in reply to close and autodie on pipes
From close in perldoc (emphasis added):
If the filehandle came from a piped open, close returns false if one of the other syscalls involved fails or if its program exits with non-zero status. If the only problem was that the program exited non-zero, $! will be set to 0.
So, by setting your pipe program to exit 1 you are ensuring that close() fails (i.e., returns false). autodie is working correctly here.
how should I check for errors?
#! perl use strict; use warnings; use autodie; open(my $fh, '-|', 'bash -c "echo Hello; exit 1"'); print <$fh>; { no autodie; unless (close($fh)) { die "Real pipe error: $!" if $!; } } print "status: ", ($? >> 8), "\n";
HTH,
Athanasius <°(((>< contra mundum
|
---|
In Section
Seekers of Perl Wisdom