thread-r0drv-linux.c revision 8d5e5851907f964d35bc57646112f73a6f4219c8
/* $Id$ */
/** @file
* IPRT - Threads, Ring-0 Driver, Linux.
*/
/*
* Copyright (C) 2006-2007 Sun Microsystems, Inc.
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* The contents of this file may alternatively be used under the terms
* of the Common Development and Distribution License Version 1.0
* (CDDL) only, as it comes in the "COPYING.CDDL" file of the
* VirtualBox OSE distribution, in which case the provisions of the
* CDDL are applicable instead of those of the GPL.
*
* You may elect to license modified versions of this file under the
* terms and conditions of either the GPL or the CDDL or both.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 USA or visit http://www.sun.com if you need
* additional information or have any questions.
*/
/*******************************************************************************
* Header Files *
*******************************************************************************/
#include "the-linux-kernel.h"
{
return (RTNATIVETHREAD)current;
}
{
if (!cJiffies)
return VINF_SUCCESS;
return VERR_INTERRUPTED;
}
RTDECL(bool) RTThreadYield(void)
{
yield();
#else
schedule();
#endif
return true;
}
{
return !in_atomic() && !irqs_disabled();
}
{
return need_resched();
return current->need_resched != 0;
#else
return need_resched != 0;
#endif
}
{
/*
* Note: This call is a NOP if CONFIG_PREEMPT is not enabled in the Linux kernel
* configuration. In that case, schedule() is only called need_resched() is set
* which is tested just before we return to R3 (not when returning from R0 to R0).
*/
}
{
}