QTest::FatalSignalHandler Class Reference

Public Functions
	FatalSignalHandler ()
	~FatalSignalHandler ()

Static Private Functions
static void	signal (int)

Properties
sigset_t	handledSignals

Detailed Description

Definition at line 1788 of file qtestcase.cpp.

Constructors and Destructors

FatalSignalHandler()

QTest::FatalSignalHandler::FatalSignalHandler

(

)

Definition at line 1812 of file qtestcase.cpp.

{
    sigemptyset(&handledSignals);

    const int fatalSignals[] = {
         SIGHUP, SIGINT, SIGQUIT, SIGILL, SIGFPE, SIGSEGV, SIGPIPE, SIGTERM, 0 };

    struct sigaction act;
    memset(&act, 0, sizeof(act));
    act.sa_handler = FatalSignalHandler::signal;

    // Remove the handler after it is invoked.
#if !defined(Q_OS_INTEGRITY)
    act.sa_flags = SA_RESETHAND;
#endif
    // Block all fatal signals in our signal handler so we don't try to close
    // the testlog twice.
    sigemptyset(&act.sa_mask);
    for (int i = 0; fatalSignals[i]; ++i)
        sigaddset(&act.sa_mask, fatalSignals[i]);

    struct sigaction oldact;

    for (int i = 0; fatalSignals[i]; ++i) {
        sigaction(fatalSignals[i], &act, &oldact);
#ifndef Q_WS_QWS
        // Don't overwrite any non-default handlers
        // however, we need to replace the default QWS handlers
        if (
#ifdef SA_SIGINFO
            oldact.sa_flags & SA_SIGINFO ||
#endif
            oldact.sa_handler != SIG_DFL) {
            sigaction(fatalSignals[i], &oldact, 0);
        } else
#endif
        {
            sigaddset(&handledSignals, fatalSignals[i]);
        }
    }
}

~FatalSignalHandler()

QTest::FatalSignalHandler::~FatalSignalHandler

(

)

Definition at line 1855 of file qtestcase.cpp.

{
    // Unregister any of our remaining signal handlers
    struct sigaction act;
    memset(&act, 0, sizeof(act));
    act.sa_handler = SIG_DFL;

    struct sigaction oldact;

    for (int i = 1; i < 32; ++i) {
        if (!sigismember(&handledSignals, i))
            continue;
        sigaction(i, &act, &oldact);

        // If someone overwrote it in the mean time, put it back
        if (oldact.sa_handler != FatalSignalHandler::signal)
            sigaction(i, &oldact, 0);
    }
}

Functions

signal()

void QTest::FatalSignalHandler::signal ( int  signum )

staticprivate

Definition at line 1799 of file qtestcase.cpp.

Referenced by FatalSignalHandler(), and ~FatalSignalHandler().

{
    qFatal("Received signal %d", signum);
#if defined(Q_OS_INTEGRITY)
    {
        struct sigaction act;
        memset(&act, 0, sizeof(struct sigaction));
        act.sa_handler = SIG_DFL;
        sigaction(signum, &act, NULL);
    }
#endif
}

Properties

handledSignals

sigset_t QTest::FatalSignalHandler::handledSignals

private

Definition at line 1796 of file qtestcase.cpp.

---

The documentation for this class was generated from the following file:

• /src/testlib/qtestcase.cpp