[libcxx testing] Remove ALLOW_RETRIES from sleep_until.pass.cpp
authorDavid Zarzycki <dave@znu.io>
Sun, 10 May 2020 09:51:14 +0000 (05:51 -0400)
committerDavid Zarzycki <dave@znu.io>
Sun, 10 May 2020 09:59:09 +0000 (05:59 -0400)
commit4f4d6c81f8b7505a1f0dcd887f75a7a8225ba52b
tree24bdbba9dab6e752cec3136f08b0d1b7efcdb977
parenta832fc4b0c1e056edbb458973fac1f0c6db7a9e5
[libcxx testing] Remove ALLOW_RETRIES from sleep_until.pass.cpp

Operating systems are best effort by default, so we cannot assume that
sleep-like APIs return as soon as we'd like.

Even if a sleep-like API returns when we want it to, the potential for
preemption means that attempts to measure time are subject to delays.
libcxx/test/std/thread/thread.threads/thread.thread.this/sleep_until.pass.cpp