Beefy Boxes and Bandwidth Generously Provided by pair Networks
Problems? Is your data what you think it is?
 
PerlMonks  

Re^7: STDERR going to string

by Anonymous Monk
on Oct 11, 2011 at 11:30 UTC ( #930787=note: print w/ replies, xml ) Need Help??


in reply to Re^6: STDERR going to string
in thread STDERR going to string

Am I missing something?

$ perl -le " print for map { fileno $_ } \*STDIN, \*STDOUT, \*STDERR +" 0 1 2

There is nothing you can do to change the fileno of STDIN/STDOUT/STDERR on a c-level on win32, they're always 0 1 2, so any c code printing on STDERR is printing on 2, always

To capture STDERR you have to launch a process, or

Patch XS module to use perl functions for printing to stderr (perlclib), so that when you redirect STDERR/STDOUT (like using IO::NestedCapture), it notices


Comment on Re^7: STDERR going to string
Download Code
Re^8: STDERR going to string
by philkime (Sexton) on Oct 11, 2011 at 13:19 UTC
    Ok, thanks. I looked into patching but the STDERR stuff comes from a library which the XS uses, not the XS itself. To perlIO that would probably be too tricky (for me, anyway). I wonder if I could get round it with a simple fork() around the sub calls ...

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://930787]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others studying the Monastery: (10)
As of 2015-07-05 17:32 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









    Results (67 votes), past polls