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author | Florian Klink <flokli@flokli.de> | 2024-06-16T08·43+0300 |
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committer | flokli <flokli@flokli.de> | 2024-06-16T12·02+0000 |
commit | 7e42b4f314c2136366c4456f2af894108e765abf (patch) | |
tree | cee3fb45a378c76ff9d62bf18ce0118e9d3cfbe1 /web/atom-feed | |
parent | 452299dcd205847477874698740626af041705df (diff) |
fix(tvix/store/bin): fix shutdown behaviour for FUSE r/8285
Both umounts happening from another process, as well as tvix-store itself calling umount() on FuseDaemon will cause the FUSE worker threads to terminate. So far there was no nice way to wait on these threads to be terminated from multiple places, causing the `tvix-store mount` command to only be terminated if interrupted via ctrl-c, not via an external umount. Update FuseDaemon to use a ThreadPool, which gives us a join primitive over all threads, that can also be called from multiple places. Await on a join() from there to end the program, not the ctrl-c signal handler as it was before. Using FuseDaemon from multiple tasks requires Arc<>-ing both the ThreadPool as well as the inner FuseSession (which also needs to be inside a Mutex if we want to unmount), but now we can clone FuseDaemon around and use it in two places. We could probably also have used an Option and drop the FuseSession after the first umount, but this looks cleaner. Change-Id: Id635ef59b560c111db52ad0b3ca3d12bc7ae28ca Reviewed-on: https://cl.tvl.fyi/c/depot/+/11825 Reviewed-by: Brian Olsen <me@griff.name> Tested-by: BuildkiteCI
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