1 | /* $Id: thread-r0drv-linux.c 8245 2008-04-21 17:24:28Z vboxsync $ */
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2 | /** @file
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3 | * IPRT - Threads, Ring-0 Driver, Linux.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2006-2007 Sun Microsystems, Inc.
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8 | *
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9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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10 | * available from http://www.virtualbox.org. This file is free software;
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11 | * you can redistribute it and/or modify it under the terms of the GNU
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12 | * General Public License (GPL) as published by the Free Software
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13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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16 | *
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17 | * The contents of this file may alternatively be used under the terms
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18 | * of the Common Development and Distribution License Version 1.0
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19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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20 | * VirtualBox OSE distribution, in which case the provisions of the
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21 | * CDDL are applicable instead of those of the GPL.
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22 | *
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23 | * You may elect to license modified versions of this file under the
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24 | * terms and conditions of either the GPL or the CDDL or both.
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25 | *
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26 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
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27 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
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28 | * additional information or have any questions.
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29 | */
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30 |
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31 | /*******************************************************************************
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32 | * Header Files *
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33 | *******************************************************************************/
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34 | #include "the-linux-kernel.h"
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35 |
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36 | #include <iprt/thread.h>
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37 | #include <iprt/err.h>
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38 |
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39 |
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40 | RTDECL(RTNATIVETHREAD) RTThreadNativeSelf(void)
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41 | {
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42 | return (RTNATIVETHREAD)current;
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43 | }
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44 |
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45 |
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46 | RTDECL(int) RTThreadSleep(unsigned cMillies)
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47 | {
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48 | long cJiffies = msecs_to_jiffies(cMillies);
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49 | set_current_state(TASK_INTERRUPTIBLE);
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50 | cJiffies = schedule_timeout(cJiffies);
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51 | if (!cJiffies)
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52 | return VINF_SUCCESS;
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53 | return VERR_INTERRUPTED;
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54 | }
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55 |
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56 |
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57 | RTDECL(bool) RTThreadYield(void)
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58 | {
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59 | #if LINUX_VERSION_CODE >= KERNEL_VERSION(2, 4, 20)
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60 | yield();
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61 | #else
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62 | set_current_state(TASK_RUNNING);
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63 | sys_sched_yield();
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64 | schedule();
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65 | #endif
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66 | return true;
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67 | }
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68 |
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