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	CMake is a cross-platform, open-source build system generator.

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path: root/Modules/Platform/ULTRIX.cmake

	Commit message (Expand)	Author	Age	Files	Lines
*	ENH: major changes to support addition of languages from cmake modules direct...	Bill Hoffman	2004-09-22	1	-1/+1
*	ENH: more uniform approach to enable language, one step closer to being able ...	Bill Hoffman	2004-08-26	1	-2/+0
*	BUG: fix for bug 383 gcc flags are now always set if the compiler is gnu	Bill Hoffman	2003-11-14	1	-0/+2
*	Complete rework of makefile generators expect trouble	Bill Hoffman	2002-11-08	1	-0/+4

generated by cgit v0.12 at 2025-02-10 17:55:27 (GMT)

/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights.  These rights are described in the Nokia Qt LGPL
** Exception version 1.1, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/

//! [0]
class MyDaemon : public QObject
{
    Q_OBJECT

  public:
    MyDaemon(QObject *parent = 0, const char *name = 0);
    ~MyDaemon();

    // Unix signal handlers.
    static void hupSignalHandler(int unused);
    static void termSignalHandler(int unused);

  public slots:
    // Qt signal handlers.
    void handleSigHup();
    void handleSigTerm();

  private:
    static int sighupFd[2];
    static int sigtermFd[2];

    QSocketNotifier *snHup;
    QSocketNotifier *snTerm;
};
//! [0]


//! [1]
MyDaemon::MyDaemon(QObject *parent, const char *name)
    	 : QObject(parent,name)
{
    if (::socketpair(AF_UNIX, SOCK_STREAM, 0, sighupFd))
       qFatal("Couldn't create HUP socketpair");

    if (::socketpair(AF_UNIX, SOCK_STREAM, 0, sigtermFd))
       qFatal("Couldn't create TERM socketpair");
    snHup = new QSocketNotifier(sighupFd[1], QSocketNotifier::Read, this);
    connect(snHup, SIGNAL(activated(int)), this, SLOT(handleSigHup()));
    snTerm = new QSocketNotifier(sigtermFd[1], QSocketNotifier::Read, this);
    connect(snTerm, SIGNAL(activated(int)), this, SLOT(handleSigTerm()));

    ...
}
//! [1]


//! [2]
static int setup_unix_signal_handlers()
{
    struct sigaction hup, term;

    hup.sa_handler = MyDaemon::hupSignalHandler;
    sigemptyset(&hup.sa_mask);
    hup.sa_flags = 0;
    hup.sa_flags |= SA_RESTART;

    if (sigaction(SIGHUP, &hup, 0) > 0)
       return 1;

    term.sa_handler = MyDaemon::termSignalHandler;
    sigemptyset(&term.sa_mask);
    term.sa_flags |= SA_RESTART;

    if (sigaction(SIGTERM, &term, 0) > 0)
       return 2;

    return 0;
}
//! [2]


//! [3]
void MyDaemon::hupSignalHandler(int)
{
    char a = 1;
    ::write(sighupFd[0], &a, sizeof(a));
}

void MyDaemon::termSignalHandler(int)
{
    char a = 1;
    ::write(sigtermFd[0], &a, sizeof(a));
}
//! [3]


//! [4]
void MyDaemon::handleSigTerm()
{
    snTerm->setEnabled(false);
    char tmp;
    ::read(sigtermFd[1], &tmp, sizeof(tmp));

    // do Qt stuff

    snTerm->setEnabled(true);
}

void MyDaemon::handleSigHup()
{
    snHup->setEnabled(false);
    char tmp;
    ::read(sighupFd[1], &tmp, sizeof(tmp));

    // do Qt stuff

    snHup->setEnabled(true);
}
//! [4]