[Jack-Devel] memory lock

[Robin Gareus]

On 10/15/2018 10:51 PM, Fons Adriaensen wrote:
> Hello all,
> 
> A simple question: does libjack (try to) lock client memory ?

There is no simple answer, except "depends".

jack2: no.

jack1: yes, for client threads. jack1 also calls mlockall() and has a
blacklist of system-wide libs/path to not lock [1]. You can however
disable it with an option at compile and runtime.


Both jack1 and jack2's libjack's ringbuffer implementation has an API
jack_ringbuffer_mlock(), but that needs an explicit call.

Cheers!
robin


[1] https://github.com/jackaudio/jack1/blob/master/libjack/unlock.c