[prev in list] [next in list] [prev in thread] [next in thread] 

List:       kde-core-devel
Subject:    Re: kdelibs 3.4beta2 make still broken for Openbsd
From:       Thiago Macieira <thiago.macieira () kdemail ! net>
Date:       2005-02-11 23:20:50
Message-ID: 200502112120.51580.thiago.macieira () kdemail ! net
[Download RAW message or body]


Michael Nottebrock wrote:
>> > While you are at it, can you perhaps adapt the configure checks to
>> > check for the existence of lwres/netdb.h and use that if detected?

No.

>> > The get*_r functions are hidden away in that header on FreeBSD. :-\

>Looks like it's liblwres which comes with BIND9, I guess supporting that
> in a generic way could be beneficial for more systems than just
> FreeBSD... looking at kdecore/configure.in.in though, I'm not sure if I
> can come up with anything you might like. Let me know if I should try
> anyway or if you need a guinea-pig for testing...

lwres isn't DNS. It requires a lwresd daemon running. BIND9's named can 
serve as lwresd as well, but I don't know any default installation that 
turns that on or lwresd.

lwresd is like nscd, but better implemented. However, lwres_* functions do 
not revert to DNS, if I remember correctly.

I don't think that adding yet another library, just for name-resolution, 
is a good idea. If people are using platforms without proper functions in 
the default libraries, they won't get the full functionality.

As for your other email on getaddrinfo being thread-safe, I replied in 
private. To summarise: yes, it is supposed to be thread-safe, and so is 
getnameinfo. However, the practice is different from theory.

If FreeBSD has properly thread-safe functions but doesn't have 
getservbyname_r & family, I'll need to add an exception to allow 
parallelised name-resolution. But the mutex will have to stay.

-- 
  Thiago Macieira  -  thiago (AT) macieira (DOT) info
    PGP/GPG: 0x6EF45358; fingerprint:
    E067 918B B660 DBD1 105C  966C 33F5 F005 6EF4 5358

1. On frumscafte, hwonne time_t wæs náht, se scieppend þone circolwyrde 
wundorcræftlíge cennede and seo eorðe wæs idel and hit wæs gód.

[Attachment #3 (application/pgp-signature)]

[prev in list] [next in list] [prev in thread] [next in thread]