Interface Tango::Device_2

Global index

  interface Device_2 : Device;

A new release of the basic Device interface. This new release has been introduced mainly to support Tango device server internal polling. Inheritance is used between this new release and the old one. This release mainly defines a new release of the command_inout and read_attributes calls with a new parameter. It also add a new call to read command or attributes result history.

Operation index.

command_inout_2

command_inout_history_2

command_list_query_2

command_query_2

get_attribute_config_2

read_attribute_history_2

read_attributes_2

Operations.

• command_inout_2

    any command_inout_2 (
      in string command,
      in any argin,
      in DevSource source
    ) raises(DevFailed);
  

  Execute a command on a device synchronously with one input parameter and one output parameter read from the polling cache buffer or from the device itself

  • Parameters IN :
    • command : ascii string e.g. "On"
    • argin : command input parameter e.g. float
    • source : The data source. Used to specify if the command result must be

  return : command result.
  

• command_inout_history_2

    DevCmdHistoryList command_inout_history_2 (
      in string command,
      in long n
    ) raises(DevFailed);
  

  Get command history buffer. Return command result history for polled command

  • Parameters IN :
    • command : ascii string e.g. "On"
    • n : The history depth

  return : command history.
  

• command_list_query_2

    DevCmdInfoList_2 command_list_query_2 (
    ) raises(DevFailed);
  

  Query device to see what commands it supports. Compared to the Device interface, the command configuration has one more field (The display level)

  return : list of commands and their types
  

• command_query_2

    DevCmdInfo_2 command_query_2 (
      in string command
    ) raises(DevFailed);
  

  Query device to see command argument. Compared to the Device interface, the command configuration has one more field (The display level)

  • Parameter IN :
    • command : name

  return : command and its types
  

• get_attribute_config_2

    AttributeConfigList_2 get_attribute_config_2 (
      in DevVarStringArray names
    ) raises(DevFailed);
  

  Read the configuration for a variable list of attributes from a device. Compared to the Device interface, the attribute configuration has one more field (The display level)

  • Parameter IN :
    • names : Read the configuration for a variable list of attributes from a device. Compared to the Device interface, the attribute configuration has one more field (The display level)

  return : list of attribute configurations read
  

• read_attribute_history_2

    DevAttrHistoryList read_attribute_history_2 (
      in string name,
      in long n
    ) raises(DevFailed);
  

  Get attribute value history buffer. Return attribute value history for polled attribute

  • Parameters IN :
    • name : ascii string
    • n : ame ascii string

  return : attribute value history.
  

• read_attributes_2

    AttributeValueList read_attributes_2 (
      in DevVarStringArray names,
      in DevSource source
    ) raises(DevFailed);
  

  Read a variable list of attributes from a device read from the polling cache buffer or from the device itself

  • Parameters IN :
    • names : Read a variable list of attributes from a device read from the polling cache buffer or from the device itself
    • source : The data source. Used to specify if the command result must be

  return : list of attribute values read