Experimental Physics and
Industrial Control System

mdavidsaver via Core-talk <core-talk at aps.anl.gov> · Mon, 23 Nov 2020 15:42:31 -0000

I see in posix/osdMutex.c that

> /* Until these can be demonstrated to work leave them undefined*/
> /* On solaris 8 _POSIX_THREAD_PRIO_INHERIT fails*/
> #undef _POSIX_THREAD_PROCESS_SHARED
> #undef _POSIX_THREAD_PRIO_INHERIT

has been present since 2002.  I would naively think that the various sites using RTLinux flavors which have noticed quickly if epicsMutex didn't have priority inheritance.

Can Dirk (or anyone) give some background on why this change is being proposed now?

Also, some significant complexity is being added in the !HAVE_RECURSIVE_MUTEX case.  Is this implementation actually used by any currently supported targets?

-- 
https://code.launchpad.net/~dirk.zimoch/epics-base/+git/epics-base/+merge/394327
Your team EPICS Core Developers is requested to review the proposed merge of ~dirk.zimoch/epics-base:epicsMutexPriorityInheritance into epics-base:7.0.

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System