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NN_SURVEY(7)                    nanomsg manual                    NN_SURVEY(7)

NAME
       nn_survey - survey scalability protocol

SYNOPSIS
       #include <nanomsg/nn.h>

       #include <nanomsg/survey.h>

DESCRIPTION
       Allows to broadcast a survey to multiple locations and gather the
       responses.

   Socket Types
       NN_SURVEYOR
           Used to send the survey. The survey is delivered to all the
           connected respondents. Once the query is sent, the socket can be
           used to receive the responses. When the survey deadline expires,
           receive will return ETIMEDOUT error.

       NN_RESPONDENT
           Use to respond to the survey. Survey is received using receive
           function, response is sent using send function. This socket can be
           connected to at most one peer.

   Socket Options
       NN_SURVEYOR_DEADLINE
           Specifies how long to wait for responses to the survey. Once the
           deadline expires, receive function will return ETIMEDOUT error and
           all subsequent responses to the survey will be silently dropped.
           The deadline is measured in milliseconds. Option type is int.
           Default value is 1000 (1 second).

SEE ALSO
       nn_bus(7) nn_pubsub(7) nn_reqrep(7) nn_pipeline(7) nn_pair(7)
       nanomsg(7)

AUTHORS
       Martin Sustrik <sustrik@250bpm.com[1]>

NOTES
        1. sustrik@250bpm.com
           mailto:sustrik@250bpm.com

nanomsg Unknown                   12/23/2015                      NN_SURVEY(7)