tree f1e4c715e0e99bbe4206fd91c5b207bb297be4f5
parent 42a3c030c958e6e099162b746ada04792b3a1c67
author Derek Mauro <dmauro@google.com> 1680972729 -0700
committer Copybara-Service <copybara-worker@google.com> 1680972776 -0700

Synchronization: Support true relative timeouts using the POSIX
proposed standard pthread_cond_clockwait() and sem_clockwait().
These are currently implemented in glibc >= 2.30.

These methods take a clock and use an absolute time with reference
to that clock, so KernelTimeout now can produce these values.

PiperOrigin-RevId: 522824226
Change-Id: Ife98713f6f95d800b1f8e52d5364a3dbebc4f8a6