timer: use our own AtomicU64 on targets with target_has_atomic less than 64#1538

Merged

carllerche merged 4 commits intotokio-rs:masterfrom taiki-e:timer-atomic

Sep 13, 2019

+94-18

Commits on Sep 4, 2019

Commits on Sep 8, 2019

Use Mutex only on targets with target_has_atomic less than 64
taiki-e
committed