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core.messaging.meta.command_meta_information

CommandMetaInformation Objects​

@dataclasses.dataclass(frozen=True, kw_only=True)
class CommandMetaInformation(MessageMetaInformation)

Message meta information specific to Command.

Attributes:

  • requires_reply - Commands always require a reply.
  • done_callbacks - Called when a reply was received for this command.
  • fail_callbacks - Called when no reply was received for this command or an exception occurred.
  • async_callbacks - Whether the callbacks should be invoked asynchronously in their own thread.
  • timeout - The timeout (in seconds) before a command is deemed not replied.