Can I do multi thread to read an image in chunks?

[nery-bemagro]

Does this lib support multi thread for read only?

[fintelia]

Not at the moment. It is tricky because the Read trait doesn't support concurrent calls from different threads

[197g]

I suppose we could look into R: Clone as an appropriate bound to create an independent fork of the decoder (for the current image)? When the underlying reader allows for concurrent access to its data stream it should be straightforward to provide such a bound (or a wrapper). In particular for Unix files that would be a simple struct { fd: Arc<File>, offset: u64 } where all read calls are being served by read_at calls.

If demand is sufficiently high, I'm open for having such a struct defined within this crate.