diff options
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/man/nng_bus.7.adoc | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/docs/man/nng_bus.7.adoc b/docs/man/nng_bus.7.adoc index bb993f7c..98367c3d 100644 --- a/docs/man/nng_bus.7.adoc +++ b/docs/man/nng_bus.7.adoc @@ -64,8 +64,19 @@ The _bus_ protocol has no protocol-specific options. === Protocol Headers -The _bus_ protocol has no protocol-specific headers. - +When using a "`<<nng.7#raw_mode,raw>>`" _bus_ socket, received messages will +contain the incoming <<nng_pipe.5#,pipe>> ID as the sole element in the header. +If a message containing such a header is sent using a raw _bus_ socket, then, +the message will be delivered to all connected pipes _except_ the one +identified in the header. +This behavior is intended for use with <<nng_device.3#device,device>> +configurations consisting of just a single socket. +Such configurations are useful in the creation of rebroadcasters, and this +capaibility prevents a message from being routed back to its source. +If no header is present, then a message is sent to all connected pipes. + +When using "`cooked`" _bus_ sockets, no message headers are present. + == SEE ALSO <<nng_bus_open.3#,nng_bus_open(3)>>, |