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+= nng_http_server_hold(3http)
+//
+// 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_http_server_hold - get and hold HTTP server instance
+
+== SYNOPSIS
+
+[source, c]
+----
+#include <nng/nng.h>
+#include <nng/supplemental/http/http.h>
+
+int nng_http_server_hold(nng_http_server **serverp, const nng_url *url);
+----
+
+== DESCRIPTION
+
+The `nng_http_server_hold()` acquires an instance of an HTTP server suitable
+for use in serving the URL identified by _url_, and stores a pointer to it
+at the location pointed to by _serverp_.
+
+This function first looks to see if an existing HTTP server instance exists,
+that is suitable for this.
+If so, it increments the reference count on it and uses that.
+Otherwise, it will attempt to create a new server instance
+with an initial reference count of one (1).
+
+The server instance is not started, and can have additional configuration
+applied to it before it is later started with
+<<nng_http_server_start.3http#,`nng_http_server_start()`>>.
+
+NOTE: The URL matching logic in determining servers is unable to distinguish
+between different aliases for the same local IP address.
+This may create problems when using URLs for virtual hosting.
+It is recommended to use canonical IP addresses or names in the
+_url_ to avoid confusion.
+
+== RETURN VALUES
+
+This function returns 0 on success, and non-zero otherwise.
+
+== ERRORS
+
+`NNG_ENOMEM`:: Insufficient free memory exists.
+`NNG_ENOTSUP`:: HTTP not supported.
+
+== SEE ALSO
+
+<<nng_http_server_add_handler.3http#,nng_http_server_add_handler(3http)>>,
+<<nng_http_server_release.3http#,nng_http_server_release(3http)>>,
+<<nng_http_server_stop.3http#,nng_http_server_stop(3http)>>,
+<<nng_url_parse.3#,nng_url_parse(3)>>
+<<nng_strerror.3#,nng_strerror(3)>>,
+<<nng.7#,nng(7)>>