4812f02dd0
bypassing the cache response stage and uniquifying mesh states. Four EDNS option lists were added to module_qstate (module_qstate.edns_opts_*) to store EDNS options from/to front/back side. - Added two flags to module_qstate (no_cache_lookup, no_cache_store) that control the modules' cache interactions. - Added code for registering inplace callback functions. The registered functions can be called just before replying with local data or Chaos, replying from cache, replying with SERVFAIL, replying with a resolved query, sending a query to a nameserver. The functions can inspect the available data and maybe change response/query related data (i.e. append EDNS options). - Updated Python module for the above. - Updated Python documentation. git-svn-id: https://unbound.nlnetlabs.nl/svn/trunk@3947 be551aaa-1e26-0410-a405-d3ace91eadb9
42 lines
1.1 KiB
ReStructuredText
42 lines
1.1 KiB
ReStructuredText
.. _example_setup_ctx:
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Lookup from threads
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===================
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This example shows how to use unbound module from a threaded program.
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In this example, three lookup threads are created which work in background.
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Each thread resolves different DNS record.
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Source code
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-----------
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::
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#!/usr/bin/python
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from unbound import ub_ctx, RR_TYPE_A, RR_CLASS_IN
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from threading import Thread
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ctx = ub_ctx()
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ctx.resolvconf("/etc/resolv.conf")
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class LookupThread(Thread):
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def __init__(self,ctx, name):
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Thread.__init__(self)
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self.ctx = ctx
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self.name = name
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def run(self):
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print "Thread lookup started:",self.name
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status, result = self.ctx.resolve(self.name, RR_TYPE_A, RR_CLASS_IN)
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if status == 0 and result.havedata:
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print " Result:",self.name,":", result.data.address_list
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threads = []
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for name in ["www.fit.vutbr.cz","www.vutbr.cz","www.google.com"]:
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thread = LookupThread(ctx, name)
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thread.start()
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threads.append(thread)
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for thread in threads:
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thread.join()
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