plasma-workspace/ksplash/ksplashqml/main.cpp

/*
 *   Copyright (C) 2011 Ivan Cukic <ivan.cukic(at)kde.org>
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License version 2,
 *   or (at your option) any later version, as published by the Free
 *   Software Foundation
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details
 *
 *   You should have received a copy of the GNU General Public
 *   License along with this program; if not, write to the
 *   Free Software Foundation, Inc.,
 *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */


#include "splashapp.h"
#include <QQuickWindow>

#include <QTextStream>

#include <iostream>
#include <unistd.h>

void logMessageHandler(QtMsgType type, const char *msg)
{
    QString txt;
    switch (type) {
    case QtDebugMsg:
        txt = QStringLiteral("Debug: %1").arg(msg);
        break;
    case QtInfoMsg:
        txt = QStringLiteral("Info: %1").arg(msg);
        break;
    case QtWarningMsg:
        txt = QStringLiteral("Warning: %1").arg(msg);
    break;
    case QtCriticalMsg:
        txt = QStringLiteral("Critical: %1").arg(msg);
    break;
    case QtFatalMsg:
        txt = QStringLiteral("Fatal: %1").arg(msg);
    break;
    }
    QFile outFile(QStringLiteral("/tmp/ksplash"));
    outFile.open(QIODevice::WriteOnly | QIODevice::Append);
    QTextStream ts(&outFile);
    ts << txt << '\n';
}

int main(int argc, char **argv)
{
    bool nofork = false;
    bool test = false;
    bool printPid = false;

    for (int i = 1; i < argc; i++) {
        if (strcmp("--test", argv[i]) == 0 || strcmp("--help", argv[i]) == 0)
            test = true;
        else if (strcmp("--pid", argv[i]) == 0)
            printPid = true;
        else if (strcmp("--nofork", argv[i]) == 0)
            nofork = true;
    }

    // lets fork and all that...

    if (!test && !nofork) {
        pid_t pid = fork();
        if (pid < -1) {
            return -1;
        }

        if (pid != 0) {
            // this is the parent process, returning pid of the fork
            if (printPid) {
                std::cout << pid << std::endl;
            }

            return 0;
        }
    }

    //enable to send log output to /tmp/ksplash
    //which is useful for debugging
//     qInstallMsgHandler(myMessageHandler);
    QQuickWindow::setDefaultAlphaBuffer(true);
    SplashApp app(argc, argv);

    if (!test && !nofork) {
        // close stdin,stdout,stderr, otherwise startkde will block
        close(0);
        close(1);
        close(2);
    }

    return app.exec();
}