();

  JAWS_Asynch_IO_Handler *aioh =
    dynamic_cast<JAWS_Asynch_IO_Handler *> (ioh);

  ACE_Message_Block *mb = 0;
  ACE_Filecache_Handle *handle;

  ACE_NEW (handle, ACE_Filecache_Handle (filename, entire_length, ACE_NOMAP));

  int result = handle->error ();

  if (result == ACE_Filecache_Handle::ACE_SUCCESS)
    {
      ACE_OS::memcpy (handle->address (),
                      initial_data,
                      initial_data_length);

      int bytes_to_read = entire_length - initial_data_length;

      ACE_NEW (mb, ACE_Message_Block ((char *)handle->address ()
                                      + initial_data_length, bytes_to_read));

      if (mb == 0)
        {
          errno = ENOMEM;
          result = -1;
        }
      else
        {
          ACE_Asynch_Read_Stream ar;

          if (ar.open (*(aioh->handler ()), aioh->handle ()) == -1
              || ar.read (*mb, mb->size () - mb->length (), handle) == -1)
            result = -1;
        }
    }

  if (result != ACE_Filecache_Handle::ACE_SUCCESS)
    {
      this->handler_->receive_file_error (result);
      delete mb;
      delete handle;
    }
}

Example #4

File: IO.cpp Project: azraelly/knetwork

void
JAWS_Asynch_IO::read (JAWS_IO_Handler *ioh,
                      ACE_Message_Block* mb,
                      unsigned int size)
{
  JAWS_TRACE ("JAWS_Asynch_IO::read");

  ioh->idle ();

  JAWS_Asynch_IO_Handler *aioh =
    dynamic_cast<JAWS_Asynch_IO_Handler *> (ioh);

  ACE_Asynch_Read_Stream ar;

  if (ar.open (*(aioh->handler ()), aioh->handle ()) == -1
      || ar.read (*mb, size) == -1)
    aioh->read_error ();
}