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File listening options #443

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ziw-liu opened this issue Oct 3, 2023 · 1 comment

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ziw-liu commented Oct 3, 2023 •

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For on-the-fly reconstruction that's planned for v1.0.0, we need to monitor file changes on the system, ideally in a portable (OS-agnostic) way.

Some options are:

Use the IPC lock from zarr-python. This requires integration with the writer to write the lock file.
Use Qt's file system watcher combined with zarr's chunk counting (zarr.Array.nchunks_initialized / zarr.Array.nchunks) to infer the change. This may not be safe from race conditions.

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talonchandler commented Oct 4, 2023

Thanks for looking into this @ziw-liu. Qt's file system watcher seems very promising to me...I'm excited to give it a shot.

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