handletable.cpp revision 8e2e6c9f8f2157e3ec6599f87343bdc453734c4c
/* $Id$ */
/** @file
* IPRT - Handle Tables.
*/
/*
* Copyright (C) 2008 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 <iprt/handletable.h>
#include <iprt/spinlock.h>
#include "handletable.h"
RTDECL(int) RTHandleTableCreateEx(PRTHANDLETABLE phHandleTable, uint32_t fFlags, uint32_t uBase, uint32_t cMax,
{
/*
* Validate input.
*/
/*
* Adjust the cMax value so it is a multiple of the 2nd level tables.
*/
/*
* Allocate the structure, include the 1st level lookup table
* if it's below the threshold size.
*/
cb = sizeof(RTHANDLETABLEINT);
if (!pThis)
return VERR_NO_MEMORY;
/*
* Initialize it.
*/
else
pThis->cCurAllocated = 0;
if (fFlags & RTHANDLETABLE_FLAGS_LOCKED)
{
if (RT_FAILURE(rc))
{
return rc;
}
}
*phHandleTable = pThis;
return VINF_SUCCESS;
}
{
}
RTDECL(int) RTHandleTableDestroy(RTHANDLETABLE hHandleTable, PFNRTHANDLETABLEDELETE pfnDelete, void *pvUser)
{
uint32_t i;
/*
* Validate input, quitely ignore the NIL handle.
*/
if (hHandleTable == NIL_RTHANDLETABLE)
return VINF_SUCCESS;
/*
* Mark the thing as invalid / deleted.
* Then kill the lock.
*/
{
}
if (pfnDelete)
{
/*
* Walk all the tables looking for used handles.
*/
{
{
if (paTable)
for (i = 0; i < RTHT_LEVEL2_ENTRIES; i++)
{
cLeft--;
}
}
}
else
{
{
if (paTable)
for (i = 0; i < RTHT_LEVEL2_ENTRIES; i++)
{
cLeft--;
}
}
}
}
/*
* Free the memory.
*/
{
}
return VINF_SUCCESS;
}