r3/win/semeventmulti-win.cpp

5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync/* $Id$ */
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync/** @file
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync * IPRT - Multiple Release Event Semaphore, Windows.
d05e58c15346e272284b3db3adae55a8fb8977davboxsync *
d05e58c15346e272284b3db3adae55a8fb8977davboxsync * @remarks This file is identical to semevent-win.cpp except for the 2nd
d05e58c15346e272284b3db3adae55a8fb8977davboxsync *          CreateEvent parameter, the reset function and the "Multi" infix.
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync */
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync/*
e64031e20c39650a7bc902a3e1aba613b9415deevboxsync * Copyright (C) 2006-2010 Oracle Corporation
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
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync/*******************************************************************************
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync*   Header Files                                                               *
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync*******************************************************************************/
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync#define LOG_GROUP RTLOGGROUP_SEMAPHORE
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync#include <Windows.h>
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync#include <iprt/semaphore.h>
d05e58c15346e272284b3db3adae55a8fb8977davboxsync#include "internal/iprt.h"
d05e58c15346e272284b3db3adae55a8fb8977davboxsync
d05e58c15346e272284b3db3adae55a8fb8977davboxsync#include <iprt/asm.h>
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync#include <iprt/assert.h>
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync#include <iprt/err.h>
d05e58c15346e272284b3db3adae55a8fb8977davboxsync#include <iprt/lockvalidator.h>
d05e58c15346e272284b3db3adae55a8fb8977davboxsync#include <iprt/mem.h>
d05e58c15346e272284b3db3adae55a8fb8977davboxsync#include <iprt/thread.h>
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync#include <iprt/time.h>
d05e58c15346e272284b3db3adae55a8fb8977davboxsync#include "internal/magics.h"
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync#include "internal/strict.h"
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync/*******************************************************************************
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync*   Defined Constants And Macros                                               *
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync*******************************************************************************/
d05e58c15346e272284b3db3adae55a8fb8977davboxsyncstruct RTSEMEVENTMULTIINTERNAL
d05e58c15346e272284b3db3adae55a8fb8977davboxsync{
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    /** Magic value (RTSEMEVENTMULTI_MAGIC). */
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    uint32_t            u32Magic;
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    /** The event handle. */
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    HANDLE              hev;
d05e58c15346e272284b3db3adae55a8fb8977davboxsync#ifdef RTSEMEVENT_STRICT
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    /** Signallers. */
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    RTLOCKVALRECSHRD    Signallers;
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    /** Indicates that lock validation should be performed. */
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    bool volatile       fEverHadSignallers;
d05e58c15346e272284b3db3adae55a8fb8977davboxsync#endif
d05e58c15346e272284b3db3adae55a8fb8977davboxsync};
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
ab93606043a9881487aa83be04191d2f4ea24071vboxsync
ab93606043a9881487aa83be04191d2f4ea24071vboxsyncRTDECL(int)  RTSemEventMultiCreate(PRTSEMEVENTMULTI phEventMultiSem)
ab93606043a9881487aa83be04191d2f4ea24071vboxsync{
ab93606043a9881487aa83be04191d2f4ea24071vboxsync    return RTSemEventMultiCreateEx(phEventMultiSem, 0 /*fFlags*/, NIL_RTLOCKVALCLASS, NULL);
ab93606043a9881487aa83be04191d2f4ea24071vboxsync}
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
ab93606043a9881487aa83be04191d2f4ea24071vboxsyncRTDECL(int)  RTSemEventMultiCreateEx(PRTSEMEVENTMULTI phEventMultiSem, uint32_t fFlags, RTLOCKVALCLASS hClass,
ab93606043a9881487aa83be04191d2f4ea24071vboxsync                                     const char *pszNameFmt, ...)
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync{
ab93606043a9881487aa83be04191d2f4ea24071vboxsync    AssertReturn(!(fFlags & ~RTSEMEVENTMULTI_FLAGS_NO_LOCK_VAL), VERR_INVALID_PARAMETER);
ab93606043a9881487aa83be04191d2f4ea24071vboxsync
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    struct RTSEMEVENTMULTIINTERNAL *pThis = (struct RTSEMEVENTMULTIINTERNAL *)RTMemAlloc(sizeof(*pThis));
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    if (!pThis)
d05e58c15346e272284b3db3adae55a8fb8977davboxsync        return VERR_NO_MEMORY;
d05e58c15346e272284b3db3adae55a8fb8977davboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync    /*
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync     * Create the semaphore.
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync     * (Manual reset, not signaled, private event object.)
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync     */
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    pThis->hev = CreateEvent(NULL, TRUE, FALSE, NULL);
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    if (pThis->hev != NULL) /* not INVALID_HANDLE_VALUE */
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync    {
d05e58c15346e272284b3db3adae55a8fb8977davboxsync        pThis->u32Magic = RTSEMEVENTMULTI_MAGIC;
d05e58c15346e272284b3db3adae55a8fb8977davboxsync#ifdef RTSEMEVENT_STRICT
2e42e0850e182e37277fe28ba5b5d1c37018e783vboxsync        if (!pszNameFmt)
2e42e0850e182e37277fe28ba5b5d1c37018e783vboxsync        {
2e42e0850e182e37277fe28ba5b5d1c37018e783vboxsync            static uint32_t volatile s_iSemEventMultiAnon = 0;
2e42e0850e182e37277fe28ba5b5d1c37018e783vboxsync            RTLockValidatorRecSharedInit(&pThis->Signallers, hClass, RTLOCKVAL_SUB_CLASS_ANY, pThis,
2e42e0850e182e37277fe28ba5b5d1c37018e783vboxsync                                         true /*fSignaller*/, !(fFlags & RTSEMEVENTMULTI_FLAGS_NO_LOCK_VAL),
2e42e0850e182e37277fe28ba5b5d1c37018e783vboxsync                                         "RTSemEventMulti-%u", ASMAtomicIncU32(&s_iSemEventMultiAnon) - 1);
2e42e0850e182e37277fe28ba5b5d1c37018e783vboxsync        }
2e42e0850e182e37277fe28ba5b5d1c37018e783vboxsync        else
2e42e0850e182e37277fe28ba5b5d1c37018e783vboxsync        {
2e42e0850e182e37277fe28ba5b5d1c37018e783vboxsync            va_list va;
2e42e0850e182e37277fe28ba5b5d1c37018e783vboxsync            va_start(va, pszNameFmt);
2e42e0850e182e37277fe28ba5b5d1c37018e783vboxsync            RTLockValidatorRecSharedInitV(&pThis->Signallers, hClass, RTLOCKVAL_SUB_CLASS_ANY, pThis,
2e42e0850e182e37277fe28ba5b5d1c37018e783vboxsync                                          true /*fSignaller*/, !(fFlags & RTSEMEVENTMULTI_FLAGS_NO_LOCK_VAL),
2e42e0850e182e37277fe28ba5b5d1c37018e783vboxsync                                          pszNameFmt, va);
2e42e0850e182e37277fe28ba5b5d1c37018e783vboxsync            va_end(va);
2e42e0850e182e37277fe28ba5b5d1c37018e783vboxsync        }
d05e58c15346e272284b3db3adae55a8fb8977davboxsync        pThis->fEverHadSignallers = false;
d05e58c15346e272284b3db3adae55a8fb8977davboxsync#endif
d05e58c15346e272284b3db3adae55a8fb8977davboxsync
ab93606043a9881487aa83be04191d2f4ea24071vboxsync        *phEventMultiSem = pThis;
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync        return VINF_SUCCESS;
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync    }
d05e58c15346e272284b3db3adae55a8fb8977davboxsync
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    DWORD dwErr = GetLastError();
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    RTMemFree(pThis);
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    return RTErrConvertFromWin32(dwErr);
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync}
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
ab93606043a9881487aa83be04191d2f4ea24071vboxsyncRTDECL(int)  RTSemEventMultiDestroy(RTSEMEVENTMULTI hEventMultiSem)
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync{
ab93606043a9881487aa83be04191d2f4ea24071vboxsync    struct RTSEMEVENTMULTIINTERNAL *pThis = hEventMultiSem;
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    if (pThis == NIL_RTSEMEVENT)        /* don't bitch */
ab93606043a9881487aa83be04191d2f4ea24071vboxsync        return VINF_SUCCESS;
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    AssertReturn(pThis->u32Magic == RTSEMEVENTMULTI_MAGIC, VERR_INVALID_HANDLE);
d05e58c15346e272284b3db3adae55a8fb8977davboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync    /*
d05e58c15346e272284b3db3adae55a8fb8977davboxsync     * Invalidate the handle and close the semaphore.
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync     */
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    int rc = VINF_SUCCESS;
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    AssertReturn(ASMAtomicCmpXchgU32(&pThis->u32Magic, ~RTSEMEVENTMULTI_MAGIC, RTSEMEVENTMULTI_MAGIC), VERR_INVALID_HANDLE);
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    if (CloseHandle(pThis->hev))
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    {
d05e58c15346e272284b3db3adae55a8fb8977davboxsync#ifdef RTSEMEVENT_STRICT
d05e58c15346e272284b3db3adae55a8fb8977davboxsync        RTLockValidatorRecSharedDelete(&pThis->Signallers);
d05e58c15346e272284b3db3adae55a8fb8977davboxsync#endif
d05e58c15346e272284b3db3adae55a8fb8977davboxsync        RTMemFree(pThis);
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    }
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    else
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    {
d05e58c15346e272284b3db3adae55a8fb8977davboxsync        DWORD dwErr = GetLastError();
d05e58c15346e272284b3db3adae55a8fb8977davboxsync        rc = RTErrConvertFromWin32(dwErr);
ab93606043a9881487aa83be04191d2f4ea24071vboxsync        AssertMsgFailed(("Destroy hEventMultiSem %p failed, lasterr=%u (%Rrc)\n", pThis, dwErr, rc));
d05e58c15346e272284b3db3adae55a8fb8977davboxsync        /* Leak it. */
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    }
d05e58c15346e272284b3db3adae55a8fb8977davboxsync
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    return rc;
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync}
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
ab93606043a9881487aa83be04191d2f4ea24071vboxsyncRTDECL(int)  RTSemEventMultiSignal(RTSEMEVENTMULTI hEventMultiSem)
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync{
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    /*
d05e58c15346e272284b3db3adae55a8fb8977davboxsync     * Validate input.
d05e58c15346e272284b3db3adae55a8fb8977davboxsync     */
ab93606043a9881487aa83be04191d2f4ea24071vboxsync    struct RTSEMEVENTMULTIINTERNAL *pThis = hEventMultiSem;
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    AssertReturn(pThis->u32Magic == RTSEMEVENTMULTI_MAGIC, VERR_INVALID_HANDLE);
d05e58c15346e272284b3db3adae55a8fb8977davboxsync
d05e58c15346e272284b3db3adae55a8fb8977davboxsync#ifdef RTSEMEVENT_STRICT
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    if (pThis->fEverHadSignallers)
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    {
d05e58c15346e272284b3db3adae55a8fb8977davboxsync        int rc9 = RTLockValidatorRecSharedCheckSignaller(&pThis->Signallers, NIL_RTTHREAD);
d05e58c15346e272284b3db3adae55a8fb8977davboxsync        if (RT_FAILURE(rc9))
d05e58c15346e272284b3db3adae55a8fb8977davboxsync            return rc9;
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    }
d05e58c15346e272284b3db3adae55a8fb8977davboxsync#endif
d05e58c15346e272284b3db3adae55a8fb8977davboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync    /*
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync     * Signal the object.
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync     */
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    if (SetEvent(pThis->hev))
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync        return VINF_SUCCESS;
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    DWORD dwErr = GetLastError();
ab93606043a9881487aa83be04191d2f4ea24071vboxsync    AssertMsgFailed(("Signaling hEventMultiSem %p failed, lasterr=%d\n", pThis, dwErr));
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    return RTErrConvertFromWin32(dwErr);
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync}
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
ab93606043a9881487aa83be04191d2f4ea24071vboxsyncRTDECL(int)  RTSemEventMultiReset(RTSEMEVENTMULTI hEventMultiSem)
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync{
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    /*
d05e58c15346e272284b3db3adae55a8fb8977davboxsync     * Validate input.
d05e58c15346e272284b3db3adae55a8fb8977davboxsync     */
ab93606043a9881487aa83be04191d2f4ea24071vboxsync    struct RTSEMEVENTMULTIINTERNAL *pThis = hEventMultiSem;
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    AssertReturn(pThis->u32Magic == RTSEMEVENTMULTI_MAGIC, VERR_INVALID_HANDLE);
d05e58c15346e272284b3db3adae55a8fb8977davboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync    /*
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync     * Reset the object.
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync     */
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    if (ResetEvent(pThis->hev))
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync        return VINF_SUCCESS;
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    DWORD dwErr = GetLastError();
ab93606043a9881487aa83be04191d2f4ea24071vboxsync    AssertMsgFailed(("Resetting hEventMultiSem %p failed, lasterr=%d\n", pThis, dwErr));
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    return RTErrConvertFromWin32(dwErr);
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync}
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync/** Goto avoidance. */
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsyncDECL_FORCE_INLINE(int)
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsyncrtSemEventWaitHandleStatus(struct RTSEMEVENTMULTIINTERNAL *pThis, uint32_t fFlags, DWORD rc)
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync{
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync    switch (rc)
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync    {
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync        case WAIT_OBJECT_0:         return VINF_SUCCESS;
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync        case WAIT_TIMEOUT:          return VERR_TIMEOUT;
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync        case WAIT_IO_COMPLETION:    return fFlags & RTSEMWAIT_FLAGS_RESUME ? VERR_TIMEOUT : VERR_INTERRUPTED;
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync        case WAIT_ABANDONED:        return VERR_SEM_OWNER_DIED;
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync        default:
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync            AssertMsgFailed(("%u\n", rc));
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync        case WAIT_FAILED:
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync        {
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync            int rc2 = RTErrConvertFromWin32(GetLastError());
ab93606043a9881487aa83be04191d2f4ea24071vboxsync            AssertMsgFailed(("Wait on hEventMultiSem %p failed, rc=%d lasterr=%d\n", pThis, rc, GetLastError()));
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync            if (rc2)
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync                return rc2;
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync            AssertMsgFailed(("WaitForSingleObject(event) -> rc=%d while converted lasterr=%d\n", rc, rc2));
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync            return VERR_INTERNAL_ERROR;
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync        }
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync    }
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync}
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsyncDECLINLINE(int) rtSemEventMultiWinWait(RTSEMEVENTMULTI hEventMultiSem, uint32_t fFlags, uint64_t uTimeout,
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync                                       PCRTLOCKVALSRCPOS pSrcPos)
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync{
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    /*
d05e58c15346e272284b3db3adae55a8fb8977davboxsync     * Validate input.
d05e58c15346e272284b3db3adae55a8fb8977davboxsync     */
ab93606043a9881487aa83be04191d2f4ea24071vboxsync    struct RTSEMEVENTMULTIINTERNAL *pThis = hEventMultiSem;
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    AssertReturn(pThis->u32Magic == RTSEMEVENTMULTI_MAGIC, VERR_INVALID_HANDLE);
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync    AssertReturn(RTSEMWAIT_FLAGS_ARE_VALID(fFlags), VERR_INVALID_PARAMETER);
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync    /*
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync     * Convert the timeout to a millisecond count.
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync     */
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync    uint64_t uAbsDeadline;
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync    DWORD    dwMsTimeout;
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync    if (fFlags & RTSEMWAIT_FLAGS_INDEFINITE)
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync    {
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync        dwMsTimeout  = INFINITE;
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync        uAbsDeadline = UINT64_MAX;
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync    }
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync    else
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync    {
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync        if (fFlags & RTSEMWAIT_FLAGS_NANOSECS)
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync            uTimeout = uTimeout < UINT64_MAX - UINT32_C(1000000) / 2
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync                     ? (uTimeout + UINT32_C(1000000) / 2) / UINT32_C(1000000)
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync                     : UINT64_MAX / UINT32_C(1000000);
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync        if (fFlags & RTSEMWAIT_FLAGS_ABSOLUTE)
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync        {
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync            uAbsDeadline = uTimeout;
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync            uint64_t u64Now = RTTimeSystemMilliTS();
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync            if (u64Now < uTimeout)
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync                uTimeout -= u64Now;
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync            else
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync                uTimeout = 0;
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync        }
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync        else if (fFlags & RTSEMWAIT_FLAGS_RESUME)
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync            uAbsDeadline = RTTimeSystemMilliTS() + uTimeout;
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync        else
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync            uAbsDeadline = UINT64_MAX;
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync        dwMsTimeout = uTimeout < UINT32_MAX
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync                    ? (DWORD)uTimeout
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync                    : INFINITE;
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync    }
d05e58c15346e272284b3db3adae55a8fb8977davboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync    /*
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync     * Do the wait.
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync     */
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync    DWORD rc;
d05e58c15346e272284b3db3adae55a8fb8977davboxsync#ifdef RTSEMEVENT_STRICT
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    RTTHREAD hThreadSelf = RTThreadSelfAutoAdopt();
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    if (pThis->fEverHadSignallers)
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    {
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync        do
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync            rc = WaitForSingleObjectEx(pThis->hev, 0 /*Timeout*/, TRUE /*fAlertable*/);
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync        while (rc == WAIT_IO_COMPLETION && (fFlags & RTSEMWAIT_FLAGS_RESUME));
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync        if (rc != WAIT_TIMEOUT || dwMsTimeout == 0)
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync            return rtSemEventWaitHandleStatus(pThis, fFlags, rc);
d05e58c15346e272284b3db3adae55a8fb8977davboxsync        int rc9 = RTLockValidatorRecSharedCheckBlocking(&pThis->Signallers, hThreadSelf, pSrcPos, false,
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync                                                        dwMsTimeout, RTTHREADSTATE_EVENT_MULTI, true);
d05e58c15346e272284b3db3adae55a8fb8977davboxsync        if (RT_FAILURE(rc9))
d05e58c15346e272284b3db3adae55a8fb8977davboxsync            return rc9;
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    }
d05e58c15346e272284b3db3adae55a8fb8977davboxsync#else
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    RTTHREAD hThreadSelf = RTThreadSelf();
d05e58c15346e272284b3db3adae55a8fb8977davboxsync#endif
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    RTThreadBlocking(hThreadSelf, RTTHREADSTATE_EVENT_MULTI, true);
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync    rc = WaitForSingleObjectEx(pThis->hev, dwMsTimeout, TRUE /*fAlertable*/);
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync    if (rc == WAIT_IO_COMPLETION && (fFlags & RTSEMWAIT_FLAGS_RESUME))
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync    {
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync        while (   rc == WAIT_IO_COMPLETION
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync               && RTTimeSystemMilliTS() < uAbsDeadline)
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync            rc = WaitForSingleObjectEx(pThis->hev, dwMsTimeout, TRUE /*fAlertable*/);
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync    }
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    RTThreadUnblocked(hThreadSelf, RTTHREADSTATE_EVENT_MULTI);
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync    return rtSemEventWaitHandleStatus(pThis, fFlags, rc);
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync}
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync#undef RTSemEventMultiWaitEx
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsyncRTDECL(int)  RTSemEventMultiWaitEx(RTSEMEVENTMULTI hEventMultiSem, uint32_t fFlags, uint64_t uTimeout)
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync{
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync#ifndef RTSEMEVENT_STRICT
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync    return rtSemEventMultiWinWait(hEventMultiSem, fFlags, uTimeout, NULL);
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync#else
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync    RTLOCKVALSRCPOS SrcPos = RTLOCKVALSRCPOS_INIT_NORMAL_API();
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync    return rtSemEventMultiWinWait(hEventMultiSem, fFlags, uTimeout, &SrcPos);
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync#endif
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync}
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
333e7ab9cd83b32080826d06ac7b1951c684ccb5vboxsync
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsyncRTDECL(int)  RTSemEventMultiWaitExDebug(RTSEMEVENTMULTI hEventMultiSem, uint32_t fFlags, uint64_t uTimeout,
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync                                        RTHCUINTPTR uId, RT_SRC_POS_DECL)
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync{
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync    RTLOCKVALSRCPOS SrcPos = RTLOCKVALSRCPOS_INIT_DEBUG_API();
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync    return rtSemEventMultiWinWait(hEventMultiSem, fFlags, uTimeout, &SrcPos);
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync}
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync
93d83967c7ad57b530ecfa5cfbe82f6b986dd58avboxsync
333e7ab9cd83b32080826d06ac7b1951c684ccb5vboxsyncRTDECL(void) RTSemEventMultiSetSignaller(RTSEMEVENTMULTI hEventMultiSem, RTTHREAD hThread)
333e7ab9cd83b32080826d06ac7b1951c684ccb5vboxsync{
d05e58c15346e272284b3db3adae55a8fb8977davboxsync#ifdef RTSEMEVENT_STRICT
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    struct RTSEMEVENTMULTIINTERNAL *pThis = hEventMultiSem;
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    AssertPtrReturnVoid(pThis);
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    AssertReturnVoid(pThis->u32Magic == RTSEMEVENTMULTI_MAGIC);
d05e58c15346e272284b3db3adae55a8fb8977davboxsync
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    ASMAtomicWriteBool(&pThis->fEverHadSignallers, true);
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    RTLockValidatorRecSharedResetOwner(&pThis->Signallers, hThread, NULL);
d05e58c15346e272284b3db3adae55a8fb8977davboxsync#endif
333e7ab9cd83b32080826d06ac7b1951c684ccb5vboxsync}
333e7ab9cd83b32080826d06ac7b1951c684ccb5vboxsync
333e7ab9cd83b32080826d06ac7b1951c684ccb5vboxsync
333e7ab9cd83b32080826d06ac7b1951c684ccb5vboxsyncRTDECL(void) RTSemEventMultiAddSignaller(RTSEMEVENTMULTI hEventMultiSem, RTTHREAD hThread)
333e7ab9cd83b32080826d06ac7b1951c684ccb5vboxsync{
d05e58c15346e272284b3db3adae55a8fb8977davboxsync#ifdef RTSEMEVENT_STRICT
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    struct RTSEMEVENTMULTIINTERNAL *pThis = hEventMultiSem;
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    AssertPtrReturnVoid(pThis);
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    AssertReturnVoid(pThis->u32Magic == RTSEMEVENTMULTI_MAGIC);
d05e58c15346e272284b3db3adae55a8fb8977davboxsync
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    ASMAtomicWriteBool(&pThis->fEverHadSignallers, true);
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    RTLockValidatorRecSharedAddOwner(&pThis->Signallers, hThread, NULL);
d05e58c15346e272284b3db3adae55a8fb8977davboxsync#endif
333e7ab9cd83b32080826d06ac7b1951c684ccb5vboxsync}
333e7ab9cd83b32080826d06ac7b1951c684ccb5vboxsync
333e7ab9cd83b32080826d06ac7b1951c684ccb5vboxsync
333e7ab9cd83b32080826d06ac7b1951c684ccb5vboxsyncRTDECL(void) RTSemEventMultiRemoveSignaller(RTSEMEVENTMULTI hEventMultiSem, RTTHREAD hThread)
333e7ab9cd83b32080826d06ac7b1951c684ccb5vboxsync{
d05e58c15346e272284b3db3adae55a8fb8977davboxsync#ifdef RTSEMEVENT_STRICT
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    struct RTSEMEVENTMULTIINTERNAL *pThis = hEventMultiSem;
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    AssertPtrReturnVoid(pThis);
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    AssertReturnVoid(pThis->u32Magic == RTSEMEVENTMULTI_MAGIC);
d05e58c15346e272284b3db3adae55a8fb8977davboxsync
d05e58c15346e272284b3db3adae55a8fb8977davboxsync    RTLockValidatorRecSharedRemoveOwner(&pThis->Signallers, hThread);
d05e58c15346e272284b3db3adae55a8fb8977davboxsync#endif
333e7ab9cd83b32080826d06ac7b1951c684ccb5vboxsync}
333e7ab9cd83b32080826d06ac7b1951c684ccb5vboxsync