Exemplo n.º 1
0
// static 
void Mark(PRUint32 aType, void * aItem, const char * aText, const char * aText2)
{
#ifdef MOZ_VISUAL_EVENT_TRACER
  if (!gInitialized)
    return;

  if (aType == eNone)
    return;

  if (!CheckEventFilters(aType, aItem, aText)) // Events use just aText
    return;

  RecordBatch * threadLogPrivate = static_cast<RecordBatch *>(
      PR_GetThreadPrivate(gThreadPrivateIndex));
  if (!threadLogPrivate) {
    // Deletion is made by the flushing thread
    threadLogPrivate = new RecordBatch();
    PR_SetThreadPrivate(gThreadPrivateIndex, threadLogPrivate);
  }

  Record * record = threadLogPrivate->mNextRecord;
  record->mType = aType;
  record->mTime = (mozilla::TimeStamp::Now() - gProfilerStart).ToMilliseconds();
  record->mItem = aItem;
  record->mText = PL_strdup(aText);
  record->mText2 = aText2 ? PL_strdup(aText2) : nsnull;

  ++threadLogPrivate->mNextRecord;
  if (threadLogPrivate->mNextRecord == threadLogPrivate->mRecordsTail) {
    // This calls RecordBatch::FlushBatch(threadLogPrivate)
    PR_SetThreadPrivate(gThreadPrivateIndex, nsnull);
  }
#endif
}
Exemplo n.º 2
0
/*
 * Get current thread-local JSThread info, creating one if it doesn't exist.
 * Each thread has a unique JSThread pointer.
 *
 * Since we are dealing with thread-local data, no lock is needed.
 *
 * Return a pointer to the thread local info, NULL if the system runs out
 * of memory, or it failed to set thread private data (neither case is very
 * likely; both are probably due to out-of-memory).  It is up to the caller
 * to report an error, if possible.
 */
JSThread *
js_GetCurrentThread(JSRuntime *rt)
{
    JSThread *thread;

    thread = (JSThread *)PR_GetThreadPrivate(threadTPIndex);
    if (!thread) {
        thread = (JSThread *) calloc(1, sizeof(JSThread));
        if (!thread)
            return NULL;

        if (PR_FAILURE == PR_SetThreadPrivate(threadTPIndex, thread)) {
            free(thread);
            return NULL;
        }

        JS_INIT_CLIST(&thread->contextList);
        thread->id = js_CurrentThreadId();

        /* js_SetContextThread initialize gcFreeLists as necessary. */
#ifdef DEBUG
        memset(thread->gcFreeLists, JS_FREE_PATTERN,
               sizeof(thread->gcFreeLists));
#endif
    }
    return thread;
}
Exemplo n.º 3
0
// static 
void Shutdown()
{
#ifdef MOZ_VISUAL_EVENT_TRACER
  MOZ_EVENT_TRACER_MARK(gFlushingThread, "Profiling End");

  // This must be called after all other threads had been shut down 
  // (i.e. their private data had been 'released').

  // Release the private data of this thread to flush all the remaning writes.
  PR_SetThreadPrivate(gThreadPrivateIndex, nsnull);

  if (gFlushingThread) {
    {
      MonitorAutoLock mon(*gMonitor);
      gInitialized = false;
      gStopFlushingThread = true;
      mon.Notify();
    }

    PR_JoinThread(gFlushingThread);
    gFlushingThread = nsnull;
  }

  if (gMonitor) {
    delete gMonitor;
    gMonitor = nsnull;
  }

  if (gEventFilter) {
    delete gEventFilter;
    gEventFilter = nsnull;
  }
#endif
}
Exemplo n.º 4
0
void
nsThreadManager::Shutdown()
{
  NS_ASSERTION(NS_IsMainThread(), "shutdown not called from main thread");

  // Prevent further access to the thread manager (no more new threads!)
  //
  // XXX What happens if shutdown happens before NewThread completes?
  //     Fortunately, NewThread is only called on the main thread for now.
  //
  mInitialized = PR_FALSE;

  // Empty the main thread event queue before we begin shutting down threads.
  NS_ProcessPendingEvents(mMainThread);

  // We gather the threads from the hashtable into a list, so that we avoid
  // holding the hashtable lock while calling nsIThread::Shutdown.
  nsThreadArray threads;
  {
    nsAutoLock lock(mLock);
    mThreadsByPRThread.Enumerate(AppendAndRemoveThread, &threads);
  }

  // It's tempting to walk the list of threads here and tell them each to stop
  // accepting new events, but that could lead to badness if one of those
  // threads is stuck waiting for a response from another thread.  To do it
  // right, we'd need some way to interrupt the threads.
  // 
  // Instead, we process events on the current thread while waiting for threads
  // to shutdown.  This means that we have to preserve a mostly functioning
  // world until such time as the threads exit.

  // Shutdown all threads that require it (join with threads that we created).
  for (PRUint32 i = 0; i < threads.Length(); ++i) {
    nsThread *thread = threads[i];
    if (thread->ShutdownRequired())
      thread->Shutdown();
  }

  // In case there are any more events somehow...
  NS_ProcessPendingEvents(mMainThread);

  // There are no more background threads at this point.

  // Clear the table of threads.
  {
    nsAutoLock lock(mLock);
    mThreadsByPRThread.Clear();
  }

  // Release main thread object.
  mMainThread = nsnull;

  // Remove the TLS entry for the main thread.
  PR_SetThreadPrivate(mCurThreadIndex, nsnull);

  // We don't need this lock anymore.
  PR_DestroyLock(mLock);
  mLock = nsnull;
}
Exemplo n.º 5
0
static TimelineThreadData *GetThisThreadData()
{
    NS_ABORT_IF_FALSE(gTLSIndex!=BAD_TLS_INDEX, "Our TLS not initialized");
    TimelineThreadData *new_data = nsnull;
    TimelineThreadData *data = (TimelineThreadData *)PR_GetThreadPrivate(gTLSIndex);
    if (data == nsnull) {
        // First request for this thread - allocate it.
        new_data = new TimelineThreadData();
        if (!new_data)
            goto done;

        // Fill it
        new_data->timers = PL_NewHashTable(100, PL_HashString, PL_CompareStrings,
                                 PL_CompareValues, NULL, NULL);
        if (new_data->timers==NULL)
            goto done;
        new_data->initTime = PR_Now();
        NS_WARN_IF_FALSE(!gTimelineDisabled,
                         "Why are we creating new state when disabled?");
        new_data->disabled = PR_FALSE;
        data = new_data;
        new_data = nsnull;
        PR_SetThreadPrivate(gTLSIndex, data);
    }
done:
    if (new_data) // eeek - error during creation!
        delete new_data;
    NS_WARN_IF_FALSE(data, "TimelineService could not get thread-local data");
    return data;
}
Exemplo n.º 6
0
NSS_IMPLEMENT void
nss_DestroyErrorStack ( void)
{
  if( INVALID_TPD_INDEX != error_stack_index ) {
    PR_SetThreadPrivate(error_stack_index, NULL);
  }
  return;
}
Exemplo n.º 7
0
// static
XPCPerThreadData*
XPCPerThreadData::GetDataImpl(JSContext *cx)
{
    XPCPerThreadData* data;

    if(!gLock)
    {
        gLock = PR_NewLock();
        if(!gLock)
            return nsnull;
    }

    if(gTLSIndex == BAD_TLS_INDEX)
    {
        nsAutoLock lock(gLock);
        // check again now that we have the lock...
        if(gTLSIndex == BAD_TLS_INDEX)
        {
            if(PR_FAILURE ==
               PR_NewThreadPrivateIndex(&gTLSIndex, xpc_ThreadDataDtorCB))
            {
                NS_ERROR("PR_NewThreadPrivateIndex failed!");
                gTLSIndex = BAD_TLS_INDEX;
                return nsnull;
            }
        }
    }

    data = (XPCPerThreadData*) PR_GetThreadPrivate(gTLSIndex);
    if(!data)
    {
        data = new XPCPerThreadData();
        if(!data || !data->IsValid())
        {
            NS_ERROR("new XPCPerThreadData() failed!");
            if(data)
                delete data;
            return nsnull;
        }
        if(PR_FAILURE == PR_SetThreadPrivate(gTLSIndex, data))
        {
            NS_ERROR("PR_SetThreadPrivate failed!");
            delete data;
            return nsnull;
        }
    }

    if(cx && !sMainJSThread && NS_IsMainThread())
    {
        sMainJSThread = cx->thread;

        sMainThreadData = data;

        sMainThreadData->mThread = PR_GetCurrentThread();
    }

    return data;
}
Exemplo n.º 8
0
//-------------------------------------------------------------------------
//
// destructor
//
//-------------------------------------------------------------------------
nsToolkit::~nsToolkit()
{
  if (mSharedGC) {
    gdk_gc_unref(mSharedGC);
  }

  // Remove the TLS reference to the toolkit...
  PR_SetThreadPrivate(gToolkitTLSIndex, nsnull);
}
Exemplo n.º 9
0
void
nsTraceRefcnt::SetActivityIsLegal(bool aLegal)
{
  if (gActivityTLS == BAD_TLS_INDEX) {
    PR_NewThreadPrivateIndex(&gActivityTLS, nullptr);
  }

  PR_SetThreadPrivate(gActivityTLS, reinterpret_cast<void*>(!aLegal));
}
// Free the thread state for the current thread
// (Presumably previously create with a call to
// PyXPCOM_ThreadState_Ensure)
void PyXPCOM_ThreadState_Free()
{
	ThreadData *pData = (ThreadData *)PR_GetThreadPrivate(tlsIndex);
	if (!pData) return;
	PyThreadState *thisThreadState = pData->ts;
	PyThreadState_Delete(thisThreadState);
	PR_SetThreadPrivate(tlsIndex, NULL);
	nsMemory::Free(pData);
}
Exemplo n.º 11
0
void nsAutoCMonitor::Exit()
{
#ifdef DEBUG
    (void) PR_SetThreadPrivate(LockStackTPI, mDown);
#endif
    PRStatus status = PR_CExitMonitor(mLockObject);
    NS_ASSERTION(status == PR_SUCCESS, "PR_CExitMonitor failed");
    mLockCount -= 1;
}
Exemplo n.º 12
0
void
nsTraceRefcntImpl::SetActivityIsLegal(bool aLegal)
{
#ifdef NS_IMPL_REFCNT_LOGGING
  if (gActivityTLS == BAD_TLS_INDEX)
    PR_NewThreadPrivateIndex(&gActivityTLS, nullptr);

  PR_SetThreadPrivate(gActivityTLS, NS_INT32_TO_PTR(!aLegal));
#endif
}
Exemplo n.º 13
0
void nsExceptionService::Shutdown()
{
  mProviders.Reset();
  if (lock) {
    DropAllThreads();
    PR_DestroyLock(lock);
    lock = nsnull;
  }
  PR_SetThreadPrivate(tlsIndex, nsnull);
}
Exemplo n.º 14
0
nsAutoLockBase::nsAutoLockBase(void* addr, nsAutoLockType type)
{
    if (LockStackTPI == PRUintn(-1))
        InitAutoLockStatics();

    nsAutoLockBase* stackTop =
        (nsAutoLockBase*) PR_GetThreadPrivate(LockStackTPI);
    if (stackTop) {
        if (stackTop->mAddr == addr) {
            // Ignore reentry: it's legal for monitors, and NSPR will assert
            // if you reenter a PRLock.
        } else if (!addr) {
            // Ignore null addresses: the caller promises not to use the
            // lock at all, and NSPR will assert if you enter it.
        } else {
            const void* node =
#ifdef NS_TRACE_MALLOC_XXX
                NS_GetStackTrace(1)
#else
                nsnull
#endif
                ;
            nsNamedVector* vec1;
            nsNamedVector* vec2;
            PRUint32 i2;

            if (!WellOrdered(stackTop->mAddr, addr, node, &i2, &vec1, &vec2)) {
                char buf[128];
                PR_snprintf(buf, sizeof buf,
                            "Potential deadlock between %s%s@%p and %s%s@%p",
                            vec1->mName ? vec1->mName : "",
                            LockTypeNames[stackTop->mType],
                            stackTop->mAddr,
                            vec2->mName ? vec2->mName : "",
                            LockTypeNames[type],
                            addr);
#ifdef NS_TRACE_MALLOC_XXX
                fprintf(stderr, "\n*** %s\n\nCurrent stack:\n", buf);
                NS_DumpStackTrace(node, stderr);

                fputs("\nPrevious stack:\n", stderr);
                NS_DumpStackTrace(vec2->mInnerSites.ElementAt(i2), stderr);
                putc('\n', stderr);
#endif
                NS_ERROR(buf);
            }
        }
    }

    mAddr = addr;
    mDown = stackTop;
    mType = type;
    if (mAddr)
        (void) PR_SetThreadPrivate(LockStackTPI, this);
}
Exemplo n.º 15
0
void
nsTraceRefcnt::SetActivityIsLegal(bool aLegal)
{
#ifdef NS_IMPL_REFCNT_LOGGING
  if (gActivityTLS == BAD_TLS_INDEX) {
    PR_NewThreadPrivateIndex(&gActivityTLS, nullptr);
  }

  PR_SetThreadPrivate(gActivityTLS, reinterpret_cast<void*>(!aLegal));
#endif
}
Exemplo n.º 16
0
void
nsThreadManager::UnregisterCurrentThread(nsThread *thread)
{
  NS_ASSERTION(thread->GetPRThread() == PR_GetCurrentThread(), "bad thread");

  nsAutoLock lock(mLock);

  mThreadsByPRThread.Remove(thread->GetPRThread());

  PR_SetThreadPrivate(mCurThreadIndex, nsnull);
  // Ref-count balanced via ReleaseObject
}
Exemplo n.º 17
0
//------------------------------------------------------------------------- 
// 
// Return the nsIToolkit for the current thread.  If a toolkit does not 
// yet exist, then one will be created... 
// 
//------------------------------------------------------------------------- 
NS_METHOD NS_GetCurrentToolkit(nsIToolkit* *aResult) 
{ 
  nsIToolkit* toolkit = nsnull; 
  nsresult rv = NS_OK; 
  PRStatus status; 
#ifdef DEBUG
  printf("TK-GetCTK\n");
#endif
  // Create the TLS index the first time through... 
  if (0 == gToolkitTLSIndex)  
  { 
    status = PR_NewThreadPrivateIndex(&gToolkitTLSIndex, NULL); 
    if (PR_FAILURE == status) 
    { 
      rv = NS_ERROR_FAILURE; 
    } 
  } 

  if (NS_SUCCEEDED(rv)) 
  { 
    toolkit = (nsIToolkit*)PR_GetThreadPrivate(gToolkitTLSIndex); 

    // 
    // Create a new toolkit for this thread... 
    // 
    if (!toolkit) 
    { 
      toolkit = new nsToolkit(); 

      if (!toolkit) 
      { 
        rv = NS_ERROR_OUT_OF_MEMORY; 
      } 
      else 
      { 
        NS_ADDREF(toolkit); 
        toolkit->Init(PR_GetCurrentThread()); 
        // 
        // The reference stored in the TLS is weak.  It is removed in the 
        // nsToolkit destructor... 
        // 
        PR_SetThreadPrivate(gToolkitTLSIndex, (void*)toolkit); 
      } 
    } 
    else 
    { 
      NS_ADDREF(toolkit); 
    } 
    *aResult = toolkit; 
  } 

  return rv; 
} 
Exemplo n.º 18
0
void
nsThreadManager::RegisterCurrentThread(nsThread *thread)
{
  NS_ASSERTION(thread->GetPRThread() == PR_GetCurrentThread(), "bad thread");

  nsAutoLock lock(mLock);

  mThreadsByPRThread.Put(thread->GetPRThread(), thread);  // XXX check OOM?

  NS_ADDREF(thread);  // for TLS entry
  PR_SetThreadPrivate(mCurThreadIndex, thread);
}
Exemplo n.º 19
0
void nsAutoCMonitor::Enter()
{
#ifdef DEBUG
    nsAutoLockBase* stackTop =
        (nsAutoLockBase*) PR_GetThreadPrivate(LockStackTPI);
    NS_ASSERTION(stackTop == mDown, "non-LIFO nsAutoCMonitor::Enter");
    mDown = stackTop;
    (void) PR_SetThreadPrivate(LockStackTPI, this);
#endif
    PR_CEnterMonitor(mLockObject);
    mLockCount += 1;
}
Exemplo n.º 20
0
void nsAutoMonitor::Exit()
{
#ifdef DEBUG
    if (!mAddr) {
        NS_ERROR("It is not legal to exit a null monitor");
        return;
    }
    (void) PR_SetThreadPrivate(LockStackTPI, mDown);
#endif
    PRStatus status = PR_ExitMonitor(mMonitor);
    NS_ASSERTION(status == PR_SUCCESS, "PR_ExitMonitor failed");
    mLockCount -= 1;
}
Exemplo n.º 21
0
void nsAutoLockBase::Hide()
{
    if (!mAddr)
        return;
    nsAutoLockBase* curr = (nsAutoLockBase*) PR_GetThreadPrivate(LockStackTPI);
    nsAutoLockBase* prev = nsnull;
    while (curr != this) {
        prev = curr;
        curr = prev->mDown;
    }
    if (!prev)
        PR_SetThreadPrivate(LockStackTPI, mDown);
    else
        prev->mDown = mDown;
}
Exemplo n.º 22
0
/*
 * mempool_destroy is a callback which is set to NSPR ThreadPrivateIndex
 */
static void 
mempool_destroy()
{
	int i = 0;
	struct mempool *my_mempool;
#ifdef SHARED_MEMPOOL
	for (i = 0; MEMPOOL_END != mempool[i].mempool_name; i++) {
		struct mempool_object *object = NULL;
		if (NULL == mempool[i].mempool_mutex) {
			/* mutex is NULL; this mempool is not enabled */
			continue;
		}
		object = mempool[i].mempool_head;
		mempool[i].mempool_head = NULL;
		while (NULL != object) {
			struct mempool_object *next = object->mempool_next;
			if (NULL != mempool[i].mempool_cleanup_fn) {
				(mempool[i].mempool_cleanup_fn)((void *)object);
			}
			slapi_ch_free((void **)&object);
			object = next;
		}
		PR_DestroyLock(mempool[i].mempool_mutex);
		mempool[i].mempool_mutex = NULL;
	}
#else
	my_mempool = (struct mempool *)PR_GetThreadPrivate(mempool_index);
	if (NULL == my_mempool || my_mempool[0].mempool_name != mempool_names[0]) {
		/* mempool is not initialized */
		return;
	}
	for (i = 0; i < MAX_MEMPOOL; i++) {
		struct mempool_object *object = my_mempool[i].mempool_head;
		while (NULL != object) {
			struct mempool_object *next = object->mempool_next;
			if (NULL != my_mempool[i].mempool_cleanup_fn) {
				(my_mempool[i].mempool_cleanup_fn)((void *)object);
			}
			slapi_ch_free((void **)&object);
			object = next;
		}
		my_mempool[i].mempool_head = NULL;
		my_mempool[i].mempool_count = 0;
	}
	slapi_ch_free((void **)&my_mempool);
	PR_SetThreadPrivate (mempool_index, (void *)NULL);
#endif
}
Exemplo n.º 23
0
void nsAutoMonitor::Enter()
{
#ifdef DEBUG
    if (!mAddr) {
        NS_ERROR("It is not legal to enter a null monitor");
        return;
    }
    nsAutoLockBase* stackTop =
        (nsAutoLockBase*) PR_GetThreadPrivate(LockStackTPI);
    NS_ASSERTION(stackTop == mDown, "non-LIFO nsAutoMonitor::Enter");
    mDown = stackTop;
    (void) PR_SetThreadPrivate(LockStackTPI, this);
#endif
    PR_EnterMonitor(mMonitor);
    mLockCount += 1;
}
Exemplo n.º 24
0
/* readonly attribute nsIExceptionManager currentExceptionManager; */
NS_IMETHODIMP nsExceptionService::GetCurrentExceptionManager(nsIExceptionManager * *aCurrentScriptManager)
{
    CHECK_SERVICE_USE_OK();
    nsExceptionManager *mgr = (nsExceptionManager *)PR_GetThreadPrivate(tlsIndex);
    if (mgr == nsnull) {
        // Stick the new exception object in with no reference count.
        mgr = new nsExceptionManager(this);
        if (mgr == nsnull)
            return NS_ERROR_OUT_OF_MEMORY;
        PR_SetThreadPrivate(tlsIndex, mgr);
        // The reference count is held in the thread-list
        AddThread(mgr);
    }
    *aCurrentScriptManager = mgr;
    NS_ADDREF(*aCurrentScriptManager);
    return NS_OK;
}
Exemplo n.º 25
0
/*
 * return memory to memory pool
 * (Callback cleanup function was intented to release nested memory in the 
 *  memory area.  Initially, memory had its structure which could point
 *  other memory area.  But the current code (#else) expects no structure.
 *  Thus, the cleanup callback is not needed)
 *  The current code (#else) uses the memory pool stored in the 
 *  per-thread-private data.
 */
int
mempool_return(int type, void *object, mempool_cleanup_callback cleanup)
{
	PR_ASSERT(type >= 0 && type < MEMPOOL_END);

	if (!config_get_mempool_switch()) {
		return LDAP_SUCCESS;	/* memory pool: off */
	}
#ifdef SHARED_MEMPOOL
	if (NULL == mempool[type].mempool_mutex) {
		/* mutex is NULL; this mempool is not enabled */
		return LDAP_SUCCESS;
	}
	PR_Lock(mempool[type].mempool_mutex);
	((struct mempool_object *)object)->mempool_next = mempool[type].mempool_head;
	mempool[type].mempool_head = (struct mempool_object *)object;
	mempool[type].mempool_cleanup_fn = cleanup;
	mempool[type].mempool_count++;
	PR_Unlock(mempool[type].mempool_mutex);
	return LDAP_SUCCESS;
#else
	{
	struct mempool *my_mempool;
	int maxfreelist;
	my_mempool = (struct mempool *)PR_GetThreadPrivate(mempool_index);
	if (NULL == my_mempool || my_mempool[0].mempool_name != mempool_names[0]) {
		/* mempool is not initialized */
		mempool_init(&my_mempool);
	} 
	((struct mempool_object *)object)->mempool_next = my_mempool[type].mempool_head;
	maxfreelist = config_get_mempool_maxfreelist();
	if ((maxfreelist > 0) && (my_mempool[type].mempool_count > maxfreelist)) {
		return LDAP_UNWILLING_TO_PERFORM;
	} else {
		((struct mempool_object *)object)->mempool_next = mempool[type].mempool_head;
		my_mempool[type].mempool_head = (struct mempool_object *)object;
		my_mempool[type].mempool_cleanup_fn = cleanup;
		my_mempool[type].mempool_count++;
		PR_SetThreadPrivate (mempool_index, (void *)my_mempool);
		return LDAP_SUCCESS;
	}
	}
#endif
}
Exemplo n.º 26
0
static error_stack *
error_get_my_stack ( void)
{
  PRStatus st;
  error_stack *rv;
  PRUintn new_size;
  PRUint32 new_bytes;
  error_stack *new_stack;

  if( INVALID_TPD_INDEX == error_stack_index ) {
    st = PR_CallOnce(&error_call_once, error_once_function);
    if( PR_SUCCESS != st ) {
      return (error_stack *)NULL;
    }
  }

  rv = (error_stack *)PR_GetThreadPrivate(error_stack_index);
  if( (error_stack *)NULL == rv ) {
    /* Doesn't exist; create one */
    new_size = 16;
  } else if( rv->header.count == rv->header.space  &&
             rv->header.count  < NSS_MAX_ERROR_STACK_COUNT ) {
    /* Too small, expand it */
    new_size = PR_MIN( rv->header.space * 2, NSS_MAX_ERROR_STACK_COUNT);
  } else {
    /* Okay, return it */
    return rv;
  }

  new_bytes = (new_size * sizeof(PRInt32)) + sizeof(error_stack);
  /* Use NSPR's calloc/realloc, not NSS's, to avoid loops! */
  new_stack = PR_Calloc(1, new_bytes);
  
  if( (error_stack *)NULL != new_stack ) {
    if( (error_stack *)NULL != rv ) {
	(void)nsslibc_memcpy(new_stack,rv,rv->header.space);
    }
    new_stack->header.space = new_size;
  }

  /* Set the value, whether or not the allocation worked */
  PR_SetThreadPrivate(error_stack_index, new_stack);
  return new_stack;
}
Exemplo n.º 27
0
// static
void
XPCPerThreadData::CleanupAllThreads()
{
    // I've questioned the sense of cleaning up other threads' data from the
    // start. But I got talked into it. Now I see that we *can't* do all the
    // cleaup while holding this lock. So, we are going to go to the trouble
    // to copy out the data that needs to be cleaned up *outside* of
    // the lock. Yuk!

    XPCJSContextStack** stacks = nsnull;
    int count = 0;
    int i;

    if(gLock)
    {
        nsAutoLock lock(gLock);

        for(XPCPerThreadData* cur = gThreads; cur; cur = cur->mNextThread)
            count++;

        stacks = (XPCJSContextStack**) new XPCJSContextStack*[count] ;
        if(stacks)
        {
            i = 0;
            for(XPCPerThreadData* cur = gThreads; cur; cur = cur->mNextThread)
            {
                stacks[i++] = cur->mJSContextStack;
                cur->mJSContextStack = nsnull;
                cur->Cleanup();
            }
        }
    }

    if(stacks)
    {
        for(i = 0; i < count; i++)
            delete stacks[i];
        delete [] stacks;
    }

    if(gTLSIndex != BAD_TLS_INDEX)
        PR_SetThreadPrivate(gTLSIndex, nsnull);
}
// Ensure that we have a Python thread state available to use.
// If this is called for the first time on a thread, it will allocate
// the thread state.  This does NOT change the state of the Python lock.
// Returns TRUE if a new thread state was created, or FALSE if a
// thread state already existed.
PRBool PyXPCOM_ThreadState_Ensure()
{
	ThreadData *pData = (ThreadData *)PR_GetThreadPrivate(tlsIndex);
	if (pData==NULL) { /* First request on this thread */
		/* Check we have an interpreter state */
		if (PyXPCOM_InterpreterState==NULL) {
				Py_FatalError("Can not setup thread state, as have no interpreter state");
		}
		pData = (ThreadData *)nsMemory::Alloc(sizeof(ThreadData));
		if (!pData)
			Py_FatalError("Out of memory allocating thread state.");
		memset(pData, 0, sizeof(*pData));
		if (NS_FAILED( PR_SetThreadPrivate( tlsIndex, pData ) ) ) {
			NS_ABORT_IF_FALSE(0, "Could not create thread data for this thread!");
			Py_FatalError("Could not thread private thread data!");
		}
		pData->ts = PyThreadState_New(PyXPCOM_InterpreterState);
		return PR_TRUE; // Did create a thread state state
	}
	return PR_FALSE; // Thread state was previously created
}
Exemplo n.º 29
0
//-------------------------------------------------------------------------
//
// destructor
//
//-------------------------------------------------------------------------
nsToolkit::~nsToolkit()
{
    NS_PRECONDITION(::IsWindow(mDispatchWnd), "Invalid window handle");

    // Destroy the Dispatch Window
    ::DestroyWindow(mDispatchWnd);
    mDispatchWnd = NULL;

    // Remove the TLS reference to the toolkit...
    PR_SetThreadPrivate(gToolkitTLSIndex, nsnull);

    if (gMouseTrailer) {
      gMouseTrailer->DestroyTimer();
      delete gMouseTrailer;
      gMouseTrailer = nsnull;
    }

#if defined (MOZ_STATIC_COMPONENT_LIBS) || defined(WINCE)
    nsToolkit::Shutdown();
#endif
}
Exemplo n.º 30
0
/*
 * get memory from memory pool
 *  The current code (#else) uses the memory pool stored in the 
 *  per-thread-private data.
 */
void *
mempool_get(int type)
{
	struct mempool_object *object = NULL;
	struct mempool *my_mempool;
	PR_ASSERT(type >= 0 && type < MEMPOOL_END);

	if (!config_get_mempool_switch()) {
		return NULL;	/* memory pool: off */
	}
#ifdef SHARED_MEMPOOL
	if (NULL == mempool[type].mempool_mutex) {
		/* mutex is NULL; this mempool is not enabled */
		return NULL;
	}

	PR_Lock(mempool[type].mempool_mutex);
	object = mempool[type].mempool_head;
	if (NULL != object) {
		mempool[type].mempool_head = object->mempool_next;
		mempool[type].mempool_count--;
		object->mempool_next = NULL;
	}
	PR_Unlock(mempool[type].mempool_mutex);
#else
	my_mempool = (struct mempool *)PR_GetThreadPrivate(mempool_index);
	if (NULL == my_mempool || my_mempool[0].mempool_name != mempool_names[0]) {	/* mempool is not initialized */
		return NULL;
	} 

	object = my_mempool[type].mempool_head;
	if (NULL != object) {
		my_mempool[type].mempool_head = object->mempool_next;
		my_mempool[type].mempool_count--;
		object->mempool_next = NULL;
		PR_SetThreadPrivate (mempool_index, (void *)my_mempool);
	}
#endif
	return object;
}