| 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 |
| -------- |
| linknanomsg:nn_bus[7] |
| linknanomsg:nn_pubsub[7] |
| linknanomsg:nn_reqrep[7] |
| linknanomsg:nn_pipeline[7] |
| linknanomsg:nn_pair[7] |
| linknanomsg:nanomsg[7] |
| |
| |
| AUTHORS |
| ------- |
| Martin Sustrik <sustrik@250bpm.com> |
| |
