[Rd] Sys.sleep waits forever + workaround (PR#8678)
ripley@stats.ox.ac.uk
ripley at stats.ox.ac.uk
Mon Mar 13 11:10:38 CET 2006
On Mon, 13 Mar 2006, westfeld at inf.tu-dresden.de wrote:
> When I tried to schedule a calculation for the next day (waiting several
> 10000 seconds), I noticed that Sys.sleep does never return (R version
> 2.1.0 on Linux). From the C code I expect that the maximum number of
> seconds is about 2000 (2^31/1e6), which is system-dependent.
Actually, it is not: is always (2^31-1)/1e6.
This is easy to fix at C level, and I have done so.
>
> ##Sys.sleep <- function(time)
> ## invisible(.Internal(Sys.sleep(time)))
>
> Sys.sleep <- function(time) {
> nloops <- time%/%1000
> while (nloops>0) {
> nloops <- nloops-1
> .Internal(Sys.sleep(1000))
> }
> invisible(.Internal(Sys.sleep(time%%1000)))
> }
>
>
>
--
Brian D. Ripley, ripley at stats.ox.ac.uk
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
More information about the R-devel
mailing list