r3/win/semevent-win.cpp

	semevent-win.cpp revision a1e3db9f69723048cb20f6bc815ec5fb706d8705
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync/* $Id$ */
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync/** @file
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync * IPRT - Event Sempahore, Windows.
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync */
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync/*
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync * Copyright (C) 2006-2009 Sun Microsystems, Inc.
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync *
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync * available from http://www.virtualbox.org. This file is free software;
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync * you can redistribute it and/or modify it under the terms of the GNU
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync * General Public License (GPL) as published by the Free Software
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync *
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync * The contents of this file may alternatively be used under the terms
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync * of the Common Development and Distribution License Version 1.0
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync * VirtualBox OSE distribution, in which case the provisions of the
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync * CDDL are applicable instead of those of the GPL.
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync *
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync * You may elect to license modified versions of this file under the
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync * terms and conditions of either the GPL or the CDDL or both.
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync *
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync * Clara, CA 95054 USA or visit http://www.sun.com if you need
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync * additional information or have any questions.
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync */
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync/*******************************************************************************
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync*   Header Files                                                               *
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync*******************************************************************************/
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync#define LOG_GROUP RTLOGGROUP_SEMAPHORE
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync#include <Windows.h>
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync#include <iprt/semaphore.h>
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#include "internal/iprt.h"
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#include <iprt/asm.h>
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync#include <iprt/assert.h>
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync#include <iprt/err.h>
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#include <iprt/lockvalidator.h>
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#include <iprt/mem.h>
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#include <iprt/thread.h>
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#include "internal/magics.h"
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync#include "internal/strict.h"
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync/*******************************************************************************
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync*   Defined Constants And Macros                                               *
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync*******************************************************************************/
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsyncstruct RTSEMEVENTINTERNAL
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync{
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    /** Magic value (RTSEMEVENT_MAGIC). */
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    uint32_t            u32Magic;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    /** The event handle. */
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    HANDLE              hev;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#ifdef RTSEMEVENT_STRICT
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    /** Signallers. */
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    RTLOCKVALRECSHRD    Signallers;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    /** Indicates that lock validation should be performed. */
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    bool volatile       fEverHadSignallers;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#endif
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync};
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync/* Undefine debug mappings. */
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync#undef RTSemEventWait
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync#undef RTSemEventWaitNoResume
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsyncRTDECL(int)   RTSemEventCreate(PRTSEMEVENT pEventSem)
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync{
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    struct RTSEMEVENTINTERNAL *pThis = (struct RTSEMEVENTINTERNAL *)RTMemAlloc(sizeof(*pThis));
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    if (!pThis)
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync        return VERR_NO_MEMORY;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync    /*
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync     * Create the semaphore.
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync     * (Auto reset, not signaled, private event object.)
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync     */
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    pThis->hev = CreateEvent(NULL, FALSE, FALSE, NULL);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    if (pThis->hev != NULL) /* not INVALID_HANDLE_VALUE */
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync    {
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync        pThis->u32Magic = RTSEMEVENT_MAGIC;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#ifdef RTSEMEVENT_STRICT
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync        RTLockValidatorRecSharedInit(&pThis->Signallers,
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync                                     NIL_RTLOCKVALIDATORCLASS, RTLOCKVALIDATOR_SUB_CLASS_ANY,
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync                                     "RTSemEvent", pThis, true /*fSignaller*/);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync        pThis->fEverHadSignallers = false;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#endif
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync        *pEventSem = pThis;
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync        return VINF_SUCCESS;
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync    }
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    DWORD dwErr = GetLastError();
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    RTMemFree(pThis);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    return RTErrConvertFromWin32(dwErr);
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync}
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsyncRTDECL(int)   RTSemEventDestroy(RTSEMEVENT EventSem)
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync{
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    struct RTSEMEVENTINTERNAL *pThis = EventSem;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    if (pThis == NIL_RTSEMEVENT)        /* don't bitch */
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync        return VERR_INVALID_HANDLE;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    AssertReturn(pThis->u32Magic == RTSEMEVENT_MAGIC, VERR_INVALID_HANDLE);
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync    /*
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync     * Invalidate the handle and close the semaphore.
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync     */
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    int rc = VINF_SUCCESS;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    AssertReturn(ASMAtomicCmpXchgU32(&pThis->u32Magic, ~RTSEMEVENT_MAGIC, RTSEMEVENT_MAGIC), VERR_INVALID_HANDLE);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    if (CloseHandle(pThis->hev))
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    {
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#ifdef RTSEMEVENT_STRICT
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync        RTLockValidatorRecSharedDelete(&pThis->Signallers);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#endif
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync        RTMemFree(pThis);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    }
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    else
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    {
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync        DWORD dwErr = GetLastError();
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync        rc = RTErrConvertFromWin32(dwErr);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync        AssertMsgFailed(("Destroy EventSem %p failed, lasterr=%u (%Rrc)\n", pThis, dwErr, rc));
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync        /* Leak it. */
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    }
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    return rc;
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync}
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsyncRTDECL(int)   RTSemEventWaitNoResume(RTSEMEVENT EventSem, unsigned cMillies)
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync{
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    PCRTLOCKVALSRCPOS pSrcPos = NULL;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    /*
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync     * Validate input.
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync     */
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    struct RTSEMEVENTINTERNAL *pThis = EventSem;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    AssertReturn(pThis->u32Magic == RTSEMEVENT_MAGIC, VERR_INVALID_HANDLE);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync    /*
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync     * Wait for condition.
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync     */
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#ifdef RTSEMEVENT_STRICT
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    RTTHREAD hThreadSelf = RTThreadSelfAutoAdopt();
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    if (pThis->fEverHadSignallers)
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    {
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync        int rc9 = RTLockValidatorRecSharedCheckBlocking(&pThis->Signallers, hThreadSelf, pSrcPos, false,
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync                                                        RTTHREADSTATE_EVENT, true);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync        if (RT_FAILURE(rc9))
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync            return rc9;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    }
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#else
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    RTTHREAD hThreadSelf = RTThreadSelf();
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#endif
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    RTThreadBlocking(hThreadSelf, RTTHREADSTATE_EVENT, true);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    DWORD rc = WaitForSingleObjectEx(pThis->hev,
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync                                     cMillies == RT_INDEFINITE_WAIT ? INFINITE : cMillies,
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync                                     TRUE /*fAlertable*/);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    RTThreadUnblocked(hThreadSelf, RTTHREADSTATE_EVENT);
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync    switch (rc)
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync    {
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync        case WAIT_OBJECT_0:         return VINF_SUCCESS;
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync        case WAIT_TIMEOUT:          return VERR_TIMEOUT;
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync        case WAIT_IO_COMPLETION:    return VERR_INTERRUPTED;
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync        case WAIT_ABANDONED:        return VERR_SEM_OWNER_DIED;
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync        default:
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync            AssertMsgFailed(("%u\n", rc));
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync        case WAIT_FAILED:
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync        {
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync            AssertMsgFailed(("Wait on EventSem %p failed, rc=%d lasterr=%d\n", EventSem, rc, GetLastError()));
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync            int rc2 = RTErrConvertFromWin32(GetLastError());
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync            if (rc2)
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync                return rc2;
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync            AssertMsgFailed(("WaitForSingleObject(event) -> rc=%d while converted lasterr=%d\n", rc, rc2));
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync            return VERR_INTERNAL_ERROR;
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync        }
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync    }
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync}
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsyncRTDECL(int)  RTSemEventSignal(RTSEMEVENT EventSem)
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync{
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    /*
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync     * Validate input.
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync     */
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    struct RTSEMEVENTINTERNAL *pThis = EventSem;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    AssertReturn(pThis->u32Magic == RTSEMEVENT_MAGIC, VERR_INVALID_HANDLE);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#ifdef RTSEMEVENT_STRICT
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    if (pThis->fEverHadSignallers)
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    {
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync        int rc9 = RTLockValidatorRecSharedCheckSignaller(&pThis->Signallers, NIL_RTTHREAD);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync        if (RT_FAILURE(rc9))
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync            return rc9;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    }
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#endif
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync    /*
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync     * Signal the object.
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync     */
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    if (SetEvent(pThis->hev))
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync        return VINF_SUCCESS;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    DWORD dwErr = GetLastError();
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    AssertMsgFailed(("Signaling EventSem %p failed, lasterr=%d\n", pThis, dwErr));
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    return RTErrConvertFromWin32(dwErr);
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync}
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
0fcf82b2591711fa8980e8f5d9cad1b8f222d6d7vboxsync
0fcf82b2591711fa8980e8f5d9cad1b8f222d6d7vboxsyncRTDECL(void) RTSemEventSetSignaller(RTSEMEVENT hEventSem, RTTHREAD hThread)
0fcf82b2591711fa8980e8f5d9cad1b8f222d6d7vboxsync{
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#ifdef RTSEMEVENT_STRICT
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    struct RTSEMEVENTINTERNAL *pThis = hEventSem;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    AssertPtrReturnVoid(pThis);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    AssertReturnVoid(pThis->u32Magic == RTSEMEVENT_MAGIC);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    ASMAtomicWriteBool(&pThis->fEverHadSignallers, true);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    RTLockValidatorRecSharedResetOwner(&pThis->Signallers, hThread, NULL);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#endif
0fcf82b2591711fa8980e8f5d9cad1b8f222d6d7vboxsync}
0fcf82b2591711fa8980e8f5d9cad1b8f222d6d7vboxsync
0fcf82b2591711fa8980e8f5d9cad1b8f222d6d7vboxsync
0fcf82b2591711fa8980e8f5d9cad1b8f222d6d7vboxsyncRTDECL(void) RTSemEventAddSignaller(RTSEMEVENT hEventSem, RTTHREAD hThread)
0fcf82b2591711fa8980e8f5d9cad1b8f222d6d7vboxsync{
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#ifdef RTSEMEVENT_STRICT
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    struct RTSEMEVENTINTERNAL *pThis = hEventSem;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    AssertPtrReturnVoid(pThis);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    AssertReturnVoid(pThis->u32Magic == RTSEMEVENT_MAGIC);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    ASMAtomicWriteBool(&pThis->fEverHadSignallers, true);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    RTLockValidatorRecSharedAddOwner(&pThis->Signallers, hThread, NULL);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#endif
0fcf82b2591711fa8980e8f5d9cad1b8f222d6d7vboxsync}
0fcf82b2591711fa8980e8f5d9cad1b8f222d6d7vboxsync
0fcf82b2591711fa8980e8f5d9cad1b8f222d6d7vboxsync
333e7ab9cd83b32080826d06ac7b1951c684ccb5vboxsyncRTDECL(void) RTSemEventRemoveSignaller(RTSEMEVENT hEventSem, RTTHREAD hThread)
0fcf82b2591711fa8980e8f5d9cad1b8f222d6d7vboxsync{
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#ifdef RTSEMEVENT_STRICT
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    struct RTSEMEVENTINTERNAL *pThis = hEventSem;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    AssertPtrReturnVoid(pThis);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    AssertReturnVoid(pThis->u32Magic == RTSEMEVENT_MAGIC);
0fcf82b2591711fa8980e8f5d9cad1b8f222d6d7vboxsync
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    RTLockValidatorRecSharedRemoveOwner(&pThis->Signallers, hThread);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#endif
0fcf82b2591711fa8980e8f5d9cad1b8f222d6d7vboxsync}
0fcf82b2591711fa8980e8f5d9cad1b8f222d6d7vboxsync