diff options
Diffstat (limited to 'src/VBox/Runtime/r3/posix/semeventmulti-posix.cpp')
| -rw-r--r-- | src/VBox/Runtime/r3/posix/semeventmulti-posix.cpp | 613 |
1 files changed, 613 insertions, 0 deletions
diff --git a/src/VBox/Runtime/r3/posix/semeventmulti-posix.cpp b/src/VBox/Runtime/r3/posix/semeventmulti-posix.cpp new file mode 100644 index 00000000..52171b4a --- /dev/null +++ b/src/VBox/Runtime/r3/posix/semeventmulti-posix.cpp @@ -0,0 +1,613 @@ +/* $Id: semeventmulti-posix.cpp $ */ +/** @file + * IPRT - Multiple Release Event Semaphore, POSIX. + */ + +/* + * Copyright (C) 2006-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include <iprt/semaphore.h> +#include "internal/iprt.h" + +#include <iprt/asm.h> +#include <iprt/assert.h> +#include <iprt/err.h> +#include <iprt/lockvalidator.h> +#include <iprt/mem.h> +#include <iprt/time.h> + +#include "internal/strict.h" + +#include <errno.h> +#include <pthread.h> +#include <unistd.h> +#include <sys/time.h> + +#include "semwait.h" + + +/********************************************************************************************************************************* +* Structures and Typedefs * +*********************************************************************************************************************************/ +/** Posix internal representation of a Mutex Multi semaphore. + * The POSIX implementation uses a mutex and a condition variable to implement + * the automatic reset event semaphore semantics. */ +struct RTSEMEVENTMULTIINTERNAL +{ + /** pthread condition. */ + pthread_cond_t Cond; + /** pthread mutex which protects the condition and the event state. */ + pthread_mutex_t Mutex; + /** The state of the semaphore. + * This is operated while owning mutex and using atomic updating. */ + volatile uint32_t u32State; + /** Number of waiters. */ + volatile uint32_t cWaiters; +#ifdef RTSEMEVENTMULTI_STRICT + /** Signallers. */ + RTLOCKVALRECSHRD Signallers; + /** Indicates that lock validation should be performed. */ + bool volatile fEverHadSignallers; +#endif + /** Set if we're using the monotonic clock. */ + bool fMonotonicClock; +}; + +/** The values of the u32State variable in RTSEMEVENTMULTIINTERNAL. + * @{ */ +/** The object isn't initialized. */ +#define EVENTMULTI_STATE_UNINITIALIZED 0 +/** The semaphore is signaled. */ +#define EVENTMULTI_STATE_SIGNALED 0xff00ff00 +/** The semaphore is not signaled. */ +#define EVENTMULTI_STATE_NOT_SIGNALED 0x00ff00ff +/** @} */ + + + +RTDECL(int) RTSemEventMultiCreate(PRTSEMEVENTMULTI phEventMultiSem) +{ + return RTSemEventMultiCreateEx(phEventMultiSem, 0 /*fFlags*/, NIL_RTLOCKVALCLASS, NULL); +} + + +RTDECL(int) RTSemEventMultiCreateEx(PRTSEMEVENTMULTI phEventMultiSem, uint32_t fFlags, RTLOCKVALCLASS hClass, + const char *pszNameFmt, ...) +{ + AssertReturn(!(fFlags & ~RTSEMEVENTMULTI_FLAGS_NO_LOCK_VAL), VERR_INVALID_PARAMETER); + + /* + * Allocate semaphore handle. + */ + int rc; + struct RTSEMEVENTMULTIINTERNAL *pThis = (struct RTSEMEVENTMULTIINTERNAL *)RTMemAlloc(sizeof(struct RTSEMEVENTMULTIINTERNAL)); + if (pThis) + { + /* + * Create the condition variable. + */ + pthread_condattr_t CondAttr; + rc = pthread_condattr_init(&CondAttr); + if (!rc) + { +#if defined(CLOCK_MONOTONIC) && defined(IPRT_HAVE_PTHREAD_CONDATTR_SETCLOCK) + /* ASSUMES RTTimeSystemNanoTS() == RTTimeNanoTS() == clock_gettime(CLOCK_MONOTONIC). */ + rc = pthread_condattr_setclock(&CondAttr, CLOCK_MONOTONIC); + pThis->fMonotonicClock = rc == 0; +#else + pThis->fMonotonicClock = false; +#endif + rc = pthread_cond_init(&pThis->Cond, &CondAttr); + if (!rc) + { + /* + * Create the semaphore. + */ + rc = pthread_mutex_init(&pThis->Mutex, NULL); + if (!rc) + { + pthread_condattr_destroy(&CondAttr); + + ASMAtomicWriteU32(&pThis->u32State, EVENTMULTI_STATE_NOT_SIGNALED); + ASMAtomicWriteU32(&pThis->cWaiters, 0); +#ifdef RTSEMEVENTMULTI_STRICT + if (!pszNameFmt) + { + static uint32_t volatile s_iSemEventMultiAnon = 0; + RTLockValidatorRecSharedInit(&pThis->Signallers, hClass, RTLOCKVAL_SUB_CLASS_ANY, pThis, + true /*fSignaller*/, !(fFlags & RTSEMEVENTMULTI_FLAGS_NO_LOCK_VAL), + "RTSemEventMulti-%u", ASMAtomicIncU32(&s_iSemEventMultiAnon) - 1); + } + else + { + va_list va; + va_start(va, pszNameFmt); + RTLockValidatorRecSharedInitV(&pThis->Signallers, hClass, RTLOCKVAL_SUB_CLASS_ANY, pThis, + true /*fSignaller*/, !(fFlags & RTSEMEVENTMULTI_FLAGS_NO_LOCK_VAL), + pszNameFmt, va); + va_end(va); + } + pThis->fEverHadSignallers = false; +#else + RT_NOREF_PV(hClass); RT_NOREF_PV(pszNameFmt); +#endif + + *phEventMultiSem = pThis; + return VINF_SUCCESS; + } + + pthread_cond_destroy(&pThis->Cond); + } + pthread_condattr_destroy(&CondAttr); + } + rc = RTErrConvertFromErrno(rc); + RTMemFree(pThis); + } + else + rc = VERR_NO_MEMORY; + + return rc; + +} + + +RTDECL(int) RTSemEventMultiDestroy(RTSEMEVENTMULTI hEventMultiSem) +{ + /* + * Validate handle. + */ + struct RTSEMEVENTMULTIINTERNAL *pThis = hEventMultiSem; + if (pThis == NIL_RTSEMEVENTMULTI) + return VINF_SUCCESS; + AssertPtrReturn(pThis, VERR_INVALID_HANDLE); + uint32_t u32 = pThis->u32State; + AssertReturn(u32 == EVENTMULTI_STATE_NOT_SIGNALED || u32 == EVENTMULTI_STATE_SIGNALED, VERR_INVALID_HANDLE); + + /* + * Abort all waiters forcing them to return failure. + */ + int rc; + for (int i = 30; i > 0; i--) + { + ASMAtomicXchgU32(&pThis->u32State, EVENTMULTI_STATE_UNINITIALIZED); + rc = pthread_cond_destroy(&pThis->Cond); + if (rc != EBUSY) + break; + pthread_cond_broadcast(&pThis->Cond); + usleep(1000); + } + if (rc) + { + AssertMsgFailed(("Failed to destroy event sem %p, rc=%d.\n", hEventMultiSem, rc)); + return RTErrConvertFromErrno(rc); + } + + /* + * Destroy the semaphore + * If it's busy we'll wait a bit to give the threads a chance to be scheduled. + */ + for (int i = 30; i > 0; i--) + { + rc = pthread_mutex_destroy(&pThis->Mutex); + if (rc != EBUSY) + break; + usleep(1000); + } + if (rc) + { + AssertMsgFailed(("Failed to destroy event sem %p, rc=%d. (mutex)\n", hEventMultiSem, rc)); + return RTErrConvertFromErrno(rc); + } + + /* + * Free the semaphore memory and be gone. + */ +#ifdef RTSEMEVENTMULTI_STRICT + RTLockValidatorRecSharedDelete(&pThis->Signallers); +#endif + RTMemFree(pThis); + return VINF_SUCCESS; +} + + +RTDECL(int) RTSemEventMultiSignal(RTSEMEVENTMULTI hEventMultiSem) +{ + /* + * Validate input. + */ + struct RTSEMEVENTMULTIINTERNAL *pThis = hEventMultiSem; + AssertPtrReturn(pThis, VERR_INVALID_HANDLE); + uint32_t u32 = pThis->u32State; + AssertReturn(u32 == EVENTMULTI_STATE_NOT_SIGNALED || u32 == EVENTMULTI_STATE_SIGNALED, VERR_INVALID_HANDLE); + +#ifdef RTSEMEVENTMULTI_STRICT + if (pThis->fEverHadSignallers) + { + int rc9 = RTLockValidatorRecSharedCheckSignaller(&pThis->Signallers, NIL_RTTHREAD); + if (RT_FAILURE(rc9)) + return rc9; + } +#endif + + /* + * Lock the mutex semaphore. + */ + int rc = pthread_mutex_lock(&pThis->Mutex); + if (rc) + { + AssertMsgFailed(("Failed to lock event sem %p, rc=%d.\n", hEventMultiSem, rc)); + return RTErrConvertFromErrno(rc); + } + + /* + * Check the state. + */ + if (pThis->u32State == EVENTMULTI_STATE_NOT_SIGNALED) + { + ASMAtomicXchgU32(&pThis->u32State, EVENTMULTI_STATE_SIGNALED); + rc = pthread_cond_broadcast(&pThis->Cond); + AssertMsg(!rc, ("Failed to signal event sem %p, rc=%d.\n", hEventMultiSem, rc)); + } + else if (pThis->u32State == EVENTMULTI_STATE_SIGNALED) + { + rc = pthread_cond_broadcast(&pThis->Cond); /* give'm another kick... */ + AssertMsg(!rc, ("Failed to signal event sem %p, rc=%d. (2)\n", hEventMultiSem, rc)); + } + else + rc = VERR_SEM_DESTROYED; + + /* + * Release the mutex and return. + */ + int rc2 = pthread_mutex_unlock(&pThis->Mutex); + AssertMsg(!rc2, ("Failed to unlock event sem %p, rc=%d.\n", hEventMultiSem, rc)); + if (rc) + return RTErrConvertFromErrno(rc); + if (rc2) + return RTErrConvertFromErrno(rc2); + + return VINF_SUCCESS; +} + + +RTDECL(int) RTSemEventMultiReset(RTSEMEVENTMULTI hEventMultiSem) +{ + /* + * Validate input. + */ + int rc = VINF_SUCCESS; + struct RTSEMEVENTMULTIINTERNAL *pThis = hEventMultiSem; + AssertPtrReturn(pThis, VERR_INVALID_HANDLE); + uint32_t u32 = pThis->u32State; + AssertReturn(u32 == EVENTMULTI_STATE_NOT_SIGNALED || u32 == EVENTMULTI_STATE_SIGNALED, VERR_INVALID_HANDLE); + + /* + * Lock the mutex semaphore. + */ + int rcPosix = pthread_mutex_lock(&pThis->Mutex); + if (RT_UNLIKELY(rcPosix)) + { + AssertMsgFailed(("Failed to lock event multi sem %p, rc=%d.\n", hEventMultiSem, rcPosix)); + return RTErrConvertFromErrno(rcPosix); + } + + /* + * Check the state. + */ + if (pThis->u32State == EVENTMULTI_STATE_SIGNALED) + ASMAtomicXchgU32(&pThis->u32State, EVENTMULTI_STATE_NOT_SIGNALED); + else if (pThis->u32State != EVENTMULTI_STATE_NOT_SIGNALED) + rc = VERR_SEM_DESTROYED; + + /* + * Release the mutex and return. + */ + rcPosix = pthread_mutex_unlock(&pThis->Mutex); + if (RT_UNLIKELY(rcPosix)) + { + AssertMsgFailed(("Failed to unlock event multi sem %p, rc=%d.\n", hEventMultiSem, rcPosix)); + return RTErrConvertFromErrno(rcPosix); + } + + return rc; +} + + +/** + * Handle polling (timeout already expired at the time of the call). + * + * @returns VINF_SUCCESS, VERR_TIMEOUT, VERR_SEM_DESTROYED. + * @param pThis The semaphore. + */ +DECLINLINE(int) rtSemEventMultiPosixWaitPoll(struct RTSEMEVENTMULTIINTERNAL *pThis) +{ + int rc = pthread_mutex_lock(&pThis->Mutex); + AssertMsgReturn(!rc, ("Failed to lock event multi sem %p, rc=%d.\n", pThis, rc), RTErrConvertFromErrno(rc)); + + uint32_t const u32State = pThis->u32State; + + rc = pthread_mutex_unlock(&pThis->Mutex); + AssertMsg(!rc, ("Failed to unlock event multi sem %p, rc=%d.\n", pThis, rc)); NOREF(rc); + + return u32State == EVENTMULTI_STATE_SIGNALED + ? VINF_SUCCESS + : u32State != EVENTMULTI_STATE_UNINITIALIZED + ? VERR_TIMEOUT + : VERR_SEM_DESTROYED; +} + + + +/** + * Implements the indefinite wait. + * + * @returns See RTSemEventMultiWaitEx. + * @param pThis The semaphore. + * @param fFlags See RTSemEventMultiWaitEx. + * @param pSrcPos The source position, can be NULL. + */ +static int rtSemEventMultiPosixWaitIndefinite(struct RTSEMEVENTMULTIINTERNAL *pThis, uint32_t fFlags, PCRTLOCKVALSRCPOS pSrcPos) +{ + /* take mutex */ + int rc = pthread_mutex_lock(&pThis->Mutex); + AssertMsgReturn(!rc, ("Failed to lock event multi sem %p, rc=%d.\n", pThis, rc), RTErrConvertFromErrno(rc)); + ASMAtomicIncU32(&pThis->cWaiters); + + for (;;) + { + /* check state. */ + uint32_t const u32State = pThis->u32State; + if (u32State != EVENTMULTI_STATE_NOT_SIGNALED) + { + ASMAtomicDecU32(&pThis->cWaiters); + rc = pthread_mutex_unlock(&pThis->Mutex); + AssertMsg(!rc, ("Failed to unlock event multi sem %p, rc=%d.\n", pThis, rc)); + return u32State == EVENTMULTI_STATE_SIGNALED + ? VINF_SUCCESS + : VERR_SEM_DESTROYED; + } + + /* wait */ +#ifdef RTSEMEVENTMULTI_STRICT + RTTHREAD hThreadSelf = RTThreadSelfAutoAdopt(); + if (pThis->fEverHadSignallers) + { + rc = RTLockValidatorRecSharedCheckBlocking(&pThis->Signallers, hThreadSelf, pSrcPos, false, + RT_INDEFINITE_WAIT, RTTHREADSTATE_EVENT_MULTI, true); + if (RT_FAILURE(rc)) + { + ASMAtomicDecU32(&pThis->cWaiters); + pthread_mutex_unlock(&pThis->Mutex); + return rc; + } + } +#else + RTTHREAD hThreadSelf = RTThreadSelf(); + RT_NOREF_PV(pSrcPos); +#endif + RTThreadBlocking(hThreadSelf, RTTHREADSTATE_EVENT_MULTI, true); + /** @todo interruptible wait is not implementable... */ NOREF(fFlags); + rc = pthread_cond_wait(&pThis->Cond, &pThis->Mutex); + RTThreadUnblocked(hThreadSelf, RTTHREADSTATE_EVENT_MULTI); + if (RT_UNLIKELY(rc)) + { + AssertMsgFailed(("Failed to wait on event multi sem %p, rc=%d.\n", pThis, rc)); + ASMAtomicDecU32(&pThis->cWaiters); + int rc2 = pthread_mutex_unlock(&pThis->Mutex); + AssertMsg(!rc2, ("Failed to unlock event multi sem %p, rc=%d.\n", pThis, rc2)); NOREF(rc2); + return RTErrConvertFromErrno(rc); + } + } +} + + +/** + * Implements the timed wait. + * + * @returns See RTSemEventMultiWaitEx + * @param pThis The semaphore. + * @param fFlags See RTSemEventMultiWaitEx. + * @param uTimeout See RTSemEventMultiWaitEx. + * @param pSrcPos The source position, can be NULL. + */ +static int rtSemEventMultiPosixWaitTimed(struct RTSEMEVENTMULTIINTERNAL *pThis, uint32_t fFlags, uint64_t uTimeout, + PCRTLOCKVALSRCPOS pSrcPos) +{ + /* + * Convert the timeout specification to absolute and relative deadlines, + * divierting polling and infinite waits to the appropriate workers. + */ + struct timespec AbsDeadline = { 0, 0 }; + uint64_t const cNsRelativeDeadline = rtSemPosixCalcDeadline(fFlags, uTimeout, pThis->fMonotonicClock, &AbsDeadline); + if (cNsRelativeDeadline == 0) + return rtSemEventMultiPosixWaitPoll(pThis); + if (cNsRelativeDeadline == UINT64_MAX) + return rtSemEventMultiPosixWaitIndefinite(pThis, fFlags, pSrcPos); + + /* + * To business! + */ + /* take mutex */ + int rc = pthread_mutex_lock(&pThis->Mutex); + AssertMsgReturn(rc == 0, ("rc=%d pThis=%p\n", rc, pThis), RTErrConvertFromErrno(rc)); NOREF(rc); + ASMAtomicIncU32(&pThis->cWaiters); + + for (;;) + { + /* check state. */ + uint32_t const u32State = pThis->u32State; + if (u32State != EVENTMULTI_STATE_NOT_SIGNALED) + { + ASMAtomicDecU32(&pThis->cWaiters); + rc = pthread_mutex_unlock(&pThis->Mutex); + AssertMsg(!rc, ("Failed to unlock event multi sem %p, rc=%d.\n", pThis, rc)); + return u32State == EVENTMULTI_STATE_SIGNALED + ? VINF_SUCCESS + : VERR_SEM_DESTROYED; + } + + /* wait */ +#ifdef RTSEMEVENTMULTI_STRICT + RTTHREAD hThreadSelf = RTThreadSelfAutoAdopt(); + if (pThis->fEverHadSignallers) + { + rc = RTLockValidatorRecSharedCheckBlocking(&pThis->Signallers, hThreadSelf, pSrcPos, false, + (uTimeout + RT_NS_1MS - 1)/ RT_NS_1MS, RTTHREADSTATE_EVENT_MULTI, true); + if (RT_FAILURE(rc)) + { + ASMAtomicDecU32(&pThis->cWaiters); + pthread_mutex_unlock(&pThis->Mutex); + return rc; + } + } +#else + RTTHREAD hThreadSelf = RTThreadSelf(); +#endif + RTThreadBlocking(hThreadSelf, RTTHREADSTATE_EVENT_MULTI, true); + rc = pthread_cond_timedwait(&pThis->Cond, &pThis->Mutex, &AbsDeadline); + RTThreadUnblocked(hThreadSelf, RTTHREADSTATE_EVENT_MULTI); + + /* According to SuS this function shall not return EINTR, but linux man page might have said differently at some point... */ + if ( rc != 0 + && ( rc != EINTR + || (fFlags & RTSEMWAIT_FLAGS_NORESUME)) ) + { + AssertMsg(rc == ETIMEDOUT, ("Failed to wait on event multi sem %p, rc=%d.\n", pThis, rc)); + ASMAtomicDecU32(&pThis->cWaiters); + int rc2 = pthread_mutex_unlock(&pThis->Mutex); + AssertMsg(!rc2, ("Failed to unlock event multi sem %p, rc=%d.\n", pThis, rc2)); NOREF(rc2); + return RTErrConvertFromErrno(rc); + } + } +} + + +DECLINLINE(int) rtSemEventMultiPosixWait(RTSEMEVENTMULTI hEventMultiSem, uint32_t fFlags, uint64_t uTimeout, + PCRTLOCKVALSRCPOS pSrcPos) +{ + /* + * Validate input. + */ + struct RTSEMEVENTMULTIINTERNAL *pThis = hEventMultiSem; + AssertPtrReturn(pThis, VERR_INVALID_HANDLE); + uint32_t u32 = pThis->u32State; + AssertReturn(u32 == EVENTMULTI_STATE_NOT_SIGNALED || u32 == EVENTMULTI_STATE_SIGNALED, VERR_INVALID_HANDLE); + AssertReturn(RTSEMWAIT_FLAGS_ARE_VALID(fFlags), VERR_INVALID_PARAMETER); + + /* + * Optimize the case where the event is signalled. + */ + if (ASMAtomicUoReadU32(&pThis->u32State) == EVENTMULTI_STATE_SIGNALED) + { + int rc = rtSemEventMultiPosixWaitPoll(pThis); + if (RT_LIKELY(rc != VERR_TIMEOUT)) + return rc; + } + + /* + * Indefinite or timed wait? + */ + if (fFlags & RTSEMWAIT_FLAGS_INDEFINITE) + return rtSemEventMultiPosixWaitIndefinite(pThis, fFlags, pSrcPos); + return rtSemEventMultiPosixWaitTimed(pThis, fFlags, uTimeout, pSrcPos); +} + + +#undef RTSemEventMultiWaitEx +RTDECL(int) RTSemEventMultiWaitEx(RTSEMEVENTMULTI hEventMultiSem, uint32_t fFlags, uint64_t uTimeout) +{ +#ifndef RTSEMEVENT_STRICT + return rtSemEventMultiPosixWait(hEventMultiSem, fFlags, uTimeout, NULL); +#else + RTLOCKVALSRCPOS SrcPos = RTLOCKVALSRCPOS_INIT_NORMAL_API(); + return rtSemEventMultiPosixWait(hEventMultiSem, fFlags, uTimeout, &SrcPos); +#endif +} + + +RTDECL(int) RTSemEventMultiWaitExDebug(RTSEMEVENTMULTI hEventMultiSem, uint32_t fFlags, uint64_t uTimeout, + RTHCUINTPTR uId, RT_SRC_POS_DECL) +{ + RTLOCKVALSRCPOS SrcPos = RTLOCKVALSRCPOS_INIT_DEBUG_API(); + return rtSemEventMultiPosixWait(hEventMultiSem, fFlags, uTimeout, &SrcPos); +} + + +RTDECL(void) RTSemEventMultiSetSignaller(RTSEMEVENTMULTI hEventMultiSem, RTTHREAD hThread) +{ +#ifdef RTSEMEVENTMULTI_STRICT + struct RTSEMEVENTMULTIINTERNAL *pThis = hEventMultiSem; + AssertPtrReturnVoid(pThis); + uint32_t u32 = pThis->u32State; + AssertReturnVoid(u32 == EVENTMULTI_STATE_NOT_SIGNALED || u32 == EVENTMULTI_STATE_SIGNALED); + + ASMAtomicWriteBool(&pThis->fEverHadSignallers, true); + RTLockValidatorRecSharedResetOwner(&pThis->Signallers, hThread, NULL); +#else + RT_NOREF_PV(hEventMultiSem); RT_NOREF_PV(hThread); +#endif +} + + +RTDECL(void) RTSemEventMultiAddSignaller(RTSEMEVENTMULTI hEventMultiSem, RTTHREAD hThread) +{ +#ifdef RTSEMEVENTMULTI_STRICT + struct RTSEMEVENTMULTIINTERNAL *pThis = hEventMultiSem; + AssertPtrReturnVoid(pThis); + uint32_t u32 = pThis->u32State; + AssertReturnVoid(u32 == EVENTMULTI_STATE_NOT_SIGNALED || u32 == EVENTMULTI_STATE_SIGNALED); + + ASMAtomicWriteBool(&pThis->fEverHadSignallers, true); + RTLockValidatorRecSharedAddOwner(&pThis->Signallers, hThread, NULL); +#else + RT_NOREF_PV(hEventMultiSem); RT_NOREF_PV(hThread); +#endif +} + + +RTDECL(void) RTSemEventMultiRemoveSignaller(RTSEMEVENTMULTI hEventMultiSem, RTTHREAD hThread) +{ +#ifdef RTSEMEVENTMULTI_STRICT + struct RTSEMEVENTMULTIINTERNAL *pThis = hEventMultiSem; + AssertPtrReturnVoid(pThis); + uint32_t u32 = pThis->u32State; + AssertReturnVoid(u32 == EVENTMULTI_STATE_NOT_SIGNALED || u32 == EVENTMULTI_STATE_SIGNALED); + + RTLockValidatorRecSharedRemoveOwner(&pThis->Signallers, hThread); +#else + RT_NOREF_PV(hEventMultiSem); RT_NOREF_PV(hThread); +#endif +} + |