r0drv/haiku/semeventmulti-r0drv-haiku.c

9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync/* $Id$ */
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync/** @file
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync * IPRT - Multiple Release Event Semaphores, Ring-0 Driver, Haiku.
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync */
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync/*
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync * Copyright (C) 2012 Oracle Corporation
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync *
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync * available from http://www.virtualbox.org. This file is free software;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync * you can redistribute it and/or modify it under the terms of the GNU
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync * General Public License (GPL) as published by the Free Software
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync *
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync * The contents of this file may alternatively be used under the terms
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync * of the Common Development and Distribution License Version 1.0
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync * VirtualBox OSE distribution, in which case the provisions of the
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync * CDDL are applicable instead of those of the GPL.
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync *
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync * You may elect to license modified versions of this file under the
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync * terms and conditions of either the GPL or the CDDL or both.
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync */
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync/*******************************************************************************
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync*   Header Files                                                               *
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync*******************************************************************************/
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync#include "the-haiku-kernel.h"
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync#include "internal/iprt.h"
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync#include <iprt/semaphore.h>
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync#include <iprt/assert.h>
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync#include <iprt/asm.h>
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync#include <iprt/err.h>
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync#include <iprt/mem.h>
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync#include <iprt/lockvalidator.h>
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync#include "internal/magics.h"
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync/*******************************************************************************
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync*   Structures and Typedefs                                                    *
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync*******************************************************************************/
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync/**
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync * Haiku multiple release event semaphore.
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync */
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsynctypedef struct RTSEMEVENTMULTIINTERNAL
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync{
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    /** Magic value (RTSEMEVENTMULTI_MAGIC). */
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    uint32_t volatile   u32Magic;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    /** Reference counter. */
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    uint32_t volatile   cRefs;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    /** The semaphore Id. */
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    sem_id              SemId;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync} RTSEMEVENTMULTIINTERNAL, *PRTSEMEVENTMULTIINTERNAL;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsyncRTDECL(int)  RTSemEventMultiCreate(PRTSEMEVENTMULTI phEventMultiSem)
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync{
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    return RTSemEventMultiCreateEx(phEventMultiSem, 0 /* fFlags */, NIL_RTLOCKVALCLASS, NULL);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync}
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsyncRTDECL(int)  RTSemEventMultiCreateEx(PRTSEMEVENTMULTI phEventMultiSem, uint32_t fFlags, RTLOCKVALCLASS hClass,
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync                                     const char *pszNameFmt, ...)
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync{
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    PRTSEMEVENTMULTIINTERNAL pThis;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    AssertReturn(!(fFlags & ~RTSEMEVENTMULTI_FLAGS_NO_LOCK_VAL), VERR_INVALID_PARAMETER);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    pThis = (PRTSEMEVENTMULTIINTERNAL)RTMemAlloc(sizeof(*pThis));
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    if (!pThis)
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync        return VERR_NO_MEMORY;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    pThis->u32Magic  = RTSEMEVENTMULTI_MAGIC;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    pThis->cRefs     = 1;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    pThis->SemId     = create_sem(0, "IPRT Semaphore Event Multi");
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    if (pThis->SemId < B_OK)
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    {
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync        set_sem_owner(pThis->SemId, B_SYSTEM_TEAM);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync        *phEventMultiSem = pThis;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync        return VINF_SUCCESS;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    }
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    RTMemFree(pThis);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    return VERR_TOO_MANY_SEMAPHORES;  /** @todo r=ramshankar: use RTErrConvertFromHaikuKernReturn */
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync}
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync/**
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync * Retain a reference to the semaphore.
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync *
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync * @param   pThis       The semaphore.
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync */
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsyncDECLINLINE(void) rtR0SemEventMultiHkuRetain(PRTSEMEVENTMULTIINTERNAL pThis)
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync{
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    uint32_t cRefs = ASMAtomicIncU32(&pThis->cRefs);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    Assert(cRefs && cRefs < 100000);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync}
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync/**
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync * Release a reference, destroy the thing if necessary.
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync *
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync * @param   pThis       The semaphore.
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync */
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsyncDECLINLINE(void) rtR0SemEventMultiHkuRelease(PRTSEMEVENTMULTIINTERNAL pThis)
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync{
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    if (RT_UNLIKELY(ASMAtomicDecU32(&pThis->cRefs) == 0))
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    {
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync        Assert(pThis->u32Magic != RTSEMEVENTMULTI_MAGIC);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync        RTMemFree(pThis);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    }
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync}
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsyncRTDECL(int)  RTSemEventMultiDestroy(RTSEMEVENTMULTI hEventMultiSem)
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync{
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    /*
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync     * Validate input.
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync     */
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    PRTSEMEVENTMULTIINTERNAL pThis = (PRTSEMEVENTMULTIINTERNAL)hEventMultiSem;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    if (pThis == NIL_RTSEMEVENTMULTI)
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync        return VINF_SUCCESS;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    AssertPtrReturn(pThis, VERR_INVALID_PARAMETER);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    AssertMsgReturn(pThis->u32Magic == RTSEMEVENTMULTI_MAGIC, ("%p u32Magic=%RX32\n", pThis, pThis->u32Magic), VERR_INVALID_PARAMETER);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    Assert(pThis->cRefs > 0);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    /*
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync     * Invalidate it and signal the object just in case.
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync     */
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    ASMAtomicWriteU32(&pThis->u32Magic, ~RTSEMEVENTMULTI_MAGIC);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    delete_sem(pThis->SemId);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    pThis->SemId = -1;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    rtR0SemEventMultiHkuRelease(pThis);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    return VINF_SUCCESS;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync}
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsyncRTDECL(int)  RTSemEventMultiSignal(RTSEMEVENTMULTI hEventMultiSem)
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync{
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    /*
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync     * Validate input.
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync     */
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    PRTSEMEVENTMULTIINTERNAL pThis = (PRTSEMEVENTMULTIINTERNAL)hEventMultiSem;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    if (!pThis)
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync        return VERR_INVALID_PARAMETER;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    AssertPtrReturn(pThis, VERR_INVALID_PARAMETER);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    AssertMsgReturn(pThis->u32Magic == RTSEMEVENTMULTI_MAGIC, ("%p u32Magic=%RX32\n", pThis, pThis->u32Magic), VERR_INVALID_PARAMETER);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    rtR0SemEventMultiHkuRetain(pThis);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    /*
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync     * Signal the event object.
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync     * We must use B_DO_NOT_RESCHEDULE since we are being used from an irq handler.
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync     */
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    release_sem_etc(pThis->SemId, 1, B_RELEASE_ALL | B_DO_NOT_RESCHEDULE);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    rtR0SemEventMultiHkuRelease(pThis);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    return VINF_SUCCESS;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync}
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsyncRTDECL(int)  RTSemEventMultiReset(RTSEMEVENTMULTI hEventMultiSem)
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync{
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    /*
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync     * Validate input.
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync     */
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    PRTSEMEVENTMULTIINTERNAL pThis = (PRTSEMEVENTMULTIINTERNAL)hEventMultiSem;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    if (!pThis)
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync        return VERR_INVALID_PARAMETER;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    AssertPtrReturn(pThis, VERR_INVALID_PARAMETER);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    AssertMsgReturn(pThis->u32Magic == RTSEMEVENTMULTI_MAGIC, ("%p u32Magic=%RX32\n", pThis, pThis->u32Magic), VERR_INVALID_PARAMETER);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    rtR0SemEventMultiHkuRetain(pThis);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    /*
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync     * Reset it.
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync     */
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    //FIXME: what should I do ???
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    // delete_sem + create_sem ??
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    rtR0SemEventMultiHkuRelease(pThis);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    return VINF_SUCCESS;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync}
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync/**
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync * Worker for RTSemEventMultiWaitEx and RTSemEventMultiWaitExDebug.
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync *
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync * @returns VBox status code.
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync * @param   pThis           The event semaphore.
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync * @param   fFlags          See RTSemEventMultiWaitEx.
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync * @param   uTimeout        See RTSemEventMultiWaitEx.
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync * @param   pSrcPos         The source code position of the wait.
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync */
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsyncstatic int rtR0SemEventMultiHkuWait(PRTSEMEVENTMULTIINTERNAL pThis, uint32_t fFlags, uint64_t uTimeout,
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync                                    PCRTLOCKVALSRCPOS pSrcPos)
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync{
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    status_t    status;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    int         rc;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    int32     flags = 0;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    bigtime_t timeout; /* in microseconds */
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    /*
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync     * Validate the input.
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync     */
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    AssertPtrReturn(pThis, VERR_INVALID_PARAMETER);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    AssertMsgReturn(pThis->u32Magic == RTSEMEVENTMULTI_MAGIC, ("%p u32Magic=%RX32\n", pThis, pThis->u32Magic), VERR_INVALID_PARAMETER);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    AssertReturn(RTSEMWAIT_FLAGS_ARE_VALID(fFlags), VERR_INVALID_PARAMETER);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    if (fFlags & RTSEMWAIT_FLAGS_INDEFINITE)
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync        timeout = B_INFINITE_TIMEOUT;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    else
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    {
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync        if (fFlags & RTSEMWAIT_FLAGS_NANOSECS)
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync            timeout = uTimeout / 1000;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync        else if (fFlags & RTSEMWAIT_FLAGS_MILLISECS)
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync            timeout = uTimeout * 1000;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync        else
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync            return VERR_INVALID_PARAMETER;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync        if (fFlags & RTSEMWAIT_FLAGS_RELATIVE)
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync            flags |= B_RELATIVE_TIMEOUT;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync        else if (fFlags & RTSEMWAIT_FLAGS_ABSOLUTE)
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync            flags |= B_ABSOLUTE_TIMEOUT;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync        else
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync            return VERR_INVALID_PARAMETER;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    }
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    if (fFlags & RTSEMWAIT_FLAGS_INTERRUPTIBLE)
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync        flags |= B_CAN_INTERRUPT;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    // likely not:
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    //else
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    //    flags |= B_KILL_CAN_INTERRUPT;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    rtR0SemEventMultiHkuRetain(pThis);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    status = acquire_sem_etc(pThis->SemId, 1, flags, timeout);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    switch (status)
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    {
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync        case B_OK:
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync            rc = VINF_SUCCESS;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync            break;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync        case B_BAD_SEM_ID:
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync            rc = VERR_SEM_DESTROYED;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync            break;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync        case B_INTERRUPTED:
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync            rc = VERR_INTERRUPTED;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync            break;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync        case B_WOULD_BLOCK:
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync            /* fallthrough? */
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync        case B_TIMED_OUT:
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync            rc = VERR_TIMEOUT;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync            break;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync        default:
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync            rc = RTErrConvertFromHaikuKernReturn(status);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync            break;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    }
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    rtR0SemEventMultiHkuRelease(pThis);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    return rc;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync}
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsyncRTDECL(int)  RTSemEventMultiWaitEx(RTSEMEVENTMULTI hEventMultiSem, uint32_t fFlags, uint64_t uTimeout)
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync{
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync#ifndef RTSEMEVENT_STRICT
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    return rtR0SemEventMultiHkuWait(hEventMultiSem, fFlags, uTimeout, NULL);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync#else
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    RTLOCKVALSRCPOS SrcPos = RTLOCKVALSRCPOS_INIT_NORMAL_API();
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    return rtR0SemEventMultiHkuWait(hEventMultiSem, fFlags, uTimeout, &SrcPos);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync#endif
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync}
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsyncRT_EXPORT_SYMBOL(RTSemEventMultiWaitEx);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsyncRTDECL(int)  RTSemEventMultiWaitExDebug(RTSEMEVENTMULTI hEventMultiSem, uint32_t fFlags, uint64_t uTimeout,
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync                                        RTHCUINTPTR uId, RT_SRC_POS_DECL)
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync{
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    RTLOCKVALSRCPOS SrcPos = RTLOCKVALSRCPOS_INIT_DEBUG_API();
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    return rtR0SemEventMultiHkuWait(hEventMultiSem, fFlags, uTimeout, &SrcPos);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync}
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsyncRT_EXPORT_SYMBOL(RTSemEventMultiWaitExDebug);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsyncRTDECL(uint32_t) RTSemEventMultiGetResolution(void)
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync{
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    /* At least that's what the API supports. */
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync    return 1000;
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync}
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsyncRT_EXPORT_SYMBOL(RTSemEventMultiGetResolution);
9fc464631dc4a68fbb5eb6419d61fbe91b6b16bdvboxsync