thread-r0drv-nt.cpp revision f4db180328f833f9fc9cb07a1a4a0bc948a47afe
/* $Id$ */
/** @file
* InnoTek Portable Runtime - Threads, Ring-0 Driver, NT.
*/
/*
* Copyright (C) 2006 InnoTek Systemberatung GmbH
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file 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,
* 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.
*
* If you received this file as part of a commercial VirtualBox
* distribution, then only the terms of your commercial VirtualBox
* license agreement apply instead of the previous paragraph.
*/
/*******************************************************************************
* Header Files *
*******************************************************************************/
#include "the-nt-kernel.h"
#include <iprt/thread.h>
#include <iprt/err.h>
__BEGIN_DECLS
NTSTATUS NTAPI ZwYieldExecution(void);
__END_DECLS
RTDECL(RTNATIVETHREAD) RTThreadNativeSelf(void)
{
return (RTNATIVETHREAD)PsGetCurrentThread();
}
RTDECL(int) RTThreadSleep(unsigned cMillies)
{
LARGE_INTEGER Interval;
Interval.QuadPart = -(int64_t)cMillies * 10000;
NTSTATUS rcNt = KeDelayExecutionThread(KernelMode, TRUE, &Interval);
switch (rcNt)
{
case STATUS_SUCCESS:
return VINF_SUCCESS;
case STATUS_ALERTED:
case STATUS_USER_APC:
return VERR_INTERRUPTED;
default:
return RTErrConvertFromNtStatus(rcNt);
}
}
RTDECL(bool) RTThreadYield(void)
{
return ZwYieldExecution() != STATUS_NO_YIELD_PERFORMED;
}