nng_pull(7) =========== :doctype: manpage :manmanual: nng :mansource: nng :icons: font :source-highlighter: pygments :copyright: Copyright 2017 Garrett D'Amore \ Copyright 2017 Capitar IT Group BV \ This software 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_pull - pull protocol SYNOPSIS -------- [source,c] ---------- #include int nng_pull0_open(nng_socket *s); ---------- DESCRIPTION ----------- The _nng_pull_ protocol is one half of a pipeline pattern. The other half is the <> 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_pull0_open()` call creates a puller socket. This socket may be used to receive messages, but is unable to send them. Attempts to send messages will result in `NNG_ENOTSUP`. When receiving messages, the _nng_pull_ protocol accepts messages as they arrive from peers. If two peers both have a message ready, the order in which messages are handled is undefined. 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 _nng_pull_ protocol has no protocol-specific options. Protocol Headers ~~~~~~~~~~~~~~~~ The _nng_pull_ protocol has no protocol-specific headers. SEE ALSO -------- <> <> COPYRIGHT --------- Copyright 2017 mailto:garrett@damore.org[Garrett D'Amore] + Copyright 2017 mailto:info@capitar.com[Capitar IT Group BV] This document is supplied under the terms of the https://opensource.org/licenses/LICENSE.txt[MIT License].