ducky.interfaces module¶
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class
ducky.interfaces.
IMachineWorker
[source]¶ Bases:
object
Base class for objects that provide pluggable service to others.
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boot
(*args)[source]¶ Prepare for providing the service. After this call, it may be requested by others.
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die
(exc)[source]¶ Exceptional state requires immediate termination of service. Probably no object will ever have need to call others’
die
method, it’s intended for internal use only.
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halt
()[source]¶ Terminate service. It will never be requested again, object can destroy its internal state, and free allocated resources.
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class
ducky.interfaces.
ISnapshotable
[source]¶ Bases:
object
Base class for objects that can be saved into a snapshot.
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load_state
(state)[source]¶ Restore state of the object.
Parameters: state (ducky.snapshot.SnapshotNode) – snapshot node containing saved state.
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save_state
(parent)[source]¶ Create state of the object, and attach it to a parent snapshot node.
Parameters: parent (ducky.interfaces.ISnapshotable) – parent snapshot node.
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