Rather, non-interactive R does not run an event loop. The usual way around this is to use a pty, as R run from a pty is considered to be interactive.
(Whether a fifo and a named pipe are the same concept is moot: some OSes have one and not the other.) The plan is to use threads in due course to handle X11 events. On Tue, 22 Jan 2008, Parker Jones wrote: > > Hello, > > On a linux system I'm trying to send commands to R through a named pipe and > am *nearly* successful. I can send R commands and can plot graphs. The only > problem I have is getting the x11 display to refresh - it appears to hang > because of the pipe. > > The R server: > $ mkfifo R_pipe > $ R --no-save < R_pipe > > The R client: > $ cat>> R_pipe > > Now, I can send R commands down the pipe: > > Client side: > x <- seq(1,10) > x > > Server side: >> x <- seq(1:10) >> x > [1] 1 2 3 4 5 6 7 8 9 10 > > This is perfect. > > Now if I try to create a plot, e.g. plot(1:100), the server shows >> plot(1:100) > and the plot appears. However, if a window briefly obscures the graphical > output, the x11 device won't refresh the display. It would appear the pipe > is blocking the refresh. > > Can anyone else confirm this happens and any suggestions how to get the > display to refresh? > > Thanks in advance, > PJ -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
