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- 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#,nn_bus(7)>>
- <<nn_pubsub#,nn_pubsub(7)>>
- <<nn_reqrep#,nn_reqrep(7)>>
- <<nn_pipeline#,nn_pipeline(7)>>
- <<nn_pair#,nn_pair(7)>>
- <<nanomsg#,nanomsg(7)>>
- AUTHORS
- -------
- link:mailto:sustrik@250bpm.com[Martin Sustrik]
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