FM / 5.34.0

/usr/share/perl/5.34.0/

/usr/share/perl/5.34.0

Name	Size	Mode	Actions
App/	-	0755	rm
Archive/	-	0755	rm
Attribute/	-	0755	rm
autodie/	-	0755	rm
B/	-	0755	rm
Carp/	-	0755	rm
Class/	-	0755	rm
Compress/	-	0755	rm
Config/	-	0755	rm
CPAN/	-	0755	rm
DBM_Filter/	-	0755	rm
Devel/	-	0755	rm
Digest/	-	0755	rm
Encode/	-	0755	rm
encoding/	-	0755	rm
Exporter/	-	0755	rm
ExtUtils/	-	0755	rm
File/	-	0755	rm
Filter/	-	0755	rm
Getopt/	-	0755	rm
HTTP/	-	0755	rm
I18N/	-	0755	rm
IO/	-	0755	rm
IPC/	-	0755	rm
JSON/	-	0755	rm
Locale/	-	0755	rm
Math/	-	0755	rm
Memoize/	-	0755	rm
Module/	-	0755	rm
Net/	-	0755	rm
overload/	-	0755	rm
Params/	-	0755	rm
Parse/	-	0755	rm
Perl/	-	0755	rm
PerlIO/	-	0755	rm
Pod/	-	0755	rm
pod/	-	0755	rm
Search/	-	0755	rm
TAP/	-	0755	rm
Term/	-	0755	rm
Test/	-	0755	rm
Test2/	-	0755	rm
Text/	-	0755	rm
Thread/	-	0755	rm
Tie/	-	0755	rm
Time/	-	0755	rm
Unicode/	-	0755	rm
unicore/	-	0755	rm
User/	-	0755	rm
version/	-	0755	rm
warnings/	-	0755	rm
AnyDBM_File.pm	2618	0644	edit dl rm
autodie.pm	12436	0644	edit dl rm
AutoLoader.pm	15797	0644	edit dl rm
AutoSplit.pm	19637	0644	edit dl rm
autouse.pm	4238	0644	edit dl rm
base.pm	10961	0644	edit dl rm
Benchmark.pm	31026	0644	edit dl rm
bigint.pm	23398	0644	edit dl rm
bignum.pm	21137	0644	edit dl rm
bigrat.pm	16154	0644	edit dl rm
blib.pm	2062	0644	edit dl rm
bytes.pm	3782	0644	edit dl rm
bytes_heavy.pl	758	0644	edit dl rm
Carp.pm	35985	0644	edit dl rm
charnames.pm	20931	0644	edit dl rm
constant.pm	14724	0644	edit dl rm
CORE.pod	3188	0644	edit dl rm
CPAN.pm	146520	0644	edit dl rm
DB.pm	18922	0644	edit dl rm
DBM_Filter.pm	14385	0644	edit dl rm
deprecate.pm	5036	0644	edit dl rm
diagnostics.pm	19299	0644	edit dl rm
Digest.pm	11225	0644	edit dl rm
DirHandle.pm	2085	0644	edit dl rm
Dumpvalue.pm	17668	0644	edit dl rm
dumpvar.pl	15555	0644	edit dl rm
English.pm	4761	0644	edit dl rm
Env.pm	5571	0644	edit dl rm
experimental.pm	7600	0644	edit dl rm
Exporter.pm	18774	0644	edit dl rm
Fatal.pm	59085	0644	edit dl rm
feature.pm	22644	0644	edit dl rm
fields.pm	9475	0644	edit dl rm
FileCache.pm	5549	0644	edit dl rm
FileHandle.pm	6784	0644	edit dl rm
filetest.pm	4003	0644	edit dl rm
FindBin.pm	4648	0644	edit dl rm
if.pm	3626	0644	edit dl rm
integer.pm	3254	0644	edit dl rm
Internals.pod	2575	0644	edit dl rm
less.pm	3204	0644	edit dl rm
locale.pm	4885	0644	edit dl rm
Memoize.pm	36192	0644	edit dl rm
meta_notation.pm	2117	0644	edit dl rm
NEXT.pm	18982	0644	edit dl rm
ok.pm	967	0644	edit dl rm
open.pm	8512	0644	edit dl rm
overload.pm	53349	0644	edit dl rm
overloading.pm	1808	0644	edit dl rm
parent.pm	2702	0644	edit dl rm
perl5db.pl	317295	0644	edit dl rm
perlfaq.pm	77	0644	edit dl rm
PerlIO.pm	14441	0644	edit dl rm
Safe.pm	25352	0644	edit dl rm
SelectSaver.pm	1076	0644	edit dl rm
SelfLoader.pm	17686	0644	edit dl rm
sigtrap.pm	8736	0644	edit dl rm
sort.pm	3911	0644	edit dl rm
strict.pm	4783	0644	edit dl rm
subs.pm	945	0644	edit dl rm
Symbol.pm	4905	0644	edit dl rm
Test.pm	30042	0644	edit dl rm
Test2.pm	6393	0644	edit dl rm
Thread.pm	8289	0644	edit dl rm
UNIVERSAL.pm	6594	0644	edit dl rm
utf8.pm	10756	0644	edit dl rm
vars.pm	2458	0644	edit dl rm
version.pm	1976	0644	edit dl rm
version.pod	9832	0644	edit dl rm
vmsish.pm	4313	0644	edit dl rm
warnings.pm	53221	0644	edit dl rm
XSLoader.pm	11252	0644	edit dl rm
_charnames.pm	34151	0644	edit dl rm

Edit: /usr/share/perl/5.34.0/FileCache.pm (5549B)

package FileCache;

our $VERSION = '1.10';

=head1 NAME

FileCache - keep more files open than the system permits

=head1 SYNOPSIS

no strict 'refs';

use FileCache;
    # or
    use FileCache maxopen => 16;

cacheout $mode, $path;
    # or
    cacheout $path;
    print $path @data;

$fh = cacheout $mode, $path;
    # or
    $fh = cacheout $path;
    print $fh @data;

=head1 DESCRIPTION

The C<cacheout> function will make sure that there's a filehandle open
for reading or writing available as the pathname you give it. It
automatically closes and re-opens files if you exceed your system's
maximum number of file descriptors, or the suggested maximum I<maxopen>.

=over

=item cacheout EXPR

The 1-argument form of cacheout will open a file for writing (C<< '>' >>)
on it's first use, and appending (C<<< '>>' >>>) thereafter.

Returns EXPR on success for convenience. You may neglect the
return value and manipulate EXPR as the filehandle directly if you prefer.

=item cacheout MODE, EXPR

The 2-argument form of cacheout will use the supplied mode for the initial
and subsequent openings. Most valid modes for 3-argument C<open> are supported
namely; C<< '>' >>, C<< '+>' >>, C<< '<' >>, C<< '<+' >>, C<<< '>>' >>>,
C< '|-' > and C< '-|' >

To pass supplemental arguments to a program opened with C< '|-' > or C< '-|' >
append them to the command string as you would system EXPR.

Returns EXPR on success for convenience. You may neglect the
return value and manipulate EXPR as the filehandle directly if you prefer.

=back

=head1 CAVEATS

While it is permissible to C<close> a FileCache managed file,
do not do so if you are calling C<FileCache::cacheout> from a package other
than which it was imported, or with another module which overrides C<close>.
If you must, use C<FileCache::cacheout_close>.

Although FileCache can be used with piped opens ('-|' or '|-') doing so is
strongly discouraged.  If FileCache finds it necessary to close and then reopen
a pipe, the command at the far end of the pipe will be reexecuted - the results
of performing IO on FileCache'd pipes is unlikely to be what you expect.  The
ability to use FileCache on pipes may be removed in a future release.

FileCache does not store the current file offset if it finds it necessary to
close a file.  When the file is reopened, the offset will be as specified by the
original C<open> file mode.  This could be construed to be a bug.

The module functionality relies on symbolic references, so things will break
under 'use strict' unless 'no strict "refs"' is also specified.

=head1 BUGS

F<sys/param.h> lies with its C<NOFILE> define on some systems,
so you may have to set I<maxopen> yourself.

=cut

require 5.006;
use Carp;
use strict;
no strict 'refs';

# These are not C<my> for legacy reasons.
# Previous versions requested the user set $cacheout_maxopen by hand.
# Some authors fiddled with %saw to overcome the clobber on initial open.
our %saw;
our $cacheout_maxopen = 16;

use parent 'Exporter';
our @EXPORT = qw[cacheout cacheout_close];

my %isopen;
my $cacheout_seq = 0;

sub import {
    my ($pkg,%args) = @_;

# Use Exporter. %args are for us, not Exporter.
    # Make sure to up export_to_level, or we will import into ourselves,
    # rather than our calling package;

__PACKAGE__->export_to_level(1);
    Exporter::import( $pkg );

# Truth is okay here because setting maxopen to 0 would be bad
    return $cacheout_maxopen = $args{maxopen} if $args{maxopen};

# XXX This code is crazy.  Why is it a one element foreach loop?
    # Why is it using $param both as a filename and filehandle?
    foreach my $param ( '/usr/include/sys/param.h' ){
      if (open($param, '<', $param)) {
	local ($_, $.);
	while (<$param>) {
	  if( /^\s*#\s*define\s+NOFILE\s+(\d+)/ ){
	    $cacheout_maxopen = $1 - 4;
	    close($param);
	    last;
	  }
	}
	close $param;
      }
    }
    $cacheout_maxopen ||= 16;
}

# Open in their package.
sub cacheout_open {
  return open(*{caller(1) . '::' . $_[1]}, $_[0], $_[1]) && $_[1];
}

# Close in their package.
sub cacheout_close {
  # Short-circuit in case the filehandle disappeared
  my $pkg = caller($_[1]||0);
  defined fileno(*{$pkg . '::' . $_[0]}) &&
    CORE::close(*{$pkg . '::' . $_[0]});
  delete $isopen{$_[0]};
}

# But only this sub name is visible to them.
sub cacheout {
    my($mode, $file, $class, $ret, $ref, $narg);
    croak "Not enough arguments for cacheout"  unless $narg = scalar @_;
    croak "Too many arguments for cacheout"    if $narg > 2;

($mode, $file) = @_;
    ($file, $mode) = ($mode, $file) if $narg == 1;
    croak "Invalid mode for cacheout" if $mode &&
      ( $mode !~ /^\s*(?:>>|\+?>|\+?<|\|\-|)|\-\|\s*$/ );

# Mode changed?
    if( $isopen{$file} && ($mode||'>') ne $isopen{$file}->[1] ){
      &cacheout_close($file, 1);
    }

if( $isopen{$file}) {
      $ret = $file;
      $isopen{$file}->[0]++;
    }
    else{
      if( scalar keys(%isopen) > $cacheout_maxopen -1 ) {
	my @lru = sort{ $isopen{$a}->[0] <=> $isopen{$b}->[0] } keys(%isopen);
	$cacheout_seq = 0;
	$isopen{$_}->[0] = $cacheout_seq++ for
	  splice(@lru, int($cacheout_maxopen / 3)||$cacheout_maxopen);
	&cacheout_close($_, 1) for @lru;
      }

unless( $ref ){
	$mode ||= $saw{$file} ? '>>' : ($saw{$file}=1, '>');
      }
      #XXX should we just return the value from cacheout_open, no croak?
      $ret = cacheout_open($mode, $file) or croak("Can't create $file: $!");

$isopen{$file} = [++$cacheout_seq, $mode];
    }
    return $ret;
}
1;

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