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UUID-FFI-0.11
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/ UUID::FFI

NAME

UUID::FFI - Universally Unique Identifiers FFI style

VERSION

version 0.11

SYNOPSIS


            

              
              
my $uuid = UUID::FFI->new_random;
print $uuid->as_hex, "\n";

DESCRIPTION

This module provides an FFI interface to libuuid. libuuid library is used to generate unique identifiers for objects that may be accessible beyond the local system

CONSTRUCTORS

new


            

              
              
my $uuid = UUID::FFI->new($hex);

Create a new UUID object from the hex representation $hex.

new_random


            

              
              
my $uuid = UUID::FFI->new_random;

Create a new UUID object with a randomly generated value.

new_time


            

              
              
my $uuid = UUID::FFI->new_time;

Create a new UUID object generated using the time and mac address. This can leak information about when and where the UUID was generated.

new_null


            

              
              
my $uuid = UUID::FFI->new_null;

Create a new UUID NULL UUID object (all zeros).

METHODS

is_null


            

              
              
my $bool = $uuid->is_null;

Returns true if the UUID is NULL UUID.

clone


            

              
              
my $uuid2 = $uuid->clone;

Create a new UUID object with the identical value to the original.

as_hex


            

              
              
my $hex = $uuid->as_hex;
my $hex = "$uuid";

Returns the hex representation of the UUID. The stringification of UUID::FFI uses this function, so you can also use it in a double quoted string.

compare


            

              
              
my $cmp = $uuid1->compare($uuid2);
my $cmp = $uuid1 <=> $uuid2;
my @sorted_uuids = sort { $a->compare($b) } @uuids;
my @sorted_uuids = sort { $a <=> $b } @uuids;

Returns an integer less than, equal to or greater than zero if $uuid1 is found, respectively, to be lexicographically less than, equal, or greater that $uuid2. The <=> is also overloaded so you can use that too.

type


            

              
              
my $type = $uuid->type;

Returns the type of UUID, either time or random, if it can be identified.

variant


            

              
              
my $variant = $uuid->variant

Returns the variant of the UUID, either ncs, dce, microsoft or other.

time


            

              
              
my $time = $uuid->time;

Returns the time the UUID was generated. The value returned is in seconds since the UNIX epoch, so is compatible with perl builtins like time and localtime.

AUTHOR

Graham Ollis <plicease@cpan.org>

COPYRIGHT AND LICENSE

This software is copyright (c) 2014-2022 by Graham Ollis.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.