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+= nng_push(7)
+//
+// 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_push - push protocol
+
+== SYNOPSIS
+
+[source,c]
+----------
+#include <nng/protocol/pipeline0/push.h>
+
+int nng_push0_open(nng_socket *s);
+----------
+
+== DESCRIPTION
+
+(((protocol, _push_)))
+The ((_push_ protocol)) is one half of a ((pipeline pattern)).
+The other side is the <<nng_pull.7#,_pull_>> protocol.
+
+In the pipeline pattern, pushers distribute messages to pullers. 
+Each message sent by a pusher will be sent to one of its peer pullers,
+chosen in a round-robin fashion
+from the set of connected peers available for receiving.
+This property makes this pattern useful in ((load-balancing)) scenarios.
+
+=== Socket Operations
+
+The <<nng_push_open.3#,`nng_push0_open()`>> call creates a pusher socket.
+This socket may be used to send messages, but is unable to receive them.
+Attempts to receive messages will result in `NNG_ENOTSUP`.
+
+Send operations will observe flow control (back-pressure), so that
+only peers capable of accepting a message will be considered.
+If no peer is available to receive a message, then the send operation will
+wait until one is available, or the operation times out.
+
+NOTE: Although the pipeline protocol honors flow control, and attempts
+to avoid dropping messages, no guarantee of delivery is made.
+Furthermore, as there is no capability for message acknowledgement,
+applications that need reliable delivery are encouraged to consider the
+<<nng_req.7#,_req_>> protocol instead.
+
+=== Protocol Versions
+
+Only version 0 of this protocol is supported.
+(At the time of writing, no other versions of this protocol have been defined.)
+
+=== Protocol Options
+
+The _push_ protocol has no protocol-specific options.
+
+=== Protocol Headers
+
+The _push_ protocol has no protocol-specific headers.
+    
+== SEE ALSO
+
+<<nng_push_open.3#,nng_push(3)>>,
+<<nng_pull.7#,nng_pull(7)>>,
+<<nng_req.7#,nng_req(7)>>,
+<<nng.7#,nng(7)>>