Not sure yet how to approach bug 801598, but we can already extract the part of OS.File that wraps communication with a worker in promises, and this will be useful for bug 753768.

Comment on attachment 685324 [details] [diff] [review] Extracting PromiseWorker from OS.File Review of attachment 685324 [details] [diff] [review]: ----------------------------------------------------------------- Even if we wind up doing something different, I think this is much cleaner.

Backed out for bug 817923. https://hg.mozilla.org/integration/mozilla-inbound/rev/5dcf727f6fba

Try: https://tbpl.mozilla.org/?tree=Try&rev=0978e76cd86d

Unfortunately, this has bitrotted more than I'm comfortable fixing up myself. Please post a rebased patch.

Try: https://tbpl.mozilla.org/?tree=Try&rev=031a41e36e24

Same one, minus bitrot.

Hey all -- doing some doc updating here. I see there's some documentation already created, and I'm updating and tidying that up, and I notice that it's importing PromiseWorker.js instead of PromiseWorker.jsm. Which are you supposed to use, or are both used but in different circumstances, or...?

PromiseWorker.js needs to be imported from the worker, while PromiseWorker.jsm needs to be imported from the main thread.