kernellib.c

xenomai 很好的linux实时补丁

/*
 * Copyright (C) 2001,2002 IDEALX (http://www.idealx.com/).
 * Written by Gilles Chanteperdrix <[e-mail]>.
 * Copyright (C) 2003 Philippe Gerum <[e-mail]>.
 *
 * Xenomai is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Xenomai is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Xenomai; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#include <vxworks/defs.h>

STATUS kernelTimeSlice (int ticks)
{
    spl_t s;

    if(ticks < 0)
        return ERROR;

    xnlock_get_irqsave(&nklock, s);
    wind_set_rrperiod((xnticks_t) ticks);
    
    if(ticks > 0)
        xnpod_activate_rr(ticks);
    else
        xnpod_deactivate_rr();

    xnlock_put_irqrestore(&nklock, s);

    return OK;
}


const char *kernelVersion (void)
{
    return "VxWorks/VM version " VXWORKS_SKIN_VERSION_STRING;
}