Experimental Physics and
Industrial Control System

Heinz Junkes <[email protected]> · Fri, 14 Jul 2017 08:45:15 +0200

A “new” epicsShareFunc has been added in 3.16 ( maybe already in 3.15 ) to posix/osdThread.c

epicsShareFunc int epicsThreadGetPosixPriority(epicsThreadId pthreadInfo)
{
#if defined(_POSIX_THREAD_PRIORITY_SCHEDULING) && _POSIX_THREAD_PRIORITY_SCHEDULING > 0
    double maxPriority,minPriority,slope,oss;

    if(pcommonAttr->maxPriority==pcommonAttr->minPriority)
        return(pcommonAttr->maxPriority);
    maxPriority = (double)pcommonAttr->maxPriority;
    minPriority = (double)pcommonAttr->minPriority;
    slope = (maxPriority - minPriority)/100.0;
    oss = (double)pthreadInfo->osiPriority * slope + minPriority;
    return((int)oss);
#else
    return 0;
#endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */
}

The function is declared here

src/libCom/osi/os/Linux/osdThread.h:epicsShareFunc int epicsThreadGetPosixPriority(epicsThreadId id);
src/libCom/osi/os/posix/osdThread.h:epicsShareFunc int epicsThreadGetPosixPriority(epicsThreadId id);

The function is not called elsewhere but in osdThread.c itself.
Why not static to this file?

There is no “guard” in the function like in other similiar functions like

e.g.    assert(epicsThreadOnceCalled);

Heinz

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System