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Unified Diff: Source/modules/websockets/WorkerThreadableWebSocketChannel.cpp

Issue 701753002: [WebSocket] Remove "Threadable" from class names. (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master
Patch Set: Created 6 years, 1 month ago
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Index: Source/modules/websockets/WorkerThreadableWebSocketChannel.cpp
diff --git a/Source/modules/websockets/WorkerThreadableWebSocketChannel.cpp b/Source/modules/websockets/WorkerThreadableWebSocketChannel.cpp
deleted file mode 100644
index bff654b5aa9fb9c9a4c39422db1ef44cc8059a22..0000000000000000000000000000000000000000
--- a/Source/modules/websockets/WorkerThreadableWebSocketChannel.cpp
+++ /dev/null
@@ -1,482 +0,0 @@
-/*
- * Copyright (C) 2011, 2012 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include "config.h"
-
-#include "modules/websockets/WorkerThreadableWebSocketChannel.h"
-
-#include "bindings/core/v8/ScriptCallStackFactory.h"
-#include "core/dom/CrossThreadTask.h"
-#include "core/dom/Document.h"
-#include "core/dom/ExecutionContext.h"
-#include "core/dom/ExecutionContextTask.h"
-#include "core/fileapi/Blob.h"
-#include "core/inspector/ScriptCallFrame.h"
-#include "core/inspector/ScriptCallStack.h"
-#include "core/workers/WorkerGlobalScope.h"
-#include "core/workers/WorkerLoaderProxy.h"
-#include "core/workers/WorkerThread.h"
-#include "modules/websockets/DocumentWebSocketChannel.h"
-#include "public/platform/Platform.h"
-#include "public/platform/WebWaitableEvent.h"
-#include "wtf/ArrayBuffer.h"
-#include "wtf/Assertions.h"
-#include "wtf/Functional.h"
-#include "wtf/MainThread.h"
-#include "wtf/text/WTFString.h"
-
-namespace blink {
-
-typedef WorkerThreadableWebSocketChannel::Bridge Bridge;
-typedef WorkerThreadableWebSocketChannel::Peer Peer;
-
-// Created and destroyed on the worker thread. All setters of this class are
-// called on the main thread, while all getters are called on the worker
-// thread. signalWorkerThread() must be called before any getters are called.
-class ThreadableWebSocketChannelSyncHelper : public GarbageCollectedFinalized<ThreadableWebSocketChannelSyncHelper> {
-public:
- static ThreadableWebSocketChannelSyncHelper* create(PassOwnPtr<WebWaitableEvent> event)
- {
- return new ThreadableWebSocketChannelSyncHelper(event);
- }
-
- ~ThreadableWebSocketChannelSyncHelper()
- {
- }
-
- // All setters are called on the main thread.
- void setConnectRequestResult(bool connectRequestResult)
- {
- m_connectRequestResult = connectRequestResult;
- }
-
- // All getter are called on the worker thread.
- bool connectRequestResult() const
- {
- return m_connectRequestResult;
- }
-
- // This should be called after all setters are called and before any
- // getters are called.
- void signalWorkerThread()
- {
- m_event->signal();
- }
- void wait()
- {
- m_event->wait();
- }
-
- void trace(Visitor* visitor) { }
-
-private:
- explicit ThreadableWebSocketChannelSyncHelper(PassOwnPtr<WebWaitableEvent> event)
- : m_event(event)
- , m_connectRequestResult(false)
- {
- }
-
- OwnPtr<WebWaitableEvent> m_event;
- bool m_connectRequestResult;
-};
-
-WorkerThreadableWebSocketChannel::WorkerThreadableWebSocketChannel(WorkerGlobalScope& workerGlobalScope, WebSocketChannelClient* client, const String& sourceURL, unsigned lineNumber)
- : m_bridge(new Bridge(client, workerGlobalScope))
- , m_sourceURLAtConnection(sourceURL)
- , m_lineNumberAtConnection(lineNumber)
-{
- m_bridge->initialize(sourceURL, lineNumber);
-}
-
-WorkerThreadableWebSocketChannel::~WorkerThreadableWebSocketChannel()
-{
- ASSERT(!m_bridge);
-}
-
-bool WorkerThreadableWebSocketChannel::connect(const KURL& url, const String& protocol)
-{
- ASSERT(m_bridge);
- return m_bridge->connect(url, protocol);
-}
-
-void WorkerThreadableWebSocketChannel::send(const String& message)
-{
- ASSERT(m_bridge);
- m_bridge->send(message);
-}
-
-void WorkerThreadableWebSocketChannel::send(const ArrayBuffer& binaryData, unsigned byteOffset, unsigned byteLength)
-{
- ASSERT(m_bridge);
- m_bridge->send(binaryData, byteOffset, byteLength);
-}
-
-void WorkerThreadableWebSocketChannel::send(PassRefPtr<BlobDataHandle> blobData)
-{
- ASSERT(m_bridge);
- m_bridge->send(blobData);
-}
-
-void WorkerThreadableWebSocketChannel::close(int code, const String& reason)
-{
- ASSERT(m_bridge);
- m_bridge->close(code, reason);
-}
-
-void WorkerThreadableWebSocketChannel::fail(const String& reason, MessageLevel level, const String& sourceURL, unsigned lineNumber)
-{
- if (!m_bridge)
- return;
-
- RefPtrWillBeRawPtr<ScriptCallStack> callStack = createScriptCallStack(1, true);
- if (callStack && callStack->size()) {
- // In order to emulate the ConsoleMessage behavior,
- // we should ignore the specified url and line number if
- // we can get the JavaScript context.
- m_bridge->fail(reason, level, callStack->at(0).sourceURL(), callStack->at(0).lineNumber());
- } else if (sourceURL.isEmpty() && !lineNumber) {
- // No information is specified by the caller - use the url
- // and the line number at the connection.
- m_bridge->fail(reason, level, m_sourceURLAtConnection, m_lineNumberAtConnection);
- } else {
- // Use the specified information.
- m_bridge->fail(reason, level, sourceURL, lineNumber);
- }
-}
-
-void WorkerThreadableWebSocketChannel::disconnect()
-{
- m_bridge->disconnect();
- m_bridge.clear();
-}
-
-void WorkerThreadableWebSocketChannel::trace(Visitor* visitor)
-{
- visitor->trace(m_bridge);
- WebSocketChannel::trace(visitor);
-}
-
-Peer::Peer(Bridge* bridge, WorkerLoaderProxy& loaderProxy, ThreadableWebSocketChannelSyncHelper* syncHelper)
- : m_bridge(bridge)
- , m_loaderProxy(loaderProxy)
- , m_mainWebSocketChannel(nullptr)
- , m_syncHelper(syncHelper)
-{
- ASSERT(!isMainThread());
-}
-
-Peer::~Peer()
-{
- ASSERT(!isMainThread());
-}
-
-void Peer::initializeInternal(ExecutionContext* context, const String& sourceURL, unsigned lineNumber)
-{
- ASSERT(isMainThread());
- Document* document = toDocument(context);
- m_mainWebSocketChannel = DocumentWebSocketChannel::create(document, this, sourceURL, lineNumber);
- m_syncHelper->signalWorkerThread();
-}
-
-void Peer::connect(const KURL& url, const String& protocol)
-{
- ASSERT(isMainThread());
- ASSERT(m_syncHelper);
- if (!m_mainWebSocketChannel) {
- m_syncHelper->setConnectRequestResult(false);
- } else {
- bool connectRequestResult = m_mainWebSocketChannel->connect(url, protocol);
- m_syncHelper->setConnectRequestResult(connectRequestResult);
- }
- m_syncHelper->signalWorkerThread();
-}
-
-void Peer::send(const String& message)
-{
- ASSERT(isMainThread());
- if (m_mainWebSocketChannel)
- m_mainWebSocketChannel->send(message);
-}
-
-void Peer::sendArrayBuffer(PassOwnPtr<Vector<char> > data)
-{
- ASSERT(isMainThread());
- if (m_mainWebSocketChannel)
- m_mainWebSocketChannel->send(data);
-}
-
-void Peer::sendBlob(PassRefPtr<BlobDataHandle> blobData)
-{
- ASSERT(isMainThread());
- if (m_mainWebSocketChannel)
- m_mainWebSocketChannel->send(blobData);
-}
-
-void Peer::close(int code, const String& reason)
-{
- ASSERT(isMainThread());
- ASSERT(m_syncHelper);
- if (!m_mainWebSocketChannel)
- return;
- m_mainWebSocketChannel->close(code, reason);
-}
-
-void Peer::fail(const String& reason, MessageLevel level, const String& sourceURL, unsigned lineNumber)
-{
- ASSERT(isMainThread());
- ASSERT(m_syncHelper);
- if (!m_mainWebSocketChannel)
- return;
- m_mainWebSocketChannel->fail(reason, level, sourceURL, lineNumber);
-}
-
-void Peer::disconnect()
-{
- ASSERT(isMainThread());
- ASSERT(m_syncHelper);
- if (m_mainWebSocketChannel) {
- m_mainWebSocketChannel->disconnect();
- m_mainWebSocketChannel = nullptr;
- }
- m_syncHelper->signalWorkerThread();
-}
-
-static void workerGlobalScopeDidConnect(ExecutionContext* context, Bridge* bridge, const String& subprotocol, const String& extensions)
-{
- ASSERT_UNUSED(context, context->isWorkerGlobalScope());
- if (bridge->client())
- bridge->client()->didConnect(subprotocol, extensions);
-}
-
-void Peer::didConnect(const String& subprotocol, const String& extensions)
-{
- ASSERT(isMainThread());
- m_loaderProxy.postTaskToWorkerGlobalScope(createCrossThreadTask(&workerGlobalScopeDidConnect, m_bridge, subprotocol, extensions));
-}
-
-static void workerGlobalScopeDidReceiveTextMessage(ExecutionContext* context, Bridge* bridge, const String& payload)
-{
- ASSERT_UNUSED(context, context->isWorkerGlobalScope());
- if (bridge->client())
- bridge->client()->didReceiveTextMessage(payload);
-}
-
-void Peer::didReceiveTextMessage(const String& payload)
-{
- ASSERT(isMainThread());
- m_loaderProxy.postTaskToWorkerGlobalScope(createCrossThreadTask(&workerGlobalScopeDidReceiveTextMessage, m_bridge, payload));
-}
-
-static void workerGlobalScopeDidReceiveBinaryMessage(ExecutionContext* context, Bridge* bridge, PassOwnPtr<Vector<char> > payload)
-{
- ASSERT_UNUSED(context, context->isWorkerGlobalScope());
- if (bridge->client())
- bridge->client()->didReceiveBinaryMessage(payload);
-}
-
-void Peer::didReceiveBinaryMessage(PassOwnPtr<Vector<char> > payload)
-{
- ASSERT(isMainThread());
- m_loaderProxy.postTaskToWorkerGlobalScope(createCrossThreadTask(&workerGlobalScopeDidReceiveBinaryMessage, m_bridge, payload));
-}
-
-static void workerGlobalScopeDidConsumeBufferedAmount(ExecutionContext* context, Bridge* bridge, unsigned long consumed)
-{
- ASSERT_UNUSED(context, context->isWorkerGlobalScope());
- if (bridge->client())
- bridge->client()->didConsumeBufferedAmount(consumed);
-}
-
-void Peer::didConsumeBufferedAmount(unsigned long consumed)
-{
- ASSERT(isMainThread());
- m_loaderProxy.postTaskToWorkerGlobalScope(createCrossThreadTask(&workerGlobalScopeDidConsumeBufferedAmount, m_bridge, consumed));
-}
-
-static void workerGlobalScopeDidStartClosingHandshake(ExecutionContext* context, Bridge* bridge)
-{
- ASSERT_UNUSED(context, context->isWorkerGlobalScope());
- if (bridge->client())
- bridge->client()->didStartClosingHandshake();
-}
-
-void Peer::didStartClosingHandshake()
-{
- ASSERT(isMainThread());
- m_loaderProxy.postTaskToWorkerGlobalScope(createCrossThreadTask(&workerGlobalScopeDidStartClosingHandshake, m_bridge));
-}
-
-static void workerGlobalScopeDidClose(ExecutionContext* context, Bridge* bridge, WebSocketChannelClient::ClosingHandshakeCompletionStatus closingHandshakeCompletion, unsigned short code, const String& reason)
-{
- ASSERT_UNUSED(context, context->isWorkerGlobalScope());
- if (bridge->client())
- bridge->client()->didClose(closingHandshakeCompletion, code, reason);
-}
-
-void Peer::didClose(ClosingHandshakeCompletionStatus closingHandshakeCompletion, unsigned short code, const String& reason)
-{
- ASSERT(isMainThread());
- if (m_mainWebSocketChannel) {
- m_mainWebSocketChannel->disconnect();
- m_mainWebSocketChannel = nullptr;
- }
- m_loaderProxy.postTaskToWorkerGlobalScope(createCrossThreadTask(&workerGlobalScopeDidClose, m_bridge, closingHandshakeCompletion, code, reason));
-}
-
-static void workerGlobalScopeDidError(ExecutionContext* context, Bridge* bridge)
-{
- ASSERT_UNUSED(context, context->isWorkerGlobalScope());
- if (bridge->client())
- bridge->client()->didError();
-}
-
-void Peer::didError()
-{
- ASSERT(isMainThread());
- m_loaderProxy.postTaskToWorkerGlobalScope(createCrossThreadTask(&workerGlobalScopeDidError, m_bridge));
-}
-
-void Peer::trace(Visitor* visitor)
-{
- visitor->trace(m_bridge);
- visitor->trace(m_mainWebSocketChannel);
- visitor->trace(m_syncHelper);
- WebSocketChannelClient::trace(visitor);
-}
-
-Bridge::Bridge(WebSocketChannelClient* client, WorkerGlobalScope& workerGlobalScope)
- : m_client(client)
- , m_workerGlobalScope(workerGlobalScope)
- , m_loaderProxy(m_workerGlobalScope->thread()->workerLoaderProxy())
- , m_syncHelper(ThreadableWebSocketChannelSyncHelper::create(adoptPtr(Platform::current()->createWaitableEvent())))
- , m_peer(new Peer(this, m_loaderProxy, m_syncHelper))
-{
-}
-
-Bridge::~Bridge()
-{
- ASSERT(!m_peer);
-}
-
-void Bridge::initialize(const String& sourceURL, unsigned lineNumber)
-{
- if (!waitForMethodCompletion(createCrossThreadTask(&Peer::initialize, AllowCrossThreadAccess(m_peer.get()), sourceURL, lineNumber))) {
- // The worker thread has been signalled to shutdown before method completion.
- disconnect();
- }
-}
-
-bool Bridge::connect(const KURL& url, const String& protocol)
-{
- if (!m_peer)
- return false;
-
- if (!waitForMethodCompletion(createCrossThreadTask(&Peer::connect, m_peer.get(), url, protocol)))
- return false;
-
- return m_syncHelper->connectRequestResult();
-}
-
-void Bridge::send(const String& message)
-{
- ASSERT(m_peer);
- m_loaderProxy.postTaskToLoader(createCrossThreadTask(&Peer::send, m_peer.get(), message));
-}
-
-void Bridge::send(const ArrayBuffer& binaryData, unsigned byteOffset, unsigned byteLength)
-{
- ASSERT(m_peer);
- // ArrayBuffer isn't thread-safe, hence the content of ArrayBuffer is copied into Vector<char>.
- OwnPtr<Vector<char> > data = adoptPtr(new Vector<char>(byteLength));
- if (binaryData.byteLength())
- memcpy(data->data(), static_cast<const char*>(binaryData.data()) + byteOffset, byteLength);
-
- m_loaderProxy.postTaskToLoader(createCrossThreadTask(&Peer::sendArrayBuffer, m_peer.get(), data.release()));
-}
-
-void Bridge::send(PassRefPtr<BlobDataHandle> data)
-{
- ASSERT(m_peer);
- m_loaderProxy.postTaskToLoader(createCrossThreadTask(&Peer::sendBlob, m_peer.get(), data));
-}
-
-void Bridge::close(int code, const String& reason)
-{
- ASSERT(m_peer);
- m_loaderProxy.postTaskToLoader(createCrossThreadTask(&Peer::close, m_peer.get(), code, reason));
-}
-
-void Bridge::fail(const String& reason, MessageLevel level, const String& sourceURL, unsigned lineNumber)
-{
- ASSERT(m_peer);
- m_loaderProxy.postTaskToLoader(createCrossThreadTask(&Peer::fail, m_peer.get(), reason, level, sourceURL, lineNumber));
-}
-
-void Bridge::disconnect()
-{
- if (!m_peer)
- return;
-
- waitForMethodCompletion(createCrossThreadTask(&Peer::disconnect, m_peer.get()));
- // Here |m_peer| is detached from the main thread and we can delete it.
-
- m_client = nullptr;
- m_peer = nullptr;
- m_syncHelper = nullptr;
- // We won't use this any more.
- m_workerGlobalScope.clear();
-}
-
-// Caller of this function should hold a reference to the bridge, because this function may call WebSocket::didClose() in the end,
-// which causes the bridge to get disconnected from the WebSocket and deleted if there is no other reference.
-bool Bridge::waitForMethodCompletion(PassOwnPtr<ExecutionContextTask> task)
-{
- ASSERT(m_workerGlobalScope);
- ASSERT(m_syncHelper);
-
- m_loaderProxy.postTaskToLoader(task);
-
- // We wait for the syncHelper event even if a shutdown event is fired.
- // See https://codereview.chromium.org/267323004/#msg43 for why we need to wait this.
- ThreadState::SafePointScope scope(ThreadState::HeapPointersOnStack);
- m_syncHelper->wait();
- // This is checking whether a shutdown event is fired or not.
- return !m_workerGlobalScope->thread()->terminated();
-}
-
-void Bridge::trace(Visitor* visitor)
-{
- visitor->trace(m_client);
- visitor->trace(m_workerGlobalScope);
- visitor->trace(m_syncHelper);
- visitor->trace(m_peer);
-}
-
-} // namespace blink
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