1package File::stat; 2use strict; 3 4use 5.005_64; 5our(@EXPORT, @EXPORT_OK, %EXPORT_TAGS); 6 7BEGIN { 8 use Exporter (); 9 @EXPORT = qw(stat lstat); 10 @EXPORT_OK = qw( $st_dev $st_ino $st_mode 11 $st_nlink $st_uid $st_gid 12 $st_rdev $st_size 13 $st_atime $st_mtime $st_ctime 14 $st_blksize $st_blocks 15 ); 16 %EXPORT_TAGS = ( FIELDS => [ @EXPORT_OK, @EXPORT ] ); 17} 18use vars @EXPORT_OK; 19 20# Class::Struct forbids use of @ISA 21sub import { goto &Exporter::import } 22 23use Class::Struct qw(struct); 24struct 'File::stat' => [ 25 map { $_ => '$' } qw{ 26 dev ino mode nlink uid gid rdev size 27 atime mtime ctime blksize blocks 28 } 29]; 30 31sub populate (@) { 32 return unless @_; 33 my $stob = new(); 34 @$stob = ( 35 $st_dev, $st_ino, $st_mode, $st_nlink, $st_uid, $st_gid, $st_rdev, 36 $st_size, $st_atime, $st_mtime, $st_ctime, $st_blksize, $st_blocks ) 37 = @_; 38 return $stob; 39} 40 41sub lstat ($) { populate(CORE::lstat(shift)) } 42 43sub stat ($) { 44 my $arg = shift; 45 my $st = populate(CORE::stat $arg); 46 return $st if $st; 47 no strict 'refs'; 48 require Symbol; 49 return populate(CORE::stat \*{Symbol::qualify($arg)}); 50} 51 521; 53__END__ 54 55=head1 NAME 56 57File::stat - by-name interface to Perl's built-in stat() functions 58 59=head1 SYNOPSIS 60 61 use File::stat; 62 $st = stat($file) or die "No $file: $!"; 63 if ( ($st->mode & 0111) && $st->nlink > 1) ) { 64 print "$file is executable with lotsa links\n"; 65 } 66 67 use File::stat qw(:FIELDS); 68 stat($file) or die "No $file: $!"; 69 if ( ($st_mode & 0111) && $st_nlink > 1) ) { 70 print "$file is executable with lotsa links\n"; 71 } 72 73=head1 DESCRIPTION 74 75This module's default exports override the core stat() 76and lstat() functions, replacing them with versions that return 77"File::stat" objects. This object has methods that 78return the similarly named structure field name from the 79stat(2) function; namely, 80dev, 81ino, 82mode, 83nlink, 84uid, 85gid, 86rdev, 87size, 88atime, 89mtime, 90ctime, 91blksize, 92and 93blocks. 94 95You may also import all the structure fields directly into your namespace 96as regular variables using the :FIELDS import tag. (Note that this still 97overrides your stat() and lstat() functions.) Access these fields as 98variables named with a preceding C<st_> in front their method names. 99Thus, C<$stat_obj-E<gt>dev()> corresponds to $st_dev if you import 100the fields. 101 102To access this functionality without the core overrides, 103pass the C<use> an empty import list, and then access 104function functions with their full qualified names. 105On the other hand, the built-ins are still available 106via the C<CORE::> pseudo-package. 107 108=head1 NOTE 109 110While this class is currently implemented using the Class::Struct 111module to build a struct-like class, you shouldn't rely upon this. 112 113=head1 AUTHOR 114 115Tom Christiansen 116