[FFmpeg-devel] [PATCH] avutil/cpu: Use HW_NCPUONLINE to detect # of online CPUs with OpenBSD

[Derek Buitenhuis]

On 16/04/2021 23:10, Brad Smith wrote:
> ping.

I found this in my spam folder, so it's possible others using GMail had the same issue.

- Derek

> 
> On 4/3/2021 2:49 PM, Brad Smith wrote:
>> avutil/cpu: Use HW_NCPUONLINE to detect # of online CPUs with OpenBSD
>>
>> Signed-off-by: Brad Smith <brad at comstyle.com>
>> ---
>>   libavutil/cpu.c | 6 ++++++
>>   1 file changed, 6 insertions(+)
>>
>> diff --git a/libavutil/cpu.c b/libavutil/cpu.c
>> index 8e3576a1f3..9d249737df 100644
>> --- a/libavutil/cpu.c
>> +++ b/libavutil/cpu.c
>> @@ -291,6 +291,12 @@ int av_cpu_count(void)
>>       DWORD_PTR proc_aff, sys_aff;
>>       if (GetProcessAffinityMask(GetCurrentProcess(), &proc_aff, &sys_aff))
>>           nb_cpus = av_popcount64(proc_aff);
>> +#elif HAVE_SYSCTL && defined(HW_NCPUONLINE)
>> +    int mib[2] = { CTL_HW, HW_NCPUONLINE };
>> +    size_t len = sizeof(nb_cpus);
>> +
>> +    if (sysctl(mib, 2, &nb_cpus, &len, NULL, 0) == -1)
>> +        nb_cpus = 0;
>>   #elif HAVE_SYSCTL && defined(HW_NCPU)
>>       int mib[2] = { CTL_HW, HW_NCPU };
>>       size_t len = sizeof(nb_cpus);
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