From ed7668aa585fe38de621f919e1ee84c62cb56104 Mon Sep 17 00:00:00 2001
From: Oliver Tappe
Date: Sun, 6 Apr 2008 17:47:41 +0000
Subject: * added PODs to all Perl-modules in lib, documenting those functions
 that are meant   to be used by other OpenSLX components (i.e. scripts and
 plugins) * applied minor cleanups and convenience extensions to a couple of
 functions

git-svn-id: http://svn.openslx.org/svn/openslx/openslx/trunk@1722 95ad53e4-c205-0410-b2fa-d234c58c8868
---
 lib/OpenSLX/Syscall.pm | 45 ++++++++++++++++++++++++++++++++++++---------
 1 file changed, 36 insertions(+), 9 deletions(-)

(limited to 'lib/OpenSLX/Syscall.pm')

diff --git a/lib/OpenSLX/Syscall.pm b/lib/OpenSLX/Syscall.pm
index 5d82a361..a46d9ac6 100644
--- a/lib/OpenSLX/Syscall.pm
+++ b/lib/OpenSLX/Syscall.pm
@@ -18,8 +18,42 @@ use warnings;
 
 our $VERSION = 1.01;
 
+=head1 NAME
+
+OpenSLX::Syscall - provides wrapper functions for syscalls.
+
+=head1 DESCRIPTION
+
+This module exports one wrapper function for each syscall that OpenSLX is
+using. Each of these functions takes care to load all required Perl-headers
+before trying to invoke the respective syscall.
+
+=cut
+
 use OpenSLX::Basics;
 
+=head1 PUBLIC FUNCTIONS
+
+=over
+
+=item B<enter32BitPersonality()>
+
+Invokes the I<personality()> syscall in order to enter the 32-bit personality
+(C<PER_LINUX32>).
+
+=cut
+
+sub enter32BitPersonality
+{
+    _loadPerlHeader('syscall.ph');
+    _loadPerlHeader('linux/personality.ph', 'sys/personality.ph');
+
+    syscall(&SYS_personality, PER_LINUX32()) != -1
+        or warn _tr("unable to invoke syscall '%s'! ($!)", 'personality');
+
+    return;
+}
+
 sub _loadPerlHeader
 {
     my @phFiles = @_;
@@ -42,15 +76,8 @@ sub _loadPerlHeader
     );
 }
 
-sub enter32BitPersonality
-{
-    _loadPerlHeader('syscall.ph');
-    _loadPerlHeader('linux/personality.ph', 'sys/personality.ph');
+=back
 
-    syscall(&SYS_personality, PER_LINUX32()) != -1
-        or warn _tr("unable to invoke syscall '%s'! ($!)", 'personality');
-
-    return;
-}
+=cut
 
 1;
-- 
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