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I notice that when I strace a perl script that has an open() call, a
stat call is made. Is there anyway to access this information to avoid
doing a second stat call?

Alternatively, is there a way to turn a fd returned from POSIX:pen
into a perl filehandle without having a stat call performed?

thanks,
eric

wrote:
> I notice that when I strace a perl script that has an open() call, a
> stat call is made. Is there anyway to access this information to avoid
> doing a second stat call?
>
> Alternatively, is there a way to turn a fd returned from POSIX:pen
> into a perl filehandle without having a stat call performed?
>
> thanks,
> eric

Hello Eric:

I tried to trace an open call with "s" and it doesn't descend into the
function. I have seen cases when an error occurs and it does descend.
How did you discover the stat call?

Mr P

Run the following script:

#!/usr/bin/perl -w
open(FILE, "<", "open.pl") || die "$!";
close(FILE);

>From the command line run:

strace perl open.pl

You should see the calls near the end. I am running Fedora Core 4 /
perl 5.8.6.