[Unbound-users] preferred library ?

[W.C.A. Wijngaards]

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Alexander Kolesnikoff wrote:
|   Excellent! I'm just curious, how unbound use kqueue(2) ? On my
FreeBSD box
| top(1) said:
|
|   PID USERNAME    THR PRI NICE   SIZE    RES STATE    TIME   WCPU COMMAND
|  6158 bind          1  96    0  7852K  3744K select   0:00  0.00% unbound
|
|  Why STATE is "select" but not "kqueue" ? unbound was compiled with
libev-3.2.

Hi Alexander,

Scan through libev-3.2 shows this:
#ifndef __NetBSD__
~  /* kqueue is borked on everything but netbsd apparently */
~  /* it usually doesn't work correctly on anything but sockets and pipes */
~  flags &= ~EVBACKEND_KQUEUE;
#endif

So that is why it is not using kqueue on FreeBSD. Seems like
libevent-1.4.3-stable does do kqueue on FreeBSD (from a cursory source
look).

Now, unbound only uses sockets and pipes, so you could edit out this bit
in your source (for unbound only) if you really want kqueue and libev.

If you find bugs or fixes for FreeBSD, let those two projects know.
(This is a nice of saying, that unbound uses libev, libevent precisely
to avoid this kind of portability trouble).

Best regards,
~   Wouter
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