semeventmulti-r0drv-linux.c revision 29c2b5255de6d54cace83d114cc1ada61afd1047
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync/* $Id$ */
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync/** @file
5b281ba489ca18f0380d7efc7a5108b606cce449vboxsync * IPRT - Multiple Release Event Semaphores, Ring-0 Driver, Linux.
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync */
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync/*
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync * Copyright (C) 2006-2007 Sun Microsystems, Inc.
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync *
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync * available from http://www.virtualbox.org. This file is free software;
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync * you can redistribute it and/or modify it under the terms of the GNU
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * General Public License (GPL) as published by the Free Software
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync *
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * The contents of this file may alternatively be used under the terms
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * of the Common Development and Distribution License Version 1.0
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * VirtualBox OSE distribution, in which case the provisions of the
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * CDDL are applicable instead of those of the GPL.
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync *
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * You may elect to license modified versions of this file under the
a16eb14ad7a4b5ef91ddc22d3e8e92d930f736fcvboxsync * terms and conditions of either the GPL or the CDDL or both.
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync *
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync * Clara, CA 95054 USA or visit http://www.sun.com if you need
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync * additional information or have any questions.
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync */
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync
aa4bcf0a4b2db3ac352b56a291d49cb8d4b66d32vboxsync/*******************************************************************************
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync* Header Files *
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync*******************************************************************************/
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync#include "the-linux-kernel.h"
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync#include "internal/iprt.h"
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync#include <iprt/semaphore.h>
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync#include <iprt/alloc.h>
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync#include <iprt/assert.h>
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync#include <iprt/asm.h>
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync#include <iprt/err.h>
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync#include "internal/magics.h"
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync/*******************************************************************************
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync* Structures and Typedefs *
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync*******************************************************************************/
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync/**
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync * Linux event semaphore.
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync */
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsynctypedef struct RTSEMEVENTMULTIINTERNAL
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync{
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync /** Magic value (RTSEMEVENTMULTI_MAGIC). */
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync uint32_t volatile u32Magic;
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync /** The object status - !0 when signaled and 0 when reset. */
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync uint32_t volatile fState;
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync /** The wait queue. */
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync wait_queue_head_t Head;
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync} RTSEMEVENTMULTIINTERNAL, *PRTSEMEVENTMULTIINTERNAL;
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync
d25cdc250684c6ef5a0884806d778f96126501b3vboxsyncRTDECL(int) RTSemEventMultiCreate(PRTSEMEVENTMULTI phEventMultiSem)
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync{
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync return RTSemEventMultiCreateEx(phEventMultiSem, 0 /*fFlags*/, NIL_RTLOCKVALCLASS, NULL);
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync}
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync
9197680d465154232353e065bfc7e7b0fe026b97vboxsyncRTDECL(int) RTSemEventMultiCreateEx(PRTSEMEVENTMULTI phEventMultiSem, uint32_t fFlags, RTLOCKVALCLASS hClass,
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync const char *pszNameFmt, ...)
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync{
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync PRTSEMEVENTMULTIINTERNAL pThis;
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync AssertReturn(!(fFlags & ~RTSEMEVENTMULTI_FLAGS_NO_LOCK_VAL), VERR_INVALID_PARAMETER);
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync pThis = (PRTSEMEVENTMULTIINTERNAL)RTMemAlloc(sizeof(*pThis));
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync if (pThis)
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync {
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync pThis->u32Magic = RTSEMEVENTMULTI_MAGIC;
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync pThis->fState = 0;
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync init_waitqueue_head(&pThis->Head);
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync *phEventMultiSem = pThis;
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync return VINF_SUCCESS;
ab93606043a9881487aa83be04191d2f4ea24071vboxsync }
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync return VERR_NO_MEMORY;
ab93606043a9881487aa83be04191d2f4ea24071vboxsync}
ab93606043a9881487aa83be04191d2f4ea24071vboxsyncRT_EXPORT_SYMBOL(RTSemEventMultiCreate);
ab93606043a9881487aa83be04191d2f4ea24071vboxsync
ab93606043a9881487aa83be04191d2f4ea24071vboxsync
ab93606043a9881487aa83be04191d2f4ea24071vboxsyncRTDECL(int) RTSemEventMultiDestroy(RTSEMEVENTMULTI hEventMultiSem)
ab93606043a9881487aa83be04191d2f4ea24071vboxsync{
ab93606043a9881487aa83be04191d2f4ea24071vboxsync /*
29c2b5255de6d54cace83d114cc1ada61afd1047vboxsync * Validate input.
ab93606043a9881487aa83be04191d2f4ea24071vboxsync */
29c2b5255de6d54cace83d114cc1ada61afd1047vboxsync PRTSEMEVENTMULTIINTERNAL pThis = (PRTSEMEVENTMULTIINTERNAL)hEventMultiSem;
29c2b5255de6d54cace83d114cc1ada61afd1047vboxsync if (pThis == NIL_RTSEMEVENTMULTI)
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync return VINF_SUCCESS;
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync AssertPtrReturn(pThis, VERR_INVALID_PARAMETER);
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync AssertMsgReturn(pThis->u32Magic == RTSEMEVENTMULTI_MAGIC, ("%p u32Magic=%RX32\n", pThis, pThis->u32Magic), VERR_INVALID_PARAMETER);
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync /*
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync * Invalidate it and signal the object just in case.
ab93606043a9881487aa83be04191d2f4ea24071vboxsync */
ab93606043a9881487aa83be04191d2f4ea24071vboxsync ASMAtomicWriteU32(&pThis->u32Magic, ~RTSEMEVENTMULTI_MAGIC);
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync ASMAtomicXchgU32(&pThis->fState, 0);
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync Assert(!waitqueue_active(&pThis->Head));
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync wake_up_all(&pThis->Head);
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync RTMemFree(pThis);
aa4bcf0a4b2db3ac352b56a291d49cb8d4b66d32vboxsync return VINF_SUCCESS;
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync}
d25cdc250684c6ef5a0884806d778f96126501b3vboxsyncRT_EXPORT_SYMBOL(RTSemEventMultiDestroy);
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsyncRTDECL(int) RTSemEventMultiSignal(RTSEMEVENTMULTI hEventMultiSem)
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync{
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync /*
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync * Validate input.
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync */
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync PRTSEMEVENTMULTIINTERNAL pThis = (PRTSEMEVENTMULTIINTERNAL)hEventMultiSem;
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync if (!pThis)
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync return VERR_INVALID_PARAMETER;
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync AssertPtrReturn(pThis, VERR_INVALID_PARAMETER);
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync AssertMsgReturn(pThis->u32Magic == RTSEMEVENTMULTI_MAGIC, ("%p u32Magic=%RX32\n", pThis, pThis->u32Magic), VERR_INVALID_PARAMETER);
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync /*
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync * Signal the event object.
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync */
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync ASMAtomicXchgU32(&pThis->fState, 1);
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync wake_up_all(&pThis->Head);
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync return VINF_SUCCESS;
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync}
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsyncRT_EXPORT_SYMBOL(RTSemEventMultiSignal);
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsyncRTDECL(int) RTSemEventMultiReset(RTSEMEVENTMULTI hEventMultiSem)
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync{
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync /*
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync * Validate input.
ab93606043a9881487aa83be04191d2f4ea24071vboxsync */
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync PRTSEMEVENTMULTIINTERNAL pThis = (PRTSEMEVENTMULTIINTERNAL)hEventMultiSem;
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync if (!pThis)
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync return VERR_INVALID_PARAMETER;
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync AssertPtrReturn(pThis, VERR_INVALID_PARAMETER);
ab93606043a9881487aa83be04191d2f4ea24071vboxsync AssertMsgReturn(pThis->u32Magic == RTSEMEVENTMULTI_MAGIC, ("%p u32Magic=%RX32\n", pThis, pThis->u32Magic), VERR_INVALID_PARAMETER);
ab93606043a9881487aa83be04191d2f4ea24071vboxsync
ab93606043a9881487aa83be04191d2f4ea24071vboxsync /*
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync * Reset it.
9197680d465154232353e065bfc7e7b0fe026b97vboxsync */
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync ASMAtomicXchgU32(&pThis->fState, 0);
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync return VINF_SUCCESS;
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync}
d25cdc250684c6ef5a0884806d778f96126501b3vboxsyncRT_EXPORT_SYMBOL(RTSemEventMultiReset);
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync
ab93606043a9881487aa83be04191d2f4ea24071vboxsync
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync/**
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync * Worker for RTSemEventMulti and RTSemEventMultiNoResume.
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync *
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync * @returns VBox status code.
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync * @param pThis The event semaphore.
aa4bcf0a4b2db3ac352b56a291d49cb8d4b66d32vboxsync * @param cMillies The number of milliseconds to wait.
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync * @param fInterruptible Whether it's an interruptible wait or not.
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync */
ab93606043a9881487aa83be04191d2f4ea24071vboxsyncstatic int rtSemEventMultiWait(PRTSEMEVENTMULTIINTERNAL pThis, RTMSINTERVAL cMillies, bool fInterruptible)
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync{
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync /*
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync * Ok wait for it.
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync */
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync DEFINE_WAIT(Wait);
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync int rc = VINF_SUCCESS;
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync long lTimeout = cMillies == RT_INDEFINITE_WAIT ? MAX_SCHEDULE_TIMEOUT : msecs_to_jiffies(cMillies);
ab93606043a9881487aa83be04191d2f4ea24071vboxsync#ifdef IPRT_DEBUG_SEMS
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync snprintf(current->comm, TASK_COMM_LEN, "E%lx", IPRT_DEBUG_SEMS_ADDRESS(pThis));
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync#endif
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync for (;;)
9197680d465154232353e065bfc7e7b0fe026b97vboxsync {
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync /* make everything thru schedule() atomic scheduling wise. */
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync prepare_to_wait(&pThis->Head, &Wait, fInterruptible ? TASK_INTERRUPTIBLE : TASK_UNINTERRUPTIBLE);
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync /* check the condition. */
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync if (pThis->fState)
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync break;
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync /* check for pending signals. */
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync if (fInterruptible && signal_pending(current))
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync {
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync rc = VERR_INTERRUPTED;
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync break;
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync }
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync /* wait */
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync lTimeout = schedule_timeout(lTimeout);
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync after_wait(&Wait);
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync /* Check if someone destroyed the semaphore while we were waiting. */
aa4bcf0a4b2db3ac352b56a291d49cb8d4b66d32vboxsync if (pThis->u32Magic != RTSEMEVENTMULTI_MAGIC)
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync {
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync rc = VERR_SEM_DESTROYED;
ab93606043a9881487aa83be04191d2f4ea24071vboxsync break;
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync }
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync /* check for timeout. */
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync if (!lTimeout)
ab93606043a9881487aa83be04191d2f4ea24071vboxsync {
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync rc = VERR_TIMEOUT;
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync break;
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync }
9197680d465154232353e065bfc7e7b0fe026b97vboxsync }
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync finish_wait(&pThis->Head, &Wait);
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync#ifdef IPRT_DEBUG_SEMS
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync snprintf(current->comm, TASK_COMM_LEN, "E%lx:%d", IPRT_DEBUG_SEMS_ADDRESS(pThis), rc);
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync#endif
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync return rc;
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync}
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync
d25cdc250684c6ef5a0884806d778f96126501b3vboxsyncRTDECL(int) RTSemEventMultiWait(RTSEMEVENTMULTI hEventMultiSem, RTMSINTERVAL cMillies)
aa4bcf0a4b2db3ac352b56a291d49cb8d4b66d32vboxsync{
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync PRTSEMEVENTMULTIINTERNAL pThis = (PRTSEMEVENTMULTIINTERNAL)hEventMultiSem;
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync if (!pThis)
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync return VERR_INVALID_PARAMETER;
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync AssertPtrReturn(pThis, VERR_INVALID_PARAMETER);
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync AssertMsgReturn(pThis->u32Magic == RTSEMEVENTMULTI_MAGIC, ("%p u32Magic=%RX32\n", pThis, pThis->u32Magic), VERR_INVALID_PARAMETER);
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync if (pThis->fState)
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync return VINF_SUCCESS;
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync return rtSemEventMultiWait(pThis, cMillies, false /* fInterruptible */);
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync}
d25cdc250684c6ef5a0884806d778f96126501b3vboxsyncRT_EXPORT_SYMBOL(RTSemEventMultiWait);
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsyncRTDECL(int) RTSemEventMultiWaitNoResume(RTSEMEVENTMULTI hEventMultiSem, RTMSINTERVAL cMillies)
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync{
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync PRTSEMEVENTMULTIINTERNAL pThis = (PRTSEMEVENTMULTIINTERNAL)hEventMultiSem;
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync if (!pThis)
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync return VERR_INVALID_PARAMETER;
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync AssertPtrReturn(pThis, VERR_INVALID_PARAMETER);
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync AssertMsgReturn(pThis->u32Magic == RTSEMEVENTMULTI_MAGIC, ("%p u32Magic=%RX32\n", pThis, pThis->u32Magic), VERR_INVALID_PARAMETER);
d25cdc250684c6ef5a0884806d778f96126501b3vboxsync
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync if (pThis->fState)
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync return VINF_SUCCESS;
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync return rtSemEventMultiWait(pThis, cMillies, true /* fInterruptible */);
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync}
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsyncRT_EXPORT_SYMBOL(RTSemEventMultiWaitNoResume);
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync
d1c36fd86d36726777e3d6f9d040573e0aaf30devboxsync