C++ Result::error方法代码示例

void
PConnection::trace_read_completion (const ACE_Asynch_Read_Stream::Result &result)
{
    int loglevel = this->config().loglevel ();

    size_t xfer_bytes = result.bytes_transferred();

    if (loglevel == 0)
    {
        LogLocker log_lock;

        ACE_DEBUG ((LM_DEBUG,
            ACE_TEXT ("(%t) **** %s=%d handle_read_stream() ****\n"),
            this->get_name(),
            this->index()));

        ACE_DEBUG ((LM_DEBUG,
            ACE_TEXT ("bytes_to_read = %d\n"),
            result.bytes_to_read ()));

        ACE_DEBUG ((LM_DEBUG,
            ACE_TEXT ("handle = %d\n"),
            result.handle ()));

        ACE_DEBUG ((LM_DEBUG,
            ACE_TEXT ("bytes_transfered = %d\n"),
            xfer_bytes));

        ACE_DEBUG ((LM_DEBUG,
            ACE_TEXT ("error = %d\n"),
            result.error ()));

        trace_buffers (result.get_buffer_info (), xfer_bytes, true);

    }
    else if (result.error () != 0 )
    {
        LogLocker log_lock;

        ACE_Log_Msg::instance ()->errnum (result.error ());
        ACE_OS::last_error (result.error ());
        ACE_Log_Msg::instance ()->log (LM_ERROR,
            ACE_TEXT ("(%t) %s=%d READ %p\n"),
            this->get_name (),
            this->index (),
            ACE_TEXT ("ERROR"));
    }
    else if (loglevel == 1)
    {
        ACE_DEBUG ((LM_DEBUG,
            ACE_TEXT ("(%t) %s=%d read_bytes=%d OK\n"),
            this->get_name (),
            this->index (),
            xfer_bytes));
    }

    return;

}

void
PConnection::handle_read_stream (const ACE_Asynch_Read_Stream::Result &result)
{
    this->trace_read_completion (result);

    {
        ACE_GUARD (ACE_SYNCH_MUTEX, monitor, this->mutex ());

        this->update_last_time();

        this->ref_cnt_r_--;

        ACE_Message_Block & mb = result.message_block ();
        int              error = result.error();
        size_t      xfer_bytes = result.bytes_transferred ();

        this->total_rcv_ += xfer_bytes;

        if (error == 0 && this->protocol_ != 0)
        {
            this->protocol_->on_read_finished (mb, xfer_bytes, error);
        }
        else
        {
            this->free_msg (&mb);
            this->cancel ();
        }

        if (!this->is_safe_to_delete ())
            return;
    }
    this->manager()->destroy_connection (this);
}

void
Sender::handle_read_stream (const ACE_Asynch_Read_Stream::Result &result)
{
  this->trace_read_completion (result);

  {
    ACE_GUARD (ACE_SYNCH_MUTEX, monitor, this->mutex ());

    this->ref_cnt_r_--;

    ACE_Message_Block & mb = result.message_block ();
    mb.release ();

    if (result.error () != 0)
      {
        this->cancel_i ();
      }
    else if (result.bytes_transferred () == 0)
      {
        this->shutdown_i ();
      }
    else if (this->initiate_write_stream () != 0 ||
             this->initiate_read_stream() != 0)
      {
        this->cancel_i ();
      }

    if (!this->is_safe_to_delete())
      return;
  }
  this->manager()->destroy_session(this);
}

void
Server_Handler::handle_read_stream
  (const ACE_Asynch_Read_Stream::Result &result)
{
  if (!result.success ())
    {
      errno = result.error ();
      ACE_ERROR ((LM_ERROR,
                  ACE_TEXT ("(%t) Server handle %d: %p\n"),
                  this->stream_.handle (),
                  ACE_TEXT ("read")));
      delete this;
      return;
    }
  ACE_DEBUG ((LM_DEBUG, ACE_TEXT ("(%t) Server %@ handle %d recv %B of %B bytes\n"),
              this, this->stream_.handle (),
              result.bytes_transferred (), result.bytes_to_read ()));
  if (result.bytes_transferred () == 0)
    {
      ACE_DEBUG ((LM_DEBUG,
                  ACE_TEXT ("(%t) Server handle %d closed by peer\n"),
                  this->stream_.handle ()));
      delete this;
      return;
    }

  // Scan through the received data for the expected string. There may be
  // multiples and/or partials. Count up how many arrive before the connection
  // is closed.
  // Remember that the client side sends the terminating nul; in case the
  // whole thing didn't arrive, we add a nul to the end of the receive
  // block so we don't run off the end. When the recv into this buffer was
  // initiated, we left the last byte empty to facilitate this.
  ACE_Message_Block &b = result.message_block ();
  *(b.wr_ptr ()) = '\0';
  size_t test_string_len = ACE_OS::strlen (test_string);
  while (b.length () >= test_string_len)
    {
      if (0 != ACE_OS::strncmp (b.rd_ptr (), test_string, test_string_len))
        ACE_ERROR_BREAK ((LM_ERROR,
                          ACE_TEXT ("(%t) Read string: %C; expected: %C\n"),
                          b.rd_ptr (),
                          test_string));
      b.rd_ptr (test_string_len);
      // That ran up over the string; can we also consume the nul?
      if (b.length () > 0)
        b.rd_ptr (1);
      ++this->msgs_rcvd_;
    }
  b.crunch ();
  if (this->stream_.read (b, b.space () - 1) == -1)
    {
      ACE_ERROR ((LM_ERROR,
                  ACE_TEXT ("(%t) Server_Handler: %p\n"),
                  ACE_TEXT ("read")));
      delete this;
    }
  return;
}

void
Receiver::handle_read_stream (const ACE_Asynch_Read_Stream::Result &result)
{
  ACE_DEBUG ((LM_DEBUG,
              "handle_read_stream called\n"));

  // Reset pointers.
  result.message_block ().rd_ptr ()[result.bytes_transferred ()] = '\0';

  ACE_DEBUG ((LM_DEBUG, "********************\n"));
  ACE_DEBUG ((LM_DEBUG, "%s = %d\n", "bytes_to_read", result.bytes_to_read ()));
  ACE_DEBUG ((LM_DEBUG, "%s = %d\n", "handle", result.handle ()));
  ACE_DEBUG ((LM_DEBUG, "%s = %d\n", "bytes_transfered", result.bytes_transferred ()));
  ACE_DEBUG ((LM_DEBUG, "%s = %d\n", "act", (uintptr_t) result.act ()));
  ACE_DEBUG ((LM_DEBUG, "%s = %d\n", "success", result.success ()));
  ACE_DEBUG ((LM_DEBUG, "%s = %d\n", "completion_key", (uintptr_t) result.completion_key ()));
  ACE_DEBUG ((LM_DEBUG, "%s = %d\n", "error", result.error ()));
  ACE_DEBUG ((LM_DEBUG, "********************\n"));
#if 0
  // This can overrun the ACE_Log_Msg buffer and do bad things.
  // Re-enable it at your risk.
  ACE_DEBUG ((LM_DEBUG, "%s = %s\n", "message_block", result.message_block ().rd_ptr ()));
#endif /* 0 */

  if (result.success () && result.bytes_transferred () != 0)
    {
      // Successful read: write the data to the file asynchronously.
      // Note how we reuse the <ACE_Message_Block> for the writing.
      // Therefore, we do not delete this buffer because it is handled
      // in <handle_write_stream>.
      if (this->wf_.write (result.message_block (),
                           result.bytes_transferred (),
                           this->file_offset_) == -1)
        {
          ACE_ERROR ((LM_ERROR,
                      "%p\n",
                      "ACE_Asynch_Write_File::write"));
          return;
        }

      // Initiate new read from the stream.
      if (this->initiate_read_stream () == -1)
        return;
    }
  else
    {
      ACE_DEBUG ((LM_DEBUG,
                  "Receiver completed\n"));

      // No need for this message block anymore.
      result.message_block ().release ();

      // Note that we are done with the test.
      done = 1;

      // We are done: commit suicide.
      delete this;
    }
}

void
Sender::handle_read_stream (const ACE_Asynch_Read_Stream::Result &result)
{
  ACE_DEBUG ((LM_DEBUG,
              "handle_read_stream called\n"));

  // Reset pointers.
  result.message_block ().rd_ptr ()[result.bytes_transferred ()] =
    '\0';

  ACE_DEBUG ((LM_DEBUG, "********************\n"));
  ACE_DEBUG ((LM_DEBUG, "%s = %d\n", "bytes_to_read", result.bytes_to_read
              ()));
  ACE_DEBUG ((LM_DEBUG, "%s = %d\n", "handle", result.handle ()));
  ACE_DEBUG ((LM_DEBUG, "%s = %d\n", "bytes_transfered",
              result.bytes_transferred ()));
  ACE_DEBUG ((LM_DEBUG, "%s = %d\n", "act", (u_long) result.act ()));
  ACE_DEBUG ((LM_DEBUG, "%s = %d\n", "success", result.success ()));
  ACE_DEBUG ((LM_DEBUG, "%s = %d\n", "completion_key", (u_long)
              result.completion_key ()));
  ACE_DEBUG ((LM_DEBUG, "%s = %d\n", "error", result.error ()));
  ACE_DEBUG ((LM_DEBUG, "********************\n"));
  ACE_DEBUG ((LM_DEBUG, "%s = %s\n", "message_block",
              result.message_block ().rd_ptr ()));

  result.message_block().release ();

  if ( result.success () && result.bytes_transferred () != 0)
    {
      // Successful read: write the data to the file asynchronously.
      // Note how we reuse the <ACE_Message_Block> for the writing.
      // Therefore, we do not delete this buffer because it is handled
      // in <handle_write_stream>.

      if ( duplex != 0 )  // full duplex, continue read
        {
          initiate_read_stream () ;
        }
      else  // half-duplex  writey, after write we will start read
        {
          initiate_write_stream () ;
        }
    }

  {
    ACE_Guard<MyMutex> locker (m_Mtx) ;
    nIOCount-- ;
  }
}

void
ACE_SSL_Asynch_Stream::handle_read_stream (
  const ACE_Asynch_Read_Stream::Result &result)
{
  ACE_MT (ACE_GUARD (ACE_SYNCH_MUTEX, ace_mon, this->mutex_));

  this->bio_inp_flag_ &= ~BF_AIO;

  size_t bytes_trn = result.bytes_transferred ();
  u_long errval    = result.error ();

  if (errval != 0)                     // error ?
     this->bio_inp_errno_ = errval;    // save err code
  else if (bytes_trn == 0)             // end of stream ?
     this->bio_inp_flag_ |= BF_EOS;    // set flag EOS

  this->do_SSL_state_machine ();

  return;
}

void
PSession::trace_read_completion (const ACE_Asynch_Read_Stream::Result &result)
{
    {
        ACE_GUARD (ACE_SYNCH_MUTEX, monitor, this->mutex ());

        this->update_last_time();

        if (result.success())
            this->total_rcv_ += result.bytes_transferred ();
    }

    int loglevel = this->config().loglevel ();

    ACE_Message_Block & mb = result.message_block ();

    size_t xfer_bytes = result.bytes_transferred();
    char * last  = mb.wr_ptr();
    char * first = last - xfer_bytes; 

    if (loglevel == 0)
    {
        LogLocker log_lock;

        ACE_DEBUG ((LM_DEBUG,
            ACE_TEXT ("(%t) **** %s=%d handle_read_stream() ****\n"),
            this->get_name(),
            this->index()));

        ACE_DEBUG ((LM_DEBUG,
            ACE_TEXT ("bytes_to_read = %d\n"),
            result.bytes_to_read ()));

        ACE_DEBUG ((LM_DEBUG,
            ACE_TEXT ("handle = %d\n"),
            result.handle ()));

        ACE_DEBUG ((LM_DEBUG,
            ACE_TEXT ("bytes_transfered = %d\n"),
            xfer_bytes));

        ACE_DEBUG ((LM_DEBUG,
            ACE_TEXT ("error = %d\n"),
            result.error ()));

        ACE_DEBUG ((LM_DEBUG,
            ACE_TEXT ("message_block:\n")));

        ACE_HEX_DUMP ((LM_DEBUG, first, xfer_bytes));


        ACE_DEBUG ((LM_DEBUG,
            ACE_TEXT ("**** end of message ****************\n")));
    }
    else if (result.error () != 0 )
    {
        LogLocker log_lock;

        ACE_Log_Msg::instance ()->errnum (result.error ());
        ACE_OS::last_error (result.error ());
        ACE_Log_Msg::instance ()->log (LM_ERROR,
            ACE_TEXT ("(%t) %s=%d READ %p\n"),
            this->get_name (),
            this->index (),
            ACE_TEXT ("ERROR"));
    }
    else if (loglevel == 1)
    {
        ACE_DEBUG ((LM_DEBUG,
            ACE_TEXT ("(%t) %s=%d read_bytes=%d OK\n"),
            this->get_name (),
            this->index (),
            xfer_bytes));
    }

    return;
}

void
Client_Service_Handler::handle_read_stream (
  const ACE_Asynch_Read_Stream::Result &result)
{
  ACE_GUARD (ACE_SYNCH_RECURSIVE_MUTEX, guard, this->mtx_);

  this->pending_reads_--;

  if (!result.success () || 0 == result.bytes_transferred ())
  {
    // Error or remote disconnect

    result.message_block ().release ();

    if (!this->closing_)
    {
      // No error message when shutting down

      if (!result.success ())
      {
        ACE_DEBUG ((LM_DEBUG, ACE_TEXT (
          "Client_Service_Handler::handle_read_stream: error: %d\n"),
          result.error ()));
      }
      else
      {
        ACE_DEBUG ((LM_DEBUG, ACE_TEXT (
          "Client_Service_Handler::handle_read_stream: remote disconnect\n")));
      }
    }

    this->read_completed_.signal ();

    this->cancel_and_close ();
  }
  else if (result.bytes_transferred () < result.bytes_to_read ())
  {
    // More to read...

    if (this->read (result.message_block(),
      result.bytes_to_read () - result.bytes_transferred ()) < 0)
    {
      result.message_block ().release ();

      this->cancel_and_close ();
    }
  }
  else
  {
    // Read it all

    this->completed_reads_++;

    result.message_block ().release ();

    // We now have sent and received data in the proactor thread.  Signal the
    // main thread to try sending data in the main thread.
    if (this->completed_reads_ == 1)
    {
      this->ready_for_external_write_.signal ();
    }
    else
    {
      // The main thread wrote data that was echoed back to us on our
      // second read.  If we get here, the test was successful in that
      // the main thread successfully sent data to the server.
      this->read_successful_ = 1;
      this->read_completed_.signal ();
    }

    // Next read
    if (this->read_data () < 0)
    {
      this->cancel_and_close ();
    }
  }
}

void
Receiver::handle_read_stream (const ACE_Asynch_Read_Stream::Result &result)
{
  ACE_Message_Block *mb = &result.message_block ();

  ACE_DEBUG ((LM_DEBUG,
              ACE_TEXT ("Receiver::handle_read_stream - (%s) read %d\n"),
              this->odd_ ? ACE_TEXT ("ODD ") : ACE_TEXT ("EVEN"),
              result.bytes_transferred ()));

  // Transfer only complete chunks to the writer.
  // Save last partial chunk for the next call.
  // On disconnect (error or 0 transferred), transfer whatever we have.

  // at this stage there should not be anything there
  ACE_TEST_ASSERT (!this->partial_chunk_);

  // first, remove the empty chunks
  remove_empty_chunks (mb);

  if (mb && Receiver::writer_)
    { // there's something to write, and who to write to

      // write everything or only complete chunks?

      // write everything - when no new bytes were transferred
      int write_everything = 0;
      if (!result.bytes_transferred ())
        write_everything = 1;
      if (write_everything)
        Receiver::writer_->handle_read_chunks_chain (mb,
                                                     this->odd_ ? ODD : EVEN);
      else
        { // filter out the partial chunk at the end (if present)
          // and save it for later before writing the full chunks

          // have this->partial_chunk_ point to the last chunk in the chain
          size_t last_index = last_chunk (mb, this->partial_chunk_);
          if (this->partial_chunk_ &&
              this->partial_chunk_->length () < chunk_size)
            { // found partial chunk at end of chain
              // detach it from the chain
              if (last_index > 1) // chain bigger than 1
                {
                  ACE_Message_Block *pre_last = mb;
                  for (size_t index = 1; index < last_index - 1; ++index)
                    pre_last = pre_last->cont ();

                  // detach partial chunk from chain
                  pre_last->cont (0);
                }
              else
                // chain in length of 1 - so we need to zero mb
                mb = 0;
            }
          else // last is a full chunk, so hand it over with the rest
            this->partial_chunk_ = 0;

          // transfer (if there's anything left)
          if (mb && mb->total_length ())
            Receiver::writer_->handle_read_chunks_chain (
                                                         mb,
                                                         this->odd_ ? ODD : EVEN);

          // initiate more reads only if no error
          if (!result.error ())
            this->initiate_read_stream ();
          else
            ACE_TEST_ASSERT (0);
        }
    }
  else if (mb && !Receiver::writer_)
    // no one to write to
    free_chunks_chain (mb);

  --this->io_count_;

  this->check_destroy ();
}