.. This file is part of Logtalk https://logtalk.org/ SPDX-FileCopyrightText: 1998-2024 Paulo Moura <pmoura@logtalk.org> SPDX-License-Identifier: Apache-2.0

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

.. rst-class:: align-right

built-in predicate

.. index:: pair: threaded_ignore/1; Built-in predicate .. _predicates_threaded_ignore_1:

threaded_ignore/1

Description

threaded_ignore(Goal)

Proves Goal asynchronously using a new thread. Only the first goal solution is found. The argument can be a message-sending goal. This call always succeeds, independently of the result (success, failure, or exception), which is simply discarded instead of being sent back to the message queue of the object containing the call (:term:this).

.. note::

This predicate requires a :term:`backend Prolog compiler` providing compatible multi-threading primitives. The value of the read-only :ref:`threads <flag_threads>` flag is set to supported when that is the case.

Meta-predicate template

threaded_ignore(0)

Modes and number of proofs

threaded_ignore(@callable) - one

Errors

| Goal is a variable: | instantiation_error | Goal is neither a variable nor a callable term: | type_error(callable, Goal)

Examples

.. seealso::

:ref:predicates_threaded_call_1_2, :ref:predicates_threaded_exit_1_2, :ref:predicates_threaded_once_1_2, :ref:predicates_threaded_peek_1_2, :ref:predicates_threaded_1, :ref:directives_synchronized_1