import random, weakref from zope.interface import implements from twisted.python import log, components from twisted.spread import pb from twisted.internet import reactor, defer from buildbot import interfaces from buildbot.status.progress import Expectations from buildbot.util import now from buildbot.process import base (ATTACHING, # slave attached, still checking hostinfo/etc IDLE, # idle, available for use PINGING, # build about to start, making sure it is still alive BUILDING, # build is running LATENT, # latent slave is not substantiated; similar to idle ) = range(5) class AbstractSlaveBuilder(pb.Referenceable): """I am the master-side representative for one of the L{buildbot.slave.bot.SlaveBuilder} objects that lives in a remote buildbot. When a remote builder connects, I query it for command versions and then make it available to any Builds that are ready to run. """ def __init__(self): self.ping_watchers = [] self.state = None # set in subclass self.remote = None self.slave = None self.builder_name = None def __repr__(self): r = ["<", self.__class__.__name__] if self.builder_name: r.extend([" builder=", self.builder_name]) if self.slave: r.extend([" slave=", self.slave.slavename]) r.append(">") return ''.join(r) def setBuilder(self, b): self.builder = b self.builder_name = b.name def getSlaveCommandVersion(self, command, oldversion=None): if self.remoteCommands is None: # the slave is 0.5.0 or earlier return oldversion return self.remoteCommands.get(command) def isAvailable(self): # if this SlaveBuilder is busy, then it's definitely not available if self.isBusy(): return False # otherwise, check in with the BuildSlave if self.slave: return self.slave.canStartBuild() # no slave? not very available. return False def isBusy(self): return self.state not in (IDLE, LATENT) def buildStarted(self): self.state = BUILDING def buildFinished(self): self.state = IDLE reactor.callLater(0, self.builder.botmaster.maybeStartAllBuilds) def attached(self, slave, remote, commands): """ @type slave: L{buildbot.buildslave.BuildSlave} @param slave: the BuildSlave that represents the buildslave as a whole @type remote: L{twisted.spread.pb.RemoteReference} @param remote: a reference to the L{buildbot.slave.bot.SlaveBuilder} @type commands: dict: string -> string, or None @param commands: provides the slave's version of each RemoteCommand """ self.state = ATTACHING self.remote = remote self.remoteCommands = commands # maps command name to version if self.slave is None: self.slave = slave self.slave.addSlaveBuilder(self) else: assert self.slave == slave log.msg("Buildslave %s attached to %s" % (slave.slavename, self.builder_name)) d = self.remote.callRemote("setMaster", self) d.addErrback(self._attachFailure, "Builder.setMaster") d.addCallback(self._attached2) return d def _attached2(self, res): d = self.remote.callRemote("print", "attached") d.addErrback(self._attachFailure, "Builder.print 'attached'") d.addCallback(self._attached3) return d def _attached3(self, res): # now we say they're really attached self.state = IDLE return self def _attachFailure(self, why, where): assert isinstance(where, str) log.msg(where) log.err(why) return why def ping(self, timeout, status=None): """Ping the slave to make sure it is still there. Returns a Deferred that fires with True if it is. @param status: if you point this at a BuilderStatus, a 'pinging' event will be pushed. """ oldstate = self.state self.state = PINGING newping = not self.ping_watchers d = defer.Deferred() self.ping_watchers.append(d) if newping: if status: event = status.addEvent(["pinging"]) d2 = defer.Deferred() d2.addCallback(self._pong_status, event) self.ping_watchers.insert(0, d2) # I think it will make the tests run smoother if the status # is updated before the ping completes Ping().ping(self.remote, timeout).addCallback(self._pong) def reset_state(res): if self.state == PINGING: self.state = oldstate return res d.addCallback(reset_state) return d def _pong(self, res): watchers, self.ping_watchers = self.ping_watchers, [] for d in watchers: d.callback(res) def _pong_status(self, res, event): if res: event.text = ["ping", "success"] else: event.text = ["ping", "failed"] event.finish() def detached(self): log.msg("Buildslave %s detached from %s" % (self.slave.slavename, self.builder_name)) if self.slave: self.slave.removeSlaveBuilder(self) self.slave = None self.remote = None self.remoteCommands = None class Ping: running = False timer = None def ping(self, remote, timeout): assert not self.running self.running = True log.msg("sending ping") self.d = defer.Deferred() # TODO: add a distinct 'ping' command on the slave.. using 'print' # for this purpose is kind of silly. remote.callRemote("print", "ping").addCallbacks(self._pong, self._ping_failed, errbackArgs=(remote,)) # We use either our own timeout or the (long) TCP timeout to detect # silently-missing slaves. This might happen because of a NAT # timeout or a routing loop. If the slave just shuts down (and we # somehow missed the FIN), we should get a "connection refused" # message. self.timer = reactor.callLater(timeout, self._ping_timeout, remote) return self.d def _ping_timeout(self, remote): log.msg("ping timeout") # force the BuildSlave to disconnect, since this indicates that # the bot is unreachable. del self.timer remote.broker.transport.loseConnection() # the forcibly-lost connection will now cause the ping to fail def _stopTimer(self): if not self.running: return self.running = False if self.timer: self.timer.cancel() del self.timer def _pong(self, res): log.msg("ping finished: success") self._stopTimer() self.d.callback(True) def _ping_failed(self, res, remote): log.msg("ping finished: failure") self._stopTimer() # the slave has some sort of internal error, disconnect them. If we # don't, we'll requeue a build and ping them again right away, # creating a nasty loop. remote.broker.transport.loseConnection() # TODO: except, if they actually did manage to get this far, they'll # probably reconnect right away, and we'll do this game again. Maybe # it would be better to leave them in the PINGING state. self.d.callback(False) class SlaveBuilder(AbstractSlaveBuilder): def __init__(self): AbstractSlaveBuilder.__init__(self) self.state = ATTACHING def detached(self): AbstractSlaveBuilder.detached(self) if self.slave: self.slave.removeSlaveBuilder(self) self.slave = None self.state = ATTACHING def buildFinished(self): # Call the slave's buildFinished if we can; the slave may be waiting # to do a graceful shutdown and needs to know when it's idle. # After, we check to see if we can start other builds. self.state = IDLE if self.slave: d = self.slave.buildFinished(self) d.addCallback(lambda x: reactor.callLater(0, self.builder.botmaster.maybeStartAllBuilds)) else: reactor.callLater(0, self.builder.botmaster.maybeStartAllBuilds) class LatentSlaveBuilder(AbstractSlaveBuilder): def __init__(self, slave, builder): AbstractSlaveBuilder.__init__(self) self.slave = slave self.state = LATENT self.setBuilder(builder) self.slave.addSlaveBuilder(self) log.msg("Latent buildslave %s attached to %s" % (slave.slavename, self.builder_name)) def substantiate(self, build): d = self.slave.substantiate(self) if not self.slave.substantiated: event = self.builder.builder_status.addEvent( ["substantiating"]) def substantiated(res): msg = ["substantiate", "success"] if isinstance(res, basestring): msg.append(res) elif isinstance(res, (tuple, list)): msg.extend(res) event.text = msg event.finish() return res def substantiation_failed(res): event.text = ["substantiate", "failed"] # TODO add log of traceback to event event.finish() return res d.addCallbacks(substantiated, substantiation_failed) return d def detached(self): AbstractSlaveBuilder.detached(self) self.state = LATENT def buildStarted(self): AbstractSlaveBuilder.buildStarted(self) self.slave.buildStarted(self) def buildFinished(self): AbstractSlaveBuilder.buildFinished(self) self.slave.buildFinished(self) def _attachFailure(self, why, where): self.state = LATENT return AbstractSlaveBuilder._attachFailure(self, why, where) def ping(self, timeout, status=None): if not self.slave.substantiated: if status: status.addEvent(["ping", "latent"]).finish() return defer.succeed(True) return AbstractSlaveBuilder.ping(self, timeout, status) class Builder(pb.Referenceable): """I manage all Builds of a given type. Each Builder is created by an entry in the config file (the c['builders'] list), with a number of parameters. One of these parameters is the L{buildbot.process.factory.BuildFactory} object that is associated with this Builder. The factory is responsible for creating new L{Build} objects. Each Build object defines when and how the build is performed, so a new Factory or Builder should be defined to control this behavior. The Builder holds on to a number of L{base.BuildRequest} objects in a list named C{.buildable}. Incoming BuildRequest objects will be added to this list, or (if possible) merged into an existing request. When a slave becomes available, I will use my C{BuildFactory} to turn the request into a new C{Build} object. The C{BuildRequest} is forgotten, the C{Build} goes into C{.building} while it runs. Once the build finishes, I will discard it. I maintain a list of available SlaveBuilders, one for each connected slave that the C{slavenames} parameter says we can use. Some of these will be idle, some of them will be busy running builds for me. If there are multiple slaves, I can run multiple builds at once. I also manage forced builds, progress expectation (ETA) management, and some status delivery chores. I am persisted in C{BASEDIR/BUILDERNAME/builder}, so I can remember how long a build usually takes to run (in my C{expectations} attribute). This pickle also includes the L{buildbot.status.builder.BuilderStatus} object, which remembers the set of historic builds. @type buildable: list of L{buildbot.process.base.BuildRequest} @ivar buildable: BuildRequests that are ready to build, but which are waiting for a buildslave to be available. @type building: list of L{buildbot.process.base.Build} @ivar building: Builds that are actively running @type slaves: list of L{buildbot.buildslave.BuildSlave} objects @ivar slaves: the slaves currently available for building """ expectations = None # this is created the first time we get a good build START_BUILD_TIMEOUT = 10 CHOOSE_SLAVES_RANDOMLY = True # disabled for determinism during tests def __init__(self, setup, builder_status): """ @type setup: dict @param setup: builder setup data, as stored in BuildmasterConfig['builders']. Contains name, slavename(s), builddir, factory, locks. @type builder_status: L{buildbot.status.builder.BuilderStatus} """ self.name = setup['name'] self.slavenames = [] if setup.has_key('slavename'): self.slavenames.append(setup['slavename']) if setup.has_key('slavenames'): self.slavenames.extend(setup['slavenames']) self.builddir = setup['builddir'] self.buildFactory = setup['factory'] self.locks = setup.get("locks", []) self.env = setup.get('env', {}) assert isinstance(self.env, dict) if setup.has_key('periodicBuildTime'): raise ValueError("periodicBuildTime can no longer be defined as" " part of the Builder: use scheduler.Periodic" " instead") # build/wannabuild slots: Build objects move along this sequence self.buildable = [] self.building = [] # old_building holds active builds that were stolen from a predecessor self.old_building = weakref.WeakKeyDictionary() # buildslaves which have connected but which are not yet available. # These are always in the ATTACHING state. self.attaching_slaves = [] # buildslaves at our disposal. Each SlaveBuilder instance has a # .state that is IDLE, PINGING, or BUILDING. "PINGING" is used when a # Build is about to start, to make sure that they're still alive. self.slaves = [] self.builder_status = builder_status self.builder_status.setSlavenames(self.slavenames) # for testing, to help synchronize tests self.watchers = {'attach': [], 'detach': [], 'detach_all': [], 'idle': []} def setBotmaster(self, botmaster): self.botmaster = botmaster def compareToSetup(self, setup): diffs = [] setup_slavenames = [] if setup.has_key('slavename'): setup_slavenames.append(setup['slavename']) setup_slavenames.extend(setup.get('slavenames', [])) if setup_slavenames != self.slavenames: diffs.append('slavenames changed from %s to %s' \ % (self.slavenames, setup_slavenames)) if setup['builddir'] != self.builddir: diffs.append('builddir changed from %s to %s' \ % (self.builddir, setup['builddir'])) if setup['factory'] != self.buildFactory: # compare objects diffs.append('factory changed') oldlocks = [(lock.__class__, lock.name) for lock in self.locks] newlocks = [(lock.__class__, lock.name) for lock in setup.get('locks',[])] if oldlocks != newlocks: diffs.append('locks changed from %s to %s' % (oldlocks, newlocks)) return diffs def __repr__(self): return "" % (self.name, id(self)) def getOldestRequestTime(self): """Returns the timestamp of the oldest build request for this builder. If there are no build requests, None is returned.""" if self.buildable: return self.buildable[0].getSubmitTime() else: return None def submitBuildRequest(self, req): req.setSubmitTime(now()) self.buildable.append(req) req.requestSubmitted(self) self.builder_status.addBuildRequest(req.status) self.maybeStartBuild() def cancelBuildRequest(self, req): if req in self.buildable: self.buildable.remove(req) self.builder_status.removeBuildRequest(req.status) return True return False def __getstate__(self): d = self.__dict__.copy() # TODO: note that d['buildable'] can contain Deferreds del d['building'] # TODO: move these back to .buildable? del d['slaves'] return d def __setstate__(self, d): self.__dict__ = d self.building = [] self.slaves = [] def consumeTheSoulOfYourPredecessor(self, old): """Suck the brain out of an old Builder. This takes all the runtime state from an existing Builder and moves it into ourselves. This is used when a Builder is changed in the master.cfg file: the new Builder has a different factory, but we want all the builds that were queued for the old one to get processed by the new one. Any builds which are already running will keep running. The new Builder will get as many of the old SlaveBuilder objects as it wants.""" log.msg("consumeTheSoulOfYourPredecessor: %s feeding upon %s" % (self, old)) # we claim all the pending builds, removing them from the old # Builder's queue. This insures that the old Builder will not start # any new work. log.msg(" stealing %s buildrequests" % len(old.buildable)) self.buildable.extend(old.buildable) old.buildable = [] # old.building (i.e. builds which are still running) is not migrated # directly: it keeps track of builds which were in progress in the # old Builder. When those builds finish, the old Builder will be # notified, not us. However, since the old SlaveBuilder will point to # us, it is our maybeStartBuild() that will be triggered. if old.building: self.builder_status.setBigState("building") # however, we do grab a weakref to the active builds, so that our # BuilderControl can see them and stop them. We use a weakref because # we aren't the one to get notified, so there isn't a convenient # place to remove it from self.building . for b in old.building: self.old_building[b] = None for b in old.old_building: self.old_building[b] = None # Our set of slavenames may be different. Steal any of the old # buildslaves that we want to keep using. for sb in old.slaves[:]: if sb.slave.slavename in self.slavenames: log.msg(" stealing buildslave %s" % sb) self.slaves.append(sb) old.slaves.remove(sb) sb.setBuilder(self) # old.attaching_slaves: # these SlaveBuilders are waiting on a sequence of calls: # remote.setMaster and remote.print . When these two complete, # old._attached will be fired, which will add a 'connect' event to # the builder_status and try to start a build. However, we've pulled # everything out of the old builder's queue, so it will have no work # to do. The outstanding remote.setMaster/print call will be holding # the last reference to the old builder, so it will disappear just # after that response comes back. # # The BotMaster will ask the slave to re-set their list of Builders # shortly after this function returns, which will cause our # attached() method to be fired with a bunch of references to remote # SlaveBuilders, some of which we already have (by stealing them # from the old Builder), some of which will be new. The new ones # will be re-attached. # Therefore, we don't need to do anything about old.attaching_slaves return # all done def getBuild(self, number): for b in self.building: if b.build_status.number == number: return b for b in self.old_building.keys(): if b.build_status.number == number: return b return None def fireTestEvent(self, name, fire_with=None): if fire_with is None: fire_with = self watchers = self.watchers[name] self.watchers[name] = [] for w in watchers: reactor.callLater(0, w.callback, fire_with) def addLatentSlave(self, slave): assert interfaces.ILatentBuildSlave.providedBy(slave) for s in self.slaves: if s == slave: break else: sb = LatentSlaveBuilder(slave, self) self.builder_status.addPointEvent( ['added', 'latent', slave.slavename]) self.slaves.append(sb) reactor.callLater(0, self.maybeStartBuild) def attached(self, slave, remote, commands): """This is invoked by the BuildSlave when the self.slavename bot registers their builder. @type slave: L{buildbot.buildslave.BuildSlave} @param slave: the BuildSlave that represents the buildslave as a whole @type remote: L{twisted.spread.pb.RemoteReference} @param remote: a reference to the L{buildbot.slave.bot.SlaveBuilder} @type commands: dict: string -> string, or None @param commands: provides the slave's version of each RemoteCommand @rtype: L{twisted.internet.defer.Deferred} @return: a Deferred that fires (with 'self') when the slave-side builder is fully attached and ready to accept commands. """ for s in self.attaching_slaves + self.slaves: if s.slave == slave: # already attached to them. This is fairly common, since # attached() gets called each time we receive the builder # list from the slave, and we ask for it each time we add or # remove a builder. So if the slave is hosting builders # A,B,C, and the config file changes A, we'll remove A and # re-add it, triggering two builder-list requests, getting # two redundant calls to attached() for B, and another two # for C. # # Therefore, when we see that we're already attached, we can # just ignore it. TODO: build a diagram of the state # transitions here, I'm concerned about sb.attached() failing # and leaving sb.state stuck at 'ATTACHING', and about # the detached() message arriving while there's some # transition pending such that the response to the transition # re-vivifies sb return defer.succeed(self) sb = SlaveBuilder() sb.setBuilder(self) self.attaching_slaves.append(sb) d = sb.attached(slave, remote, commands) d.addCallback(self._attached) d.addErrback(self._not_attached, slave) return d def _attached(self, sb): # TODO: make this .addSlaveEvent(slave.slavename, ['connect']) ? self.builder_status.addPointEvent(['connect', sb.slave.slavename]) self.attaching_slaves.remove(sb) self.slaves.append(sb) reactor.callLater(0, self.maybeStartBuild) self.fireTestEvent('attach') return self def _not_attached(self, why, slave): # already log.err'ed by SlaveBuilder._attachFailure # TODO: make this .addSlaveEvent? # TODO: remove from self.slaves (except that detached() should get # run first, right?) self.builder_status.addPointEvent(['failed', 'connect', slave.slave.slavename]) # TODO: add an HTMLLogFile of the exception self.fireTestEvent('attach', why) def detached(self, slave): """This is called when the connection to the bot is lost.""" log.msg("%s.detached" % self, slave.slavename) for sb in self.attaching_slaves + self.slaves: if sb.slave == slave: break else: log.msg("WEIRD: Builder.detached(%s) (%s)" " not in attaching_slaves(%s)" " or slaves(%s)" % (slave, slave.slavename, self.attaching_slaves, self.slaves)) return if sb.state == BUILDING: # the Build's .lostRemote method (invoked by a notifyOnDisconnect # handler) will cause the Build to be stopped, probably right # after the notifyOnDisconnect that invoked us finishes running. # TODO: should failover to a new Build #self.retryBuild(sb.build) pass if sb in self.attaching_slaves: self.attaching_slaves.remove(sb) if sb in self.slaves: self.slaves.remove(sb) # TODO: make this .addSlaveEvent? self.builder_status.addPointEvent(['disconnect', slave.slavename]) sb.detached() # inform the SlaveBuilder that their slave went away self.updateBigStatus() self.fireTestEvent('detach') if not self.slaves: self.fireTestEvent('detach_all') def updateBigStatus(self): if not self.slaves: self.builder_status.setBigState("offline") elif self.building: self.builder_status.setBigState("building") else: self.builder_status.setBigState("idle") self.fireTestEvent('idle') def maybeStartBuild(self): log.msg("maybeStartBuild %s: %s %s" % (self, self.buildable, self.slaves)) if not self.buildable: self.updateBigStatus() return # nothing to do # pick an idle slave available_slaves = [sb for sb in self.slaves if sb.isAvailable()] if not available_slaves: log.msg("%s: want to start build, but we don't have a remote" % self) self.updateBigStatus() return if self.CHOOSE_SLAVES_RANDOMLY: # TODO prefer idle over latent? maybe other sorting preferences? sb = random.choice(available_slaves) else: sb = available_slaves[0] # there is something to build, and there is a slave on which to build # it. Grab the oldest request, see if we can merge it with anything # else. req = self.buildable.pop(0) self.builder_status.removeBuildRequest(req.status) mergers = [] botmaster = self.botmaster for br in self.buildable[:]: if botmaster.shouldMergeRequests(self, req, br): self.buildable.remove(br) self.builder_status.removeBuildRequest(br.status) mergers.append(br) requests = [req] + mergers # Create a new build from our build factory and set ourself as the # builder. build = self.buildFactory.newBuild(requests) build.setBuilder(self) build.setLocks(self.locks) if len(self.env) > 0: build.setSlaveEnvironment(self.env) # start it self.startBuild(build, sb) def startBuild(self, build, sb): """Start a build on the given slave. @param build: the L{base.Build} to start @param sb: the L{SlaveBuilder} which will host this build @return: a Deferred which fires with a L{buildbot.interfaces.IBuildControl} that can be used to stop the Build, or to access a L{buildbot.interfaces.IBuildStatus} which will watch the Build as it runs. """ self.building.append(build) self.updateBigStatus() if isinstance(sb, LatentSlaveBuilder): log.msg("starting build %s.. substantiating the slave %s" % (build, sb)) d = sb.substantiate(build) def substantiated(res): return sb.ping(self.START_BUILD_TIMEOUT) def substantiation_failed(res): self.builder_status.addPointEvent( ['removing', 'latent', sb.slave.slavename]) sb.slave.disconnect() # TODO: should failover to a new Build #self.retryBuild(sb.build) d.addCallbacks(substantiated, substantiation_failed) else: log.msg("starting build %s.. pinging the slave %s" % (build, sb)) d = sb.ping(self.START_BUILD_TIMEOUT) # ping the slave to make sure they're still there. If they're fallen # off the map (due to a NAT timeout or something), this will fail in # a couple of minutes, depending upon the TCP timeout. TODO: consider # making this time out faster, or at least characterize the likely # duration. d.addCallback(self._startBuild_1, build, sb) return d def _startBuild_1(self, res, build, sb): if not res: return self._startBuildFailed("slave ping failed", build, sb) # The buildslave is ready to go. sb.buildStarted() sets its state to # BUILDING (so we won't try to use it for any other builds). This # gets set back to IDLE by the Build itself when it finishes. sb.buildStarted() d = sb.remote.callRemote("startBuild") d.addCallbacks(self._startBuild_2, self._startBuildFailed, callbackArgs=(build,sb), errbackArgs=(build,sb)) return d def _startBuild_2(self, res, build, sb): # create the BuildStatus object that goes with the Build bs = self.builder_status.newBuild() # start the build. This will first set up the steps, then tell the # BuildStatus that it has started, which will announce it to the # world (through our BuilderStatus object, which is its parent). # Finally it will start the actual build process. d = build.startBuild(bs, self.expectations, sb) d.addCallback(self.buildFinished, sb) d.addErrback(log.err) # this shouldn't happen. if it does, the slave # will be wedged for req in build.requests: req.buildStarted(build, bs) return build # this is the IBuildControl def _startBuildFailed(self, why, build, sb): # put the build back on the buildable list log.msg("I tried to tell the slave that the build %s started, but " "remote_startBuild failed: %s" % (build, why)) # release the slave. This will queue a call to maybeStartBuild, which # will fire after other notifyOnDisconnect handlers have marked the # slave as disconnected (so we don't try to use it again). sb.buildFinished() log.msg("re-queueing the BuildRequest") self.building.remove(build) for req in build.requests: self.buildable.insert(0, req) # the interrupted build gets first # priority self.builder_status.addBuildRequest(req.status) def buildFinished(self, build, sb): """This is called when the Build has finished (either success or failure). Any exceptions during the build are reported with results=FAILURE, not with an errback.""" # by the time we get here, the Build has already released the slave # (which queues a call to maybeStartBuild) self.building.remove(build) for req in build.requests: req.finished(build.build_status) def setExpectations(self, progress): """Mark the build as successful and update expectations for the next build. Only call this when the build did not fail in any way that would invalidate the time expectations generated by it. (if the compile failed and thus terminated early, we can't use the last build to predict how long the next one will take). """ if self.expectations: self.expectations.update(progress) else: # the first time we get a good build, create our Expectations # based upon its results self.expectations = Expectations(progress) log.msg("new expectations: %s seconds" % \ self.expectations.expectedBuildTime()) def shutdownSlave(self): if self.remote: self.remote.callRemote("shutdown") class BuilderControl(components.Adapter): implements(interfaces.IBuilderControl) def requestBuild(self, req): """Submit a BuildRequest to this Builder.""" self.original.submitBuildRequest(req) def requestBuildSoon(self, req): """Submit a BuildRequest like requestBuild, but raise a L{buildbot.interfaces.NoSlaveError} if no slaves are currently available, so it cannot be used to queue a BuildRequest in the hopes that a slave will eventually connect. This method is appropriate for use by things like the web-page 'Force Build' button.""" if not self.original.slaves: raise interfaces.NoSlaveError self.requestBuild(req) def resubmitBuild(self, bs, reason=""): if not bs.isFinished(): return ss = bs.getSourceStamp(absolute=True) req = base.BuildRequest(reason, ss, self.original.name) self.requestBuild(req) def getPendingBuilds(self): # return IBuildRequestControl objects raise NotImplementedError def getBuild(self, number): return self.original.getBuild(number) def ping(self, timeout=30): if not self.original.slaves: self.original.builder_status.addPointEvent(["ping", "no slave"]) return defer.succeed(False) # interfaces.NoSlaveError dl = [] for s in self.original.slaves: dl.append(s.ping(timeout, self.original.builder_status)) d = defer.DeferredList(dl) d.addCallback(self._gatherPingResults) return d def _gatherPingResults(self, res): for ignored,success in res: if not success: return False return True components.registerAdapter(BuilderControl, Builder, interfaces.IBuilderControl)