2 Commits

Author SHA1 Message Date
Alex Moon
c9acebf783 Fix FairSemaphore bugs
- `acquire` and `acquire_all` futures were `!Send`, even for `M: RawMutex + Send` due to the captured `Cell`.
- If multiple `acquire` tasks were queued, waking the first would not wake the second, even if there were permits remaining after the first `acquire` completed.
2024-04-03 19:13:57 -04:00
Alex Moon
f8a6007e1c Semaphore synchronization primitive
This provides both a "greedy" and "fair" async semaphore implementation.
2024-03-30 22:25:41 -04:00