WebKit2/Shared/ChildProcess.cpp

/*
 * Copyright (C) 2010 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
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 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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 */

#include "ChildProcess.h"

namespace WebKit {

ChildProcess::ChildProcess()
{
}

ChildProcess::~ChildProcess()
{
}

NO_RETURN static void watchdogCallback()
{
    // We use _exit here since the watchdog callback is called from another thread and we don't want 
    // global destructors or atexit handlers to be called from this thread while the main thread is busy
    // doing its thing.
    _exit(EXIT_FAILURE);
}

void ChildProcess::didCloseOnConnectionWorkQueue(WorkQueue* workQueue, CoreIPC::Connection*)
{
    // If the connection has been closed and we haven't responded in the main thread for 10 seconds
    // the process will exit forcibly.
    static const double watchdogDelay = 10.0;
    
    workQueue->scheduleWorkAfterDelay(WorkItem::create(watchdogCallback), watchdogDelay);
}
    
} // namespace WebKit