r0drv/darwin/semeventmulti-r0drv-darwin.cpp

	semeventmulti-r0drv-darwin.cpp revision a8f65e585466d1267633cea76b4f97a69b7f1cc0
05afe08870681beb0792f384475077c988916762vboxsync/* $Id$ */
05afe08870681beb0792f384475077c988916762vboxsync/** @file
05afe08870681beb0792f384475077c988916762vboxsync * IPRT - Multiple Release Event Semaphores, Ring-0 Driver, Darwin.
05afe08870681beb0792f384475077c988916762vboxsync */
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync/*
e64031e20c39650a7bc902a3e1aba613b9415deevboxsync * Copyright (C) 2006-2010 Oracle Corporation
05afe08870681beb0792f384475077c988916762vboxsync *
05afe08870681beb0792f384475077c988916762vboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
05afe08870681beb0792f384475077c988916762vboxsync * available from http://www.virtualbox.org. This file is free software;
05afe08870681beb0792f384475077c988916762vboxsync * you can redistribute it and/or modify it under the terms of the GNU
05afe08870681beb0792f384475077c988916762vboxsync * General Public License (GPL) as published by the Free Software
05afe08870681beb0792f384475077c988916762vboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
05afe08870681beb0792f384475077c988916762vboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
05afe08870681beb0792f384475077c988916762vboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
05afe08870681beb0792f384475077c988916762vboxsync *
05afe08870681beb0792f384475077c988916762vboxsync * The contents of this file may alternatively be used under the terms
05afe08870681beb0792f384475077c988916762vboxsync * of the Common Development and Distribution License Version 1.0
05afe08870681beb0792f384475077c988916762vboxsync * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
05afe08870681beb0792f384475077c988916762vboxsync * VirtualBox OSE distribution, in which case the provisions of the
05afe08870681beb0792f384475077c988916762vboxsync * CDDL are applicable instead of those of the GPL.
05afe08870681beb0792f384475077c988916762vboxsync *
05afe08870681beb0792f384475077c988916762vboxsync * You may elect to license modified versions of this file under the
05afe08870681beb0792f384475077c988916762vboxsync * terms and conditions of either the GPL or the CDDL or both.
05afe08870681beb0792f384475077c988916762vboxsync */
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync/*******************************************************************************
05afe08870681beb0792f384475077c988916762vboxsync*   Header Files                                                               *
05afe08870681beb0792f384475077c988916762vboxsync*******************************************************************************/
05afe08870681beb0792f384475077c988916762vboxsync#include "the-darwin-kernel.h"
05afe08870681beb0792f384475077c988916762vboxsync#include "internal/iprt.h"
05afe08870681beb0792f384475077c988916762vboxsync#include <iprt/semaphore.h>
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync#include <iprt/assert.h>
05afe08870681beb0792f384475077c988916762vboxsync#include <iprt/asm.h>
a8f65e585466d1267633cea76b4f97a69b7f1cc0vboxsync#if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86)
a8f65e585466d1267633cea76b4f97a69b7f1cc0vboxsync# include <iprt/asm-amd64-x86.h>
a8f65e585466d1267633cea76b4f97a69b7f1cc0vboxsync#endif
05afe08870681beb0792f384475077c988916762vboxsync#include <iprt/err.h>
a8f65e585466d1267633cea76b4f97a69b7f1cc0vboxsync#include <iprt/mem.h>
05afe08870681beb0792f384475077c988916762vboxsync#include <iprt/mp.h>
05afe08870681beb0792f384475077c988916762vboxsync#include <iprt/thread.h>
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync#include "internal/magics.h"
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync/*******************************************************************************
05afe08870681beb0792f384475077c988916762vboxsync*   Structures and Typedefs                                                    *
05afe08870681beb0792f384475077c988916762vboxsync*******************************************************************************/
05afe08870681beb0792f384475077c988916762vboxsync/**
05afe08870681beb0792f384475077c988916762vboxsync * Darwin multiple release event semaphore.
05afe08870681beb0792f384475077c988916762vboxsync */
05afe08870681beb0792f384475077c988916762vboxsynctypedef struct RTSEMEVENTMULTIINTERNAL
05afe08870681beb0792f384475077c988916762vboxsync{
05afe08870681beb0792f384475077c988916762vboxsync    /** Magic value (RTSEMEVENTMULTI_MAGIC). */
05afe08870681beb0792f384475077c988916762vboxsync    uint32_t volatile   u32Magic;
05afe08870681beb0792f384475077c988916762vboxsync    /** The number of waiting threads. */
05afe08870681beb0792f384475077c988916762vboxsync    uint32_t volatile   cWaiters;
05afe08870681beb0792f384475077c988916762vboxsync    /** Set if the event object is signaled. */
05afe08870681beb0792f384475077c988916762vboxsync    uint8_t volatile    fSignaled;
05afe08870681beb0792f384475077c988916762vboxsync    /** The number of threads in the process of waking up. */
05afe08870681beb0792f384475077c988916762vboxsync    uint32_t volatile   cWaking;
05afe08870681beb0792f384475077c988916762vboxsync    /** The spinlock protecting us. */
05afe08870681beb0792f384475077c988916762vboxsync    lck_spin_t         *pSpinlock;
05afe08870681beb0792f384475077c988916762vboxsync} RTSEMEVENTMULTIINTERNAL, *PRTSEMEVENTMULTIINTERNAL;
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsyncRTDECL(int)  RTSemEventMultiCreate(PRTSEMEVENTMULTI phEventMultiSem)
05afe08870681beb0792f384475077c988916762vboxsync{
05afe08870681beb0792f384475077c988916762vboxsync    return RTSemEventMultiCreateEx(phEventMultiSem, 0 /*fFlags*/, NIL_RTLOCKVALCLASS, NULL);
05afe08870681beb0792f384475077c988916762vboxsync}
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsyncRTDECL(int)  RTSemEventMultiCreateEx(PRTSEMEVENTMULTI phEventMultiSem, uint32_t fFlags, RTLOCKVALCLASS hClass,
05afe08870681beb0792f384475077c988916762vboxsync                                     const char *pszNameFmt, ...)
05afe08870681beb0792f384475077c988916762vboxsync{
05afe08870681beb0792f384475077c988916762vboxsync    AssertReturn(!(fFlags & ~RTSEMEVENTMULTI_FLAGS_NO_LOCK_VAL), VERR_INVALID_PARAMETER);
05afe08870681beb0792f384475077c988916762vboxsync    AssertCompile(sizeof(RTSEMEVENTMULTIINTERNAL) > sizeof(void *));
05afe08870681beb0792f384475077c988916762vboxsync    AssertPtrReturn(phEventMultiSem, VERR_INVALID_POINTER);
05afe08870681beb0792f384475077c988916762vboxsync    RT_ASSERT_PREEMPTIBLE();
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync    PRTSEMEVENTMULTIINTERNAL pThis = (PRTSEMEVENTMULTIINTERNAL)RTMemAlloc(sizeof(*pThis));
05afe08870681beb0792f384475077c988916762vboxsync    if (pThis)
05afe08870681beb0792f384475077c988916762vboxsync    {
05afe08870681beb0792f384475077c988916762vboxsync        pThis->u32Magic = RTSEMEVENTMULTI_MAGIC;
05afe08870681beb0792f384475077c988916762vboxsync        pThis->cWaiters = 0;
05afe08870681beb0792f384475077c988916762vboxsync        pThis->cWaking = 0;
05afe08870681beb0792f384475077c988916762vboxsync        pThis->fSignaled = 0;
05afe08870681beb0792f384475077c988916762vboxsync        Assert(g_pDarwinLockGroup);
05afe08870681beb0792f384475077c988916762vboxsync        pThis->pSpinlock = lck_spin_alloc_init(g_pDarwinLockGroup, LCK_ATTR_NULL);
05afe08870681beb0792f384475077c988916762vboxsync        if (pThis->pSpinlock)
05afe08870681beb0792f384475077c988916762vboxsync        {
05afe08870681beb0792f384475077c988916762vboxsync            *phEventMultiSem = pThis;
05afe08870681beb0792f384475077c988916762vboxsync            return VINF_SUCCESS;
05afe08870681beb0792f384475077c988916762vboxsync        }
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync        pThis->u32Magic = 0;
05afe08870681beb0792f384475077c988916762vboxsync        RTMemFree(pThis);
05afe08870681beb0792f384475077c988916762vboxsync    }
05afe08870681beb0792f384475077c988916762vboxsync    return VERR_NO_MEMORY;
05afe08870681beb0792f384475077c988916762vboxsync}
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsyncRTDECL(int)  RTSemEventMultiDestroy(RTSEMEVENTMULTI hEventMultiSem)
05afe08870681beb0792f384475077c988916762vboxsync{
05afe08870681beb0792f384475077c988916762vboxsync    PRTSEMEVENTMULTIINTERNAL pThis = (PRTSEMEVENTMULTIINTERNAL)hEventMultiSem;
05afe08870681beb0792f384475077c988916762vboxsync    if (pThis == NIL_RTSEMEVENTMULTI)
05afe08870681beb0792f384475077c988916762vboxsync        return VINF_SUCCESS;
05afe08870681beb0792f384475077c988916762vboxsync    AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
05afe08870681beb0792f384475077c988916762vboxsync    AssertMsgReturn(pThis->u32Magic == RTSEMEVENTMULTI_MAGIC, ("pThis=%p u32Magic=%#x\n", pThis, pThis->u32Magic), VERR_INVALID_HANDLE);
05afe08870681beb0792f384475077c988916762vboxsync    RT_ASSERT_INTS_ON();
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync    lck_spin_lock(pThis->pSpinlock);
05afe08870681beb0792f384475077c988916762vboxsync    ASMAtomicIncU32(&pThis->u32Magic); /* make the handle invalid */
05afe08870681beb0792f384475077c988916762vboxsync    if (pThis->cWaiters > 0)
05afe08870681beb0792f384475077c988916762vboxsync    {
05afe08870681beb0792f384475077c988916762vboxsync        /* abort waiting thread, last man cleans up. */
05afe08870681beb0792f384475077c988916762vboxsync        ASMAtomicXchgU32(&pThis->cWaking, pThis->cWaking + pThis->cWaiters);
05afe08870681beb0792f384475077c988916762vboxsync        thread_wakeup_prim((event_t)pThis, FALSE /* all threads */, THREAD_RESTART);
05afe08870681beb0792f384475077c988916762vboxsync        lck_spin_unlock(pThis->pSpinlock);
05afe08870681beb0792f384475077c988916762vboxsync    }
05afe08870681beb0792f384475077c988916762vboxsync    else if (pThis->cWaking)
05afe08870681beb0792f384475077c988916762vboxsync        /* the last waking thread is gonna do the cleanup */
05afe08870681beb0792f384475077c988916762vboxsync        lck_spin_unlock(pThis->pSpinlock);
05afe08870681beb0792f384475077c988916762vboxsync    else
05afe08870681beb0792f384475077c988916762vboxsync    {
05afe08870681beb0792f384475077c988916762vboxsync        lck_spin_unlock(pThis->pSpinlock);
05afe08870681beb0792f384475077c988916762vboxsync        lck_spin_destroy(pThis->pSpinlock, g_pDarwinLockGroup);
05afe08870681beb0792f384475077c988916762vboxsync        RTMemFree(pThis);
05afe08870681beb0792f384475077c988916762vboxsync    }
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync    return VINF_SUCCESS;
05afe08870681beb0792f384475077c988916762vboxsync}
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsyncRTDECL(int)  RTSemEventMultiSignal(RTSEMEVENTMULTI hEventMultiSem)
05afe08870681beb0792f384475077c988916762vboxsync{
05afe08870681beb0792f384475077c988916762vboxsync    PRTSEMEVENTMULTIINTERNAL pThis = (PRTSEMEVENTMULTIINTERNAL)hEventMultiSem;
05afe08870681beb0792f384475077c988916762vboxsync    AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
05afe08870681beb0792f384475077c988916762vboxsync    AssertMsgReturn(pThis->u32Magic == RTSEMEVENTMULTI_MAGIC, ("pThis=%p u32Magic=%#x\n", pThis, pThis->u32Magic), VERR_INVALID_HANDLE);
05afe08870681beb0792f384475077c988916762vboxsync    RT_ASSERT_PREEMPT_CPUID_VAR();
05afe08870681beb0792f384475077c988916762vboxsync    RT_ASSERT_INTS_ON();
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync    lck_spin_lock(pThis->pSpinlock);
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync    ASMAtomicXchgU8(&pThis->fSignaled, true);
05afe08870681beb0792f384475077c988916762vboxsync    if (pThis->cWaiters > 0)
05afe08870681beb0792f384475077c988916762vboxsync    {
05afe08870681beb0792f384475077c988916762vboxsync        ASMAtomicXchgU32(&pThis->cWaking, pThis->cWaking + pThis->cWaiters);
05afe08870681beb0792f384475077c988916762vboxsync        ASMAtomicXchgU32(&pThis->cWaiters, 0);
05afe08870681beb0792f384475077c988916762vboxsync        thread_wakeup_prim((event_t)pThis, FALSE /* all threads */, THREAD_AWAKENED);
05afe08870681beb0792f384475077c988916762vboxsync    }
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync    lck_spin_unlock(pThis->pSpinlock);
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync    RT_ASSERT_PREEMPT_CPUID();
05afe08870681beb0792f384475077c988916762vboxsync    return VINF_SUCCESS;
05afe08870681beb0792f384475077c988916762vboxsync}
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsyncRTDECL(int)  RTSemEventMultiReset(RTSEMEVENTMULTI hEventMultiSem)
05afe08870681beb0792f384475077c988916762vboxsync{
05afe08870681beb0792f384475077c988916762vboxsync    PRTSEMEVENTMULTIINTERNAL pThis = (PRTSEMEVENTMULTIINTERNAL)hEventMultiSem;
05afe08870681beb0792f384475077c988916762vboxsync    AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
05afe08870681beb0792f384475077c988916762vboxsync    AssertMsgReturn(pThis->u32Magic == RTSEMEVENTMULTI_MAGIC, ("pThis=%p u32Magic=%#x\n", pThis, pThis->u32Magic), VERR_INVALID_HANDLE);
05afe08870681beb0792f384475077c988916762vboxsync    RT_ASSERT_PREEMPT_CPUID_VAR();
05afe08870681beb0792f384475077c988916762vboxsync    RT_ASSERT_INTS_ON();
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync    lck_spin_lock(pThis->pSpinlock);
05afe08870681beb0792f384475077c988916762vboxsync    ASMAtomicXchgU8(&pThis->fSignaled, false);
05afe08870681beb0792f384475077c988916762vboxsync    lck_spin_unlock(pThis->pSpinlock);
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync    RT_ASSERT_PREEMPT_CPUID();
05afe08870681beb0792f384475077c988916762vboxsync    return VINF_SUCCESS;
05afe08870681beb0792f384475077c988916762vboxsync}
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsyncstatic int rtSemEventMultiWait(RTSEMEVENTMULTI hEventMultiSem, RTMSINTERVAL cMillies, wait_interrupt_t fInterruptible)
05afe08870681beb0792f384475077c988916762vboxsync{
05afe08870681beb0792f384475077c988916762vboxsync    PRTSEMEVENTMULTIINTERNAL pThis = (PRTSEMEVENTMULTIINTERNAL)hEventMultiSem;
05afe08870681beb0792f384475077c988916762vboxsync    AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
05afe08870681beb0792f384475077c988916762vboxsync    AssertMsgReturn(pThis->u32Magic == RTSEMEVENTMULTI_MAGIC, ("pThis=%p u32Magic=%#x\n", pThis, pThis->u32Magic), VERR_INVALID_HANDLE);
05afe08870681beb0792f384475077c988916762vboxsync    if (cMillies)
05afe08870681beb0792f384475077c988916762vboxsync        RT_ASSERT_PREEMPTIBLE();
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync    lck_spin_lock(pThis->pSpinlock);
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync    int rc;
05afe08870681beb0792f384475077c988916762vboxsync    if (pThis->fSignaled)
05afe08870681beb0792f384475077c988916762vboxsync        rc = VINF_SUCCESS;
05afe08870681beb0792f384475077c988916762vboxsync    else if (!cMillies)
05afe08870681beb0792f384475077c988916762vboxsync        rc = VERR_TIMEOUT;
05afe08870681beb0792f384475077c988916762vboxsync    else
05afe08870681beb0792f384475077c988916762vboxsync    {
05afe08870681beb0792f384475077c988916762vboxsync        ASMAtomicIncU32(&pThis->cWaiters);
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync        wait_result_t rcWait;
05afe08870681beb0792f384475077c988916762vboxsync        if (cMillies == RT_INDEFINITE_WAIT)
05afe08870681beb0792f384475077c988916762vboxsync            rcWait = lck_spin_sleep(pThis->pSpinlock, LCK_SLEEP_DEFAULT, (event_t)pThis, fInterruptible);
05afe08870681beb0792f384475077c988916762vboxsync        else
05afe08870681beb0792f384475077c988916762vboxsync        {
05afe08870681beb0792f384475077c988916762vboxsync            uint64_t u64AbsTime;
05afe08870681beb0792f384475077c988916762vboxsync            nanoseconds_to_absolutetime(cMillies * UINT64_C(1000000), &u64AbsTime);
05afe08870681beb0792f384475077c988916762vboxsync            u64AbsTime += mach_absolute_time();
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync            rcWait = lck_spin_sleep_deadline(pThis->pSpinlock, LCK_SLEEP_DEFAULT,
05afe08870681beb0792f384475077c988916762vboxsync                                             (event_t)pThis, fInterruptible, u64AbsTime);
05afe08870681beb0792f384475077c988916762vboxsync        }
05afe08870681beb0792f384475077c988916762vboxsync        switch (rcWait)
05afe08870681beb0792f384475077c988916762vboxsync        {
05afe08870681beb0792f384475077c988916762vboxsync            case THREAD_AWAKENED:
05afe08870681beb0792f384475077c988916762vboxsync                Assert(pThis->cWaking > 0);
05afe08870681beb0792f384475077c988916762vboxsync                if (    !ASMAtomicDecU32(&pThis->cWaking)
05afe08870681beb0792f384475077c988916762vboxsync                    &&  pThis->u32Magic != RTSEMEVENTMULTI_MAGIC)
05afe08870681beb0792f384475077c988916762vboxsync                {
05afe08870681beb0792f384475077c988916762vboxsync                    /* the event was destroyed after we woke up, as the last thread do the cleanup. */
05afe08870681beb0792f384475077c988916762vboxsync                    lck_spin_unlock(pThis->pSpinlock);
05afe08870681beb0792f384475077c988916762vboxsync                    Assert(g_pDarwinLockGroup);
05afe08870681beb0792f384475077c988916762vboxsync                    lck_spin_destroy(pThis->pSpinlock, g_pDarwinLockGroup);
05afe08870681beb0792f384475077c988916762vboxsync                    RTMemFree(pThis);
05afe08870681beb0792f384475077c988916762vboxsync                    return VINF_SUCCESS;
05afe08870681beb0792f384475077c988916762vboxsync                }
05afe08870681beb0792f384475077c988916762vboxsync                rc = VINF_SUCCESS;
05afe08870681beb0792f384475077c988916762vboxsync                break;
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync            case THREAD_TIMED_OUT:
05afe08870681beb0792f384475077c988916762vboxsync                Assert(cMillies != RT_INDEFINITE_WAIT);
05afe08870681beb0792f384475077c988916762vboxsync                ASMAtomicDecU32(&pThis->cWaiters);
05afe08870681beb0792f384475077c988916762vboxsync                rc = VERR_TIMEOUT;
05afe08870681beb0792f384475077c988916762vboxsync                break;
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync            case THREAD_INTERRUPTED:
05afe08870681beb0792f384475077c988916762vboxsync                Assert(fInterruptible);
05afe08870681beb0792f384475077c988916762vboxsync                ASMAtomicDecU32(&pThis->cWaiters);
05afe08870681beb0792f384475077c988916762vboxsync                rc = VERR_INTERRUPTED;
05afe08870681beb0792f384475077c988916762vboxsync                break;
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync            case THREAD_RESTART:
05afe08870681beb0792f384475077c988916762vboxsync                /* Last one out does the cleanup. */
05afe08870681beb0792f384475077c988916762vboxsync                if (!ASMAtomicDecU32(&pThis->cWaking))
05afe08870681beb0792f384475077c988916762vboxsync                {
05afe08870681beb0792f384475077c988916762vboxsync                    lck_spin_unlock(pThis->pSpinlock);
05afe08870681beb0792f384475077c988916762vboxsync                    Assert(g_pDarwinLockGroup);
05afe08870681beb0792f384475077c988916762vboxsync                    lck_spin_destroy(pThis->pSpinlock, g_pDarwinLockGroup);
05afe08870681beb0792f384475077c988916762vboxsync                    RTMemFree(pThis);
05afe08870681beb0792f384475077c988916762vboxsync                    return VERR_SEM_DESTROYED;
05afe08870681beb0792f384475077c988916762vboxsync                }
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync                rc = VERR_SEM_DESTROYED;
05afe08870681beb0792f384475077c988916762vboxsync                break;
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync            default:
05afe08870681beb0792f384475077c988916762vboxsync                AssertMsgFailed(("rcWait=%d\n", rcWait));
05afe08870681beb0792f384475077c988916762vboxsync                rc = VERR_GENERAL_FAILURE;
05afe08870681beb0792f384475077c988916762vboxsync                break;
05afe08870681beb0792f384475077c988916762vboxsync        }
05afe08870681beb0792f384475077c988916762vboxsync    }
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync    lck_spin_unlock(pThis->pSpinlock);
05afe08870681beb0792f384475077c988916762vboxsync    return rc;
05afe08870681beb0792f384475077c988916762vboxsync}
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsyncRTDECL(int)  RTSemEventMultiWait(RTSEMEVENTMULTI hEventMultiSem, RTMSINTERVAL cMillies)
05afe08870681beb0792f384475077c988916762vboxsync{
05afe08870681beb0792f384475077c988916762vboxsync    return rtSemEventMultiWait(hEventMultiSem, cMillies, THREAD_UNINT);
05afe08870681beb0792f384475077c988916762vboxsync}
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsync
05afe08870681beb0792f384475077c988916762vboxsyncRTDECL(int)  RTSemEventMultiWaitNoResume(RTSEMEVENTMULTI hEventMultiSem, RTMSINTERVAL cMillies)
05afe08870681beb0792f384475077c988916762vboxsync{
05afe08870681beb0792f384475077c988916762vboxsync    return rtSemEventMultiWait(hEventMultiSem, cMillies, THREAD_ABORTSAFE);
05afe08870681beb0792f384475077c988916762vboxsync}
05afe08870681beb0792f384475077c988916762vboxsync