[boost] [thread]Forever sleeping

Subject: [boost] [thread]Forever sleeping
From: Niklas Angare (li51ckf02_at_[hidden])
Date: 2017-02-22 22:39:33

Recent runs of my regression test runner NA-QNX660-x86 leave a lot of 
Boost.Thread test executables stuck in nanosleep, waiting for a condition 
variable, or both.

Commit 544eda [1] which switched from CLOCK_REALTIME to CLOCK_MONOTONIC 
seems suspicious to me. If the returned timespec is ever compared to values 
based on the CLOCK_REALTIME epoch, such as system_clock, the results will be 
quite undesirable. Are you sure the return values of timespec_now() are only 
ever compared to each other and values based on the CLOCK_MONOTONIC epoch?

[1] 
https://github.com/boostorg/thread/commit/544eda51bdf0c62b2f29dea6fe1cf935ad62580e

Regards,

Niklas Angare