Commit fff35678 authored by Pierre Imai's avatar Pierre Imai
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Store DNS server count in resolv_cache. 

Instead of keeping a sentinel after nameservers[], nsaddrinfo[] and
nstats[], store the server count in the structure, freeing up memory and
eliminating the need to enumerate the server count every time
_resolv_is_nameservers_equal_locked() is invoked.

Also increase MAXNS from 3 to 4.

BUG: 28153323
Change-Id: I11a7257af695157c9e32019cd00c67b535b63c75
parent bd26f23c
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