/* _schedPxLib.c - kernel support for the POSIX scheduling library *//* Copyright 1984-2000 Wind River Systems, Inc. */#include "copyright_wrs.h"/*modification history--------------------01a,12sep00,jgn  written*//*DESCRIPTION: Provides support routines for the POSIX scheduler library that can be accessedfrom outside the kernel (to cope with deficiencies in the core kernel API).*//* INCLUDES */#include "vxWorks.h"/* externs */extern BOOL	roundRobinOn;		/* round robin enabled? */extern ULONG	roundRobinSlice;	/* period if it is *//********************************************************************************* _schedPxKernelIsTimeSlicing - return current state of timeslicing & period** This routine allows tasks to determine the current state of time slicing in* the system, including the current period if time slicing is enabled. The* parameter <pPeriod> may be passed as NULL if this information is not* required. The value stored in <pPeriod> is only valid if the function* returns TRUE.** RETURNS: TRUE if time slicing enabled, FALSE otherwise. Also returns current* time slice period via <pPeriod> if it is non-NULL and time slicing is enabled.** SEE ALSO: kernelTimeSlice()** NOMANUAL*/ BOOL _schedPxKernelIsTimeSlicing    (    ULONG *	pPeriod                 /* place to store period, or NULL */    )    {    if ((roundRobinOn) && (pPeriod != NULL))        {        *pPeriod = roundRobinSlice;        }     return roundRobinOn;    }