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# You may distribute under the terms of either the GNU General Public License
# or the Artistic License (the same terms as Perl itself)
#
# (C) Paul Evans, 2014 -- leonerd@leonerd.org.uk
package IO::Async::OS::linux;
use strict;
use warnings;
our $VERSION = '0.64';
our @ISA = qw( IO::Async::OS::_Base );
=head1 NAME
C<IO::Async::OS::linux> - operating system abstractions on C<Linux> for C<IO::Async>
=head1 DESCRIPTION
This module contains OS support code for C<Linux>.
See instead L<IO::Async::OS>.
=cut
# Try to use /proc/pid/fd to get the list of actually-open file descriptors
# for our process. Saves a bit of time when running with high ulimit -n /
# fileno counts.
sub potentially_open_fds
{
my $class = shift;
opendir my $fd_path, "/proc/$$/fd" or do {
warn "Cannot open /proc/$$/fd, falling back to generic method - $!";
return $class->SUPER::potentially_open_fds
};
# Skip ., .., our directory handle itself and any other cruft
# except fileno() isn't available for the handle so we'll
# end up with that in the output anyway. As long as we're
# called just before the relevant close() loop, this
# should be harmless enough.
my @fd = map { m/^([0-9]+)$/ ? $1 : () } readdir $fd_path;
closedir $fd_path;
return @fd;
}
=head1 AUTHOR
Paul Evans <leonerd@leonerd.org.uk>
=cut
0x55AA;
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