old1

chrome/worker/worker_thread.cc

+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <windows.h>
+
+#include "chrome/worker/worker_thread.h"
+
+#include "chrome/common/ipc_logging.h"
+#include "chrome/common/worker_messages.h"
+#include "chrome/worker/worker_process.h"
+#include "chrome/worker/webworker_context_stub.h"
+
+WorkerThread::WorkerThread(WorkerProcess* process,
+                           const std::wstring& channel_name)
+    : worker_process_(process),
+      channel_name_(channel_name),
+      owner_loop_(MessageLoop::current()),
+      Thread("Chrome_WorkerThread") {
+  DCHECK(worker_process_);
+  DCHECK(owner_loop_);
+
+  Start();
+}
+
+WorkerThread::~WorkerThread() {
+  Stop();
+}
+
+void WorkerThread::OnChannelError() {
+  owner_loop_->PostTask(FROM_HERE, new MessageLoop::QuitTask());
+}
+
+bool WorkerThread::Send(IPC::Message* msg) {
+  return channel_.get() ? channel_->Send(msg) : false;
+}
+
+void WorkerThread::OnMessageReceived(const IPC::Message& msg) {
+  if (msg.routing_id() == MSG_ROUTING_CONTROL) {
+    IPC_BEGIN_MESSAGE_MAP(WorkerThread, msg)
+      IPC_MESSAGE_HANDLER(WorkerProcessMsg_CreateWorker, OnCreateWorker)
+    IPC_END_MESSAGE_MAP()
+  } else {
+    bool routed = router_.RouteMessage(msg);
+    if (!routed && msg.is_sync()) {
+      // The listener has gone away, so we must respond or else the caller will
+      // hang waiting for a reply.
+      IPC::Message* reply = IPC::SyncMessage::GenerateReply(&msg);
+      reply->set_reply_error();
+      Send(reply);
+    }
+  }
+}
+
+void WorkerThread::Init() {
+  channel_.reset(new IPC::SyncChannel(channel_name_,
+      IPC::Channel::MODE_CLIENT, this, NULL, owner_loop_, true,
+      WorkerProcess::GetShutDownEvent()));
+
+#ifdef IPC_MESSAGE_LOG_ENABLED
+  IPC::Logging::current()->SetIPCSender(this);
+#endif
+}
+
+void WorkerThread::CleanUp() {
+#ifdef IPC_MESSAGE_LOG_ENABLED
+  IPC::Logging::current()->SetIPCSender(NULL);
+#endif
+
+  // Need to destruct the SyncChannel to the browser before we go away because
+  // it caches a pointer to this thread.
+  channel_.reset();
+}
+
+void WorkerThread::OnCreateWorker(const GURL& url, int route_id) {
+  WebWorkerContextStub* stub = new WebWorkerContextStub(url, route_id);
+  router_.AddRoute(route_id, stub);
+}
+
+void WorkerThread::OnWorkerDestruction(WebWorkerContextStub* worker) {
+  router_.RemoveRoute(worker->route_id());
+}