/
ProcessLauncherGLib.cpp
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/
ProcessLauncherGLib.cpp
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/*
* Copyright (C) 2010 Apple Inc. All rights reserved.
* Portions Copyright (c) 2010 Motorola Mobility, 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:
* 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 MOTOROLA 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 MOTOROLA 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 "ProcessExecutablePath.h"
#include <WebCore/FileSystem.h>
#include <errno.h>
#include <fcntl.h>
#include <glib.h>
#include <wtf/RunLoop.h>
#include <wtf/UniStdExtras.h>
#include <wtf/glib/GLibUtilities.h>
#include <wtf/glib/GUniquePtr.h>
#include <wtf/text/CString.h>
#include <wtf/text/WTFString.h>
#if PLATFORM(WPE)
#include <wpe/renderer-host.h>
#endif
using namespace WebCore;
namespace WebKit {
static void childSetupFunction(gpointer userData)
{
int socket = GPOINTER_TO_INT(userData);
close(socket);
}
void ProcessLauncher::launchProcess()
{
GPid pid = 0;
IPC::Connection::SocketPair socketPair = IPC::Connection::createPlatformConnection(IPC::Connection::ConnectionOptions::SetCloexecOnServer);
String executablePath;
CString realExecutablePath;
#if ENABLE(NETSCAPE_PLUGIN_API)
String pluginPath;
CString realPluginPath;
#endif
switch (m_launchOptions.processType) {
case ProcessLauncher::ProcessType::Web:
executablePath = executablePathOfWebProcess();
break;
#if ENABLE(NETSCAPE_PLUGIN_API)
case ProcessLauncher::ProcessType::Plugin64:
case ProcessLauncher::ProcessType::Plugin32:
executablePath = executablePathOfPluginProcess();
#if ENABLE(PLUGIN_PROCESS_GTK2)
if (m_launchOptions.extraInitializationData.contains("requires-gtk2"))
executablePath.append('2');
#endif
pluginPath = m_launchOptions.extraInitializationData.get("plugin-path");
realPluginPath = fileSystemRepresentation(pluginPath);
break;
#endif
case ProcessLauncher::ProcessType::Network:
executablePath = executablePathOfNetworkProcess();
break;
case ProcessLauncher::ProcessType::Storage:
executablePath = executablePathOfStorageProcess();
break;
default:
ASSERT_NOT_REACHED();
return;
}
realExecutablePath = fileSystemRepresentation(executablePath);
GUniquePtr<gchar> webkitSocket(g_strdup_printf("%d", socketPair.client));
unsigned nargs = 3; // size of the argv array for g_spawn_async()
#if PLATFORM(WPE)
GUniquePtr<gchar> wpeSocket;
if (m_launchOptions.processType == ProcessLauncher::ProcessType::Web) {
wpeSocket = GUniquePtr<gchar>(g_strdup_printf("%d", wpe_renderer_host_create_client()));
nargs++;
}
#endif
#if ENABLE(DEVELOPER_MODE)
Vector<CString> prefixArgs;
if (!m_launchOptions.processCmdPrefix.isNull()) {
Vector<String> splitArgs;
m_launchOptions.processCmdPrefix.split(' ', splitArgs);
for (auto& arg : splitArgs)
prefixArgs.append(arg.utf8());
nargs += prefixArgs.size();
}
#endif
char** argv = g_newa(char*, nargs);
unsigned i = 0;
#if ENABLE(DEVELOPER_MODE)
// If there's a prefix command, put it before the rest of the args.
for (auto& arg : prefixArgs)
argv[i++] = const_cast<char*>(arg.data());
#endif
argv[i++] = const_cast<char*>(realExecutablePath.data());
argv[i++] = webkitSocket.get();
#if PLATFORM(WPE)
if (m_launchOptions.processType == ProcessLauncher::ProcessType::Web)
argv[i++] = wpeSocket.get();
#endif
#if ENABLE(NETSCAPE_PLUGIN_API)
argv[i++] = const_cast<char*>(realPluginPath.data());
#else
argv[i++] = nullptr;
#endif
argv[i++] = nullptr;
GUniqueOutPtr<GError> error;
if (!g_spawn_async(nullptr, argv, nullptr, G_SPAWN_LEAVE_DESCRIPTORS_OPEN, childSetupFunction, GINT_TO_POINTER(socketPair.server), &pid, &error.outPtr()))
g_error("Unable to fork a new child process: %s", error->message);
// Don't expose the parent socket to potential future children.
if (!setCloseOnExec(socketPair.client))
RELEASE_ASSERT_NOT_REACHED();
close(socketPair.client);
m_processIdentifier = pid;
// We've finished launching the process, message back to the main run loop.
RunLoop::main().dispatch([protectedThis = makeRef(*this), this, serverSocket = socketPair.server] {
didFinishLaunchingProcess(m_processIdentifier, serverSocket);
});
}
void ProcessLauncher::terminateProcess()
{
if (m_isLaunching) {
invalidate();
return;
}
if (!m_processIdentifier)
return;
kill(m_processIdentifier, SIGKILL);
m_processIdentifier = 0;
}
void ProcessLauncher::platformInvalidate()
{
}
} // namespace WebKit