RTDECL(int) RTPipeRead(RTPIPE hPipe, void *pvBuf, size_t cbToRead, size_t *pcbRead)
{
RTPIPEINTERNAL *pThis = hPipe;
AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
AssertReturn(pThis->u32Magic == RTPIPE_MAGIC, VERR_INVALID_HANDLE);
AssertReturn(pThis->fRead, VERR_ACCESS_DENIED);
AssertPtr(pcbRead);
AssertPtr(pvBuf);
int rc = rtPipeTryNonBlocking(pThis);
if (RT_SUCCESS(rc))
{
ssize_t cbRead = read(pThis->fd, pvBuf, RT_MIN(cbToRead, SSIZE_MAX));
if (cbRead >= 0)
{
if (cbRead || !cbToRead || !rtPipePosixHasHup(pThis))
*pcbRead = cbRead;
else
rc = VERR_BROKEN_PIPE;
}
else if (errno == EAGAIN)
{
*pcbRead = 0;
rc = VINF_TRY_AGAIN;
}
else
rc = RTErrConvertFromErrno(errno);
ASMAtomicDecU32(&pThis->u32State);
}
return rc;
}
/**
* Uninitializes the instance and sets the ready flag to FALSE.
* Called either from FinalRelease() or by the parent when it gets destroyed.
*/
void VirtualBoxClient::uninit()
{
LogFlowThisFunc(("\n"));
/* Enclose the state transition Ready->InUninit->NotReady */
AutoUninitSpan autoUninitSpan(this);
if (autoUninitSpan.uninitDone())
return;
if (mData.m_ThreadWatcher != NIL_RTTHREAD)
{
/* Signal the event semaphore and wait for the thread to terminate.
* if it hangs for some reason exit anyway, this can cause a crash
* though as the object will no longer be available. */
RTSemEventSignal(mData.m_SemEvWatcher);
RTThreadWait(mData.m_ThreadWatcher, 30000, NULL);
mData.m_ThreadWatcher = NIL_RTTHREAD;
RTSemEventDestroy(mData.m_SemEvWatcher);
mData.m_SemEvWatcher = NIL_RTSEMEVENT;
}
mData.m_pVirtualBox.setNull();
ASMAtomicDecU32(&g_cInstances);
}
int vboxVhwaHlpCheckTerm(PVBOXMP_DEVEXT pDevExt, D3DDDI_VIDEO_PRESENT_SOURCE_ID VidPnSourceId)
{
Assert(VidPnSourceId < (D3DDDI_VIDEO_PRESENT_SOURCE_ID)VBoxCommonFromDeviceExt(pDevExt)->cDisplays);
if (VidPnSourceId >= (D3DDDI_VIDEO_PRESENT_SOURCE_ID)VBoxCommonFromDeviceExt(pDevExt)->cDisplays)
return VERR_INVALID_PARAMETER;
PVBOXWDDM_SOURCE pSource = &pDevExt->aSources[VidPnSourceId];
Assert(!!(pSource->Vhwa.Settings.fFlags & VBOXVHWA_F_ENABLED));
/** @todo need a better sync */
uint32_t cNew = ASMAtomicDecU32(&pSource->Vhwa.cOverlaysCreated);
int rc = VINF_SUCCESS;
if (!cNew)
{
rc = vboxVhwaHlpDestroyPrimary(pDevExt, pSource, VidPnSourceId);
AssertRC(rc);
}
else
{
Assert(cNew < UINT32_MAX / 2);
}
return rc;
}
RTDECL(int) RTPipeWrite(RTPIPE hPipe, const void *pvBuf, size_t cbToWrite, size_t *pcbWritten)
{
RTPIPEINTERNAL *pThis = hPipe;
AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
AssertReturn(pThis->u32Magic == RTPIPE_MAGIC, VERR_INVALID_HANDLE);
AssertReturn(!pThis->fRead, VERR_ACCESS_DENIED);
AssertPtr(pcbWritten);
AssertPtr(pvBuf);
int rc = rtPipeTryNonBlocking(pThis);
if (RT_SUCCESS(rc))
{
if (cbToWrite)
{
ssize_t cbWritten = write(pThis->fd, pvBuf, RT_MIN(cbToWrite, SSIZE_MAX));
if (cbWritten >= 0)
*pcbWritten = cbWritten;
else if (errno == EAGAIN)
{
*pcbWritten = 0;
rc = VINF_TRY_AGAIN;
}
else
rc = RTErrConvertFromErrno(errno);
}
else
*pcbWritten = 0;
ASMAtomicDecU32(&pThis->u32State);
}
return rc;
}
RTDECL(int) RTSemMutexDestroy(RTSEMMUTEX hMutexSem)
{
/*
* Validate input.
*/
PRTSEMMUTEXINTERNAL pThis = (PRTSEMMUTEXINTERNAL)hMutexSem;
if (!pThis)
return VERR_INVALID_PARAMETER;
AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
AssertMsgReturn(pThis->u32Magic == RTSEMMUTEX_MAGIC, ("u32Magic=%RX32 pThis=%p\n", pThis->u32Magic, pThis), VERR_INVALID_HANDLE);
RT_ASSERT_INTS_ON();
/*
* Kill it, wake up all waiting threads and release the reference.
*/
AssertReturn(ASMAtomicCmpXchgU32(&pThis->u32Magic, ~RTSEMMUTEX_MAGIC, RTSEMMUTEX_MAGIC), VERR_INVALID_HANDLE);
lck_spin_lock(pThis->pSpinlock);
if (pThis->cWaiters > 0)
thread_wakeup_prim((event_t)pThis, FALSE /* one_thread */, THREAD_RESTART);
if (ASMAtomicDecU32(&pThis->cRefs) == 0)
rtSemMutexDarwinFree(pThis);
else
lck_spin_unlock(pThis->pSpinlock);
return VINF_SUCCESS;
}
/**
* Releases a reference to a RTMPNTONSPECIFICARGS heap allocation, freeing it
* when the last reference is released.
*/
DECLINLINE(void) rtMpNtOnSpecificRelease(PRTMPNTONSPECIFICARGS pArgs)
{
uint32_t cRefs = ASMAtomicDecU32(&pArgs->cRefs);
AssertMsg(cRefs <= 1, ("cRefs=%#x\n", cRefs));
if (cRefs == 0)
ExFreePool(pArgs);
}
/**
* Release a reference, destroy the thing if necessary.
*
* @param pThis The semaphore.
*/
DECLINLINE(void) rtR0SemEventMultiHkuRelease(PRTSEMEVENTMULTIINTERNAL pThis)
{
if (RT_UNLIKELY(ASMAtomicDecU32(&pThis->cRefs) == 0))
{
Assert(pThis->u32Magic != RTSEMEVENTMULTI_MAGIC);
RTMemFree(pThis);
}
}
uint32_t i_release()
{
uint32_t cRefs = ASMAtomicDecU32(&m_cRefs);
Assert(cRefs < _1K);
if (cRefs == 0)
delete this;
return cRefs;
}
void VBoxDispVHWACommandRelease(PVBOXDISPDEV pDev, VBOXVHWACMD* pCmd)
{
uint32_t cRefs = ASMAtomicDecU32(&pCmd->cRefs);
Assert(cRefs < UINT32_MAX / 2);
if(!cRefs)
{
VBoxDispVHWACommandFree(pDev, pCmd);
}
}
static uint32_t renderspuContextRelease( ContextInfo *context )
{
uint32_t cRefs = ASMAtomicDecU32(&context->cRefs);
if (!cRefs)
renderspuDestroyContextTerminate( context );
else
CRASSERT(cRefs < UINT32_MAX/2);
return cRefs;
}
static void vboxVhwaHlpOverlayListRemove(PVBOXMP_DEVEXT pDevExt, PVBOXWDDM_OVERLAY pOverlay)
{
PVBOXWDDM_SOURCE pSource = &pDevExt->aSources[pOverlay->VidPnSourceId];
KIRQL OldIrql;
KeAcquireSpinLock(&pSource->OverlayListLock, &OldIrql);
ASMAtomicDecU32(&pSource->cOverlays);
RemoveEntryList(&pOverlay->ListEntry);
KeReleaseSpinLock(&pSource->OverlayListLock, OldIrql);
}
/**
* Release a reference, destroy the thing if necessary.
*
* @param pThis The semaphore.
*/
DECLINLINE(void) rtR0SemEventMultiDarwinRelease(PRTSEMEVENTMULTIINTERNAL pThis)
{
if (RT_UNLIKELY(ASMAtomicDecU32(&pThis->cRefs) == 0))
{
Assert(pThis->u32Magic != RTSEMEVENTMULTI_MAGIC);
lck_spin_destroy(pThis->pSpinlock, g_pDarwinLockGroup);
RTMemFree(pThis);
}
}
DECLINLINE(void) vbvaVhwaCommandRelease(PVBOXMP_DEVEXT pDevExt, VBOXVHWACMD* pCmd)
{
uint32_t cRefs = ASMAtomicDecU32(&pCmd->cRefs);
Assert(cRefs < UINT32_MAX / 2);
if(!cRefs)
{
VBoxHGSMIBufferFree(&VBoxCommonFromDeviceExt(pDevExt)->guestCtx, pCmd);
}
}
DECLINLINE(VOID) vboxWddmSwapchainRelease(PVBOXWDDM_SWAPCHAIN pSwapchain)
{
const uint32_t cRefs = ASMAtomicDecU32(&pSwapchain->cRefs);
Assert(cRefs < UINT32_MAX/2);
if (!cRefs)
{
vboxWddmMemFree(pSwapchain);
}
}
/**
* Removes the thread from the AVL tree, call owns the tree lock
* and has cleared the RTTHREADINT_FLAG_IN_TREE bit.
*
* @param pThread The thread to remove.
*/
static void rtThreadRemoveLocked(PRTTHREADINT pThread)
{
PRTTHREADINT pThread2 = (PRTTHREADINT)RTAvlPVRemove(&g_ThreadTree, pThread->Core.Key);
#if !defined(RT_OS_OS2) /** @todo this asserts for threads created by NSPR */
AssertMsg(pThread2 == pThread, ("%p(%s) != %p (%p/%s)\n", pThread2, pThread2 ? pThread2->szName : "<null>",
pThread, pThread->Core.Key, pThread->szName));
#endif
if (pThread2)
ASMAtomicDecU32(&g_cThreadInTree);
}
RTDECL(int) RTSemMutexRelease(RTSEMMUTEX hMutexSem)
{
/*
* Validate input.
*/
struct RTSEMMUTEXINTERNAL *pThis = hMutexSem;
AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
AssertReturn(pThis->u32Magic == RTSEMMUTEX_MAGIC, VERR_INVALID_HANDLE);
#ifdef RTSEMMUTEX_STRICT
int rc9 = RTLockValidatorRecExclReleaseOwner(&pThis->ValidatorRec, pThis->cNesting == 1);
if (RT_FAILURE(rc9))
return rc9;
#endif
/*
* Check if nested.
*/
pthread_t Self = pthread_self();
if (RT_UNLIKELY( pThis->Owner != Self
|| pThis->cNesting == 0))
{
AssertMsgFailed(("Not owner of mutex %p!! Self=%08x Owner=%08x cNesting=%d\n",
pThis, Self, pThis->Owner, pThis->cNesting));
return VERR_NOT_OWNER;
}
/*
* If nested we'll just pop a nesting.
*/
if (pThis->cNesting > 1)
{
ASMAtomicDecU32(&pThis->cNesting);
return VINF_SUCCESS;
}
/*
* Clear the state. (cNesting == 1)
*/
pThis->Owner = (pthread_t)-1;
ASMAtomicWriteU32(&pThis->cNesting, 0);
/*
* Unlock mutex semaphore.
*/
int rc = pthread_mutex_unlock(&pThis->Mutex);
if (RT_UNLIKELY(rc))
{
AssertMsgFailed(("Failed to unlock mutex sem %p, rc=%d.\n", hMutexSem, rc)); NOREF(rc);
return RTErrConvertFromErrno(rc);
}
return VINF_SUCCESS;
}
RTDECL(int) RTSemMutexRelease(RTSEMMUTEX hMutexSem)
{
/*
* Validate input.
*/
struct RTSEMMUTEXINTERNAL *pThis = hMutexSem;
AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
AssertReturn(pThis->u32Magic == RTSEMMUTEX_MAGIC, VERR_INVALID_HANDLE);
#ifdef RTSEMMUTEX_STRICT
int rc9 = RTLockValidatorRecExclReleaseOwner(&pThis->ValidatorRec, pThis->cNestings == 1);
if (RT_FAILURE(rc9))
return rc9;
#endif
/*
* Check if nested.
*/
pthread_t Self = pthread_self();
if (RT_UNLIKELY( pThis->Owner != Self
|| pThis->cNestings == 0))
{
AssertMsgFailed(("Not owner of mutex %p!! Self=%08x Owner=%08x cNestings=%d\n",
pThis, Self, pThis->Owner, pThis->cNestings));
return VERR_NOT_OWNER;
}
/*
* If nested we'll just pop a nesting.
*/
if (pThis->cNestings > 1)
{
ASMAtomicDecU32(&pThis->cNestings);
return VINF_SUCCESS;
}
/*
* Clear the state. (cNestings == 1)
*/
pThis->Owner = (pthread_t)~0;
ASMAtomicWriteU32(&pThis->cNestings, 0);
/*
* Release the mutex.
*/
int32_t iNew = ASMAtomicDecS32(&pThis->iState);
if (RT_UNLIKELY(iNew != 0))
{
/* somebody is waiting, try wake up one of them. */
ASMAtomicXchgS32(&pThis->iState, 0);
(void)sys_futex(&pThis->iState, FUTEX_WAKE, 1, NULL, NULL, 0);
}
return VINF_SUCCESS;
}
/**
* Releases the instance data.
*
* @param pThis The instance data.
*/
static void rtDbgModDeferredReleaseInstanceData(PRTDBGMODDEFERRED pThis)
{
AssertPtr(pThis);
uint32_t cRefs = ASMAtomicDecU32(&pThis->cRefs); Assert(cRefs < 8);
if (!cRefs)
{
RTDbgCfgRelease(pThis->hDbgCfg);
pThis->hDbgCfg = NIL_RTDBGCFG;
RTMemFree(pThis);
}
}
/**
* Close a file device previously opened by VBoxDrvFreeBSDOpen
*
* @returns 0 on success.
* @param pDev The device.
* @param fFile The file descriptor flags.
* @param DevType The device type (CHR.
* @param pTd The calling thread.
*/
static void VBoxDrvFreeBSDDtr(void *pData)
{
PSUPDRVSESSION pSession = pData;
Log(("VBoxDrvFreeBSDDtr: pSession=%p\n", pSession));
/*
* Close the session.
*/
supdrvSessionRelease(pSession);
ASMAtomicDecU32(&g_cUsers);
}
uint32_t SecretKey::release()
{
uint32_t cRefs = ASMAtomicDecU32(&m_cRefs);
if (!cRefs)
{
int rc = RTMemSaferScramble(m_pbKey, m_cbKey);
AssertRC(rc);
}
return cRefs;
}
RTDECL(int) RTSemRWReleaseRead(RTSEMRW hRWSem)
{
/*
* Validate input.
*/
struct RTSEMRWINTERNAL *pThis = hRWSem;
AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
AssertMsgReturn(pThis->u32Magic == RTSEMRW_MAGIC,
("pThis=%p u32Magic=%#x\n", pThis, pThis->u32Magic),
VERR_INVALID_HANDLE);
/*
* Check if it's the writer.
*/
pthread_t Self = pthread_self();
pthread_t Writer;
ATOMIC_GET_PTHREAD_T(&pThis->Writer, &Writer);
if (Writer == Self)
{
AssertMsgReturn(pThis->cWriterReads > 0, ("pThis=%p\n", pThis), VERR_NOT_OWNER);
#ifdef RTSEMRW_STRICT
int rc9 = RTLockValidatorRecExclUnwindMixed(&pThis->ValidatorWrite, &pThis->ValidatorRead.Core);
if (RT_FAILURE(rc9))
return rc9;
#endif
pThis->cWriterReads--;
return VINF_SUCCESS;
}
/*
* Try unlock it.
*/
#ifdef RTSEMRW_STRICT
int rc9 = RTLockValidatorRecSharedCheckAndRelease(&pThis->ValidatorRead, RTThreadSelf());
if (RT_FAILURE(rc9))
return rc9;
#endif
#ifdef RT_OS_LINUX /* glibc (at least 2.8) may screw up when unlocking a lock we don't own. */
if (ASMAtomicReadU32(&pThis->cReaders) == 0)
{
AssertMsgFailed(("Not owner of %p\n", pThis));
return VERR_NOT_OWNER;
}
#endif
ASMAtomicDecU32(&pThis->cReaders);
int rc = pthread_rwlock_unlock(&pThis->RWLock);
if (rc)
{
ASMAtomicIncU32(&pThis->cReaders);
AssertMsgFailed(("Failed read unlock read-write sem %p, rc=%d.\n", hRWSem, rc));
return RTErrConvertFromErrno(rc);
}
return VINF_SUCCESS;
}
/**
* Release a reference to the module.
*
* When the reference count reaches zero, the module is destroyed.
*
* @returns New reference count, UINT32_MAX on invalid handle (asserted).
*
* @param hDbgMod The module handle. The NIL handle is quietly ignored
* and 0 is returned.
*
* @remarks Will not take any locks.
*/
RTDECL(uint32_t) RTDbgModRelease(RTDBGMOD hDbgMod)
{
if (hDbgMod == NIL_RTDBGMOD)
return 0;
PRTDBGMODINT pDbgMod = hDbgMod;
RTDBGMOD_VALID_RETURN_RC(pDbgMod, UINT32_MAX);
uint32_t cRefs = ASMAtomicDecU32(&pDbgMod->cRefs);
if (!cRefs)
rtDbgModDestroy(pDbgMod);
return cRefs;
}
INTNETR3DECL(int) SUPR0ObjRelease(void *pvObj, PSUPDRVSESSION pSession)
{
RTTEST_CHECK_RET(g_hTest, pSession == g_pSession, VERR_INVALID_PARAMETER);
POBJREF pRef = (POBJREF)pvObj;
if (!ASMAtomicDecU32(&pRef->cRefs))
{
pRef->pfnDestructor(pRef, pRef->pvUser1, pRef->pvUser2);
RTTestGuardedFree(g_hTest, pRef);
return VINF_OBJECT_DESTROYED;
}
return VINF_SUCCESS;
}
/**
* Destroys the per thread data.
*
* @param pThread The thread to destroy.
*/
static void rtThreadDestroy(PRTTHREADINT pThread)
{
RTSEMEVENTMULTI hEvt1, hEvt2;
/*
* Remove it from the tree and mark it as dead.
*
* Threads that has seen rtThreadTerminate and should already have been
* removed from the tree. There is probably no thread that should
* require removing here. However, be careful making sure that cRefs
* isn't 0 if we do or we'll blow up because the strict locking code
* will be calling us back.
*/
if (ASMBitTest(&pThread->fIntFlags, RTTHREADINT_FLAG_IN_TREE_BIT))
{
ASMAtomicIncU32(&pThread->cRefs);
rtThreadRemove(pThread);
ASMAtomicDecU32(&pThread->cRefs);
}
/*
* Invalidate the thread structure.
*/
#ifdef IN_RING3
rtLockValidatorSerializeDestructEnter();
rtLockValidatorDeletePerThread(&pThread->LockValidator);
#endif
#ifdef RT_WITH_ICONV_CACHE
rtStrIconvCacheDestroy(pThread);
#endif
ASMAtomicXchgU32(&pThread->u32Magic, RTTHREADINT_MAGIC_DEAD);
ASMAtomicWritePtr(&pThread->Core.Key, (void *)NIL_RTTHREAD);
pThread->enmType = RTTHREADTYPE_INVALID;
hEvt1 = pThread->EventUser;
pThread->EventUser = NIL_RTSEMEVENTMULTI;
hEvt2 = pThread->EventTerminated;
pThread->EventTerminated = NIL_RTSEMEVENTMULTI;
#ifdef IN_RING3
rtLockValidatorSerializeDestructLeave();
#endif
/*
* Destroy semaphore resources and free the bugger.
*/
RTSemEventMultiDestroy(hEvt1);
if (hEvt2 != NIL_RTSEMEVENTMULTI)
RTSemEventMultiDestroy(hEvt2);
rtThreadNativeDestroy(pThread);
RTMemFree(pThread);
}
static DECLCALLBACK(void) AsyncTaskCompleted(PVM pVM, void *pvUser, void *pvUser2, int rc)
{
LogFlow((TESTCASE ": %s: pVM=%p pvUser=%p pvUser2=%p\n", __FUNCTION__, pVM, pvUser, pvUser2));
NOREF(rc);
uint32_t cTasksStillLeft = ASMAtomicDecU32(&g_cTasksLeft);
if (!cTasksStillLeft)
{
/* All tasks processed. Wakeup main. */
RTSemEventSignal(g_FinishedEventSem);
}
}
RTDECL(uint32_t) RTKrnlModInfoRelease(RTKRNLMODINFO hKrnlModInfo)
{
PRTKRNLMODINFOINT pThis = hKrnlModInfo;
if (!pThis)
return 0;
AssertPtrReturn(pThis, UINT32_MAX);
uint32_t cRefs = ASMAtomicDecU32(&pThis->cRefs);
AssertMsg(cRefs < _1M, ("%#x %p\n", cRefs, pThis));
if (cRefs == 0)
rtKrnlModInfoDestroy(pThis);
return cRefs;
}
/**
* Prepare non-blocking mode.
*
* @returns VINF_SUCCESS
* @retval VERR_WRONG_ORDER
* @retval VERR_INTERNAL_ERROR_4
*
* @param pThis The pipe handle.
*/
static int rtPipeTryNonBlocking(RTPIPEINTERNAL *pThis)
{
/*
* Update the state.
*/
for (;;)
{
uint32_t u32State = ASMAtomicReadU32(&pThis->u32State);
uint32_t const u32StateOld = u32State;
uint32_t const cUsers = (u32State & RTPIPE_POSIX_USERS_MASK);
if (!(u32State & RTPIPE_POSIX_BLOCKING))
{
AssertReturn(cUsers < RTPIPE_POSIX_USERS_MASK / 2, VERR_INTERNAL_ERROR_4);
u32State &= ~RTPIPE_POSIX_USERS_MASK;
u32State |= cUsers + 1;
if (ASMAtomicCmpXchgU32(&pThis->u32State, u32State, u32StateOld))
{
if (u32State & RTPIPE_POSIX_SWITCHING)
break;
return VINF_SUCCESS;
}
}
else if (cUsers == 0)
{
u32State = 1 | RTPIPE_POSIX_SWITCHING;
if (ASMAtomicCmpXchgU32(&pThis->u32State, u32State, u32StateOld))
break;
}
else
return VERR_WRONG_ORDER;
ASMNopPause();
}
/*
* Do the switching.
*/
int fFlags = fcntl(pThis->fd, F_GETFL, 0);
if (fFlags != -1)
{
if ( (fFlags & O_NONBLOCK)
|| fcntl(pThis->fd, F_SETFL, fFlags | O_NONBLOCK) != -1)
{
ASMAtomicBitClear(&pThis->u32State, RTPIPE_POSIX_SWITCHING_BIT);
return VINF_SUCCESS;
}
}
ASMAtomicDecU32(&pThis->u32State);
return RTErrConvertFromErrno(errno);
}
VBGLR3DECL(void) VbglR3Term(void)
{
/*
* Decrement the reference count and see if we're the last one out.
*/
uint32_t cInits = ASMAtomicDecU32(&g_cInits);
if (cInits > 0)
return;
#if !defined(VBOX_VBGLR3_XSERVER)
AssertReturnVoid(!cInits);
# if defined(RT_OS_WINDOWS)
HANDLE hFile = g_hFile;
g_hFile = INVALID_HANDLE_VALUE;
AssertReturnVoid(hFile != INVALID_HANDLE_VALUE);
BOOL fRc = CloseHandle(hFile);
Assert(fRc); NOREF(fRc);
# elif defined(RT_OS_OS2)
RTFILE File = g_File;
g_File = NIL_RTFILE;
AssertReturnVoid(File != NIL_RTFILE);
APIRET rc = DosClose((uintptr_t)File);
AssertMsg(!rc, ("%ld\n", rc));
#elif defined(RT_OS_DARWIN)
io_connect_t uConnection = g_uConnection;
RTFILE hFile = g_File;
g_uConnection = 0;
g_File = NIL_RTFILE;
kern_return_t kr = IOServiceClose(uConnection);
AssertMsg(kr == kIOReturnSuccess, ("%#x (%d)\n", kr, kr));
int rc = RTFileClose(hFile);
AssertRC(rc);
# else /* The IPRT case. */
RTFILE File = g_File;
g_File = NIL_RTFILE;
AssertReturnVoid(File != NIL_RTFILE);
int rc = RTFileClose(File);
AssertRC(rc);
# endif
#else /* VBOX_VBGLR3_XSERVER */
int File = g_File;
g_File = -1;
if (File == -1)
return;
xf86close(File);
#endif /* VBOX_VBGLR3_XSERVER */
}
/**
* @callback_method_impl{dtrace_pops_t,dtps_disable}
*/
static void vboxDtPOps_Disable(void *pvProv, dtrace_id_t idProbe, void *pvProbe)
{
PSUPDRVVDTPROVIDERCORE pProv = (PSUPDRVVDTPROVIDERCORE)pvProv;
AssertPtrReturnVoid(pProv);
LOG_DTRACE(("%s: %p / %p - %#x / %p\n", __FUNCTION__, pProv, pProv->TracerData.DTrace.idProvider, idProbe, pvProbe));
AssertPtrReturnVoid(pProv->TracerData.DTrace.idProvider);
if (!pProv->TracerData.DTrace.fZombie)
{
uint32_t idxProbeLoc = (uint32_t)(uintptr_t)pvProbe;
PVTGPROBELOC32 pProbeLocEn = (PVTGPROBELOC32)( (uintptr_t)pProv->pvProbeLocsEn + idxProbeLoc * pProv->cbProbeLocsEn);
PCVTGPROBELOC pProbeLocRO = (PVTGPROBELOC)&pProv->paProbeLocsRO[idxProbeLoc];
PCVTGDESCPROBE pProbeDesc = pProbeLocRO->pProbe;
uint32_t const idxProbe = pProbeDesc->idxEnabled;
if (!pProv->fUmod)
{
if (pProbeLocEn->fEnabled)
{
pProbeLocEn->fEnabled = 0;
ASMAtomicDecU32(&pProv->pacProbeEnabled[idxProbe]);
}
}
else
{
/* Update kernel mode structure */
if (pProv->paR0ProbeLocs[idxProbeLoc].fEnabled)
{
pProv->paR0ProbeLocs[idxProbeLoc].fEnabled = 0;
ASMAtomicDecU32(&pProv->paR0Probes[idxProbe].cEnabled);
}
/* Update user mode structure. */
pProbeLocEn->fEnabled = 0;
pProv->pacProbeEnabled[idxProbe] = pProv->paR0Probes[idxProbe].cEnabled;
}
}
}
RTDECL(int) RTSemMutexRelease(RTSEMMUTEX hMutexSem)
{
/*
* Validate.
*/
RTSEMMUTEXINTERNAL *pThis = hMutexSem;
AssertPtrReturn(pThis, VERR_INVALID_HANDLE);
AssertReturn(pThis->u32Magic == RTSEMMUTEX_MAGIC, VERR_INVALID_HANDLE);
/*
* Check ownership and recursions.
*/
RTNATIVETHREAD hNativeSelf = RTThreadNativeSelf();
RTNATIVETHREAD hNativeOwner;
ASMAtomicReadHandle(&pThis->hNativeOwner, &hNativeOwner);
if (RT_UNLIKELY(hNativeOwner != hNativeSelf))
{
AssertMsgFailed(("Not owner of mutex %p!! hNativeSelf=%RTntrd Owner=%RTntrd cRecursions=%d\n",
pThis, hNativeSelf, hNativeOwner, pThis->cRecursions));
return VERR_NOT_OWNER;
}
if (pThis->cRecursions > 1)
{
#ifdef RTSEMMUTEX_STRICT
int rc9 = RTLockValidatorRecExclUnwind(&pThis->ValidatorRec);
if (RT_FAILURE(rc9))
return rc9;
#endif
ASMAtomicDecU32(&pThis->cRecursions);
return VINF_SUCCESS;
}
/*
* Unlock mutex semaphore.
*/
#ifdef RTSEMMUTEX_STRICT
int rc9 = RTLockValidatorRecExclReleaseOwner(&pThis->ValidatorRec, false);
if (RT_FAILURE(rc9))
return rc9;
#endif
ASMAtomicWriteU32(&pThis->cRecursions, 0);
ASMAtomicWriteHandle(&pThis->hNativeOwner, NIL_RTNATIVETHREAD);
if (ReleaseMutex(pThis->hMtx))
return VINF_SUCCESS;
int rc = RTErrConvertFromWin32(GetLastError());
AssertMsgFailed(("%p/%p, rc=%Rrc lasterr=%d\n", pThis, pThis->hMtx, rc, GetLastError()));
return rc;
}
