ProcessLauncher.h   [plain text]

/*
 * Copyright (C) 2010, 2012 Apple 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 APPLE 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 APPLE 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.
 */

#pragma once

#include "Connection.h"
#include <wtf/HashMap.h>
#include <wtf/RefPtr.h>
#include <wtf/Threading.h>
#include <wtf/WeakPtr.h>
#include <wtf/text/StringHash.h>
#include <wtf/text/WTFString.h>

namespace WebKit {

class ProcessLauncher : public ThreadSafeRefCounted<ProcessLauncher> {
public:
    class Client {
    public:
        virtual ~Client() { }
        
        virtual void didFinishLaunching(ProcessLauncher*, IPC::Connection::Identifier) = 0;
    };
    
    enum class ProcessType {
        Web,
#if ENABLE(NETSCAPE_PLUGIN_API)
        Plugin32,
        Plugin64,
#endif
        Network,
#if ENABLE(DATABASE_PROCESS)
        Database,
#endif
    };

    struct LaunchOptions {
        ProcessType processType;
        HashMap<String, String> extraInitializationData;

#if ENABLE(DEVELOPER_MODE) && (PLATFORM(GTK) || PLATFORM(WPE))
        String processCmdPrefix;
#endif
    };

    static Ref<ProcessLauncher> create(Client* client, const LaunchOptions& launchOptions)
    {
        return adoptRef(*new ProcessLauncher(client, launchOptions));
    }

    bool isLaunching() const { return m_isLaunching; }
    pid_t processIdentifier() const { return m_processIdentifier; }

    void terminateProcess();
    void invalidate();

private:
    ProcessLauncher(Client*, const LaunchOptions& launchOptions);

    void launchProcess();
    void didFinishLaunchingProcess(pid_t, IPC::Connection::Identifier);

    void platformInvalidate();

    Client* m_client;

#if PLATFORM(COCOA)
    OSObjectPtr<xpc_connection_t> m_xpcConnection;
#endif

    WeakPtrFactory<ProcessLauncher> m_weakPtrFactory;
    const LaunchOptions m_launchOptions;
    bool m_isLaunching;
    pid_t m_processIdentifier;
};

} // namespace WebKit