Follow-up Comment #8, patch #6353 (project duplicity):
Attached is a work-in-progress patch that I hope to finish up on tomorrow.
It is not yet ready for commit or even testing (parts are unimplemented). I
am posting it mostly to give anyone a chance to object to the design.
It introducing a threading package that is intended to contain a duplicity
aware support interface for threading related activities.
It also creates a separate errors module for exception classes that do not
fit in a specific module.
It also creats an AsyncScheduler which will be used to schedule tasks for
asynchronous execution. The interface is designed to seamlessly support n:th
level concurrency in the future, though initially only concurrency 0 and 1
will be allowable in duplicity (with 0 translating into current synchronous
behavior, and 1 translating into the behavior by the initially proposed patch,
and >1 translating to concurrent upload/download). It supports simple barrier
semantics for dependency handling.
The AsyncScheduler is not yet implemented, and it has not been plugged into
and actually used by the rest of duplicity.
(file #14840)
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Additional Item Attachment:
File name: duplicity_concurrency_checkpoint1.diff Size:10 KB
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