Re: [PATCH] libgcc: fix Win32 CV abnormal spurious wakeups in timed wait [PR113850]

[Jonathan Yong <10walls@gmail.com>]

On 2/10/24 10:10, Matteo Italia wrote:
> Il 09/02/24 15:18, Matteo Italia ha scritto:
>> The Win32 threading model uses __gthr_win32_abs_to_rel_time to convert
>> the timespec used in gthreads to specify the absolute time for end of
>> the condition variables timed wait to a milliseconds value relative to
>> "now" to pass to the Win32 SleepConditionVariableCS function.
>>
>> Unfortunately, the conversion is incorrect, as, due to a typo, it
>> returns the relative time _in seconds_, so SleepConditionVariableCS
>> receives a timeout value 1000 times shorter than it should be, resulting
>> in a huge amount of spurious wakeups in calls such as
>> std::condition_variable::wait_for or wait_until.
>>
> Re-reading the commit message I found a few typos, and it was generally 
> a bit more obscure than I like; reworded it now, hope it's better.

Thanks, pushed to master and 13.x branches.