vmcpuset.h revision e6e8fc31be238a3370495a3e4fb69dbf41cfffb9
/** @file
* VirtualBox - VMCPUSET Operation.
*/
/*
* Copyright (C) 2006-2015 Oracle Corporation
*
* 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.
*/
#ifndef ___VBox_vmm_vmcpuset_h
#define ___VBox_vmm_vmcpuset_h
/** @defgroup grp_vmcpuset VMCPUSET Operations
* @ingroup grp_types_both
* @sa VMCPUSET
* @{
*/
/** Tests if a valid CPU ID is present in the set.. */
/** Adds a CPU to the set. */
/** Deletes a CPU from the set. */
/** Adds a CPU to the set, atomically. */
/** Deletes a CPU from the set, atomically. */
/** Empties the set. */
/** Fills the set. */
/** Checks if two sets are equal to one another. */
#define VMCPUSET_IS_EQUAL(pSet1, pSet2) (memcmp(&(pSet1)->au32Bitmap[0], &(pSet2)->au32Bitmap[0], sizeof((pSet1)->au32Bitmap)) == 0)
/** Checks if the set is empty. */
)
/** Finds the first CPU present in the SET.
* @returns CPU index if found, NIL_VMCPUID if not. */
/** Implements VMCPUSET_FIND_FIRST_PRESENT.
*
* @returns CPU index of the first CPU present in the set, NIL_VMCPUID if none
* are present.
* @param pSet The set to scan.
*/
{
return i >= 0 ? (VMCPUID)i : NIL_VMCPUID;
}
/** Finds the first CPU present in the SET.
* @returns CPU index if found, NIL_VMCPUID if not. */
/** Implements VMCPUSET_FIND_LAST_PRESENT.
*
* @returns CPU index of the last CPU present in the set, NIL_VMCPUID if none
* are present.
* @param pSet The set to scan.
*/
{
while (i-- > 0)
{
if (u)
{
u = ASMBitLastSetU32(u);
u--;
u |= i << 5;
return u;
}
}
return NIL_VMCPUID;
}
/** @} */
#endif