def __init__(self, maxevents):
self._maxevents = maxevents<EOL>self._submitted = {}<EOL>self._io_queue_release = libaio.io_queue_release<EOL>ctx = libaio.io_context_t()<EOL>libaio.io_queue_init(self._maxevents, byref(ctx))<EOL>self._ctx = ctx<EOL>
maxevents (int)
    Maximum number of events this context will have to handle.