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Re: Non-blocking socket operations

Cross-posted to 2 groups.

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On Mon, 26 Sep 2011 10:39:11 +0530, ittium wrote:

> getaddrinfo
> -----------
> 	getaddrinfo is executed in a thread result is returned in a call back 
> and then this thread exit.
> 
> Issue- When software is doing lot of DNS lookups, lots of such threads 
> will be needed. Is there a better way of doing it.

You could use the resolver functions directly, but it's non-trivial to get
it right (e.g. re-issuing requests using TCP if a UDP query results in a
truncated response), and it will only handle lookups via DNS, not
/etc/hosts, NIS, LDAP, etc.

On Linux, you can use getaddrinfo_a(), but it isn't portable. If your
program is GPL, you can use the GNU adns library.

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Non-blocking socket operations ittium <ittium@gmail.com> - 2011-09-26 10:39 +0530
  Re: Non-blocking socket operations Nobody <nobody@nowhere.com> - 2011-09-26 13:02 +0100
  Re: Non-blocking socket operations Rainer Weikusat <rweikusat@mssgmbh.com> - 2011-09-26 19:10 +0100
  Re: Non-blocking socket operations William Ahern <william@wilbur.25thandClement.com> - 2011-09-26 13:44 -0700

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