1uuid(3) User Contributed Perl Documentation uuid(3)
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6 OSSP::uuid - OSSP uuid Perl Binding
7
9 OSSP uuid is a ISO-C:1999 application programming interface (API) and
10 corresponding command line interface (CLI) for the generation of DCE
11 1.1, ISO/IEC 11578:1996 and RFC 4122 compliant Universally Unique
12 Identifier (UUID). It supports DCE 1.1 variant UUIDs of version 1 (time
13 and node based), version 3 (name based, MD5), version 4 (random number
14 based) and version 5 (name based, SHA-1). Additional API bindings are
15 provided for the languages ISO-C++:1998, Perl:5 and PHP:4/5. Optional
16 backward compatibility exists for the ISO-C DCE-1.1 and Perl Data::UUID
17 APIs.
18 OSSP::uuid is the Perl binding to the OSSP uuid API. Three variants
20 are provided:
21 TIE-STYLE API
23 The TIE-style API is a functionality-reduced wrapper around the OO-
24 style API and intended for very high-level convenience programming:
25 "use OSSP::uuid;"
27 tie" my $uuid, 'OSSP::uuid::tie', $mode, ...;"
28 "$uuid = [ $mode, ... ];"
29 "print "UUID=$uuid\n";"
30 "untie $uuid;"
31 OO-STYLE API
33 The OO-style API is a wrapper around the C-style API and intended for
34 high-level regular programming.
35 "use OSSP::uuid;"
37 "my $uuid = "new" OSSP::uuid;"
38 "$uuid->"load"($name);"
39 "$uuid->"make"($mode, ...);"
40 "$result = $uuid->"isnil"();"
41 "$result = $uuid->"compare"($uuid2);"
42 "$uuid->"import"($fmt, $data_ptr);"
43 "$data_ptr = $uuid->"export"($fmt);"
44 "[(]$str[, $rc)] = $uuid->"error"();"
45 "$ver = $uuid->"version"();"
46 "undef $uuid;"
47 Additionally, the strings "v1", "v3", "v4", "v5" and "mc" can be used
49 in $mode and the strings "bin", "str", and "txt" can be used for $fmt.
50 C-STYLE API
52 The C-style API is a direct mapping of the OSSP uuid ISO-C API to Perl
53 and is intended for low-level programming. See uuid(3) for a
54 description of the functions and their expected arguments.
55 "use OSSP::uuid qw(:all);"
57 "my $uuid; $rc = "uuid_create"($uuid);"
58 "$rc = "uuid_load"($uuid, $name);"
59 "$rc = "uuid_make"($uuid, $mode, ...);"
60 "$rc = "uuid_isnil"($uuid, $result);"
61 "$rc = "uuid_compare"($uuid, $uuid2, $result);"
62 "$rc = "uuid_import"($uuid, $fmt, $data_ptr, $data_len);"
63 "$rc = "uuid_export"($uuid, $fmt, $data_ptr, $data_len);"
64 "$str = "uuid_error"($rc);"
65 "$ver = "uuid_version"();"
66 "$rc = "uuid_destroy"($uuid);"
67 Additionally, the following constants are exported for use in $rc,
69 $mode, $fmt and $ver:
70 "UUID_VERSION", "UUID_LEN_BIN", "UUID_LEN_STR", "UUID_RC_OK",
72 "UUID_RC_ARG", "UUID_RC_MEM", "UUID_RC_SYS", "UUID_RC_INT",
73 "UUID_RC_IMP", "UUID_MAKE_V1", "UUID_MAKE_V3", "UUID_MAKE_V4",
74 "UUID_MAKE_V5", "UUID_MAKE_MC", "UUID_FMT_BIN", "UUID_FMT_STR",
75 "UUID_FMT_SIV", "UUID_FMT_TXT".
76
78 The following two examples create the version 3 UUID
79 "02d9e6d5-9467-382e-8f9b-9300a64ac3cd", both via the OO-style and the
80 C-style API. Error handling is omitted here for easier reading, but has
81 to be added for production-quality code.
82 # TIE-style API (very high-level)
84 use OSSP::uuid;
85 tie my $uuid, 'OSSP::uuid::tie';
86 $uuid = [ "v1" ];
87 print "UUIDs: $uuid, $uuid, $uuid\n";
88 $uuid = [ "v3", "ns:URL", "http://www.ossp.org/" ];
89 print "UUIDs: $uuid, $uuid, $uuid\n";
90 untie $uuid;
91 # OO-style API (high-level)
93 use OSSP::uuid;
94 my $uuid = new OSSP::uuid;
95 my $uuid_ns = new OSSP::uuid;
96 $uuid_ns->load("ns:URL");
97 $uuid->make("v3", $uuid_ns, "http://www.ossp.org/");
98 undef $uuid_ns;
99 my $str = $uuid->export("str");
100 undef $uuid;
101 print "$str\n";
102 # C-style API (low-level)
104 use OSSP::uuid qw(:all);
105 my $uuid; uuid_create($uuid);
106 my $uuid_ns; uuid_create($uuid_ns);
107 uuid_load($uuid_ns, "ns:URL");
108 uuid_make($uuid, UUID_MAKE_V3, $uuid_ns, "http://www.ossp.org/");
109 uuid_destroy($uuid_ns);
110 my $str; uuid_export($uuid, UUID_FMT_STR, $str, undef);
111 uuid_destroy($uuid);
112 print "$str\n";
113
115 uuid(1), uuid-config(1), uuid(3).
116
118 The Perl binding OSSP::uuid to OSSP uuid was implemented in November
119 2004 by Ralf S. Engelschall <rse@engelschall.com>.
120perl v5.32.0 2020-07-29 uuid(3)