1/* 2 * Copyright (C) 2010 Apple Inc. All rights reserved. 3 * Portions Copyright (c) 2010 Motorola Mobility, Inc. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY MOTOROLA INC. AND ITS CONTRIBUTORS ``AS IS'' 15 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 16 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MOTOROLA INC. OR ITS CONTRIBUTORS 18 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 19 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 20 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 21 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 22 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 23 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 24 * THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27#include "config.h" 28#include "ProcessLauncher.h" 29 30#include "Connection.h" 31#include "RunLoop.h" 32#include <WebCore/FileSystem.h> 33#include <WebCore/ResourceHandle.h> 34#include <errno.h> 35#if OS(LINUX) 36#include <sys/prctl.h> 37#endif 38#include <wtf/text/CString.h> 39#include <wtf/text/WTFString.h> 40#include <wtf/gobject/GOwnPtr.h> 41 42using namespace WebCore; 43 44namespace WebKit { 45 46const char* gWebKitWebProcessName = "WebKitWebProcess"; 47 48static void childSetupFunction(gpointer userData) 49{ 50 int socket = GPOINTER_TO_INT(userData); 51 close(socket); 52 53#if OS(LINUX) 54 // Kill child process when parent dies. 55 prctl(PR_SET_PDEATHSIG, SIGKILL); 56#endif 57} 58 59void ProcessLauncher::launchProcess() 60{ 61 GPid pid = 0; 62 63 int sockets[2]; 64 if (socketpair(AF_UNIX, SOCK_DGRAM, 0, sockets) < 0) { 65 g_printerr("Creation of socket failed: %s.\n", g_strerror(errno)); 66 ASSERT_NOT_REACHED(); 67 return; 68 } 69 70 GOwnPtr<gchar> binaryPath(g_build_filename(applicationDirectoryPath().data(), gWebKitWebProcessName, NULL)); 71 GOwnPtr<gchar> socket(g_strdup_printf("%d", sockets[0])); 72 char* argv[3]; 73 argv[0] = binaryPath.get(); 74 argv[1] = socket.get(); 75 argv[2] = 0; 76 77 GOwnPtr<GError> error; 78 int spawnFlags = G_SPAWN_LEAVE_DESCRIPTORS_OPEN | G_SPAWN_DO_NOT_REAP_CHILD; 79 if (!g_spawn_async(0, argv, 0, static_cast<GSpawnFlags>(spawnFlags), childSetupFunction, GINT_TO_POINTER(sockets[1]), &pid, &error.outPtr())) { 80 g_printerr("Unable to fork a new WebProcess: %s.\n", error->message); 81 ASSERT_NOT_REACHED(); 82 } 83 84 close(sockets[0]); 85 m_processIdentifier = pid; 86 // We've finished launching the process, message back to the main run loop. 87 RunLoop::main()->scheduleWork(WorkItem::create(this, &ProcessLauncher::didFinishLaunchingProcess, m_processIdentifier, sockets[1])); 88} 89 90void ProcessLauncher::terminateProcess() 91{ 92 if (!m_processIdentifier) 93 return; 94 95 kill(m_processIdentifier, SIGKILL); 96} 97 98void ProcessLauncher::platformInvalidate() 99{ 100} 101 102} // namespace WebKit 103