+
+class handler(object):
+ def handle(self, request):
+ raise Exception()
+ def ckflush(self, req):
+ raise Exception()
+ def close(self):
+ pass
+
+ @classmethod
+ def parseargs(cls, **args):
+ if len(args) > 0:
+ raise ValueError("unknown handler argument: " + next(iter(args)))
+ return {}
+
+class freethread(handler):
+ def __init__(self, *, max=None, timeout=None, **kw):
+ super().__init__(**kw)
+ self.current = set()
+ self.lk = threading.Lock()
+ self.tcond = threading.Condition(self.lk)
+ self.max = max
+ self.timeout = timeout
+
+ @classmethod
+ def parseargs(cls, *, max=None, abort=None, **args):
+ ret = super().parseargs(**args)
+ if max:
+ ret["max"] = int(max)
+ if abort:
+ ret["timeout"] = int(abort)
+ return ret
+
+ def handle(self, req):
+ with self.lk:
+ if self.max is not None:
+ if self.timeout is not None:
+ now = start = time.time()
+ while len(self.current) >= self.max:
+ self.tcond.wait(start + self.timeout - now)
+ now = time.time()
+ if now - start > self.timeout:
+ os.abort()
+ else:
+ while len(self.current) >= self.max:
+ self.tcond.wait()
+ th = reqthread(target=self.run, args=[req])
+ th.start()
+ while th.is_alive() and th not in self.current:
+ self.tcond.wait()
+
+ def ckflush(self, req):
+ while len(req.buffer) > 0:
+ rls, wls, els = select.select([], [req], [req])
+ req.flush()
+
+ def run(self, req):