doompanning/external/nng/docs/man/nng_mtx_unlock.3supp.adoc
2023-02-03 21:18:59 +01:00

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= nng_mtx_unlock(3supp)
//
// Copyright 2018 Staysail Systems, Inc. <info@staysail.tech>
// Copyright 2018 Capitar IT Group BV <info@capitar.com>
//
// This document is supplied under the terms of the MIT License, a
// copy of which should be located in the distribution where this
// file was obtained (LICENSE.txt). A copy of the license may also be
// found online at https://opensource.org/licenses/MIT.
//
== NAME
nng_mtx_unlock - unlock mutex
== SYNOPSIS
[source, c]
----
#include <nng/nng.h>
#include <nng/supplemental/util/platform.h>
void nng_mtx_unlock(nng_mtx *mtx);
----
== DESCRIPTION
The `nng_mtx_unlock()` relinquishes ownership of the mutex _mtx_ that
was previously acquired via xref:nng_mtx_lock.3supp.adoc[`nng_mtx_lock()`].
IMPORTANT: A mutex can _only_ be unlocked by the thread that locked it.
Attempting to unlock a mutex that is not owned by the caller will result
in undefined behavior.
== RETURN VALUES
None.
== ERRORS
None.
== SEE ALSO
[.text-left]
xref:nng_mtx_alloc.3supp.adoc[nng_mtx_alloc(3supp)],
xref:nng_mtx_lock.3supp.adoc[nng_mtx_lock(3supp)],
xref:nng.7.adoc[nng(7)]