nng_pull - pull protocol
NAME SYNOPSIS DESCRIPTION Socket Operations Protocol Versions Protocol Options Protocol Headers SEE ALSONAME
nng_pull − pull protocol
SYNOPSIS
#include <nng/protocol/pipeline0/pull.h>
DESCRIPTION
The pull protocol is one half of a pipeline pattern. The other half is the push 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() functions create 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 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 pull protocol has no protocol−specific options.
Protocol Headers
The pull protocol has no protocol−specific headers.
SEE ALSO
nng_pull_open(3), nng_push(7), nng(7),