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/*
* 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 "config.h"
#include "ProcessLauncher.h"
#include "Connection.h"
#include "RunLoop.h"
#include "WebProcess.h"
#include <QApplication>
#include <QDebug>
#include <QFile>
#include <QLocalServer>
#include <QMetaType>
#include <QProcess>
#include <QString>
#include <QtCore/qglobal.h>
#include <WebCore/NotImplemented.h>
#include <errno.h>
#include <fcntl.h>
#include <runtime/InitializeThreading.h>
#include <string>
#include <sys/resource.h>
#include <sys/socket.h>
#include <unistd.h>
#include <wtf/HashSet.h>
#include <wtf/PassRefPtr.h>
#include <wtf/Threading.h>
#include <wtf/text/WTFString.h>
#if defined Q_OS_LINUX
#include <sys/prctl.h>
#include <signal.h>
#endif
using namespace WebCore;
namespace WebKit {
class QtWebProcess : public QProcess
{
Q_OBJECT
public:
QtWebProcess(QObject* parent = 0)
: QProcess(parent)
{
}
protected:
virtual void setupChildProcess();
};
void QtWebProcess::setupChildProcess()
{
#if defined Q_OS_LINUX
#ifndef NDEBUG
if (getenv("QT_WEBKIT_KEEP_ALIVE_WEB_PROCESS"))
return;
#endif
prctl(PR_SET_PDEATHSIG, SIGKILL);
#endif
}
#if OS(SYMBIAN)
// FIXME: Symbian's POSIX layer doesn't have a socketpair(), so
// the following is just to fix the build until a pure Symbian
// IPC implementation lands on trunk
static int socketpair(int, int, int , int[2])
{
return -1;
}
#endif
void ProcessLauncher::launchProcess()
{
QString applicationPath = QLatin1String("%1 %2");
if (QFile::exists(QCoreApplication::applicationDirPath() + QLatin1String("/QtWebProcess"))) {
applicationPath = applicationPath.arg(QCoreApplication::applicationDirPath() + QLatin1String("/QtWebProcess"));
} else {
applicationPath = applicationPath.arg(QLatin1String("QtWebProcess"));
}
int sockets[2];
if (socketpair(AF_UNIX, SOCK_DGRAM, 0, sockets) == -1) {
qDebug() << "Creation of socket failed with errno:" << errno;
ASSERT_NOT_REACHED();
return;
}
// Don't expose the ui socket to the web process
while (fcntl(sockets[1], F_SETFD, FD_CLOEXEC) == -1) {
if (errno != EINTR) {
ASSERT_NOT_REACHED();
while (close(sockets[0]) == -1 && errno == EINTR) { }
while (close(sockets[1]) == -1 && errno == EINTR) { }
return;
}
}
QString program(applicationPath.arg(sockets[0]));
QProcess* webProcess = new QtWebProcess();
webProcess->setProcessChannelMode(QProcess::ForwardedChannels);
webProcess->start(program);
// Don't expose the web socket to possible future web processes
while (fcntl(sockets[0], F_SETFD, FD_CLOEXEC) == -1) {
if (errno != EINTR) {
ASSERT_NOT_REACHED();
delete webProcess;
return;
}
}
if (!webProcess->waitForStarted()) {
qDebug() << "Failed to start" << program;
ASSERT_NOT_REACHED();
delete webProcess;
return;
}
setpriority(PRIO_PROCESS, webProcess->pid(), 10);
RunLoop::main()->scheduleWork(WorkItem::create(this, &WebKit::ProcessLauncher::didFinishLaunchingProcess, webProcess, sockets[1]));
}
void ProcessLauncher::terminateProcess()
{
if (!m_processIdentifier)
return;
QObject::connect(m_processIdentifier, SIGNAL(finished(int)), m_processIdentifier, SLOT(deleteLater()), Qt::QueuedConnection);
m_processIdentifier->terminate();
}
void ProcessLauncher::platformInvalidate()
{
}
} // namespace WebKit
#include "ProcessLauncherQt.moc"
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