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= nng_aio_set_msg(3)
//
// 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_aio_set_msg - set message for asynchronous send

== SYNOPSIS

[source, c]
----
#include <nng/nng.h>

void nng_aio_set_msg(nng_aio *aio, nng_msg *msg);
----

== DESCRIPTION

The `nng_aio_set_msg()` function sets the message that will be used
for an asynchronous send operation (see xref:nng_send_aio.3.adoc[`nng_send_aio()`]).

IMPORTANT: The xref:nng_aio.5.adoc[`nng_aio`] must not have an operation in progress.

== RETURN VALUES

None.

== ERRORS

None.

== SEE ALSO

[.text-left]
xref:nng_aio_get_msg.3.adoc[nng_aio_get_msg(3)],
xref:nng_send_aio.3.adoc[nng_send_aio(3)],
xref:nng_aio.5.adoc[nng_aio(5)],
xref:nng_msg.5.adoc[nng_msg(5)],
xref:nng.7.adoc[nng(7)]