service.py 文件源码

def setMetadata(self, meta):
        self.meta = meta
        sets = []
        for p in self.users.itervalues():
            d = defer.maybeDeferred(p.groupMetaUpdate, self, meta)
            d.addErrback(self._ebUserCall, p=p)
            sets.append(d)
        defer.DeferredList(sets).addCallback(self._cbUserCall)
        return defer.succeed(None)