Re: [gtk-osx-users] Slow gdk_display_get_name() on macOS Sierra

[John Ralls <jralls ceridwen us>]

> On Feb 15, 2017, at 1:33 PM, Jiří Techet <techet gmail com> wrote:
>
> Hi,
>
> after switching to macOS Sierra I (and another user) noticed that Geany whose OS X port I maintain starts 
> significantly slower:
>
> https://github.com/geany/geany/issues/1277
>
> After some debugging it turns out it's the gdk_display_get_name() call which takes several seconds to 
> complete. This function just returns [NSHost currentHost]; according to Apple documentation
>
> https://developer.apple.com/reference/foundation/nshost/1408946-currenthost
>
> the function can block for several seconds, depending on user's configuration. I found some more mentions 
> of this behaviour, e.g.
>
> http://secure.macscripter.net/viewtopic.php?id=45309
>
> Interestingly, simple unix gethostname() as used in Apple's implementation of the hostname command
>
> https://opensource.apple.com/source/shell_cmds/shell_cmds-81.1/hostname/hostname.c
>
> returns immediately (at least for me). Would it be OK to use gethostname() in gdk_display_get_name()? Is 
> there some specific reason why [NSHost currentHost] is used?

Not that I know about. I suggest you file a bug against gtk+/Backend:Quartz and see if any of the gtk devs 
have any thoughts on the matter.

Regards,
John Ralls