1 /*

     2  * Copyright (C) 2010 Apple Inc. All rights reserved.

     3  *

     4  * Redistribution and use in source and binary forms, with or without

     5  * modification, are permitted provided that the following conditions

     6  * are met:

     7  * 1. Redistributions of source code must retain the above copyright

     8  *    notice, this list of conditions and the following disclaimer.

     9  * 2. Redistributions in binary form must reproduce the above copyright

    10  *    notice, this list of conditions and the following disclaimer in the

    11  *    documentation and/or other materials provided with the distribution.

    12  *

    13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''

    14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

    15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

    16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS

    17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

    18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

    19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

    20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

    21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

    22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF

    23  * THE POSSIBILITY OF SUCH DAMAGE.

    24  */

    25 

    26 #include "ProcessLauncher.h"

    27 

    28 #include "Connection.h"

    29 #include "RunLoop.h"

    30 #include "WebProcess.h"

    31 #include <WebCore/PlatformString.h>

    32 #include <runtime/InitializeThreading.h>

    33 #include <wtf/Threading.h>

    34 

    35 using namespace WebCore;

    36 

    37 namespace WebKit {

    38 

    39 void ProcessLauncher::launchProcess()

    40 {

    41     // First, create the server and client identifiers.

    42     HANDLE serverIdentifier, clientIdentifier;

    43     if (!CoreIPC::Connection::createServerAndClientIdentifiers(serverIdentifier, clientIdentifier)) {

    44         // FIXME: What should we do here?

    45         ASSERT_NOT_REACHED();

    46     }

    47 

    48     // Ensure that the child process inherits the client identifier.

    49     ::SetHandleInformation(clientIdentifier, HANDLE_FLAG_INHERIT, HANDLE_FLAG_INHERIT);

    50         

    51     Vector<UChar> commandLineVector;

    52 

    53     // FIXME: We would like to pass a full path to the .exe here.

    54 #ifndef DEBUG_ALL

    55     String commandLine(L"WebKit2WebProcess.exe");

    56 #else

    57     String commandLine(L"WebKit2WebProcess_debug.exe");

    58 #endif

    59 

    60     append(commandLineVector, commandLine);

    61     append(commandLineVector, " -mode webprocess");

    62     append(commandLineVector, " -clientIdentifier ");

    63     append(commandLineVector, String::number(reinterpret_cast<uintptr_t>(clientIdentifier)));

    64     commandLineVector.append('\0');

    65 

    66     STARTUPINFO startupInfo = { 0 };

    67     startupInfo.cb = sizeof(startupInfo);

    68     PROCESS_INFORMATION processInformation = { 0 };

    69     BOOL result = ::CreateProcessW(0, commandLineVector.data(), 0, 0, true, 0, 0, 0, &startupInfo, &processInformation);

    70 

    71     // We can now close the client identifier handle.

    72     ::CloseHandle(clientIdentifier);

    73 

    74     if (!result) {

    75         // FIXME: What should we do here?

    76         DWORD error = ::GetLastError();

    77         ASSERT_NOT_REACHED();

    78     }

    79 

    80     // Don't leak the thread handle.

    81     ::CloseHandle(processInformation.hThread);

    82 

    83     // We've finished launching the process, message back to the run loop.

    84     RunLoop::main()->scheduleWork(WorkItem::create(this, &ProcessLauncher::didFinishLaunchingProcess, processInformation.hProcess, serverIdentifier));

    85 }

    86 

    87 void ProcessLauncher::terminateProcess()

    88 {

    89     if (!m_processIdentifier)

    90         return;

    91 

    92     ::TerminateProcess(m_processIdentifier, 0);

    93 }

    94 

    95 static void* webThreadBody(void* context)

    96 {

    97     HANDLE clientIdentifier = reinterpret_cast<HANDLE>(context);

    98 

    99     // Initialization

   100     JSC::initializeThreading();

   101     WTF::initializeMainThread();

   102 

   103     WebProcess::shared().initialize(clientIdentifier, RunLoop::current());

   104     RunLoop::run();

   105 

   106     return 0;

   107 }

   108 

   109 CoreIPC::Connection::Identifier ProcessLauncher::createWebThread()

   110 {

   111     // First, create the server and client identifiers.

   112     HANDLE serverIdentifier, clientIdentifier;

   113     if (!CoreIPC::Connection::createServerAndClientIdentifiers(serverIdentifier, clientIdentifier)) {

   114         // FIXME: What should we do here?

   115         ASSERT_NOT_REACHED();

   116     }

   117 

   118     if (!createThread(webThreadBody, reinterpret_cast<void*>(clientIdentifier), "WebKit2: WebThread")) {

   119         ::CloseHandle(serverIdentifier);

   120         ::CloseHandle(clientIdentifier);

   121         return 0;

   122     }

   123 

   124     return serverIdentifier;

   125 }

   126 

   127 } // namespace WebKit