semmutex-win.cpp revision f0dd841cb99154da8ec0a31cae2f89044895a23f
/* $Id$ */
/** @file
* IPRT - Mutex Semaphores, Windows.
*/
/*
* Copyright (C) 2006-2009 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 *
*******************************************************************************/
#define LOG_GROUP RTLOGGROUP_SEMAPHORE
#include <Windows.h>
#include <iprt/semaphore.h>
#include <iprt/lockvalidator.h>
/*******************************************************************************
* Defined Constants And Macros *
*******************************************************************************/
/** Posix internal representation of a Mutex semaphore. */
struct RTSEMMUTEXINTERNAL
{
/** Magic value (RTSEMMUTEX_MAGIC). */
/** The mutex handle. */
#ifdef RTSEMMUTEX_STRICT
/** Lock validator record associated with this mutex. */
#endif
};
/* Undefine debug mappings. */
{
int rc;
/*
* Create the semaphore.
*/
if (hMtx)
{
if (pThis)
{
#ifdef RTSEMMUTEX_STRICT
RTLockValidatorInit(&pThis->ValidatorRec, NIL_RTLOCKVALIDATORCLASS, RTLOCKVALIDATOR_SUB_CLASS_NONE, NULL, pThis);
#endif
return VINF_SUCCESS;
}
rc = VERR_NO_MEMORY;
}
else
return rc;
}
{
/*
* Validate.
*/
if (pThis == NIL_RTSEMMUTEX)
return VINF_SUCCESS;
/*
* Close semaphore handle.
*/
AssertReturn(ASMAtomicCmpXchgU32(&pThis->u32Magic, RTSEMMUTEX_MAGIC_DEAD, RTSEMMUTEX_MAGIC), VERR_INVALID_HANDLE);
int rc = VINF_SUCCESS;
if (!CloseHandle(hMtx))
{
}
#ifdef RTSEMMUTEX_STRICT
#endif
return rc;
}
/**
* Internal worker for RTSemMutexRequestNoResume and it's debug companion.
*
* @returns Same as RTSEmMutexRequestNoResume
* @param MutexSem The mutex handle.
* @param cMillies The number of milliseconds to wait.
* @param TSEMMUTEX_STRICT_POS_DECL The source position of the caller.
*/
DECL_FORCE_INLINE(int) rtSemMutexRequestNoResume(RTSEMMUTEX MutexSem, unsigned cMillies, RTSEMMUTEX_STRICT_POS_DECL)
{
/*
* Validate.
*/
#ifdef RTSEMMUTEX_STRICT
#else
#endif
/*
* Lock mutex semaphore.
*/
if (cMillies > 0)
TRUE /*bAlertable*/);
switch (rc)
{
case WAIT_OBJECT_0:
#ifdef RTSEMMUTEX_STRICT
RTLockValidatorWriteLockInc(RTLockValidatorSetOwner(&pThis->ValidatorRec, hThreadSelf, RTSEMMUTEX_STRICT_POS_ARGS));
#endif
return VINF_SUCCESS;
case WAIT_TIMEOUT: return VERR_TIMEOUT;
case WAIT_IO_COMPLETION: return VERR_INTERRUPTED;
case WAIT_ABANDONED: return VERR_SEM_OWNER_DIED;
default:
{
if (rc2 != 0)
return rc2;
return VERR_INTERNAL_ERROR;
}
}
}
{
#ifndef RTSEMMUTEX_STRICT
#else
return RTSemMutexRequestNoResumeDebug(MutexSem, cMillies, (uintptr_t)ASMReturnAddress(), RT_SRC_POS);
#endif
}
RTDECL(int) RTSemMutexRequestNoResumeDebug(RTSEMMUTEX MutexSem, unsigned cMillies, RTHCUINTPTR uId, RT_SRC_POS_DECL)
{
#ifdef RTSEMMUTEX_STRICT
#else
#endif
}
{
/*
* Validate.
*/
/*
* Unlock mutex semaphore.
*/
#ifdef RTSEMMUTEX_STRICT
else
#endif
return VINF_SUCCESS;
return rc;
}