Python log.msg函数代码示例

    def handleAccept(self, rc, evt):
        if self.disconnecting or self.disconnected:
            return False

        # possible errors:
        # (WSAEMFILE, WSAENOBUFS, WSAENFILE, WSAENOMEM, WSAECONNABORTED)
        if rc:
            log.msg("Could not accept new connection -- %s (%s)" %
                    (errno.errorcode.get(rc, 'unknown error'), rc))
            return False
        else:
            evt.newskt.setsockopt(socket.SOL_SOCKET, SO_UPDATE_ACCEPT_CONTEXT,
                                  struct.pack('I', self.socket.fileno()))
            family, lAddr, rAddr = _iocp.get_accept_addrs(evt.newskt.fileno(),
                                                          evt.buff)
            assert family == self.addressFamily

            protocol = self.factory.buildProtocol(
                address._ServerFactoryIPv4Address('TCP', rAddr[0], rAddr[1]))
            if protocol is None:
                evt.newskt.close()
            else:
                s = self.sessionno
                self.sessionno = s+1
                transport = Server(evt.newskt, protocol,
                        address.IPv4Address('TCP', rAddr[0], rAddr[1], 'INET'),
                        address.IPv4Address('TCP', lAddr[0], lAddr[1], 'INET'),
                        s, self.reactor)
                protocol.makeConnection(transport)
            return True

    def connectionLost(self, reason):
        """
        Cleans up the socket.
        """
        log.msg('(Port %s Closed)' % self._realPortNumber)
        self._realPortNumber = None
        d = None
        if hasattr(self, "deferred"):
            d = self.deferred
            del self.deferred

        self.disconnected = True
        self.reactor.removeActiveHandle(self)
        self.connected = False
        self._closeSocket()
        del self.socket
        del self.getFileHandle

        try:
            self.factory.doStop()
        except:
            self.disconnecting = False
            if d is not None:
                d.errback(failure.Failure())
            else:
                raise
        else:
            self.disconnecting = False
            if d is not None:
                d.callback(None)

    def doWaitForMultipleEvents(self, timeout):
        log.msg(channel='system', event='iteration', reactor=self)
        if timeout is None:
            #timeout = INFINITE
            timeout = 100
        else:
            timeout = int(timeout * 1000)

        if not (self._events or self._writes):
            # sleep so we don't suck up CPU time
            time.sleep(timeout / 1000.0)
            return

        canDoMoreWrites = 0
        for fd in self._writes.keys():
            if log.callWithLogger(fd, self._runWrite, fd):
                canDoMoreWrites = 1

        if canDoMoreWrites:
            timeout = 0

        handles = self._events.keys() or [self.dummyEvent]
        val = MsgWaitForMultipleObjects(handles, 0, timeout, QS_ALLINPUT | QS_ALLEVENTS)
        if val == WAIT_TIMEOUT:
            return
        elif val == WAIT_OBJECT_0 + len(handles):
            exit = win32gui.PumpWaitingMessages()
            if exit:
                self.callLater(0, self.stop)
                return
        elif val >= WAIT_OBJECT_0 and val < WAIT_OBJECT_0 + len(handles):
            fd, action = self._events[handles[val - WAIT_OBJECT_0]]
            log.callWithLogger(fd, self._runAction, action, fd)

    def _readAndWrite(self, source, condition):
        # note: gtk-1.2's gtk_input_add presents an API in terms of gdk
        # constants like INPUT_READ and INPUT_WRITE. Internally, it will add
        # POLL_HUP and POLL_ERR to the poll() events, but if they happen it
        # will turn them back into INPUT_READ and INPUT_WRITE. gdkevents.c
        # maps IN/HUP/ERR to INPUT_READ, and OUT/ERR to INPUT_WRITE. This
        # means there is no immediate way to detect a disconnected socket.

        # The g_io_add_watch() API is more suited to this task. I don't think
        # pygtk exposes it, though.
        why = None
        didRead = None
        try:
            if condition & gtk.GDK.INPUT_READ:
                why = source.doRead()
                didRead = source.doRead
            if not why and condition & gtk.GDK.INPUT_WRITE:
                # if doRead caused connectionLost, don't call doWrite
                # if doRead is doWrite, don't call it again.
                if not source.disconnected and source.doWrite != didRead:
                    why = source.doWrite()
                    didRead = source.doWrite # if failed it was in write
        except:
            why = sys.exc_info()[1]
            log.msg('Error In %s' % source)
            log.deferr()

        if why:
            self._disconnectSelectable(source, why, didRead == source.doRead)

def unpickleMethod(im_name,
                    im_self,
                    im_class):
    'support function for copy_reg to unpickle method refs'
    try:
        unbound = getattr(im_class,im_name)
        if im_self is None:
            return unbound
        bound=instancemethod(unbound.im_func,
                                 im_self,
                                 im_class)
        return bound
    except AttributeError:
        log.msg("Method",im_name,"not on class",im_class)
        assert im_self is not None,"No recourse: no instance to guess from."
        # Attempt a common fix before bailing -- if classes have
        # changed around since we pickled this method, we may still be
        # able to get it by looking on the instance's current class.
        unbound = getattr(im_self.__class__,im_name)
        log.msg("Attempting fixup with",unbound)
        if im_self is None:
            return unbound
        bound=instancemethod(unbound.im_func,
                                 im_self,
                                 im_self.__class__)
        return bound

def unpickleModule(name):
    'support function for copy_reg to unpickle module refs'
    if oldModules.has_key(name):
        log.msg("Module has moved: %s" % name)
        name = oldModules[name]
        log.msg(name)
    return __import__(name,{},{},'x')

    def startListening(self):
        """Create and bind my socket, and begin listening on it.

        This is called on unserialization, and must be called after creating a
        server to begin listening on the specified port.
        """
        log.msg("%s starting on %r" % (self.factory.__class__, repr(self.port)))
        if self.wantPID:
            self.lockFile = lockfile.FilesystemLock(self.port + ".lock")
            if not self.lockFile.lock():
                raise CannotListenError, (None, self.port, "Cannot acquire lock")
            else:
                if not self.lockFile.clean:
                    try:
                        # This is a best-attempt at cleaning up
                        # left-over unix sockets on the filesystem.
                        # If it fails, there's not much else we can
                        # do.  The bind() below will fail with an
                        # exception that actually propegates.
                        if stat.S_ISSOCK(os.stat(self.port).st_mode):
                            os.remove(self.port)
                    except:
                        pass

        self.factory.doStart()
        try:
            skt = self.createInternetSocket()
            skt.bind(self.port)
        except socket.error, le:
            raise CannotListenError, (None, self.port, le)

 def __getstate__(self):
     log.msg( "WARNING: serializing ephemeral %s" % self )
     import gc
     if getattr(gc, 'get_referrers', None):
         for r in gc.get_referrers(self):
             log.msg( " referred to by %s" % (r,))
     return None

    def _doReadOrWrite(self, source, condition, faildict={
        error.ConnectionDone: failure.Failure(error.ConnectionDone()),
        error.ConnectionLost: failure.Failure(error.ConnectionLost()),
        }):
        why = None
        inRead = False
        if condition & POLL_DISCONNECTED and not (condition & gobject.IO_IN):
            if source in self._reads:
                why = main.CONNECTION_DONE
                inRead = True
            else:
                why = main.CONNECTION_LOST
        else:
            try:
                if condition & gobject.IO_IN:
                    why = source.doRead()
                    inRead = True
                if not why and condition & gobject.IO_OUT:
                    # if doRead caused connectionLost, don't call doWrite
                    # if doRead is doWrite, don't call it again.
                    if not source.disconnected:
                        why = source.doWrite()
            except:
                why = sys.exc_info()[1]
                log.msg('Error In %s' % source)
                log.deferr()

        if why:
            self._disconnectSelectable(source, why, inRead)

 def throttleReads(self):
     """
     Throttle reads on all protocols.
     """
     log.msg("Throttling reads on %s" % self)
     for p in self.protocols.keys():
         p.throttleReads()

 def throttleWrites(self):
     """
     Throttle writes on all protocols.
     """
     log.msg("Throttling writes on %s" % self)
     for p in self.protocols.keys():
         p.throttleWrites()

    def reapProcess(self):
        """
        Try to reap a process (without blocking) via waitpid.

        This is called when sigchild is caught or a Process object loses its
        "connection" (stdout is closed) This ought to result in reaping all
        zombie processes, since it will be called twice as often as it needs
        to be.

        (Unfortunately, this is a slightly experimental approach, since
        UNIX has no way to be really sure that your process is going to
        go away w/o blocking.  I don't want to block.)
        """
        try:
            try:
                pid, status = os.waitpid(self.pid, os.WNOHANG)
            except OSError, e:
                if e.errno == errno.ECHILD:
                    # no child process
                    pid = None
                else:
                    raise
        except:
            log.msg('Failed to reap %d:' % self.pid)
            log.err()
            pid = None
        if pid:
            self.processEnded(status)
            unregisterReapProcessHandler(pid, self)

 def jelly(self, obj):
     try:
         ao = self.jellyToAO(obj)
         return ao
     except:
         log.msg("Error jellying object! Stacktrace follows::")
         log.msg(string.join(self.stack, '\n'))
         raise

 def _bindSocket(self):
     log.msg("%s starting on %s"%(self.protocol.__class__, repr(self.port)))
     try:
         skt = self.createInternetSocket() # XXX: haha misnamed method
         if self.port:
             skt.bind(self.port)
     except socket.error, le:
         raise error.CannotListenError, (None, self.port, le)

 def processExited(self, reason):
     msg('processExited(%r)' % (reason,))
     # Protect the Deferred from the failure so that it follows
     # the callback chain.  This doesn't use the errback chain
     # because it wants to make sure reason is a Failure.  An
     # Exception would also make an errback-based test pass, and
     # that would be wrong.
     exited.callback([reason])