source: trunk/src/gui/embedded/qwslock.cpp@ 1108

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#include "qwslock_p.h"

#ifndef QT_NO_QWS_MULTIPROCESS

#include "qwssignalhandler_p.h"

#include <qglobal.h>
#include <qdebug.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/sem.h>
#include <sys/time.h>
#include <time.h>
#ifdef Q_OS_LINUX
#include <linux/version.h>
#endif
#include <unistd.h>

QT_BEGIN_NAMESPACE

#ifdef QT_NO_SEMAPHORE
#error QWSLock currently requires semaphores
#endif

#ifndef Q_OS_BSD4
union semun {
    int val;
    struct semid_ds *buf;
    unsigned short *array;
    struct seminfo  *__buf;
};
#endif

QWSLock::QWSLock()
{
    semId = semget(IPC_PRIVATE, 3, IPC_CREAT | 0666);

    if (semId == -1) {
        perror("QWSLock::QWSLock");
        qFatal("Unable to create semaphore");
    }
    QWSSignalHandler::instance()->addSemaphore(semId);