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.. rst-class:: align-right

built-in predicate

.. index:: pair: threaded_engine_destroy/1; Built-in predicate .. _predicates_threaded_engine_destroy_1:

threaded_engine_destroy/1

Description

::

threaded_engine_destroy(Engine)

Stops and destroys an engine.

.. note::

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

Modes and number of proofs

::

threaded_engine_destroy(@nonvar) - one

Errors

| Engine is a variable: | instantiation_error | Engine is neither a variable nor the name of an existing engine: | existence_error(engine, Engine)

Examples

::

% stop the worker_1 engine: | ?- threaded_engine_destroy(worker_1).

% stop all engines: | ?- forall( threaded_engine(Engine), threaded_engine_destroy(Engine) ).

.. seealso::

:ref:predicates_threaded_engine_create_3, :ref:predicates_threaded_engine_self_1, :ref:predicates_threaded_engine_1