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Hi All,</div>
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We have a use case where we use PDNS with 8 backend threads. We needed to save thread specific data in an mmap. However, I came across the following in PDNS documentation - </div>
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<span style="font-family: 'luxi sans', sans-serif; font-size: medium; text-align: -webkit-left; "><i>PowerDNS may instantiate multiple instances of your backend, or destroy existing copies and instantiate new ones. Backend code should therefore be thread-safe
with respect to its static data. Additionally, it is wise if instantiation is a fast operation, with the possible exception of the first construction.</i></span></div>
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<div><font face="Helvetica">The questions I had are - </font></div>
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<li><font face="Helvetica">What is the lifetime of a backend thread?</font></li><li><font face="Helvetica">How often does a thread get destroyed and a new thread get created?</font></li><li><font face="Helvetica">Is there any interface available to do a cleanup before the thread ends?</font></li></ol>
<div><font face="Helvetica">Thanks,</font></div>
<div><font face="Helvetica">Seema</font></div>
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