void WorkerFileSystemCallbacksBridge::postCreateFileToMainThread(WebFileSystem* fileSystem, const KURL& path, bool exclusive, const String& mode)
{
dispatchTaskToMainThread(
createCallbackTask(&createFileOnMainThread,
AllowCrossThreadAccess(fileSystem), path, exclusive,
this, mode));
}
void WorkerFileSystemCallbacksBridge::postCopyToMainThread(WebFileSystem* fileSystem, const KURL& sourcePath, const KURL& destinationPath, const String& mode)
{
dispatchTaskToMainThread(
createCallbackTask(©OnMainThread,
AllowCrossThreadAccess(fileSystem), sourcePath, destinationPath,
this, mode));
}
void WorkerFileSystemCallbacksBridge::postOpenFileSystemToMainThread(WebCommonWorkerClient* commonClient, WebFileSystem::Type type, long long size, bool create, const String& mode)
{
dispatchTaskToMainThread(
createCallbackTask(&openFileSystemOnMainThread,
AllowCrossThreadAccess(commonClient), type, size, create,
this, mode));
}
void AsyncFileStream::startOnFileThread()
{
// FIXME: It is not correct to check m_client from a secondary thread - stop() could be racing with this check.
if (!m_client)
return;
m_stream->start();
callOnMainThread(didStart, AllowCrossThreadAccess(this));
}
DataConsumerHandleTestUtil::Thread::Thread(const char* name, InitializationPolicy initializationPolicy)
: m_thread(WebThreadSupportingGC::create(name))
, m_initializationPolicy(initializationPolicy)
, m_waitableEvent(adoptPtr(Platform::current()->createWaitableEvent()))
{
m_thread->postTask(BLINK_FROM_HERE, new Task(threadSafeBind(&Thread::initialize, AllowCrossThreadAccess(this))));
m_waitableEvent->wait();
}
void WorkerFileSystemCallbacksBridge::postCreateSnapshotFileToMainThread(WebFileSystem* fileSystem, const KURL& path, const String& mode)
{
ASSERT(fileSystem);
dispatchTaskToMainThread(
createCallbackTask(&createSnapshotFileOnMainThread,
AllowCrossThreadAccess(fileSystem),
path, this, mode));
}
void WorkerFileSystemCallbacksBridge::postDirectoryExistsToMainThread(WebFileSystem* fileSystem, const KURL& path, const String& mode)
{
ASSERT(fileSystem);
dispatchTaskToMainThread(
createCallbackTask(&directoryExistsOnMainThread,
AllowCrossThreadAccess(fileSystem), path,
this, mode));
}
void WorkerFileSystemCallbacksBridge::postRemoveRecursivelyToMainThread(WebFileSystem* fileSystem, const KURL& path, const String& mode)
{
ASSERT(fileSystem);
dispatchTaskToMainThread(
createCallbackTask(&removeRecursivelyOnMainThread,
AllowCrossThreadAccess(fileSystem), path,
this, mode));
}
void WebWorkerClientImpl::confirmMessageFromWorkerObject(bool hasPendingActivity)
{
// unconfirmed_message_count_ can only be updated on the thread where it's
// accessed. Otherwise there are race conditions with v8's garbage
// collection.
m_scriptExecutionContext->postTask(createCallbackTask(&confirmMessageFromWorkerObjectTask,
AllowCrossThreadAccess(this)));
}
void WorkerThreadableLoader::MainThreadBridge::destroy()
{
// Ensure that no more client callbacks are done in the worker context's thread.
clearClientWrapper();
// "delete this" and m_mainThreadLoader::deref() on the worker object's thread.
m_loaderProxy.postTaskToLoader(
createCallbackTask(&MainThreadBridge::mainThreadDestroy, AllowCrossThreadAccess(this)));
}
void WebSharedWorkerImpl::postExceptionToWorkerObject(const String& errorMessage,
int lineNumber,
const String& sourceURL)
{
WebWorkerBase::dispatchTaskToMainThread(
createCallbackTask(&postExceptionTask, AllowCrossThreadAccess(this),
errorMessage, lineNumber,
sourceURL));
}
void WorkerThreadableWebSocketChannel::Bridge::disconnect()
{
clearClientWrapper();
if (m_peer) {
Peer* peer = m_peer;
m_peer = 0;
m_loaderProxy.postTaskToLoader(createCallbackTask(&mainThreadDestroy, AllowCrossThreadAccess(peer)));
}
m_workerContext = 0;
}
void HTMLParserThread::postTask(PassOwnPtr<CrossThreadClosure> closure)
{
ASSERT(isMainThread());
if (!m_thread) {
m_thread = WebThreadSupportingGC::create("HTMLParserThread");
postTask(threadSafeBind(&HTMLParserThread::setupHTMLParserThread, AllowCrossThreadAccess(this)));
}
m_thread->postTask(BLINK_FROM_HERE, closure);
}
void WebWorkerClientImpl::workerObjectDestroyed()
{
if (isMainThread()) {
m_webWorker->workerObjectDestroyed();
m_worker = 0;
}
// Even if this is called on the main thread, there could be a queued task for
// this object, so don't delete it right away.
WebWorkerBase::dispatchTaskToMainThread(createCallbackTask(&workerObjectDestroyedTask,
AllowCrossThreadAccess(this)));
}
void WebWorkerBase::postConsoleMessageToWorkerObject(MessageSource source,
MessageType type,
MessageLevel level,
const String& message,
int lineNumber,
const String& sourceURL)
{
dispatchTaskToMainThread(createCallbackTask(&postConsoleMessageTask, AllowCrossThreadAccess(this),
source, type, level,
message, lineNumber, sourceURL));
}
bool CCThreadProxy::initializeLayerRenderer()
{
TRACE_EVENT("CCThreadProxy::initializeLayerRenderer", this, 0);
// Make a blocking call to initializeLayerRendererOnImplThread. The results of that call
// are pushed into the initializeSucceeded and capabilities local variables.
CCCompletionEvent completion;
bool initializeSucceeded = false;
LayerRendererCapabilities capabilities;
CCProxy::implThread()->postTask(createCCThreadTask(this, &CCThreadProxy::initializeLayerRendererOnImplThread,
AllowCrossThreadAccess(&completion),
AllowCrossThreadAccess(&initializeSucceeded),
AllowCrossThreadAccess(&capabilities)));
completion.wait();
if (initializeSucceeded) {
m_layerRendererInitialized = true;
m_layerRendererCapabilitiesMainThreadCopy = capabilities;
}
return initializeSucceeded;
}
WorkerThreadableLoader::MainThreadBridge::MainThreadBridge(PassRefPtr<ThreadableLoaderClientWrapper> workerClientWrapper, WorkerLoaderProxy& loaderProxy, const String& taskMode,
const ResourceRequest& request, const ThreadableLoaderOptions& options, const String& outgoingReferrer)
: m_workerClientWrapper(workerClientWrapper)
, m_loaderProxy(loaderProxy)
, m_taskMode(taskMode.isolatedCopy())
{
ASSERT(m_workerClientWrapper.get());
m_loaderProxy.postTaskToLoader(
createCallbackTask(&MainThreadBridge::mainThreadCreateLoader,
AllowCrossThreadAccess(this), request, options, outgoingReferrer));
}
void WorkerThreadableWebSocketChannel::Bridge::initialize()
{
ASSERT(!m_peer);
setMethodNotCompleted();
Ref<Bridge> protect(*this);
m_loaderProxy.postTaskToLoader(CrossThreadTask(&Bridge::mainThreadInitialize, AllowCrossThreadAccess(&m_loaderProxy), m_workerClientWrapper, m_taskMode));
waitForMethodCompletion();
// m_peer may be null when the nested runloop exited before a peer has created.
m_peer = m_workerClientWrapper->peer();
if (!m_peer)
m_workerClientWrapper->setFailedWebSocketChannelCreation();
}
void WebWorkerClientImpl::terminateWorkerContext()
{
if (m_askedToTerminate)
return;
m_askedToTerminate = true;
if (!isMainThread()) {
WebWorkerBase::dispatchTaskToMainThread(
createCallbackTask(&terminateWorkerContextTask, AllowCrossThreadAccess(this)));
return;
}
m_webWorker->terminateWorkerContext();
}
void WorkerThreadableLoader::MainThreadBridge::cancel()
{
m_loaderProxy.postTaskToLoader(
createCallbackTask(&MainThreadBridge::mainThreadCancel, AllowCrossThreadAccess(this)));
ThreadableLoaderClientWrapper* clientWrapper = m_workerClientWrapper.get();
if (!clientWrapper->done()) {
// If the client hasn't reached a termination state, then transition it by sending a cancellation error.
// Note: no more client callbacks will be done after this method -- the clearClientWrapper() call ensures that.
ResourceError error(String(), 0, String(), String());
error.setIsCancellation(true);
clientWrapper->didFail(error);
}
clearClientWrapper();
}
WorkerThreadableWebSocketChannel::Bridge::Bridge(PassRefPtr<ThreadableWebSocketChannelClientWrapper> workerClientWrapper, PassRefPtr<WorkerContext> workerContext, const String& taskMode, const KURL& url, const String& protocol)
: m_workerClientWrapper(workerClientWrapper)
, m_workerContext(workerContext)
, m_loaderProxy(m_workerContext->thread()->workerLoaderProxy())
, m_taskMode(taskMode)
, m_peer(0)
{
ASSERT(m_workerClientWrapper.get());
setMethodNotCompleted();
m_loaderProxy.postTaskToLoader(
createCallbackTask(&Bridge::mainThreadCreateWebSocketChannel,
AllowCrossThreadAccess(this), m_workerClientWrapper, m_taskMode, url, protocol));
waitForMethodCompletion();
ASSERT(m_peer);
}
bool CCThreadProxy::initializeLayerRenderer()
{
RefPtr<GraphicsContext3D> context = m_layerTreeHost->createLayerTreeHostContext3D();
if (!context)
return false;
ASSERT(context->hasOneRef());
// Leak the context pointer so we can transfer ownership of it to the other side...
GraphicsContext3D* contextPtr = context.release().leakRef();
ASSERT(contextPtr->hasOneRef());
// Make a blocking call to initializeLayerRendererOnCCThread. The results of that call
// are pushed into the initializeSucceeded and capabilities local variables.
CCCompletionEvent completion;
bool initializeSucceeded;
LayerRendererCapabilities capabilities;
ccThread->postTask(createCCThreadTask(this, &CCThreadProxy::initializeLayerRendererOnCCThread,
AllowCrossThreadAccess(contextPtr), AllowCrossThreadAccess(&completion), AllowCrossThreadAccess(&initializeSucceeded), AllowCrossThreadAccess(&capabilities)));
completion.wait();
if (initializeSucceeded)
m_layerRendererCapabilitiesMainThreadCopy = capabilities;
return initializeSucceeded;
}
bool CCThreadProxy::recreateContext()
{
TRACE_EVENT0("cc", "CCThreadProxy::recreateContext");
ASSERT(isMainThread());
// Try to create the context.
RefPtr<GraphicsContext3D> context = m_layerTreeHost->createContext();
if (!context)
return false;
if (CCLayerTreeHost::needsFilterContext())
if (!SharedGraphicsContext3D::createForImplThread())
return false;
ASSERT(context->hasOneRef());
// Leak the context pointer so we can transfer ownership of it to the other side...
GraphicsContext3D* contextPtr = context.release().leakRef();
ASSERT(contextPtr->hasOneRef());
// Make a blocking call to recreateContextOnImplThread. The results of that
// call are pushed into the recreateSucceeded and capabilities local
// variables.
CCCompletionEvent completion;
bool recreateSucceeded = false;
LayerRendererCapabilities capabilities;
CCProxy::implThread()->postTask(createCCThreadTask(this, &CCThreadProxy::recreateContextOnImplThread,
AllowCrossThreadAccess(&completion),
AllowCrossThreadAccess(contextPtr),
AllowCrossThreadAccess(&recreateSucceeded),
AllowCrossThreadAccess(&capabilities)));
completion.wait();
if (recreateSucceeded)
m_layerRendererCapabilitiesMainThreadCopy = capabilities;
return recreateSucceeded;
}
bool CCThreadProxy::initializeContext()
{
TRACE_EVENT("CCThreadProxy::initializeContext", this, 0);
RefPtr<GraphicsContext3D> context = m_layerTreeHost->createContext();
if (!context)
return false;
ASSERT(context->hasOneRef());
// Leak the context pointer so we can transfer ownership of it to the other side...
GraphicsContext3D* contextPtr = context.release().leakRef();
ASSERT(contextPtr->hasOneRef());
CCProxy::implThread()->postTask(createCCThreadTask(this, &CCThreadProxy::initializeContextOnImplThread,
AllowCrossThreadAccess(contextPtr)));
return true;
}
WorkerThreadableLoader::MainThreadBridge::MainThreadBridge(
PassRefPtr<ThreadableLoaderClientWrapper> workerClientWrapper,
PassOwnPtr<ThreadableLoaderClient> clientBridge,
WorkerLoaderProxy& loaderProxy,
const ResourceRequest& request,
const ThreadableLoaderOptions& options,
const ResourceLoaderOptions& resourceLoaderOptions,
const String& outgoingReferrer)
: m_clientBridge(clientBridge)
, m_workerClientWrapper(workerClientWrapper)
, m_loaderProxy(loaderProxy)
{
ASSERT(m_workerClientWrapper.get());
ASSERT(m_clientBridge.get());
m_loaderProxy.postTaskToLoader(
createCrossThreadTask(&MainThreadBridge::mainThreadCreateLoader, AllowCrossThreadAccess(this), request, options, resourceLoaderOptions, outgoingReferrer));
}
void WebWorkerClientImpl::startWorkerContext(const KURL& scriptURL,
const String& userAgent,
const String& sourceCode)
{
// Worker.terminate() could be called from JS before the context is started.
if (m_askedToTerminate)
return;
if (!isMainThread()) {
WebWorkerBase::dispatchTaskToMainThread(createCallbackTask(
&startWorkerContextTask,
AllowCrossThreadAccess(this),
scriptURL.string(),
userAgent,
sourceCode));
return;
}
m_webWorker->startWorkerContext(scriptURL, userAgent, sourceCode);
}
void WebWorkerImpl::postMessageToWorkerContext(const WebString& message,
const WebMessagePortChannelArray& webChannels)
{
OwnPtr<MessagePortChannelArray> channels;
if (webChannels.size()) {
channels = new MessagePortChannelArray(webChannels.size());
for (size_t i = 0; i < webChannels.size(); ++i) {
RefPtr<PlatformMessagePortChannel> platform_channel =
PlatformMessagePortChannel::create(webChannels[i]);
webChannels[i]->setClient(platform_channel.get());
(*channels)[i] = MessagePortChannel::create(platform_channel);
}
}
workerThread()->runLoop().postTask(
createCallbackTask(&postMessageToWorkerContextTask,
AllowCrossThreadAccess(this), String(message), channels.release()));
}
void CCThreadProxy::beginFrameAndCommit(double frameBeginTime)
{
ASSERT(isMainThread());
if (!m_layerTreeHost)
return;
TRACE_EVENT("CCThreadProxy::requestFrameAndCommit", this, 0);
{
TRACE_EVENT("CCLayerTreeHost::animateAndLayout", this, 0);
m_layerTreeHost->animateAndLayout(frameBeginTime);
}
m_commitPending = false;
// Blocking call to CCThreadProxy::performCommit
CCCompletionEvent completion;
ccThread->postTask(createCCThreadTask(this, &CCThreadProxy::commitOnCCThread, AllowCrossThreadAccess(&completion)));
completion.wait();
}
void WebWorkerClientImpl::postExceptionToWorkerObject(const WebString& errorMessage,
int lineNumber,
const WebString& sourceURL)
{
if (currentThread() != m_workerThreadId) {
m_scriptExecutionContext->postTask(createCallbackTask(&postExceptionToWorkerObjectTask,
AllowCrossThreadAccess(this),
String(errorMessage),
lineNumber,
String(sourceURL)));
return;
}
bool unhandled = m_worker->dispatchEvent(ErrorEvent::create(errorMessage,
sourceURL,
lineNumber));
if (unhandled)
m_scriptExecutionContext->reportException(errorMessage, lineNumber, sourceURL, 0);
}
TEST_F(ImageFrameGeneratorTest, incompleteDecodeBecomesCompleteMultiThreaded)
{
setFrameStatus(ImageFrame::FramePartial);
char buffer[100 * 100 * 4];
m_generator->decodeAndScale(imageInfo(), 0, buffer, 100 * 4);
EXPECT_EQ(1, m_decodeRequestCount);
EXPECT_EQ(0, m_decodersDestroyed);
// LocalFrame can now be decoded completely.
setFrameStatus(ImageFrame::FrameComplete);
addNewData();
OwnPtr<WebThread> thread = adoptPtr(Platform::current()->createThread("DecodeThread"));
thread->postTask(FROM_HERE, new Task(threadSafeBind(&decodeThreadMain, AllowCrossThreadAccess(m_generator.get()))));
thread.clear();
EXPECT_EQ(2, m_decodeRequestCount);
EXPECT_EQ(1, m_decodersDestroyed);
// Decoder created again.
m_generator->decodeAndScale(imageInfo(), 0, buffer, 100 * 4);
EXPECT_EQ(3, m_decodeRequestCount);
}
