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diff --git a/doc/bus.5 b/doc/bus.5 new file mode 100644 index 0000000..f98c996 --- /dev/null +++ b/doc/bus.5 @@ -0,0 +1,34 @@ +.TH BUS 5 BUS-%VERSION% +.SH NAME +bus - A simple daemonless system for broadcasting messages locally +.SH DESCRIPTION +\fBbus\fP is a simple interprocess communication system for broadcasting messages to other processes on the same machine. \fBbus\fP does not use any daemon. Instead all communication and synchronisation is managed using System V (XSI) semaphores and System V (XSI) shared memory. + +The command \fBbus create\fP can be used to new buses. By convention, buses should be stored in \fIXDG_RUNTIME_DIR/bus\fP, this is what \fBbus create\fP does if no pathname is given. The pathname of the bus should be tracked using \fIBUS_X\fP, where \fIX\fP is replaced with either: +.TP +.IR GENERIC +For the bus used in generic cases. That is all but the cases of the buses listed below. +.TP +.IR AUDIO +For the bus used in with the audio subsystem is involved. +.TP +.IR VIDEO +For the bus used in with the video subsystem is involved. +.TP +.IR INPUT +For the bus used in with the input subsystem is involved. +.TP +.IR FILES +For the bus used in with the storage subsystem is involved. +.SH + +Messages broadcasted on a bus cannot be longer than 2047 bytes, excluding NUL-termination. Message should be encoded in UTF-8, and most not contain the NUL-character. + +Broadcasted message should start with the process ID whence the message originated, followed by a single regular space. +.SH SEE ALSO +bus(1), libbus(7) +.SH AUTHORS +See the LICENSE file for the authors. +.SH BUGS +Please report them. + |