1 files changed, 151 insertions, 0 deletions
diff --git a/Source/WebKit2/UIProcess/Launcher/gtk/ProcessLauncherGtk.cpp b/Source/WebKit2/UIProcess/Launcher/gtk/ProcessLauncherGtk.cpp
new file mode 100644
index 000000000..d7a50829d
--- /dev/null
+++ b/Source/WebKit2/UIProcess/Launcher/gtk/ProcessLauncherGtk.cpp
@@ -0,0 +1,151 @@
+/*
+ * 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 "RunLoop.h"
+#include <WebCore/FileSystem.h>
+#include <WebCore/ResourceHandle.h>
+#include <errno.h>
+#if OS(LINUX)
+#include <sys/prctl.h>
+#endif
+#include <wtf/text/CString.h>
+#include <wtf/text/WTFString.h>
+#include <wtf/gobject/GOwnPtr.h>
+#include <wtf/gobject/GlibUtilities.h>
+
+#ifdef SOCK_SEQPACKET
+#define SOCKET_TYPE SOCK_SEQPACKET
+#else
+#define SOCKET_TYPE SOCK_STREAM
+#endif
+
+using namespace WebCore;
+
+namespace WebKit {
+
+const char* gWebKitWebProcessName = "WebKitWebProcess";
+const char* gWebKitPluginProcessName = "WebKitPluginProcess";
+
+static void childSetupFunction(gpointer userData)
+{
+    int socket = GPOINTER_TO_INT(userData);
+    close(socket);
+
+#if OS(LINUX)
+    // Kill child process when parent dies.
+    prctl(PR_SET_PDEATHSIG, SIGKILL);
+#endif
+}
+
+static void childFinishedFunction(GPid, gint status, gpointer userData)
+{
+    if (WIFEXITED(status) && !WEXITSTATUS(status))
+        return;
+
+    close(GPOINTER_TO_INT(userData));
+}
+
+static CString findWebKitProcess(const char* processName)
+{
+    const char* execDirectory = g_getenv("WEBKIT_EXEC_PATH");
+    if (execDirectory) {
+        String processPath = pathByAppendingComponent(filenameToString(execDirectory), processName);
+        if (fileExists(processPath))
+            return fileSystemRepresentation(processPath);
+    }
+
+    static bool gotExecutablePath = false;
+    static String executablePath;
+    if (!gotExecutablePath) {
+        gotExecutablePath = true;
+
+        CString executableFile = getCurrentExecutablePath();
+        if (!executableFile.isNull())
+            executablePath = directoryName(filenameToString(executableFile.data()));
+    }
+
+    if (!executablePath.isNull()) {
+        String processPath = pathByAppendingComponent(executablePath, processName);
+        if (fileExists(processPath))
+            return fileSystemRepresentation(processPath);
+    }
+
+    return fileSystemRepresentation(pathByAppendingComponent(filenameToString(LIBEXECDIR), processName));
+}
+
+void ProcessLauncher::launchProcess()
+{
+    GPid pid = 0;
+
+    int sockets[2];
+    if (socketpair(AF_UNIX, SOCKET_TYPE, 0, sockets) < 0) {
+        g_printerr("Creation of socket failed: %s.\n", g_strerror(errno));
+        ASSERT_NOT_REACHED();
+        return;
+    }
+
+    CString binaryPath = findWebKitProcess(m_launchOptions.processType == ProcessLauncher::WebProcess ? gWebKitWebProcessName : gWebKitPluginProcessName);
+    GOwnPtr<gchar> socket(g_strdup_printf("%d", sockets[0]));
+    char* argv[3];
+    argv[0] = const_cast<char*>(binaryPath.data());
+    argv[1] = socket.get();
+    argv[2] = 0;
+
+    GOwnPtr<GError> error;
+    int spawnFlags = G_SPAWN_LEAVE_DESCRIPTORS_OPEN | G_SPAWN_DO_NOT_REAP_CHILD;
+    if (!g_spawn_async(0, argv, 0, static_cast<GSpawnFlags>(spawnFlags), childSetupFunction, GINT_TO_POINTER(sockets[1]), &pid, &error.outPtr())) {
+        g_printerr("Unable to fork a new WebProcess: %s.\n", error->message);
+        ASSERT_NOT_REACHED();
+    }
+
+    close(sockets[0]);
+    m_processIdentifier = pid;
+
+    // Monitor the child process, it calls waitpid to prevent the child process from becomming a zombie,
+    // and it allows us to close the socket when the child process crashes.
+    g_child_watch_add(m_processIdentifier, childFinishedFunction, GINT_TO_POINTER(sockets[1]));
+
+    // We've finished launching the process, message back to the main run loop.
+    RunLoop::main()->dispatch(bind(&ProcessLauncher::didFinishLaunchingProcess, this, m_processIdentifier, sockets[1]));
+}
+
+void ProcessLauncher::terminateProcess()
+{   
+    if (!m_processIdentifier)
+        return;
+
+    kill(m_processIdentifier, SIGKILL);
+}
+
+void ProcessLauncher::platformInvalidate()
+{
+}
+
+} // namespace WebKit