41 lines
1 KiB
ReStructuredText
41 lines
1 KiB
ReStructuredText
.. _example_setup_ctx:
|
|
|
|
==============================
|
|
Lookup from threads
|
|
==============================
|
|
|
|
This example shows how to use unbound module from a threaded program.
|
|
In this example, three lookup threads are created which work in background.
|
|
Each thread resolves different DNS record.
|
|
|
|
::
|
|
|
|
#!/usr/bin/python
|
|
from unbound import ub_ctx, RR_TYPE_A, RR_CLASS_IN
|
|
from threading import Thread
|
|
|
|
ctx = ub_ctx()
|
|
ctx.resolvconf("/etc/resolv.conf")
|
|
|
|
class LookupThread(Thread):
|
|
def __init__(self,ctx, name):
|
|
Thread.__init__(self)
|
|
self.ctx = ctx
|
|
self.name = name
|
|
|
|
def run(self):
|
|
print "Thread lookup started:",self.name
|
|
status, result = self.ctx.resolve(self.name, RR_TYPE_A, RR_CLASS_IN)
|
|
if status == 0 and result.havedata:
|
|
print " Result:",self.name,":", result.data.address_list
|
|
|
|
threads = []
|
|
for name in ["www.fit.vutbr.cz","www.vutbr.cz","www.google.com"]:
|
|
thread = LookupThread(ctx, name)
|
|
thread.start()
|
|
threads.append(thread)
|
|
|
|
for thread in threads:
|
|
thread.join()
|
|
|
|
|