WebKit2/UIProcess/Launcher/qt/ProcessLauncherQt.cpp
changeset 0 4f2f89ce4247
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebKit2/UIProcess/Launcher/qt/ProcessLauncherQt.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,201 @@
+/*
+ * Copyright (C) 2010 Apple Inc. All rights reserved.
+ * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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 "ProcessLauncher.h"
+
+#include "Connection.h"
+#include "RunLoop.h"
+#include "WebProcess.h"
+#include <WebCore/PlatformString.h>
+#include <runtime/InitializeThreading.h>
+#include <string>
+#include <wtf/PassRefPtr.h>
+#include <wtf/Threading.h>
+
+#if USE(MEEGOTOUCH)
+#include <meegotouch/MComponentData>
+#endif
+
+#include <QApplication>
+#include <QDebug>
+#include <QLocalServer>
+#include <QProcess>
+
+#include <QtCore/qglobal.h>
+
+#include <sys/resource.h>
+#include <unistd.h>
+
+#if !defined(QWEBKIT_EXPORT)
+#  if defined(QT_SHARED)
+#    define QWEBKIT_EXPORT Q_DECL_EXPORT
+#  else
+#    define QWEBKIT_EXPORT
+#  endif
+#endif
+
+using namespace WebCore;
+
+namespace WebKit {
+
+class ProcessLauncherHelper : public QObject {
+    Q_OBJECT
+public:
+    void launch(WebKit::ProcessLauncher*);
+    QLocalSocket* takePendingConnection();
+    static ProcessLauncherHelper* instance();
+private:
+    ProcessLauncherHelper();
+    QLocalServer m_server;
+    QList<WorkItem*> m_items;
+
+    Q_SLOT void newConnection();
+};
+
+void ProcessLauncherHelper::launch(WebKit::ProcessLauncher* launcher)
+{
+    QString program("QtWebProcess " + m_server.serverName());
+
+    QProcess* webProcess = new QProcess();
+    webProcess->start(program);
+
+    if (!webProcess->waitForStarted()) {
+        qDebug() << "Failed to start" << program;
+        ASSERT_NOT_REACHED();
+        delete webProcess;
+        return;
+    }
+
+    setpriority(PRIO_PROCESS, webProcess->pid(), 10);
+
+    m_items.append(WorkItem::create(launcher, &WebKit::ProcessLauncher::didFinishLaunchingProcess, webProcess, m_server.serverName()).leakPtr());
+}
+
+QLocalSocket* ProcessLauncherHelper::takePendingConnection()
+{
+    return m_server.nextPendingConnection();
+}
+
+ProcessLauncherHelper::ProcessLauncherHelper()
+{
+    srandom(time(0));
+    if (!m_server.listen("QtWebKit" + QString::number(random()))) {
+        qDebug() << "Failed to create server socket.";
+        ASSERT_NOT_REACHED();
+    }
+    connect(&m_server, SIGNAL(newConnection()), this, SLOT(newConnection()));
+}
+
+ProcessLauncherHelper* ProcessLauncherHelper::instance()
+{
+    static ProcessLauncherHelper* result = new ProcessLauncherHelper();
+    return result;
+}
+
+void ProcessLauncherHelper::newConnection()
+{
+    ASSERT(!m_items.isEmpty());
+
+    m_items[0]->execute();
+    delete m_items[0];
+    m_items.pop_front();
+}
+
+void ProcessLauncher::launchProcess()
+{
+    ProcessLauncherHelper::instance()->launch(this);
+}
+
+void ProcessLauncher::terminateProcess()
+{
+    if (!m_processIdentifier)
+        return;
+
+    QObject::connect(m_processIdentifier, SIGNAL(finished(int)), m_processIdentifier, SLOT(deleteLater()), Qt::QueuedConnection);
+    m_processIdentifier->kill();
+}
+
+QLocalSocket* ProcessLauncher::takePendingConnection()
+{
+    return ProcessLauncherHelper::instance()->takePendingConnection();
+}
+
+static void* webThreadBody(void* /* context */)
+{
+    // Initialization
+    JSC::initializeThreading();
+    WTF::initializeMainThread();
+
+    // FIXME: We do not support threaded mode for now.
+
+    WebProcess::shared().initialize("foo", RunLoop::current());
+    RunLoop::run();
+
+    return 0;
+}
+
+CoreIPC::Connection::Identifier ProcessLauncher::createWebThread()
+{
+    srandom(time(0));
+    int connectionIdentifier = random();
+
+    if (!createThread(webThreadBody, reinterpret_cast<void*>(connectionIdentifier), "WebKit2: WebThread")) {
+        qWarning() << "failed starting thread";
+        return 0;
+    }
+
+    QString serverIdentifier = QString::number(connectionIdentifier);
+    return serverIdentifier;
+}
+
+} // namespace WebKit
+
+QWEBKIT_EXPORT int webProcessMain(int argc, char** argv)
+{
+    QApplication* app = new QApplication(argc, argv);
+
+#if USE(MEEGOTOUCH)
+    new MComponentData(argc, argv);
+#endif
+
+    srandom(time(0));
+
+    JSC::initializeThreading();
+    WTF::initializeMainThread();
+    RunLoop::initializeMainRunLoop();
+
+    // Create the connection.
+    QString identifier(app->arguments().size() > 1 ? app->arguments().at(1) : "");
+    WebKit::WebProcess::shared().initialize(identifier, RunLoop::main());
+
+    RunLoop::run();
+
+    // FIXME: Do more cleanup here.
+
+    return 0;
+}
+
+#include "ProcessLauncherQt.moc"