How to use the spaghetti.State function in spaghetti

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github meejah / txtorcon / txtorcon / torcontrolprotocol.py View on Github external
See the helper method :func:`txtorcon.build_tor_connection`.
        """

        ## variables related to the state machine
        self.defer = None               # Deferred we returned for the current command
        self.response = ''
        self.code = None
        self.command = None             # currently processing this command
        self.commands = []              # queued commands

        ## Here we build up the state machine. Mostly it's pretty
        ## simply, confounded by the fact that 600's (notify) can come
        ## at any time AND can be multi-line itself. Luckily, these
        ## can't be nested, nor can the responses be interleaved.

        idle = State("IDLE")
        recv = State("RECV")
        recvmulti = State("RECV_PLUS")
        recvnotify = State("NOTIFY_MULTILINE")

        idle.add_transition(Transition(idle,
                                       self._is_single_line_response,
                                       self._broadcast_response))
        idle.add_transition(Transition(recvmulti,
                                       self._is_multi_line,
                                       self._start_command))
        idle.add_transition(Transition(recv,
                                       self._is_continuation_line,
                                       self._start_command))

        recv.add_transition(Transition(recv,
                                       self._is_continuation_line,
github meejah / txtorcon / txtorcon / torstate.py View on Github external
self.cleanup = None             # see set_attacher

        class die(object):
            def __init__(self, msg):
                self.msg = msg
            def __call__(self, *args):
                raise RuntimeError(self.msg%tuple(args))

        def nothing(*args):
            pass

        eat_line = State("eat_line")
        waiting_r = State("waiting_r")
        waiting_w = State("waiting_r")
        waiting_p = State("waiting_r")
        waiting_s = State("waiting_r")

        eat_line.add_transition(Transition(waiting_r, lambda x: True, nothing))
        
        waiting_r.add_transition(Transition(eat_line, lambda x: x.strip() == '.' or x.strip() == 'OK', nothing))
        waiting_r.add_transition(Transition(waiting_s, lambda x: x[:2] == 'r ', self._router_begin))
        ## FIXME use better method/func than die!!
        waiting_r.add_transition(Transition(eat_line, lambda x: x[:2] != 'r ', die('Expected "r " while parsing routers not "%s"')))
        
        waiting_s.add_transition(Transition(waiting_w, lambda x: x[:2] == 's ', self._router_flags))
        waiting_s.add_transition(Transition(eat_line, lambda x: x[:2] != 's ', die('Expected "s " while parsing routers not "%s"')))
        waiting_s.add_transition(Transition(eat_line, lambda x: x.strip() == '.', nothing))
        
        waiting_w.add_transition(Transition(waiting_p, lambda x: x[:2] == 'w ', self._router_bandwidth))
        waiting_w.add_transition(Transition(waiting_s, lambda x: x[:2] == 'r ', self._router_begin)) # "w" lines are optional
        waiting_w.add_transition(Transition(eat_line, lambda x: x[:2] != 'w ', die('Expected "w " while parsing routers not "%s"')))
        waiting_w.add_transition(Transition(eat_line, lambda x: x.strip() == '.', nothing))
github meejah / txtorcon / txtorcon / torcontrolprotocol.py View on Github external
## variables related to the state machine
        self.defer = None               # Deferred we returned for the current command
        self.response = ''
        self.code = None
        self.command = None             # currently processing this command
        self.commands = []              # queued commands

        ## Here we build up the state machine. Mostly it's pretty
        ## simply, confounded by the fact that 600's (notify) can come
        ## at any time AND can be multi-line itself. Luckily, these
        ## can't be nested, nor can the responses be interleaved.

        idle = State("IDLE")
        recv = State("RECV")
        recvmulti = State("RECV_PLUS")
        recvnotify = State("NOTIFY_MULTILINE")

        idle.add_transition(Transition(idle,
                                       self._is_single_line_response,
                                       self._broadcast_response))
        idle.add_transition(Transition(recvmulti,
                                       self._is_multi_line,
                                       self._start_command))
        idle.add_transition(Transition(recv,
                                       self._is_continuation_line,
                                       self._start_command))

        recv.add_transition(Transition(recv,
                                       self._is_continuation_line,
                                       self._accumulate_response))
        recv.add_transition(Transition(idle,
                                       self._is_finish_line,
github meejah / txtorcon / txtorcon / torstate.py View on Github external
self.authorities = {}           # keys by name

        self.cleanup = None             # see set_attacher

        class die(object):
            def __init__(self, msg):
                self.msg = msg
            def __call__(self, *args):
                raise RuntimeError(self.msg%tuple(args))

        def nothing(*args):
            pass

        eat_line = State("eat_line")
        waiting_r = State("waiting_r")
        waiting_w = State("waiting_r")
        waiting_p = State("waiting_r")
        waiting_s = State("waiting_r")

        eat_line.add_transition(Transition(waiting_r, lambda x: True, nothing))
        
        waiting_r.add_transition(Transition(eat_line, lambda x: x.strip() == '.' or x.strip() == 'OK', nothing))
        waiting_r.add_transition(Transition(waiting_s, lambda x: x[:2] == 'r ', self._router_begin))
        ## FIXME use better method/func than die!!
        waiting_r.add_transition(Transition(eat_line, lambda x: x[:2] != 'r ', die('Expected "r " while parsing routers not "%s"')))
        
        waiting_s.add_transition(Transition(waiting_w, lambda x: x[:2] == 's ', self._router_flags))
        waiting_s.add_transition(Transition(eat_line, lambda x: x[:2] != 's ', die('Expected "s " while parsing routers not "%s"')))
        waiting_s.add_transition(Transition(eat_line, lambda x: x.strip() == '.', nothing))
        
        waiting_w.add_transition(Transition(waiting_p, lambda x: x[:2] == 'w ', self._router_bandwidth))
        waiting_w.add_transition(Transition(waiting_s, lambda x: x[:2] == 'r ', self._router_begin)) # "w" lines are optional
github meejah / txtorcon / txtorcon / torcontrolprotocol.py View on Github external
"""

        ## variables related to the state machine
        self.defer = None               # Deferred we returned for the current command
        self.response = ''
        self.code = None
        self.command = None             # currently processing this command
        self.commands = []              # queued commands

        ## Here we build up the state machine. Mostly it's pretty
        ## simply, confounded by the fact that 600's (notify) can come
        ## at any time AND can be multi-line itself. Luckily, these
        ## can't be nested, nor can the responses be interleaved.

        idle = State("IDLE")
        recv = State("RECV")
        recvmulti = State("RECV_PLUS")
        recvnotify = State("NOTIFY_MULTILINE")

        idle.add_transition(Transition(idle,
                                       self._is_single_line_response,
                                       self._broadcast_response))
        idle.add_transition(Transition(recvmulti,
                                       self._is_multi_line,
                                       self._start_command))
        idle.add_transition(Transition(recv,
                                       self._is_continuation_line,
                                       self._start_command))

        recv.add_transition(Transition(recv,
                                       self._is_continuation_line,
                                       self._accumulate_response))
github meejah / txtorcon / txtorcon / torstate.py View on Github external
self.entry_guards = {}          # from GETINFO entry-guards, our current entry guards
        self.unusable_entry_guards = [] # list of entry guards we didn't parse out
        self.authorities = {}           # keys by name

        self.cleanup = None             # see set_attacher

        class die(object):
            def __init__(self, msg):
                self.msg = msg
            def __call__(self, *args):
                raise RuntimeError(self.msg%tuple(args))

        def nothing(*args):
            pass

        eat_line = State("eat_line")
        waiting_r = State("waiting_r")
        waiting_w = State("waiting_r")
        waiting_p = State("waiting_r")
        waiting_s = State("waiting_r")

        eat_line.add_transition(Transition(waiting_r, lambda x: True, nothing))
        
        waiting_r.add_transition(Transition(eat_line, lambda x: x.strip() == '.' or x.strip() == 'OK', nothing))
        waiting_r.add_transition(Transition(waiting_s, lambda x: x[:2] == 'r ', self._router_begin))
        ## FIXME use better method/func than die!!
        waiting_r.add_transition(Transition(eat_line, lambda x: x[:2] != 'r ', die('Expected "r " while parsing routers not "%s"')))
        
        waiting_s.add_transition(Transition(waiting_w, lambda x: x[:2] == 's ', self._router_flags))
        waiting_s.add_transition(Transition(eat_line, lambda x: x[:2] != 's ', die('Expected "s " while parsing routers not "%s"')))
        waiting_s.add_transition(Transition(eat_line, lambda x: x.strip() == '.', nothing))
github meejah / txtorcon / txtorcon / torstate.py View on Github external
class die(object):
            __name__ = 'die'            # FIXME? just to ease spagetti.py:82's pain

            def __init__(self, msg):
                self.msg = msg
                
            def __call__(self, *args):
                raise RuntimeError(self.msg % tuple(args))

        def nothing(*args):
            pass

        waiting_r = State("waiting_r")
        waiting_w = State("waiting_w")
        waiting_p = State("waiting_p")
        waiting_s = State("waiting_s")

        def ignorable_line(x):
            return x.strip() == '.' or x.strip() == 'OK' or x[:3] == 'ns/' or x.strip() == ''

        waiting_r.add_transition(Transition(waiting_r, ignorable_line, nothing))
        waiting_r.add_transition(Transition(waiting_s, lambda x: x[:2] == 'r ', self._router_begin))
        ## FIXME use better method/func than die!!
        waiting_r.add_transition(Transition(waiting_r, lambda x: x[:2] != 'r ', die('Expected "r " while parsing routers not "%s"')))

        waiting_s.add_transition(Transition(waiting_w, lambda x: x[:2] == 's ', self._router_flags))
        waiting_s.add_transition(Transition(waiting_r, ignorable_line, nothing))
        waiting_s.add_transition(Transition(waiting_r, lambda x: x[:2] != 's ', die('Expected "s " while parsing routers not "%s"')))
        waiting_s.add_transition(Transition(waiting_r, lambda x: x.strip() == '.', nothing))

        waiting_w.add_transition(Transition(waiting_p, lambda x: x[:2] == 'w ', self._router_bandwidth))
        waiting_w.add_transition(Transition(waiting_r, ignorable_line, nothing))
github meejah / txtorcon / txtorcon / torstate.py View on Github external
self.cleanup = None             # see set_attacher

        class die(object):
            def __init__(self, msg):
                self.msg = msg
            def __call__(self, *args):
                raise RuntimeError(self.msg%tuple(args))

        def nothing(*args):
            pass

        eat_line = State("eat_line")
        waiting_r = State("waiting_r")
        waiting_w = State("waiting_r")
        waiting_p = State("waiting_r")
        waiting_s = State("waiting_r")

        eat_line.add_transition(Transition(waiting_r, lambda x: True, nothing))
        
        waiting_r.add_transition(Transition(eat_line, lambda x: x.strip() == '.' or x.strip() == 'OK', nothing))
        waiting_r.add_transition(Transition(waiting_s, lambda x: x[:2] == 'r ', self._router_begin))
        ## FIXME use better method/func than die!!
        waiting_r.add_transition(Transition(eat_line, lambda x: x[:2] != 'r ', die('Expected "r " while parsing routers not "%s"')))
        
        waiting_s.add_transition(Transition(waiting_w, lambda x: x[:2] == 's ', self._router_flags))
        waiting_s.add_transition(Transition(eat_line, lambda x: x[:2] != 's ', die('Expected "s " while parsing routers not "%s"')))
        waiting_s.add_transition(Transition(eat_line, lambda x: x.strip() == '.', nothing))
        
        waiting_w.add_transition(Transition(waiting_p, lambda x: x[:2] == 'w ', self._router_bandwidth))
        waiting_w.add_transition(Transition(waiting_s, lambda x: x[:2] == 'r ', self._router_begin)) # "w" lines are optional
        waiting_w.add_transition(Transition(eat_line, lambda x: x[:2] != 'w ', die('Expected "w " while parsing routers not "%s"')))
github meejah / txtorcon / txtorcon / torstate.py View on Github external
self.cleanup = None             # see set_attacher

        class die(object):
            __name__ = 'die'            # FIXME? just to ease spagetti.py:82's pain

            def __init__(self, msg):
                self.msg = msg
                
            def __call__(self, *args):
                raise RuntimeError(self.msg % tuple(args))

        def nothing(*args):
            pass

        waiting_r = State("waiting_r")
        waiting_w = State("waiting_w")
        waiting_p = State("waiting_p")
        waiting_s = State("waiting_s")

        def ignorable_line(x):
            return x.strip() == '.' or x.strip() == 'OK' or x[:3] == 'ns/' or x.strip() == ''

        waiting_r.add_transition(Transition(waiting_r, ignorable_line, nothing))
        waiting_r.add_transition(Transition(waiting_s, lambda x: x[:2] == 'r ', self._router_begin))
        ## FIXME use better method/func than die!!
        waiting_r.add_transition(Transition(waiting_r, lambda x: x[:2] != 'r ', die('Expected "r " while parsing routers not "%s"')))

        waiting_s.add_transition(Transition(waiting_w, lambda x: x[:2] == 's ', self._router_flags))
        waiting_s.add_transition(Transition(waiting_r, ignorable_line, nothing))
        waiting_s.add_transition(Transition(waiting_r, lambda x: x[:2] != 's ', die('Expected "s " while parsing routers not "%s"')))
        waiting_s.add_transition(Transition(waiting_r, lambda x: x.strip() == '.', nothing))
github meejah / txtorcon / txtorcon / torstate.py View on Github external
self.cleanup = None             # see set_attacher

        class die(object):
            __name__ = 'die'            # FIXME? just to ease spagetti.py:82's pain

            def __init__(self, msg):
                self.msg = msg
                
            def __call__(self, *args):
                raise RuntimeError(self.msg % tuple(args))

        def nothing(*args):
            pass

        waiting_r = State("waiting_r")
        waiting_w = State("waiting_w")
        waiting_p = State("waiting_p")
        waiting_s = State("waiting_s")

        def ignorable_line(x):
            return x.strip() == '.' or x.strip() == 'OK' or x[:3] == 'ns/' or x.strip() == ''

        waiting_r.add_transition(Transition(waiting_r, ignorable_line, nothing))
        waiting_r.add_transition(Transition(waiting_s, lambda x: x[:2] == 'r ', self._router_begin))
        ## FIXME use better method/func than die!!
        waiting_r.add_transition(Transition(waiting_r, lambda x: x[:2] != 'r ', die('Expected "r " while parsing routers not "%s"')))

        waiting_s.add_transition(Transition(waiting_w, lambda x: x[:2] == 's ', self._router_flags))
        waiting_s.add_transition(Transition(waiting_r, ignorable_line, nothing))
        waiting_s.add_transition(Transition(waiting_r, lambda x: x[:2] != 's ', die('Expected "s " while parsing routers not "%s"')))
        waiting_s.add_transition(Transition(waiting_r, lambda x: x.strip() == '.', nothing))

spaghetti

Analysis of Network-constrained Spatial Data

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