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sybperl-l Archive
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From: Michael Peppler <mpeppler at MBAY dot NET>
Subject: Re: ct_callback from perl
Date: Mar 5 1998 12:11AM
Todd Cooper wrote:
>
> I hope you can help :-)
>
> I am having problems calling ct_callback from sybperl. Do you have
> any examples? My problem may stem from the fact that I am calling
> from my own library. No way of passing the function seems to work. I
> looked at the test library in the distribution and it was not much
> help.
>
> The snippet of code I am using is:
> $self->log("before setting callbacks retval=$retval error=$!");
> $retval = $self->{'db_connection'}->ct_callback(CS_CLIENTMSG_CB, \&msg_cb);
ct_callback() is not a function that should be called with a database
handle. It's purpose is to install a callback which will be called
when an error occurs, on any database connection.
So the correct syntax would be:
Sybase::CTlib::ct_callback(CS_CLIENTMSG_CB, \&msg_cb);
> How does the literal "srv_cb" actually work? Does it look up a global
> function with that name?
Yes. So you're really better off by using \&srv_cb.
Michael
--
Michael Peppler -||- Data Migrations Inc.
mpeppler@datamig.com -||- http://www.mbay.net/~mpeppler
Int. Sybase User Group -||- http://www.isug.com
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