/* $Id$ */
/** @file
* IPRT - Multiple Release Event Semaphore, Windows.
*
* @remarks This file is identical to semevent-win.cpp except for the 2nd
* CreateEvent parameter, the reset function and the "Multi" infix.
*/
/*
* Copyright (C) 2006-2010 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.
*/
/*******************************************************************************
* Header Files *
*******************************************************************************/
#include <Windows.h>
#include <iprt/semaphore.h>
#include <iprt/lockvalidator.h>
/*******************************************************************************
* Defined Constants And Macros *
*******************************************************************************/
struct RTSEMEVENTMULTIINTERNAL
{
/** Magic value (RTSEMEVENTMULTI_MAGIC). */
/** The event handle. */
#ifdef RTSEMEVENT_STRICT
/** Signallers. */
/** Indicates that lock validation should be performed. */
bool volatile fEverHadSignallers;
#endif
};
{
}
RTDECL(int) RTSemEventMultiCreateEx(PRTSEMEVENTMULTI phEventMultiSem, uint32_t fFlags, RTLOCKVALCLASS hClass,
const char *pszNameFmt, ...)
{
struct RTSEMEVENTMULTIINTERNAL *pThis = (struct RTSEMEVENTMULTIINTERNAL *)RTMemAlloc(sizeof(*pThis));
if (!pThis)
return VERR_NO_MEMORY;
/*
* Create the semaphore.
* (Manual reset, not signaled, private event object.)
*/
{
#ifdef RTSEMEVENT_STRICT
if (!pszNameFmt)
{
}
else
{
pszNameFmt, va);
}
pThis->fEverHadSignallers = false;
#endif
*phEventMultiSem = pThis;
return VINF_SUCCESS;
}
return RTErrConvertFromWin32(dwErr);
}
{
return VINF_SUCCESS;
/*
* Invalidate the handle and close the semaphore.
*/
AssertReturn(ASMAtomicCmpXchgU32(&pThis->u32Magic, ~RTSEMEVENTMULTI_MAGIC, RTSEMEVENTMULTI_MAGIC), VERR_INVALID_HANDLE);
{
#ifdef RTSEMEVENT_STRICT
#endif
}
else
{
/* Leak it. */
}
return rc;
}
{
/*
* Validate input.
*/
#ifdef RTSEMEVENT_STRICT
if (pThis->fEverHadSignallers)
{
if (RT_FAILURE(rc9))
return rc9;
}
#endif
/*
* Signal the object.
*/
return VINF_SUCCESS;
return RTErrConvertFromWin32(dwErr);
}
{
/*
* Validate input.
*/
/*
* Reset the object.
*/
return VINF_SUCCESS;
return RTErrConvertFromWin32(dwErr);
}
/** Goto avoidance. */
DECL_FORCE_INLINE(int)
{
switch (rc)
{
case WAIT_OBJECT_0: return VINF_SUCCESS;
case WAIT_TIMEOUT: return VERR_TIMEOUT;
case WAIT_ABANDONED: return VERR_SEM_OWNER_DIED;
default:
case WAIT_FAILED:
{
AssertMsgFailed(("Wait on hEventMultiSem %p failed, rc=%d lasterr=%d\n", pThis, rc, GetLastError()));
if (rc2)
return rc2;
return VERR_INTERNAL_ERROR;
}
}
}
DECLINLINE(int) rtSemEventMultiWinWait(RTSEMEVENTMULTI hEventMultiSem, uint32_t fFlags, uint64_t uTimeout,
{
/*
* Validate input.
*/
/*
* Convert the timeout to a millisecond count.
*/
if (fFlags & RTSEMWAIT_FLAGS_INDEFINITE)
{
}
else
{
if (fFlags & RTSEMWAIT_FLAGS_NANOSECS)
if (fFlags & RTSEMWAIT_FLAGS_ABSOLUTE)
{
else
uTimeout = 0;
}
else if (fFlags & RTSEMWAIT_FLAGS_RESUME)
else
: INFINITE;
}
/*
* Do the wait.
*/
#ifdef RTSEMEVENT_STRICT
if (pThis->fEverHadSignallers)
{
do
dwMsTimeout, RTTHREADSTATE_EVENT_MULTI, true);
if (RT_FAILURE(rc9))
return rc9;
}
#else
#endif
{
while ( rc == WAIT_IO_COMPLETION
&& RTTimeSystemMilliTS() < uAbsDeadline)
}
}
RTDECL(int) RTSemEventMultiWaitEx(RTSEMEVENTMULTI hEventMultiSem, uint32_t fFlags, uint64_t uTimeout)
{
#ifndef RTSEMEVENT_STRICT
#else
#endif
}
RTDECL(int) RTSemEventMultiWaitExDebug(RTSEMEVENTMULTI hEventMultiSem, uint32_t fFlags, uint64_t uTimeout,
{
}
{
#ifdef RTSEMEVENT_STRICT
#endif
}
{
#ifdef RTSEMEVENT_STRICT
#endif
}
{
#ifdef RTSEMEVENT_STRICT
#endif
}