semevent-win.cpp revision a734bb626f889ee3334bfc381be194b4ec56aae6
/* $Id$ */
/** @file
* IPRT - Event Sempahore, Windows.
*/
/*
* Copyright (C) 2006-2010 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 *
*******************************************************************************/
struct RTSEMEVENTINTERNAL
{
/** Magic value (RTSEMEVENT_MAGIC). */
/** The event handle. */
#ifdef RTSEMEVENT_STRICT
/** Signallers. */
/** Indicates that lock validation should be performed. */
bool volatile fEverHadSignallers;
#endif
};
{
}
RTDECL(int) RTSemEventCreateEx(PRTSEMEVENT phEventSem, uint32_t fFlags, RTLOCKVALCLASS hClass, const char *pszNameFmt, ...)
{
if (!pThis)
return VERR_NO_MEMORY;
/*
* Create the semaphore.
* (Auto reset, not signaled, private event object.)
*/
{
#ifdef RTSEMEVENT_STRICT
pszNameFmt, va);
pThis->fEverHadSignallers = false;
#endif
*phEventSem = pThis;
return VINF_SUCCESS;
}
return RTErrConvertFromWin32(dwErr);
}
{
if (pThis == NIL_RTSEMEVENT)
return VINF_SUCCESS;
/*
* Invalidate the handle and close the semaphore.
*/
int rc = VINF_SUCCESS;
AssertReturn(ASMAtomicCmpXchgU32(&pThis->u32Magic, ~RTSEMEVENT_MAGIC, RTSEMEVENT_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);
}
/** Goto avoidance. */
{
switch (rc)
{
case WAIT_OBJECT_0: 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:
case WAIT_FAILED:
{
if (rc2)
return rc2;
return VERR_INTERNAL_ERROR;
}
}
}
{
/*
* Validate input.
*/
/*
* Wait for condition.
*/
#ifdef RTSEMEVENT_STRICT
if (pThis->fEverHadSignallers)
{
0 /*Timeout*/,
TRUE /*fAlertable*/);
cMillies, RTTHREADSTATE_EVENT, true);
if (RT_FAILURE(rc9))
return rc9;
}
#else
#endif
TRUE /*fAlertable*/);
}
{
#ifdef RTSEMEVENT_STRICT
#endif
}
{
#ifdef RTSEMEVENT_STRICT
#endif
}
{
#ifdef RTSEMEVENT_STRICT
#endif
}