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1 | package Fcntl; |
2 | |
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3 | =head1 NAME |
4 | |
5 | Fcntl - load the C Fcntl.h defines |
6 | |
7 | =head1 SYNOPSIS |
8 | |
9 | use Fcntl; |
10 | |
11 | =head1 DESCRIPTION |
12 | |
13 | This module is just a translation of the C F<fnctl.h> file. |
14 | Unlike the old mechanism of requiring a translated F<fnctl.ph> |
15 | file, this uses the B<h2xs> program (see the Perl source distribution) |
16 | and your native C compiler. This means that it has a |
17 | far more likely chance of getting the numbers right. |
18 | |
19 | =head1 NOTE |
20 | |
21 | Only C<#define> symbols get translated; you must still correctly |
22 | pack up your own arguments to pass as args for locking functions, etc. |
23 | |
24 | =cut |
25 | |
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26 | use vars qw($VERSION @ISA @EXPORT @EXPORT_OK $AUTOLOAD); |
27 | |
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28 | require Exporter; |
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29 | require DynaLoader; |
fec02dd3 |
30 | @ISA = qw(Exporter DynaLoader); |
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31 | $VERSION = "1.00"; |
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32 | # Items to export into callers namespace by default |
33 | # (move infrequently used names to @EXPORT_OK below) |
34 | @EXPORT = |
35 | qw( |
36 | F_DUPFD F_GETFD F_GETLK F_SETFD F_GETFL F_SETFL F_SETLK F_SETLKW |
37 | FD_CLOEXEC F_RDLCK F_UNLCK F_WRLCK |
38 | O_CREAT O_EXCL O_NOCTTY O_TRUNC |
39 | O_APPEND O_NONBLOCK |
40 | O_NDELAY |
41 | O_RDONLY O_RDWR O_WRONLY |
42 | ); |
43 | # Other items we are prepared to export if requested |
44 | @EXPORT_OK = qw( |
45 | ); |
46 | |
47 | sub AUTOLOAD { |
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48 | my($constname); |
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49 | ($constname = $AUTOLOAD) =~ s/.*:://; |
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50 | my $val = constant($constname, @_ ? $_[0] : 0); |
a0d0e21e |
51 | if ($! != 0) { |
52 | if ($! =~ /Invalid/) { |
53 | $AutoLoader::AUTOLOAD = $AUTOLOAD; |
54 | goto &AutoLoader::AUTOLOAD; |
55 | } |
56 | else { |
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57 | my ($pack,$file,$line) = caller; |
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58 | die "Your vendor has not defined Fcntl macro $constname, used at $file line $line. |
59 | "; |
60 | } |
61 | } |
62 | eval "sub $AUTOLOAD { $val }"; |
63 | goto &$AUTOLOAD; |
64 | } |
65 | |
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66 | bootstrap Fcntl $VERSION; |
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67 | |
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68 | 1; |