1 files changed, 0 insertions, 302 deletions
diff --git a/third_party/buildbot/pylibs/twisted/internet/task.py b/third_party/buildbot/pylibs/twisted/internet/task.py
deleted file mode 100644
index 09f61eb..0000000
--- a/third_party/buildbot/pylibs/twisted/internet/task.py
+++ /dev/null
@@ -1,302 +0,0 @@
-# -*- test-case-name: twisted.test.test_task -*-
-# Copyright (c) 2001-2004 Twisted Matrix Laboratories.
-# See LICENSE for details.
-
-
-"""Scheduling utility methods and classes.
-
-API Stability: Unstable
-
-@author: U{Jp Calderone<mailto:exarkun@twistedmatrix.com>}
-"""
-
-__metaclass__ = type
-
-import time
-
-from twisted.python.runtime import seconds
-from twisted.python import reflect
-
-from twisted.internet import defer
-
-
-class LoopingCall:
-    """Call a function repeatedly.
-
-    @ivar f: The function to call.
-    @ivar a: A tuple of arguments to pass the function.
-    @ivar kw: A dictionary of keyword arguments to pass to the function.
-
-    If C{f} returns a deferred, rescheduling will not take place until the
-    deferred has fired. The result value is ignored.
-    """
-
-    call = None
-    running = False
-    deferred = None
-    interval = None
-    count = None
-    starttime = None
-
-    def _callLater(self, delay):
-        from twisted.internet import reactor
-        return reactor.callLater(delay, self)
-
-    _seconds = staticmethod(seconds)
-
-    def __init__(self, f, *a, **kw):
-        self.f = f
-        self.a = a
-        self.kw = kw
-
-    def start(self, interval, now=True):
-        """Start running function every interval seconds.
-
-        @param interval: The number of seconds between calls.  May be
-        less than one.  Precision will depend on the underlying
-        platform, the available hardware, and the load on the system.
-
-        @param now: If True, run this call right now.  Otherwise, wait
-        until the interval has elapsed before beginning.
-
-        @return: A Deferred whose callback will be invoked with
-        C{self} when C{self.stop} is called, or whose errback will be
-        invoked when the function raises an exception or returned a
-        deferred that has its errback invoked.
-        """
-        assert not self.running, ("Tried to start an already running "
-                                  "LoopingCall.")
-        if interval < 0:
-            raise ValueError, "interval must be >= 0"
-        self.running = True
-        d = self.deferred = defer.Deferred()
-        self.starttime = self._seconds()
-        self.count = 0
-        self.interval = interval
-        if now:
-            self()
-        else:
-            self._reschedule()
-        return d
-
-    def stop(self):
-        """Stop running function.
-        """
-        assert self.running, ("Tried to stop a LoopingCall that was "
-                              "not running.")
-        self.running = False
-        if self.call is not None:
-            self.call.cancel()
-            self.call = None
-            d, self.deferred = self.deferred, None
-            d.callback(self)
-
-    def __call__(self):
-        def cb(result):
-            if self.running:
-                self._reschedule()
-            else:
-                d, self.deferred = self.deferred, None
-                d.callback(self)
-
-        def eb(failure):
-            self.running = False
-            d, self.deferred = self.deferred, None
-            d.errback(failure)
-
-        self.call = None
-        d = defer.maybeDeferred(self.f, *self.a, **self.kw)
-        d.addCallback(cb)
-        d.addErrback(eb)
-
-    def _reschedule(self):
-        if self.interval == 0:
-            self.call = self._callLater(0)
-            return
-
-        fromNow = self.starttime - self._seconds()
-
-        while self.running:
-            self.count += 1
-            fromStart = self.count * self.interval
-            delay = fromNow + fromStart
-            if delay > 0:
-                self.call = self._callLater(delay)
-                return
-
-    def __repr__(self):
-        if hasattr(self.f, 'func_name'):
-            func = self.f.func_name
-            if hasattr(self.f, 'im_class'):
-                func = self.f.im_class.__name__ + '.' + func
-        else:
-            func = reflect.safe_repr(self.f)
-
-        return 'LoopingCall<%r>(%s, *%s, **%s)' % (
-            self.interval, func, reflect.safe_repr(self.a),
-            reflect.safe_repr(self.kw))
-
-
-
-class SchedulerStopped(Exception):
-    """
-    The operation could not complete because the scheduler was stopped in
-    progress or was already stopped.
-    """
-
-
-
-class _Timer(object):
-    MAX_SLICE = 0.01
-    def __init__(self):
-        self.end = time.time() + self.MAX_SLICE
-
-
-    def __call__(self):
-        return time.time() >= self.end
-
-
-
-_EPSILON = 0.00000001
-def _defaultScheduler(x):
-    from twisted.internet import reactor
-    return reactor.callLater(_EPSILON, x)
-
-
-
-class Cooperator(object):
-    """
-    Cooperative task scheduler.
-    """
-
-    def __init__(self,
-                 terminationPredicateFactory=_Timer,
-                 scheduler=_defaultScheduler,
-                 started=True):
-        """
-        Create a scheduler-like object to which iterators may be added.
-
-        @param terminationPredicateFactory: A no-argument callable which will
-        be invoked at the beginning of each step and should return a
-        no-argument callable which will return False when the step should be
-        terminated.  The default factory is time-based and allows iterators to
-        run for 1/100th of a second at a time.
-
-        @param scheduler: A one-argument callable which takes a no-argument
-        callable and should invoke it at some future point.  This will be used
-        to schedule each step of this Cooperator.
-
-        @param started: A boolean which indicates whether iterators should be
-        stepped as soon as they are added, or if they will be queued up until
-        L{Cooperator.start} is called.
-        """
-        self.iterators = []
-        self._metarator = iter(())
-        self._terminationPredicateFactory = terminationPredicateFactory
-        self._scheduler = scheduler
-        self._delayedCall = None
-        self._stopped = False
-        self._started = started
-
-
-    def coiterate(self, iterator, doneDeferred=None):
-        """
-        Add an iterator to the list of iterators I am currently running.
-
-        @return: a Deferred that will fire when the iterator finishes.
-        """
-        if doneDeferred is None:
-            doneDeferred = defer.Deferred()
-        if self._stopped:
-            doneDeferred.errback(SchedulerStopped())
-            return doneDeferred
-        self.iterators.append((iterator, doneDeferred))
-        self._reschedule()
-        return doneDeferred
-
-
-    def _tasks(self):
-        terminator = self._terminationPredicateFactory()
-        while self.iterators:
-            for i in self._metarator:
-                yield i
-                if terminator():
-                    return
-            self._metarator = iter(self.iterators)
-
-
-    def _tick(self):
-        """
-        Run one scheduler tick.
-        """
-        self._delayedCall = None
-        for taskObj in self._tasks():
-            iterator, doneDeferred = taskObj
-            try:
-                result = iterator.next()
-            except StopIteration:
-                self.iterators.remove(taskObj)
-                doneDeferred.callback(iterator)
-            except:
-                self.iterators.remove(taskObj)
-                doneDeferred.errback()
-            else:
-                if isinstance(result, defer.Deferred):
-                    self.iterators.remove(taskObj)
-                    def cbContinue(result, taskObj=taskObj):
-                        self.coiterate(*taskObj)
-                    result.addCallbacks(cbContinue, doneDeferred.errback)
-        self._reschedule()
-
-
-    _mustScheduleOnStart = False
-    def _reschedule(self):
-        if not self._started:
-            self._mustScheduleOnStart = True
-            return
-        if self._delayedCall is None and self.iterators:
-            self._delayedCall = self._scheduler(self._tick)
-
-
-    def start(self):
-        """
-        Begin scheduling steps.
-        """
-        self._stopped = False
-        self._started = True
-        if self._mustScheduleOnStart:
-            del self._mustScheduleOnStart
-            self._reschedule()
-
-
-    def stop(self):
-        """
-        Stop scheduling steps.  Errback the completion Deferreds of all
-        iterators which have been added and forget about them.
-        """
-        self._stopped = True
-        for iterator, doneDeferred in self.iterators:
-            doneDeferred.errback(SchedulerStopped())
-        self.iterators = []
-        if self._delayedCall is not None:
-            self._delayedCall.cancel()
-            self._delayedCall = None
-
-
-
-_theCooperator = Cooperator()
-def coiterate(iterator):
-    """
-    Cooperatively iterate over the given iterator, dividing runtime between it
-    and all other iterators which have been passed to this function and not yet
-    exhausted.
-    """
-    return _theCooperator.coiterate(iterator)
-
-
-
-__all__ = [
-    'LoopingCall',
-
-    'SchedulerStopped', 'Cooperator', 'coiterate',
-    ]