r3/win/semevent-win.cpp

5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync/* $Id$ */
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync/** @file
ad27e1d5e48ca41245120c331cc88b50464813cevboxsync * IPRT - Event Semaphore, Windows.
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>
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#include "internal/iprt.h"
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#include <iprt/asm.h>
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync#include <iprt/assert.h>
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync#include <iprt/err.h>
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#include <iprt/lockvalidator.h>
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#include <iprt/mem.h>
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#include <iprt/thread.h>
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#include "internal/magics.h"
418b9db49fbc652ef9c3f030fdc0f1a322403d95vboxsync#include "internal/mem.h"
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync#include "internal/strict.h"
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync/*******************************************************************************
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync*   Defined Constants And Macros                                               *
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync*******************************************************************************/
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsyncstruct RTSEMEVENTINTERNAL
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync{
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    /** Magic value (RTSEMEVENT_MAGIC). */
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    uint32_t            u32Magic;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    /** The event handle. */
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    HANDLE              hev;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#ifdef RTSEMEVENT_STRICT
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    /** Signallers. */
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    RTLOCKVALRECSHRD    Signallers;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    /** Indicates that lock validation should be performed. */
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    bool volatile       fEverHadSignallers;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#endif
418b9db49fbc652ef9c3f030fdc0f1a322403d95vboxsync    /** The creation flags. */
418b9db49fbc652ef9c3f030fdc0f1a322403d95vboxsync    uint32_t            fFlags;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync};
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
a734bb626f889ee3334bfc381be194b4ec56aae6vboxsync
a734bb626f889ee3334bfc381be194b4ec56aae6vboxsyncRTDECL(int)  RTSemEventCreate(PRTSEMEVENT phEventSem)
a734bb626f889ee3334bfc381be194b4ec56aae6vboxsync{
a734bb626f889ee3334bfc381be194b4ec56aae6vboxsync    return RTSemEventCreateEx(phEventSem, 0 /*fFlags*/, NIL_RTLOCKVALCLASS, NULL);
a734bb626f889ee3334bfc381be194b4ec56aae6vboxsync}
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
a734bb626f889ee3334bfc381be194b4ec56aae6vboxsyncRTDECL(int)  RTSemEventCreateEx(PRTSEMEVENT phEventSem, uint32_t fFlags, RTLOCKVALCLASS hClass, const char *pszNameFmt, ...)
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync{
418b9db49fbc652ef9c3f030fdc0f1a322403d95vboxsync    AssertReturn(!(fFlags & ~(RTSEMEVENT_FLAGS_NO_LOCK_VAL | RTSEMEVENT_FLAGS_BOOTSTRAP_HACK)), VERR_INVALID_PARAMETER);
418b9db49fbc652ef9c3f030fdc0f1a322403d95vboxsync    Assert(!(fFlags & RTSEMEVENT_FLAGS_BOOTSTRAP_HACK) || (fFlags & RTSEMEVENT_FLAGS_NO_LOCK_VAL));
a734bb626f889ee3334bfc381be194b4ec56aae6vboxsync
418b9db49fbc652ef9c3f030fdc0f1a322403d95vboxsync    struct RTSEMEVENTINTERNAL *pThis;
418b9db49fbc652ef9c3f030fdc0f1a322403d95vboxsync    if (!(fFlags & RTSEMEVENT_FLAGS_BOOTSTRAP_HACK))
418b9db49fbc652ef9c3f030fdc0f1a322403d95vboxsync        pThis = (struct RTSEMEVENTINTERNAL *)RTMemAlloc(sizeof(*pThis));
418b9db49fbc652ef9c3f030fdc0f1a322403d95vboxsync    else
418b9db49fbc652ef9c3f030fdc0f1a322403d95vboxsync        pThis = (struct RTSEMEVENTINTERNAL *)rtMemBaseAlloc(sizeof(*pThis));
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    if (!pThis)
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync        return VERR_NO_MEMORY;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync    /*
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync     * Create the semaphore.
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync     * (Auto reset, not signaled, private event object.)
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync     */
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    pThis->hev = CreateEvent(NULL, FALSE, FALSE, NULL);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    if (pThis->hev != NULL) /* not INVALID_HANDLE_VALUE */
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync    {
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync        pThis->u32Magic = RTSEMEVENT_MAGIC;
418b9db49fbc652ef9c3f030fdc0f1a322403d95vboxsync        pThis->fFlags   = fFlags;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#ifdef RTSEMEVENT_STRICT
2e42e0850e182e37277fe28ba5b5d1c37018e783vboxsync        if (!pszNameFmt)
2e42e0850e182e37277fe28ba5b5d1c37018e783vboxsync        {
2e42e0850e182e37277fe28ba5b5d1c37018e783vboxsync            static uint32_t volatile s_iSemEventAnon = 0;
2e42e0850e182e37277fe28ba5b5d1c37018e783vboxsync            RTLockValidatorRecSharedInit(&pThis->Signallers, hClass, RTLOCKVAL_SUB_CLASS_ANY, pThis,
2e42e0850e182e37277fe28ba5b5d1c37018e783vboxsync                                         true /*fSignaller*/, !(fFlags & RTSEMEVENT_FLAGS_NO_LOCK_VAL),
2e42e0850e182e37277fe28ba5b5d1c37018e783vboxsync                                         "RTSemEvent-%u", ASMAtomicIncU32(&s_iSemEventAnon) - 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 & RTSEMEVENT_FLAGS_NO_LOCK_VAL),
2e42e0850e182e37277fe28ba5b5d1c37018e783vboxsync                                          pszNameFmt, va);
2e42e0850e182e37277fe28ba5b5d1c37018e783vboxsync            va_end(va);
2e42e0850e182e37277fe28ba5b5d1c37018e783vboxsync        }
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync        pThis->fEverHadSignallers = false;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#endif
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync
a734bb626f889ee3334bfc381be194b4ec56aae6vboxsync        *phEventSem = pThis;
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync        return VINF_SUCCESS;
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync    }
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    DWORD dwErr = GetLastError();
418b9db49fbc652ef9c3f030fdc0f1a322403d95vboxsync    if (!(fFlags & RTSEMEVENT_FLAGS_BOOTSTRAP_HACK))
418b9db49fbc652ef9c3f030fdc0f1a322403d95vboxsync        RTMemFree(pThis);
418b9db49fbc652ef9c3f030fdc0f1a322403d95vboxsync    else
418b9db49fbc652ef9c3f030fdc0f1a322403d95vboxsync        rtMemBaseFree(pThis);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    return RTErrConvertFromWin32(dwErr);
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync}
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
a734bb626f889ee3334bfc381be194b4ec56aae6vboxsyncRTDECL(int)  RTSemEventDestroy(RTSEMEVENT hEventSem)
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync{
a734bb626f889ee3334bfc381be194b4ec56aae6vboxsync    struct RTSEMEVENTINTERNAL *pThis = hEventSem;
a734bb626f889ee3334bfc381be194b4ec56aae6vboxsync    if (pThis == NIL_RTSEMEVENT)
a734bb626f889ee3334bfc381be194b4ec56aae6vboxsync        return VINF_SUCCESS;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    AssertReturn(pThis->u32Magic == RTSEMEVENT_MAGIC, VERR_INVALID_HANDLE);
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync    /*
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync     * Invalidate the handle and close the semaphore.
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync     */
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    int rc = VINF_SUCCESS;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    AssertReturn(ASMAtomicCmpXchgU32(&pThis->u32Magic, ~RTSEMEVENT_MAGIC, RTSEMEVENT_MAGIC), VERR_INVALID_HANDLE);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    if (CloseHandle(pThis->hev))
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    {
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#ifdef RTSEMEVENT_STRICT
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync        RTLockValidatorRecSharedDelete(&pThis->Signallers);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#endif
418b9db49fbc652ef9c3f030fdc0f1a322403d95vboxsync        if (!(pThis->fFlags & RTSEMEVENT_FLAGS_BOOTSTRAP_HACK))
418b9db49fbc652ef9c3f030fdc0f1a322403d95vboxsync            RTMemFree(pThis);
418b9db49fbc652ef9c3f030fdc0f1a322403d95vboxsync        else
418b9db49fbc652ef9c3f030fdc0f1a322403d95vboxsync            rtMemBaseFree(pThis);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    }
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    else
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    {
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync        DWORD dwErr = GetLastError();
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync        rc = RTErrConvertFromWin32(dwErr);
a734bb626f889ee3334bfc381be194b4ec56aae6vboxsync        AssertMsgFailed(("Destroy hEventSem %p failed, lasterr=%u (%Rrc)\n", pThis, dwErr, rc));
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync        /* Leak it. */
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    }
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    return rc;
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync}
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
a734bb626f889ee3334bfc381be194b4ec56aae6vboxsyncRTDECL(int)  RTSemEventSignal(RTSEMEVENT hEventSem)
0af12d8c60220c658a59ecf229fc65cdf8db2558vboxsync{
0af12d8c60220c658a59ecf229fc65cdf8db2558vboxsync    /*
0af12d8c60220c658a59ecf229fc65cdf8db2558vboxsync     * Validate input.
0af12d8c60220c658a59ecf229fc65cdf8db2558vboxsync     */
a734bb626f889ee3334bfc381be194b4ec56aae6vboxsync    struct RTSEMEVENTINTERNAL *pThis = hEventSem;
0af12d8c60220c658a59ecf229fc65cdf8db2558vboxsync    AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
0af12d8c60220c658a59ecf229fc65cdf8db2558vboxsync    AssertReturn(pThis->u32Magic == RTSEMEVENT_MAGIC, VERR_INVALID_HANDLE);
0af12d8c60220c658a59ecf229fc65cdf8db2558vboxsync
0af12d8c60220c658a59ecf229fc65cdf8db2558vboxsync#ifdef RTSEMEVENT_STRICT
0af12d8c60220c658a59ecf229fc65cdf8db2558vboxsync    if (pThis->fEverHadSignallers)
0af12d8c60220c658a59ecf229fc65cdf8db2558vboxsync    {
0af12d8c60220c658a59ecf229fc65cdf8db2558vboxsync        int rc9 = RTLockValidatorRecSharedCheckSignaller(&pThis->Signallers, NIL_RTTHREAD);
0af12d8c60220c658a59ecf229fc65cdf8db2558vboxsync        if (RT_FAILURE(rc9))
0af12d8c60220c658a59ecf229fc65cdf8db2558vboxsync            return rc9;
0af12d8c60220c658a59ecf229fc65cdf8db2558vboxsync    }
0af12d8c60220c658a59ecf229fc65cdf8db2558vboxsync#endif
0af12d8c60220c658a59ecf229fc65cdf8db2558vboxsync
0af12d8c60220c658a59ecf229fc65cdf8db2558vboxsync    /*
0af12d8c60220c658a59ecf229fc65cdf8db2558vboxsync     * Signal the object.
0af12d8c60220c658a59ecf229fc65cdf8db2558vboxsync     */
0af12d8c60220c658a59ecf229fc65cdf8db2558vboxsync    if (SetEvent(pThis->hev))
0af12d8c60220c658a59ecf229fc65cdf8db2558vboxsync        return VINF_SUCCESS;
0af12d8c60220c658a59ecf229fc65cdf8db2558vboxsync    DWORD dwErr = GetLastError();
a734bb626f889ee3334bfc381be194b4ec56aae6vboxsync    AssertMsgFailed(("Signaling hEventSem %p failed, lasterr=%d\n", pThis, dwErr));
0af12d8c60220c658a59ecf229fc65cdf8db2558vboxsync    return RTErrConvertFromWin32(dwErr);
0af12d8c60220c658a59ecf229fc65cdf8db2558vboxsync}
0af12d8c60220c658a59ecf229fc65cdf8db2558vboxsync
0af12d8c60220c658a59ecf229fc65cdf8db2558vboxsync
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync/** Goto avoidance. */
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsyncDECL_FORCE_INLINE(int) rtSemEventWaitHandleStatus(struct RTSEMEVENTINTERNAL *pThis, DWORD rc)
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync{
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync    switch (rc)
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync    {
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync        case WAIT_OBJECT_0:         return VINF_SUCCESS;
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync        case WAIT_TIMEOUT:          return VERR_TIMEOUT;
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync        case WAIT_IO_COMPLETION:    return 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());
a734bb626f889ee3334bfc381be194b4ec56aae6vboxsync            AssertMsgFailed(("Wait on hEventSem %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
a734bb626f889ee3334bfc381be194b4ec56aae6vboxsync#undef RTSemEventWaitNoResume
b79e4344bf4eb8033fd06d560cd864192728bd0bvboxsyncRTDECL(int)   RTSemEventWaitNoResume(RTSEMEVENT hEventSem, RTMSINTERVAL cMillies)
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync{
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    PCRTLOCKVALSRCPOS pSrcPos = NULL;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    /*
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync     * Validate input.
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync     */
a734bb626f889ee3334bfc381be194b4ec56aae6vboxsync    struct RTSEMEVENTINTERNAL *pThis = hEventSem;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    AssertReturn(pThis->u32Magic == RTSEMEVENT_MAGIC, VERR_INVALID_HANDLE);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync    /*
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync     * Wait for condition.
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync     */
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#ifdef RTSEMEVENT_STRICT
418b9db49fbc652ef9c3f030fdc0f1a322403d95vboxsync    RTTHREAD hThreadSelf = !(pThis->fFlags & RTSEMEVENT_FLAGS_BOOTSTRAP_HACK)
418b9db49fbc652ef9c3f030fdc0f1a322403d95vboxsync                         ? RTThreadSelfAutoAdopt()
418b9db49fbc652ef9c3f030fdc0f1a322403d95vboxsync                         : RTThreadSelf();
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    if (pThis->fEverHadSignallers)
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    {
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync        DWORD rc = WaitForSingleObjectEx(pThis->hev,
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync                                         0 /*Timeout*/,
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync                                         TRUE /*fAlertable*/);
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync        if (rc != WAIT_TIMEOUT || cMillies == 0)
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync            return rtSemEventWaitHandleStatus(pThis, rc);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync        int rc9 = RTLockValidatorRecSharedCheckBlocking(&pThis->Signallers, hThreadSelf, pSrcPos, false,
2805b95732a8d26015a397626b96049a6e6573e7vboxsync                                                        cMillies, RTTHREADSTATE_EVENT, true);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync        if (RT_FAILURE(rc9))
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync            return rc9;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    }
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#else
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    RTTHREAD hThreadSelf = RTThreadSelf();
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#endif
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    RTThreadBlocking(hThreadSelf, RTTHREADSTATE_EVENT, true);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    DWORD rc = WaitForSingleObjectEx(pThis->hev,
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync                                     cMillies == RT_INDEFINITE_WAIT ? INFINITE : cMillies,
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync                                     TRUE /*fAlertable*/);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    RTThreadUnblocked(hThreadSelf, RTTHREADSTATE_EVENT);
3e39de9ed8b88fa8907468a77bef44d10049b12avboxsync    return rtSemEventWaitHandleStatus(pThis, rc);
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync}
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
5964f60ed7fb52a3c4becbe83c9429f9b2f119c2vboxsync
0fcf82b2591711fa8980e8f5d9cad1b8f222d6d7vboxsyncRTDECL(void) RTSemEventSetSignaller(RTSEMEVENT hEventSem, RTTHREAD hThread)
0fcf82b2591711fa8980e8f5d9cad1b8f222d6d7vboxsync{
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#ifdef RTSEMEVENT_STRICT
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    struct RTSEMEVENTINTERNAL *pThis = hEventSem;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    AssertPtrReturnVoid(pThis);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    AssertReturnVoid(pThis->u32Magic == RTSEMEVENT_MAGIC);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    ASMAtomicWriteBool(&pThis->fEverHadSignallers, true);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    RTLockValidatorRecSharedResetOwner(&pThis->Signallers, hThread, NULL);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#endif
0fcf82b2591711fa8980e8f5d9cad1b8f222d6d7vboxsync}
0fcf82b2591711fa8980e8f5d9cad1b8f222d6d7vboxsync
0fcf82b2591711fa8980e8f5d9cad1b8f222d6d7vboxsync
0fcf82b2591711fa8980e8f5d9cad1b8f222d6d7vboxsyncRTDECL(void) RTSemEventAddSignaller(RTSEMEVENT hEventSem, RTTHREAD hThread)
0fcf82b2591711fa8980e8f5d9cad1b8f222d6d7vboxsync{
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#ifdef RTSEMEVENT_STRICT
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    struct RTSEMEVENTINTERNAL *pThis = hEventSem;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    AssertPtrReturnVoid(pThis);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    AssertReturnVoid(pThis->u32Magic == RTSEMEVENT_MAGIC);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    ASMAtomicWriteBool(&pThis->fEverHadSignallers, true);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    RTLockValidatorRecSharedAddOwner(&pThis->Signallers, hThread, NULL);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#endif
0fcf82b2591711fa8980e8f5d9cad1b8f222d6d7vboxsync}
0fcf82b2591711fa8980e8f5d9cad1b8f222d6d7vboxsync
0fcf82b2591711fa8980e8f5d9cad1b8f222d6d7vboxsync
333e7ab9cd83b32080826d06ac7b1951c684ccb5vboxsyncRTDECL(void) RTSemEventRemoveSignaller(RTSEMEVENT hEventSem, RTTHREAD hThread)
0fcf82b2591711fa8980e8f5d9cad1b8f222d6d7vboxsync{
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#ifdef RTSEMEVENT_STRICT
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    struct RTSEMEVENTINTERNAL *pThis = hEventSem;
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    AssertPtrReturnVoid(pThis);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    AssertReturnVoid(pThis->u32Magic == RTSEMEVENT_MAGIC);
0fcf82b2591711fa8980e8f5d9cad1b8f222d6d7vboxsync
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync    RTLockValidatorRecSharedRemoveOwner(&pThis->Signallers, hThread);
a1e3db9f69723048cb20f6bc815ec5fb706d8705vboxsync#endif
0fcf82b2591711fa8980e8f5d9cad1b8f222d6d7vboxsync}
0fcf82b2591711fa8980e8f5d9cad1b8f222d6d7vboxsync