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      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 #ifndef WebProcessLauncher_h
     27 #define WebProcessLauncher_h
     28 
     29 #include "Connection.h"
     30 #include "PlatformProcessIdentifier.h"
     31 #include <wtf/RefPtr.h>
     32 #include <wtf/Threading.h>
     33 
     34 #if PLATFORM(QT)
     35 class QLocalSocket;
     36 #endif
     37 
     38 namespace WebKit {
     39 
     40 class ProcessLauncher : public ThreadSafeRefCounted<ProcessLauncher> {
     41 public:
     42     class Client {
     43     public:
     44         virtual ~Client() { }
     45 
     46         virtual void didFinishLaunching(ProcessLauncher*, CoreIPC::Connection::Identifier) = 0;
     47     };
     48 
     49     enum ProcessType {
     50         WebProcess,
     51         PluginProcess
     52     };
     53 
     54     struct LaunchOptions {
     55         ProcessType processType;
     56 #if PLATFORM(MAC)
     57         static const cpu_type_t MatchCurrentArchitecture = 0;
     58         cpu_type_t architecture;
     59         bool executableHeap;
     60 #endif
     61     };
     62 
     63     static PassRefPtr<ProcessLauncher> create(Client* client, const LaunchOptions& launchOptions)
     64     {
     65         return adoptRef(new ProcessLauncher(client, launchOptions));
     66     }
     67 
     68     bool isLaunching() const { return m_isLaunching; }
     69     PlatformProcessIdentifier processIdentifier() const { return m_processIdentifier; }
     70 
     71     void terminateProcess();
     72     void invalidate();
     73 
     74     static bool getProcessTypeFromString(const char*, ProcessType&);
     75 
     76 private:
     77     ProcessLauncher(Client*, const LaunchOptions& launchOptions);
     78 
     79     static const char* processTypeAsString(ProcessType);
     80 
     81     void launchProcess();
     82     void didFinishLaunchingProcess(PlatformProcessIdentifier, CoreIPC::Connection::Identifier);
     83 
     84     void platformInvalidate();
     85 
     86     Client* m_client;
     87 
     88     const LaunchOptions m_launchOptions;
     89     bool m_isLaunching;
     90     PlatformProcessIdentifier m_processIdentifier;
     91 };
     92 
     93 } // namespace WebKit
     94 
     95 #endif // WebProcessLauncher_h
     96