Python signal.siginterrupt方法代码示例

# 需要导入模块: import signal [as 别名]
# 或者: from signal import siginterrupt [as 别名]
def installHandler(fd):
    """
    Install a signal handler which will write a byte to C{fd} when
    I{SIGCHLD} is received.

    This is implemented by installing a SIGCHLD handler that does nothing,
    setting the I{SIGCHLD} handler as not allowed to interrupt system calls,
    and using L{signal.set_wakeup_fd} to do the actual writing.

    @param fd: The file descriptor to which to write when I{SIGCHLD} is
        received.
    @type fd: C{int}
    """
    if fd == -1:
        signal.signal(signal.SIGCHLD, signal.SIG_DFL)
    else:
        def noopSignalHandler(*args):
            pass
        signal.signal(signal.SIGCHLD, noopSignalHandler)
        signal.siginterrupt(signal.SIGCHLD, False)
    return signal.set_wakeup_fd(fd) 

# 需要导入模块: import signal [as 别名]
# 或者: from signal import siginterrupt [as 别名]
def clone(self, proc=None):
        """clone([proc]) clones the supplied process object and manages it as
        well. If no process object is supplied then clone the first managed
        process found in this ProcManager.
        """
        if proc is None: # default to cloning first process found.
            procs = self._procs.values()
            if procs:
                proc = procs[0]
                del procs
            else:
                return
        signal.signal(SIGCHLD, SIG_DFL) # critical area
        newproc = proc.clone()
        self._procs[newproc.childpid] = newproc
        signal.signal(SIGCHLD, self._child_handler)
        signal.siginterrupt(SIGCHLD, False)
        return newproc 

# 需要导入模块: import signal [as 别名]
# 或者: from signal import siginterrupt [as 别名]
def start(self):
        self.last_profile_time = timer()

        if self.use_signal:
            try:
                signal.signal(signal.SIGALRM, self._signal)
                # the following tells the system to restart interrupted system calls if they are
                # interrupted before any data has been transferred. This avoids many of the problems
                # related to signals interrupting system calls, see issue #16
                signal.siginterrupt(signal.SIGALRM, False)
            except ValueError:
                raise NotMainThreadError()

            signal.setitimer(signal.ITIMER_REAL, self.interval, 0.0)
        else:
            sys.setprofile(self._profile) 

# 需要导入模块: import signal [as 别名]
# 或者: from signal import siginterrupt [as 别名]
def init_signals(self) -> None:
        # Set up signals through the event loop API.

        self.loop.add_signal_handler(signal.SIGQUIT, self.handle_quit,
                                     signal.SIGQUIT, None)

        self.loop.add_signal_handler(signal.SIGTERM, self.handle_exit,
                                     signal.SIGTERM, None)

        self.loop.add_signal_handler(signal.SIGINT, self.handle_quit,
                                     signal.SIGINT, None)

        self.loop.add_signal_handler(signal.SIGWINCH, self.handle_winch,
                                     signal.SIGWINCH, None)

        self.loop.add_signal_handler(signal.SIGUSR1, self.handle_usr1,
                                     signal.SIGUSR1, None)

        self.loop.add_signal_handler(signal.SIGABRT, self.handle_abort,
                                     signal.SIGABRT, None)

        # Don't let SIGTERM and SIGUSR1 disturb active requests
        # by interrupting system calls
        signal.siginterrupt(signal.SIGTERM, False)
        signal.siginterrupt(signal.SIGUSR1, False) 

# 需要导入模块: import signal [as 别名]
# 或者: from signal import siginterrupt [as 别名]
def init_signals(self):
        # reset signaling
        [signal.signal(s, signal.SIG_DFL) for s in self.SIGNALS]
        # init new signaling
        signal.signal(signal.SIGQUIT, self.handle_quit)
        signal.signal(signal.SIGTERM, self.handle_exit)
        signal.signal(signal.SIGINT, self.handle_quit)
        signal.signal(signal.SIGWINCH, self.handle_winch)
        signal.signal(signal.SIGUSR1, self.handle_usr1)
        signal.signal(signal.SIGABRT, self.handle_abort)

        # Don't let SIGTERM and SIGUSR1 disturb active requests
        # by interrupting system calls
        if hasattr(signal, 'siginterrupt'):  # python >= 2.6
            signal.siginterrupt(signal.SIGTERM, False)
            signal.siginterrupt(signal.SIGUSR1, False) 

# 需要导入模块: import signal [as 别名]
# 或者: from signal import siginterrupt [as 别名]
def stop(self, signum=None, frame=None):
        self.__tmpLog.info('Rank %s: stop signal %s received' % (self.__rank, signum))
        self.__stop = True
        block_sig(signum)
        signal.siginterrupt(signum, False)
        if self.__esJobManager:
            self.__esJobManager.terminate()
        self.getAccountingMetrics()
        self.dumpJobMetrics()
        self.heartbeat()
        #self.__esJobManager.terminate()
        self.__esJobManager.flushMessages()
        self.updateOutputs(signal=True, final=True)

        self.__tmpLog.info("Rank %s: post exec job" % self.__rank)
        self.postExecJob()
        #self.__tmpLog.info("Rank %s: finish job" % self.__rank)
        #self.finishJob()

        self.__tmpLog.info('Rank %s: stop' % self.__rank)
        #signal.siginterrupt(signum, True)
        unblock_sig(signum)
        #sys.exit(0) 

# 需要导入模块: import signal [as 别名]
# 或者: from signal import siginterrupt [as 别名]
def stop(self, signum=None, frame=None):
        self.tmpLog.info('stop signal %s received' % signum)
        block_sig(signum)
        signal.siginterrupt(signum, False)
        self.dumpJobMetrics()
        for jobId in self.jobsTimestamp:
            if self.jobsTimestamp[jobId]['endTime'] is None:
                self.jobsTimestamp[jobId]['endTime'] = time.time()
            if len(self.jobsRuningRanks[jobId]) > 0:
                self.jobsTimestamp[jobId]['endTime'] = time.time()
        self.dumpJobsStartTime()
        #self.flushMessages()
        #self.updateFailedEventRanges()
        # final dump
        self.tmpLog.info('final dumping')
        self.updateEventRangesToDB(force=True, final=True)
        #self.db.dumpUpdates(True)
        self.tmpLog.info("post Exec job")
        self.postExecJob()
        self.tmpLog.info('stop')
        #signal.siginterrupt(signum, True)
        unblock_sig(signum) 

# 需要导入模块: import signal [as 别名]
# 或者: from signal import siginterrupt [as 别名]
def _installHandlerUsingSetWakeup(fd):
    """
    Install a signal handler which will write a byte to C{fd} when
    I{SIGCHLD} is received.

    This is implemented by installing an instance of L{_Handler} wrapped
    around C{None}, setting the I{SIGCHLD} handler as not allowed to
    interrupt system calls, and using L{signal.set_wakeup_fd} to do the
    actual writing.

    @param fd: The file descriptor to which to write when I{SIGCHLD} is
        received.
    @type fd: C{int}
    """
    if fd == -1:
        signal.signal(signal.SIGCHLD, signal.SIG_DFL)
    else:
        signal.signal(signal.SIGCHLD, _Handler(None))
        siginterrupt(signal.SIGCHLD, False)
    return set_wakeup_fd(fd) 

# 需要导入模块: import signal [as 别名]
# 或者: from signal import siginterrupt [as 别名]
def handle_unix_signals(self):
        if iswindows:
            # TODO: test this on windows
            self.signal_read_socket, self.signal_write_socket = socket.socketpair()
            self.signal_read_socket.setblocking(False)
            self.signal_write_socket.setblocking(False)
            read_fd, write_fd = self.signal_read_socket.fileno(), self.signal_write_socket.fileno()
        else:
            read_fd, write_fd = pipe2()
        for sig in (signal.SIGINT, signal.SIGTERM):
            signal.signal(sig, lambda x, y: None)
            signal.siginterrupt(sig, False)
        signal.set_wakeup_fd(write_fd)
        self.signal_notifier = QSocketNotifier(read_fd, QSocketNotifier.Read, self)
        self.signal_notifier.setEnabled(True)
        self.signal_notifier.activated.connect(self.signal_received, type=Qt.QueuedConnection) 

# 需要导入模块: import signal [as 别名]
# 或者: from signal import siginterrupt [as 别名]
def command(self):
        setproctitle('taskd')
        self.basic_setup()
        self.keep_running = True
        self.restart_when_done = False
        base.log.info('Starting taskd, pid %s' % os.getpid())
        signal.signal(signal.SIGHUP, self.graceful_restart)
        signal.signal(signal.SIGTERM, self.graceful_stop)
        signal.signal(signal.SIGUSR1, self.log_current_task)
        # restore default behavior of not interrupting system calls
        # see http://docs.python.org/library/signal.html#signal.siginterrupt
        # and http://linux.die.net/man/3/siginterrupt
        signal.siginterrupt(signal.SIGHUP, False)
        signal.siginterrupt(signal.SIGTERM, False)
        signal.siginterrupt(signal.SIGUSR1, False)
        self.worker() 

# 需要导入模块: import signal [as 别名]
# 或者: from signal import siginterrupt [as 别名]
def init_signals(self):
        # Set up signals through the event loop API.

        self.loop.add_signal_handler(signal.SIGQUIT, self.handle_quit,
                                     signal.SIGQUIT, None)

        self.loop.add_signal_handler(signal.SIGTERM, self.handle_exit,
                                     signal.SIGTERM, None)

        self.loop.add_signal_handler(signal.SIGINT, self.handle_quit,
                                     signal.SIGINT, None)

        self.loop.add_signal_handler(signal.SIGWINCH, self.handle_winch,
                                     signal.SIGWINCH, None)

        self.loop.add_signal_handler(signal.SIGUSR1, self.handle_usr1,
                                     signal.SIGUSR1, None)

        self.loop.add_signal_handler(signal.SIGABRT, self.handle_abort,
                                     signal.SIGABRT, None)

        # Don't let SIGTERM and SIGUSR1 disturb active requests
        # by interrupting system calls
        signal.siginterrupt(signal.SIGTERM, False)
        signal.siginterrupt(signal.SIGUSR1, False) 

# 需要导入模块: import signal [as 别名]
# 或者: from signal import siginterrupt [as 别名]
def init_signals(self):
        # Set up signals through the event loop API.

        self.loop.add_signal_handler(
            signal.SIGQUIT, self.handle_quit, signal.SIGQUIT, None
        )

        self.loop.add_signal_handler(
            signal.SIGTERM, self.handle_exit, signal.SIGTERM, None
        )

        self.loop.add_signal_handler(
            signal.SIGINT, self.handle_quit, signal.SIGINT, None
        )

        self.loop.add_signal_handler(
            signal.SIGWINCH, self.handle_winch, signal.SIGWINCH, None
        )

        self.loop.add_signal_handler(
            signal.SIGUSR1, self.handle_usr1, signal.SIGUSR1, None
        )

        self.loop.add_signal_handler(
            signal.SIGABRT, self.handle_abort, signal.SIGABRT, None
        )

        # Don't let SIGTERM and SIGUSR1 disturb active requests
        # by interrupting system calls
        signal.siginterrupt(signal.SIGTERM, False)
        signal.siginterrupt(signal.SIGUSR1, False) 

# 需要导入模块: import signal [as 别名]
# 或者: from signal import siginterrupt [as 别名]
def init_signals(self):
        # reset signaling
        [signal.signal(s, signal.SIG_DFL) for s in self.SIGNALS]
        # init new signaling
        signal.signal(signal.SIGQUIT, self.handle_quit)
        signal.signal(signal.SIGTERM, self.handle_exit)
        signal.signal(signal.SIGINT, self.handle_quit)
        signal.signal(signal.SIGWINCH, self.handle_winch)
        signal.signal(signal.SIGUSR1, self.handle_usr1)
        signal.signal(signal.SIGABRT, self.handle_abort)

        # Don't let SIGTERM and SIGUSR1 disturb active requests
        # by interrupting system calls
        if hasattr(signal, 'siginterrupt'):  # python >= 2.6
            signal.siginterrupt(signal.SIGTERM, False)
            signal.siginterrupt(signal.SIGUSR1, False)

        if hasattr(signal, 'set_wakeup_fd'):
            signal.set_wakeup_fd(self.PIPE[1]) 

# 需要导入模块: import signal [as 别名]
# 或者: from signal import siginterrupt [as 别名]
def main():
    """Parses the arguments and call worker()"""
    # Set the signal handler
    for s in [signal.SIGINT, signal.SIGTERM]:
        signal.signal(s, shutdown)
        signal.siginterrupt(s, False)
    parser = ArgumentParser(description=__doc__)
    parser.add_argument(
        '--sensor', metavar='SENSOR[:SENSOR]',
        help='sensor to check, optionally with a long name, defaults to all.',
    )
    parser.add_argument(
        '--directory', metavar='DIR',
        help='base directory (defaults to /ivre/passiverecon/).',
        default="/ivre/passiverecon/",
    )
    parser.add_argument(
        '--progname', metavar='PROG',
        help='Program to run (defaults to ivre passiverecon2db).',
        default="ivre passiverecon2db",
    )
    args = parser.parse_args()
    if args.sensor is not None:
        SENSORS.update(dict([args.sensor.split(':', 1)
                             if ':' in args.sensor
                             else [args.sensor, args.sensor]]))
        sensor = args.sensor.split(':', 1)[0]
    else:
        sensor = None
    worker(args.progname, args.directory, sensor=sensor) 

# 需要导入模块: import signal [as 别名]
# 或者: from signal import siginterrupt [as 别名]
def test_without_siginterrupt(self):
        """If a signal handler is installed and siginterrupt is not called
        at all, when that signal arrives, it interrupts a syscall that's in
        progress.
        """
        i = self.readpipe_interrupted()
        self.assertTrue(i)
        # Arrival of the signal shouldn't have changed anything.
        i = self.readpipe_interrupted()
        self.assertTrue(i)