Function reset_transmit_packet

sql/sql_repl.cc:364–386

Reset thread transmit packet buffer for event sending This function allocates header bytes for event transmission, and should be called before store the event data to the packet buffer. */

  should be called before store the event data to the packet buffer.
*/
static int reset_transmit_packet(binlog_send_info *info, ushort flags,
                                 ulong *ev_offset, const char **errmsg)
{
  int ret= 0;
  String *packet= &info->thd->packet;

  /* reserve and set default header */
  packet->length(0);
  packet->set("\0", 1, &my_charset_bin);

  if (info->thd->semi_sync_slave)
  {
    if (repl_semisync_master.reserve_sync_header(packet))
    {
      info->error= ER_UNKNOWN_ERROR;
      *errmsg= "Failed to run hook 'reserve_header'";
      ret= 1;
    }
  }

  *ev_offset= packet->length();
  return ret;
}

int get_user_var_int(const char *name,
                     long long int *value, int *null_value)