/*[clinic input]
preserve
[clinic start generated code]*/

#if defined(HAVE_ALARM)

PyDoc_STRVAR(signal_alarm__doc__,
"alarm($module, seconds, /)\n"
"--\n"
"\n"
"Arrange for SIGALRM to arrive after the given number of seconds.");

#define SIGNAL_ALARM_METHODDEF    \
    {"alarm", (PyCFunction)signal_alarm, METH_O, signal_alarm__doc__},

static long
signal_alarm_impl(PyObject *module, int seconds);

static PyObject *
signal_alarm(PyObject *module, PyObject *arg)
{
    PyObject *return_value = NULL;
    int seconds;
    long _return_value;

    if (!PyArg_Parse(arg, "i:alarm", &seconds)) {
        goto exit;
    }
    _return_value = signal_alarm_impl(module, seconds);
    if ((_return_value == -1) && PyErr_Occurred()) {
        goto exit;
    }
    return_value = PyLong_FromLong(_return_value);

exit:
    return return_value;
}

#endif /* defined(HAVE_ALARM) */

#if defined(HAVE_PAUSE)

PyDoc_STRVAR(signal_pause__doc__,
"pause($module, /)\n"
"--\n"
"\n"
"Wait until a signal arrives.");

#define SIGNAL_PAUSE_METHODDEF    \
    {"pause", (PyCFunction)signal_pause, METH_NOARGS, signal_pause__doc__},

static PyObject *
signal_pause_impl(PyObject *module);

static PyObject *
signal_pause(PyObject *module, PyObject *Py_UNUSED(ignored))
{
    return signal_pause_impl(module);
}

#endif /* defined(HAVE_PAUSE) */

PyDoc_STRVAR(signal_signal__doc__,
"signal($module, signalnum, handler, /)\n"
"--\n"
"\n"
"Set the action for the given signal.\n"
"\n"
"The action can be SIG_DFL, SIG_IGN, or a callable Python object.\n"
"The previous action is returned.  See getsignal() for possible return values.\n"
"\n"
"*** IMPORTANT NOTICE ***\n"
"A signal handler function is called with two arguments:\n"
"the first is the signal number, the second is the interrupted stack frame.");

#define SIGNAL_SIGNAL_METHODDEF    \
    {"signal", (PyCFunction)signal_signal, METH_FASTCALL, signal_signal__doc__},

static PyObject *
signal_signal_impl(PyObject *module, int signalnum, PyObject *handler);

static PyObject *
signal_signal(PyObject *module, PyObject **args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    int signalnum;
    PyObject *handler;

    if (!_PyArg_NoStackKeywords("signal", kwnames)) {
        goto exit;
    }

    if (!_PyArg_ParseStack(args, nargs, "iO:signal",
        &signalnum, &handler)) {
        goto exit;
    }
    return_value = signal_signal_impl(module, signalnum, handler);

exit:
    return return_value;
}

PyDoc_STRVAR(signal_getsignal__doc__,
"getsignal($module, signalnum, /)\n"
"--\n"
"\n"
"Return the current action for the given signal.\n"
"\n"
"The return value can be:\n"
"  SIG_IGN -- if the signal is being ignored\n"
"  SIG_DFL -- if the default action for the signal is in effect\n"
"  None    -- if an unknown handler is in effect\n"
"  anything else -- the callable Python object used as a handler");

#define SIGNAL_GETSIGNAL_METHODDEF    \
    {"getsignal", (PyCFunction)signal_getsignal, METH_O, signal_getsignal__doc__},

static PyObject *
signal_getsignal_impl(PyObject *module, int signalnum);

static PyObject *
signal_getsignal(PyObject *module, PyObject *arg)
{
    PyObject *return_value = NULL;
    int signalnum;

    if (!PyArg_Parse(arg, "i:getsignal", &signalnum)) {
        goto exit;
    }
    return_value = signal_getsignal_impl(module, signalnum);

exit:
    return return_value;
}

#if defined(HAVE_SIGINTERRUPT)

PyDoc_STRVAR(signal_siginterrupt__doc__,
"siginterrupt($module, signalnum, flag, /)\n"
"--\n"
"\n"
"Change system call restart behaviour.\n"
"\n"
"If flag is False, system calls will be restarted when interrupted by\n"
"signal sig, else system calls will be interrupted.");

#define SIGNAL_SIGINTERRUPT_METHODDEF    \
    {"siginterrupt", (PyCFunction)signal_siginterrupt, METH_FASTCALL, signal_siginterrupt__doc__},

static PyObject *
signal_siginterrupt_impl(PyObject *module, int signalnum, int flag);

static PyObject *
signal_siginterrupt(PyObject *module, PyObject **args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    int signalnum;
    int flag;

    if (!_PyArg_NoStackKeywords("siginterrupt", kwnames)) {
        goto exit;
    }

    if (!_PyArg_ParseStack(args, nargs, "ii:siginterrupt",
        &signalnum, &flag)) {
        goto exit;
    }
    return_value = signal_siginterrupt_impl(module, signalnum, flag);

exit:
    return return_value;
}

#endif /* defined(HAVE_SIGINTERRUPT) */

#if defined(HAVE_SETITIMER)

PyDoc_STRVAR(signal_setitimer__doc__,
"setitimer($module, which, seconds, interval=0.0, /)\n"
"--\n"
"\n"
"Sets given itimer (one of ITIMER_REAL, ITIMER_VIRTUAL or ITIMER_PROF).\n"
"\n"
"The timer will fire after value seconds and after that every interval seconds.\n"
"The itimer can be cleared by setting seconds to zero.\n"
"\n"
"Returns old values as a tuple: (delay, interval).");

#define SIGNAL_SETITIMER_METHODDEF    \
    {"setitimer", (PyCFunction)signal_setitimer, METH_FASTCALL, signal_setitimer__doc__},

static PyObject *
signal_setitimer_impl(PyObject *module, int which, double seconds,
                      double interval);

static PyObject *
signal_setitimer(PyObject *module, PyObject **args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    int which;
    double seconds;
    double interval = 0.0;

    if (!_PyArg_NoStackKeywords("setitimer", kwnames)) {
        goto exit;
    }

    if (!_PyArg_ParseStack(args, nargs, "id|d:setitimer",
        &which, &seconds, &interval)) {
        goto exit;
    }
    return_value = signal_setitimer_impl(module, which, seconds, interval);

exit:
    return return_value;
}

#endif /* defined(HAVE_SETITIMER) */

#if defined(HAVE_GETITIMER)

PyDoc_STRVAR(signal_getitimer__doc__,
"getitimer($module, which, /)\n"
"--\n"
"\n"
"Returns current value of given itimer.");

#define SIGNAL_GETITIMER_METHODDEF    \
    {"getitimer", (PyCFunction)signal_getitimer, METH_O, signal_getitimer__doc__},

static PyObject *
signal_getitimer_impl(PyObject *module, int which);

static PyObject *
signal_getitimer(PyObject *module, PyObject *arg)
{
    PyObject *return_value = NULL;
    int which;

    if (!PyArg_Parse(arg, "i:getitimer", &which)) {
        goto exit;
    }
    return_value = signal_getitimer_impl(module, which);

exit:
    return return_value;
}

#endif /* defined(HAVE_GETITIMER) */

#if defined(PYPTHREAD_SIGMASK)

PyDoc_STRVAR(signal_pthread_sigmask__doc__,
"pthread_sigmask($module, how, mask, /)\n"
"--\n"
"\n"
"Fetch and/or change the signal mask of the calling thread.");

#define SIGNAL_PTHREAD_SIGMASK_METHODDEF    \
    {"pthread_sigmask", (PyCFunction)signal_pthread_sigmask, METH_FASTCALL, signal_pthread_sigmask__doc__},

static PyObject *
signal_pthread_sigmask_impl(PyObject *module, int how, PyObject *mask);

static PyObject *
signal_pthread_sigmask(PyObject *module, PyObject **args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    int how;
    PyObject *mask;

    if (!_PyArg_NoStackKeywords("pthread_sigmask", kwnames)) {
        goto exit;
    }

    if (!_PyArg_ParseStack(args, nargs, "iO:pthread_sigmask",
        &how, &mask)) {
        goto exit;
    }
    return_value = signal_pthread_sigmask_impl(module, how, mask);

exit:
    return return_value;
}

#endif /* defined(PYPTHREAD_SIGMASK) */

#if defined(HAVE_SIGPENDING)

PyDoc_STRVAR(signal_sigpending__doc__,
"sigpending($module, /)\n"
"--\n"
"\n"
"Examine pending signals.\n"
"\n"
"Returns a set of signal numbers that are pending for delivery to\n"
"the calling thread.");

#define SIGNAL_SIGPENDING_METHODDEF    \
    {"sigpending", (PyCFunction)signal_sigpending, METH_NOARGS, signal_sigpending__doc__},

static PyObject *
signal_sigpending_impl(PyObject *module);

static PyObject *
signal_sigpending(PyObject *module, PyObject *Py_UNUSED(ignored))
{
    return signal_sigpending_impl(module);
}

#endif /* defined(HAVE_SIGPENDING) */

#if defined(HAVE_SIGWAIT)

PyDoc_STRVAR(signal_sigwait__doc__,
"sigwait($module, sigset, /)\n"
"--\n"
"\n"
"Wait for a signal.\n"
"\n"
"Suspend execution of the calling thread until the delivery of one of the\n"
"signals specified in the signal set sigset.  The function accepts the signal\n"
"and returns the signal number.");

#define SIGNAL_SIGWAIT_METHODDEF    \
    {"sigwait", (PyCFunction)signal_sigwait, METH_O, signal_sigwait__doc__},

#endif /* defined(HAVE_SIGWAIT) */

#if defined(HAVE_SIGWAITINFO)

PyDoc_STRVAR(signal_sigwaitinfo__doc__,
"sigwaitinfo($module, sigset, /)\n"
"--\n"
"\n"
"Wait synchronously until one of the signals in *sigset* is delivered.\n"
"\n"
"Returns a struct_siginfo containing information about the signal.");

#define SIGNAL_SIGWAITINFO_METHODDEF    \
    {"sigwaitinfo", (PyCFunction)signal_sigwaitinfo, METH_O, signal_sigwaitinfo__doc__},

#endif /* defined(HAVE_SIGWAITINFO) */

#if defined(HAVE_SIGTIMEDWAIT)

PyDoc_STRVAR(signal_sigtimedwait__doc__,
"sigtimedwait($module, sigset, timeout, /)\n"
"--\n"
"\n"
"Like sigwaitinfo(), but with a timeout.\n"
"\n"
"The timeout is specified in seconds, with floating point numbers allowed.");

#define SIGNAL_SIGTIMEDWAIT_METHODDEF    \
    {"sigtimedwait", (PyCFunction)signal_sigtimedwait, METH_FASTCALL, signal_sigtimedwait__doc__},

static PyObject *
signal_sigtimedwait_impl(PyObject *module, PyObject *sigset,
                         PyObject *timeout_obj);

static PyObject *
signal_sigtimedwait(PyObject *module, PyObject **args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    PyObject *sigset;
    PyObject *timeout_obj;

    if (!_PyArg_NoStackKeywords("sigtimedwait", kwnames)) {
        goto exit;
    }

    if (!_PyArg_UnpackStack(args, nargs, "sigtimedwait",
        2, 2,
        &sigset, &timeout_obj)) {
        goto exit;
    }
    return_value = signal_sigtimedwait_impl(module, sigset, timeout_obj);

exit:
    return return_value;
}

#endif /* defined(HAVE_SIGTIMEDWAIT) */

#if (defined(HAVE_PTHREAD_KILL) && defined(WITH_THREAD))

PyDoc_STRVAR(signal_pthread_kill__doc__,
"pthread_kill($module, thread_id, signalnum, /)\n"
"--\n"
"\n"
"Send a signal to a thread.");

#define SIGNAL_PTHREAD_KILL_METHODDEF    \
    {"pthread_kill", (PyCFunction)signal_pthread_kill, METH_FASTCALL, signal_pthread_kill__doc__},

static PyObject *
signal_pthread_kill_impl(PyObject *module, unsigned long thread_id,
                         int signalnum);

static PyObject *
signal_pthread_kill(PyObject *module, PyObject **args, Py_ssize_t nargs, PyObject *kwnames)
{
    PyObject *return_value = NULL;
    unsigned long thread_id;
    int signalnum;

    if (!_PyArg_NoStackKeywords("pthread_kill", kwnames)) {
        goto exit;
    }

    if (!_PyArg_ParseStack(args, nargs, "ki:pthread_kill",
        &thread_id, &signalnum)) {
        goto exit;
    }
    return_value = signal_pthread_kill_impl(module, thread_id, signalnum);

exit:
    return return_value;
}

#endif /* (defined(HAVE_PTHREAD_KILL) && defined(WITH_THREAD)) */

#ifndef SIGNAL_ALARM_METHODDEF
    #define SIGNAL_ALARM_METHODDEF
#endif /* !defined(SIGNAL_ALARM_METHODDEF) */

#ifndef SIGNAL_PAUSE_METHODDEF
    #define SIGNAL_PAUSE_METHODDEF
#endif /* !defined(SIGNAL_PAUSE_METHODDEF) */

#ifndef SIGNAL_SIGINTERRUPT_METHODDEF
    #define SIGNAL_SIGINTERRUPT_METHODDEF
#endif /* !defined(SIGNAL_SIGINTERRUPT_METHODDEF) */

#ifndef SIGNAL_SETITIMER_METHODDEF
    #define SIGNAL_SETITIMER_METHODDEF
#endif /* !defined(SIGNAL_SETITIMER_METHODDEF) */

#ifndef SIGNAL_GETITIMER_METHODDEF
    #define SIGNAL_GETITIMER_METHODDEF
#endif /* !defined(SIGNAL_GETITIMER_METHODDEF) */

#ifndef SIGNAL_PTHREAD_SIGMASK_METHODDEF
    #define SIGNAL_PTHREAD_SIGMASK_METHODDEF
#endif /* !defined(SIGNAL_PTHREAD_SIGMASK_METHODDEF) */

#ifndef SIGNAL_SIGPENDING_METHODDEF
    #define SIGNAL_SIGPENDING_METHODDEF
#endif /* !defined(SIGNAL_SIGPENDING_METHODDEF) */

#ifndef SIGNAL_SIGWAIT_METHODDEF
    #define SIGNAL_SIGWAIT_METHODDEF
#endif /* !defined(SIGNAL_SIGWAIT_METHODDEF) */

#ifndef SIGNAL_SIGWAITINFO_METHODDEF
    #define SIGNAL_SIGWAITINFO_METHODDEF
#endif /* !defined(SIGNAL_SIGWAITINFO_METHODDEF) */

#ifndef SIGNAL_SIGTIMEDWAIT_METHODDEF
    #define SIGNAL_SIGTIMEDWAIT_METHODDEF
#endif /* !defined(SIGNAL_SIGTIMEDWAIT_METHODDEF) */

#ifndef SIGNAL_PTHREAD_KILL_METHODDEF
    #define SIGNAL_PTHREAD_KILL_METHODDEF
#endif /* !defined(SIGNAL_PTHREAD_KILL_METHODDEF) */
/*[clinic end generated code: output=1a795d863c3bb302 input=a9049054013a1b77]*/