Change Notification functions in Darwin?

[Dylan]

Hi,

I'm pretty new to the Mac, having a Windows and to some extent BSD
background. I'm still making my way round the documentation. Apologies if
I'm asking an obvious question, but I can't find the answer.

I need to use change notification functionality, e.g. a mechanism to notify
an application when a change in a directory or file occurs. Windows has the
ChangeNotification and CompletionPort functionality. The BSDs
(Free/Net/Open) have kevent and kqueue. I can't find anything under Darwin,
but I'm convinced it's got to be there somewhere.

I'd prefer to keep to the BSD/Mach layers if possible, because they're not
so unfamilar to me. The rest of the application is pure Darwin, so that
would keep things consistent. However, I'd happily consider using Carbon,
or whatever, to make the application work, but I don't know Carbon from a
fish, and I've got this horrible deadline.

Can anyone point me in the right direction?

Thanks

Dylan Harris


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[James Weatherley]

In article <7Dxcb.52$aW.57488@newsfep2-gui.server.ntli.net>, e100
[email]_per_email_here@ntlworld.com[/email] says...

> Hi,
>
> I'm pretty new to the Mac, having a Windows and to some extent BSD
> background. I'm still making my way round the documentation. Apologies if
> I'm asking an obvious question, but I can't find the answer.
>
> I need to use change notification functionality, e.g. a mechanism to notify
> an application when a change in a directory or file occurs. Windows has the
> ChangeNotification and CompletionPort functionality. The BSDs
> (Free/Net/Open) have kevent and kqueue. I can't find anything under Darwin,
> but I'm convinced it's got to be there somewhere.
>
> I'd prefer to keep to the BSD/Mach layers if possible, because they're not
> so unfamilar to me. The rest of the application is pure Darwin, so that
> would keep things consistent. However, I'd happily consider using Carbon,
> or whatever, to make the application work, but I don't know Carbon from a
> fish, and I've got this horrible deadline.
>
> Can anyone point me in the right direction?
>
> Thanks
>
> Dylan Harris
>

Panther will have kevent and kqueue
<http://www.apple.com/server/macosx/pantherserver.html>

[Eric VERGNAUD]

dans l'article 7Dxcb.52$aW.57488@newsfep2-gui.server.ntli.net, Dylan à
[email]e100_per_email_here@ntlworld.com[/email] a écrit le 25/09/03 9:47*:

> Hi,
>
> I'm pretty new to the Mac, having a Windows and to some extent BSD
> background. I'm still making my way round the documentation. Apologies if
> I'm asking an obvious question, but I can't find the answer.
>
> I need to use change notification functionality, e.g. a mechanism to notify
> an application when a change in a directory or file occurs. Windows has the
> ChangeNotification and CompletionPort functionality. The BSDs
> (Free/Net/Open) have kevent and kqueue. I can't find anything under Darwin,
> but I'm convinced it's got to be there somewhere.
>
> I'd prefer to keep to the BSD/Mach layers if possible, because they're not
> so unfamilar to me. The rest of the application is pure Darwin, so that
> would keep things consistent. However, I'd happily consider using Carbon,
> or whatever, to make the application work, but I don't know Carbon from a
> fish, and I've got this horrible deadline.
>
> Can anyone point me in the right direction?
>
> Thanks
>
> Dylan Harris
>

Have a look at the following:

[url]http://developer.apple.com/samplecode/Sample_Code/Interapplication_Comm/Fold[/url]
er_Watching/
AppleEvents.c.htm

[Eric Albert]

In article <MPG.19dcc329467f27c9896ad@News.Individual.NET>,
James Weatherley <news@weatherley.net> wrote:

> In article <7Dxcb.52$aW.57488@newsfep2-gui.server.ntli.net>, e100
> [email]_per_email_here@ntlworld.com[/email] says...

> > Hi,
> >
> > I'm pretty new to the Mac, having a Windows and to some extent BSD
> > background. I'm still making my way round the documentation. Apologies if
> > I'm asking an obvious question, but I can't find the answer.
> >
> > I need to use change notification functionality, e.g. a mechanism to notify
> > an application when a change in a directory or file occurs. Windows has the
> > ChangeNotification and CompletionPort functionality. The BSDs
> > (Free/Net/Open) have kevent and kqueue. I can't find anything under Darwin,
> > but I'm convinced it's got to be there somewhere.
> >
> > I'd prefer to keep to the BSD/Mach layers if possible, because they're not
> > so unfamilar to me. The rest of the application is pure Darwin, so that
> > would keep things consistent. However, I'd happily consider using Carbon,
> > or whatever, to make the application work, but I don't know Carbon from a
> > fish, and I've got this horrible deadline.
> >
> > Can anyone point me in the right direction?

> Panther will have kevent and kqueue
> <http://www.apple.com/server/macosx/pantherserver.html>

And a notification API. 'man 3 notify' for details.

-Eric

--
Eric Albert [email]ejalbert@stanford.edu[/email]
[url]http://rescomp.stanford.edu/~ejalbert/[/url]

[Dylan]

Thanks, everyone, for your help.

Dylan Harris

--
By emailing [email]e100_per_email_here@ntlworld.com[/email], you shall give the
"International Campaign to Execute Spammers" e100, and you waive all rights
if ICES finds you've committed spam.