[libcxx-commits] [PATCH] D117585: [libcxx] Support waiting on steady clock with ext. threading

[Mikhail Maltsev via Phabricator via libcxx-commits]

miyuki created this revision.
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miyuki requested review of this revision.
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This patch adds support for using the steady (monotonic) clock when
waiting on a condition variable with a timeout. This feature is
currently implemented for POSIX threads. The patch generalizes it to
be usable with an external threading library by adding a new
function __libcpp_condvar_steady_timedwait.

      

External threading layer implementors should define
_LIBCPP_HAS_COND_STEADY_TIMEDWAIT in their __external_threading
header and implement the __libcpp_condvar_steady_timedwait function
to use the feature.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D117585

Files:
  libcxx/include/__config
  libcxx/include/__mutex_base
  libcxx/include/__threading_support

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