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.. index:: single: uuid_protocol .. _uuid_protocol/0:
.. rst-class:: right
protocol
uuid_protocol
Universally unique identifier (UUID) generator protocol.
| Availability:
| logtalk_load(uuid(loader))
| Author: Paulo Moura | Version: 0:6:0 | Date: 2026-04-08
| Compilation flags:
| static
| Dependencies: | (none)
| Remarks: | (none)
| Inherited public predicates: | (none)
.. contents:: :local: :backlinks: top
Public predicates
.. index:: uuid_v1/2 .. _uuid_protocol/0::uuid_v1/2:
uuid_v1/2 ^^^^^^^^^^^^^
Returns a version 1 UUID for the given MAC address (a list of six bytes). The MAC address can be replaced by a random 6 bytes node identifier as per RFC 4122 when the MAC address is not available or should not be disclosed.
| Compilation flags:
| static
| Template:
| uuid_v1(MAC,UUID)
| Mode and number of proofs:
| uuid_v1(+list(byte),--text) - one
.. index:: uuid_v3/3 .. _uuid_protocol/0::uuid_v3/3:
uuid_v3/3 ^^^^^^^^^^^^^
Returns a version 3 UUID for the given namespace UUID and name. Namespace UUIDs and names can be represented as atoms, lists of characters, or lists of character codes. Name character codes must be bytes.
| Compilation flags:
| static
| Template:
| uuid_v3(Namespace,Name,UUID)
| Mode and number of proofs:
| uuid_v3(+text,+text,--text) - one
.. index:: uuid_v4/1 .. _uuid_protocol/0::uuid_v4/1:
uuid_v4/1 ^^^^^^^^^^^^^
Returns a version 4 UUID.
| Compilation flags:
| static
| Template:
| uuid_v4(UUID)
| Mode and number of proofs:
| uuid_v4(--text) - one
.. index:: uuid_v5/3 .. _uuid_protocol/0::uuid_v5/3:
uuid_v5/3 ^^^^^^^^^^^^^
Returns a version 5 UUID for the given namespace UUID and name. Namespace UUIDs and names can be represented as atoms, lists of characters, or lists of character codes. Name character codes must be bytes.
| Compilation flags:
| static
| Template:
| uuid_v5(Namespace,Name,UUID)
| Mode and number of proofs:
| uuid_v5(+text,+text,--text) - one
.. index:: uuid_v7/1 .. _uuid_protocol/0::uuid_v7/1:
uuid_v7/1 ^^^^^^^^^^^^^
Returns a version 7 UUID.
| Compilation flags:
| static
| Template:
| uuid_v7(UUID)
| Mode and number of proofs:
| uuid_v7(--text) - one
.. index:: uuid_null/1 .. _uuid_protocol/0::uuid_null/1:
uuid_null/1 ^^^^^^^^^^^^^^^
Returns the null UUID. Deprecated. Use uuid_nil/1 instead.
| Compilation flags:
| static
| Template:
| uuid_null(UUID)
| Mode and number of proofs:
| uuid_null(--text) - one
.. index:: uuid_nil/1 .. _uuid_protocol/0::uuid_nil/1:
uuid_nil/1 ^^^^^^^^^^^^^^
Returns the Nil UUID.
| Compilation flags:
| static
| Template:
| uuid_nil(UUID)
| Mode and number of proofs:
| uuid_nil(--text) - one
.. index:: uuid_max/1 .. _uuid_protocol/0::uuid_max/1:
uuid_max/1 ^^^^^^^^^^^^^^
Returns the Max UUID.
| Compilation flags:
| static
| Template:
| uuid_max(UUID)
| Mode and number of proofs:
| uuid_max(--text) - one
.. index:: random_node/1 .. _uuid_protocol/0::random_node/1:
random_node/1 ^^^^^^^^^^^^^^^^^
Generates a list with six random bytes that can be used in alternative to a MAC address when generating version 1 UUIDs.
| Compilation flags:
| static
| Template:
| random_node(Node)
| Mode and number of proofs:
| random_node(--list(byte)) - one
Protected predicates
(none)
Private predicates
(none)
Operators
(none)