N3191: C++ Timeout Specification git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@119909 91177308-0d34-0410-b5e6-96231b3b80d8 
diff --git a/include/mutex b/include/mutex index 45ce669..c87d0fd 100644 --- a/include/mutex +++ b/include/mutex 
@@ -221,7 +221,7 @@  template <class _Rep, class _Period>  _LIBCPP_INLINE_VISIBILITY  bool try_lock_for(const chrono::duration<_Rep, _Period>& __d) - {return try_lock_until(chrono::monotonic_clock::now() + __d);} + {return try_lock_until(chrono::steady_clock::now() + __d);}  template <class _Clock, class _Duration>  bool try_lock_until(const chrono::time_point<_Clock, _Duration>& __t);  void unlock(); @@ -264,7 +264,7 @@  template <class _Rep, class _Period>  _LIBCPP_INLINE_VISIBILITY  bool try_lock_for(const chrono::duration<_Rep, _Period>& __d) - {return try_lock_until(chrono::monotonic_clock::now() + __d);} + {return try_lock_until(chrono::steady_clock::now() + __d);}  template <class _Clock, class _Duration>  bool try_lock_until(const chrono::time_point<_Clock, _Duration>& __t);  void unlock();