DNS cache support, REF 14614

https://project.iopsys.eu/issues/14614
- Applied https://github.com/BT-OpenSource/indigo-gpl/blob/main/sh3a/asterisk/patches/027-dns-cache-support.patch
- Implemented corresponding handler functions required by DNS cache API 

assigned to @Yalu

requested review from @iryna.antsyferova

requested review from @gyang and removed review request for @iryna.antsyferova

marked this merge request as draft

added 1 commit

• ff5778ef - Implement dns cache handlers

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added 2 commits

• 9556ab31 - Implmenet dns cache support
• ee565da9 - Implement dns cache handlers

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Optimized the code in order to use cache_entry->expiration_time ( == time() + ttl) instead of using two variables - ttl and entry_time

Great!

marked this merge request as ready

resolved all threads

merged

changed title from DNS cache support to DNS cache support, REF 14614