[crac] RFR: Wake up all TIMED_WAITING threads after restore [v4]

[Radim Vansa]

> This is a fix for an issue found by @jankratochvil when testing #53: Threads that enter sleep or timed parking use absolute monotonic time for pthread_cond_timedwait(). When the monotonic time changes during C/R we need to wake all threads to readjust the timeout to the new absolute time.
> 
> This introduces effectively a spurious wakeup; this is permitted for all the uses of pthread_cond_timedwait. Implementation either handles that transparently or propagates the wakeup to Java.
> 
> This commit does not handle timed waiting in non-Java threads other than WatcherThread.

Radim Vansa has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains five additional commits since the last revision:

 - Merge remote-tracking branch 'origin/crac' into timed_wait
 - Don't use OS thread state
 - Inline Thread::interrupt
 - Use Threads::java_threads_do, check spurious timeouts
 - Wake up all TIMED_WAITING threads after restore
   
   Threads that enter sleep or timed parking use absolute monotonic time
   for pthread_cond_wait(). The specification permits spurious wakeups;
   implementation either handles that transparently or propagates
   the wakeup.
   
   This commit does not handle timed waiting in non-Java threads other than
   WatcherThread.

-------------

Changes:
  - all: https://git.openjdk.org/crac/pull/85/files
  - new: https://git.openjdk.org/crac/pull/85/files/df9ed092..4ddd1f05

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=crac&pr=85&range=03
 - incr: https://webrevs.openjdk.org/?repo=crac&pr=85&range=02-03

  Stats: 1081 lines in 17 files changed: 1047 ins; 10 del; 24 mod
  Patch: https://git.openjdk.org/crac/pull/85.diff
  Fetch: git fetch https://git.openjdk.org/crac.git pull/85/head:pull/85

PR: https://git.openjdk.org/crac/pull/85