RTSemEventWait-generic.cpp revision 5964f60ed7fb52a3c4becbe83c9429f9b2f119c2
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync/* $Id$ */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync/** @file
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * IPRT - RTSemEventWait, generic RTSemEventWaitNoResume wrapper.
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync/*
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * Copyright (C) 2006-2009 Sun Microsystems, Inc.
c7814cf6e1240a519cbec0441e033d0e2470ed00vboxsync *
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * available from http://www.virtualbox.org. This file is free software;
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * you can redistribute it and/or modify it under the terms of the GNU
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * General Public License (GPL) as published by the Free Software
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync *
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * The contents of this file may alternatively be used under the terms
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * of the Common Development and Distribution License Version 1.0
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * VirtualBox OSE distribution, in which case the provisions of the
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * CDDL are applicable instead of those of the GPL.
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync *
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * You may elect to license modified versions of this file under the
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * terms and conditions of either the GPL or the CDDL or both.
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync *
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * Clara, CA 95054 USA or visit http://www.sun.com if you need
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync * additional information or have any questions.
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync */
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync/*******************************************************************************
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync* Header Files *
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync*******************************************************************************/
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync#define LOG_GROUP RTLOGGROUP_SEM
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync#include <iprt/semaphore.h>
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync#include "internal/iprt.h"
3a343ca21a267ec3c54e2317e2ed18fe99b8ebbbvboxsync
3a343ca21a267ec3c54e2317e2ed18fe99b8ebbbvboxsync#include <iprt/time.h>
3a343ca21a267ec3c54e2317e2ed18fe99b8ebbbvboxsync#include <iprt/err.h>
3a343ca21a267ec3c54e2317e2ed18fe99b8ebbbvboxsync#include <iprt/assert.h>
3a343ca21a267ec3c54e2317e2ed18fe99b8ebbbvboxsync
3a343ca21a267ec3c54e2317e2ed18fe99b8ebbbvboxsync
3a343ca21a267ec3c54e2317e2ed18fe99b8ebbbvboxsync#undef RTSemEventWait /* undo debug mapping */
3a343ca21a267ec3c54e2317e2ed18fe99b8ebbbvboxsyncRTDECL(int) RTSemEventWait(RTSEMEVENT EventSem, unsigned cMillies)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync{
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync int rc;
3a343ca21a267ec3c54e2317e2ed18fe99b8ebbbvboxsync if (cMillies == RT_INDEFINITE_WAIT)
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync {
3a343ca21a267ec3c54e2317e2ed18fe99b8ebbbvboxsync do rc = RTSemEventWaitNoResume(EventSem, cMillies);
3a343ca21a267ec3c54e2317e2ed18fe99b8ebbbvboxsync while (rc == VERR_INTERRUPTED);
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync }
3a343ca21a267ec3c54e2317e2ed18fe99b8ebbbvboxsync else
3a343ca21a267ec3c54e2317e2ed18fe99b8ebbbvboxsync {
3a343ca21a267ec3c54e2317e2ed18fe99b8ebbbvboxsync const uint64_t u64Start = RTTimeMilliTS();
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync rc = RTSemEventWaitNoResume(EventSem, cMillies);
3a343ca21a267ec3c54e2317e2ed18fe99b8ebbbvboxsync if (rc == VERR_INTERRUPTED)
3a343ca21a267ec3c54e2317e2ed18fe99b8ebbbvboxsync {
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync do
9055f61bb57d2a625c6434d55beac7565c3b3c0dvboxsync {
3a343ca21a267ec3c54e2317e2ed18fe99b8ebbbvboxsync uint64_t u64Elapsed = RTTimeMilliTS() - u64Start;
3a343ca21a267ec3c54e2317e2ed18fe99b8ebbbvboxsync if (u64Elapsed >= cMillies)
3a343ca21a267ec3c54e2317e2ed18fe99b8ebbbvboxsync return VERR_TIMEOUT;
3a343ca21a267ec3c54e2317e2ed18fe99b8ebbbvboxsync rc = RTSemEventWaitNoResume(EventSem, cMillies - (unsigned)u64Elapsed);
3a343ca21a267ec3c54e2317e2ed18fe99b8ebbbvboxsync } while (rc == VERR_INTERRUPTED);
3a343ca21a267ec3c54e2317e2ed18fe99b8ebbbvboxsync }
3a343ca21a267ec3c54e2317e2ed18fe99b8ebbbvboxsync }
20bc7269cdb015fe47a9a4a0511470f3b26660f8vboxsync return rc;
20bc7269cdb015fe47a9a4a0511470f3b26660f8vboxsync}
20bc7269cdb015fe47a9a4a0511470f3b26660f8vboxsyncRT_EXPORT_SYMBOL(RTSemEventWait);
20bc7269cdb015fe47a9a4a0511470f3b26660f8vboxsync
20bc7269cdb015fe47a9a4a0511470f3b26660f8vboxsync