|; i HdZddlmZddlmZmZddlmZeZ GddZ y) aMulticast DNS Service Discovery for Python, v0.14-wmcbrine Copyright 2003 Paul Scott-Murphy, 2014 William McBrine This module provides a framework for the use of DNS Service Discovery using IP multicast. This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA ) annotations) DNSQuestion DNSRecord)_DUPLICATE_QUESTION_INTERVALc8eZdZdZddZd dZd dZd dZddZy) QuestionHistoryz%Remember questions and known answers.ci|_y)zInit a new QuestionHistory.N_historyselfs D/home/ubuntu/myenv/lib/python3.12/site-packages/zeroconf/_history.py__init__zQuestionHistory.__init__%s IK c&||f|j|<y)z'Remember a question with known answers.Nr )rquestionnow known_answerss radd_question_at_timez$QuestionHistory.add_question_at_time)s#& "6 hrcn|jj|}|sy|\}}||z tkDry||z S)a/Check to see if a question should be suppressed. https://datatracker.ietf.org/doc/html/rfc6762#section-7.3 When multiple queriers on the network are querying for the same resource records, there is no need for them to all be repeatedly asking the same question. F)r getr)rrrrprevious_questionthanprevious_known_answerss r suppresseszQuestionHistory.suppresses-sJ!MM--h7 '8$$ :4 4*M999rcg}|jjD](\}}|\}}||z tkDs|j|*|D]}|j|=y)z$Expire the history of old questions.N)r itemsrappend)rrremovesrnow_known_answersr_s r async_expirezQuestionHistory.async_expireAsh%'+/==+>+>+@ ) 'H''GD!Tz88x( )  (H h' (rc8|jjy)zClear the history.N)r clearr s rr%zQuestionHistory.clearKs rN)returnNone)rrr_floatrset[DNSRecord]r&r')rrrr(rr)r&bool)rr(r&r') __name__ __module__ __qualname____doc__rrrr#r%rrr r "s/L7:((rr N) r. __future__r_dnsrrconstrfloatr(r r/rrr4s&,#(/ ++r