Wait on Socket Connections
Waits for the first of several socket connections to become available.
socketSelect(socklist, write = FALSE, timeout = NULL)
- list of open socket connections
- logical. If
TRUEwait for corresponding socket to become available for writing; otherwise wait for it to become available for reading.
- numeric or
NULL. Time in seconds to wait for a socket to become available;
NULLmeans wait indefinitely.
The values in
write are recycled if necessary to make up a
logical vector the same length as
socklist. Socket connections
can appear more than once in
socklist; this can be useful if
you want to determine whether a socket is available for reading or
socklistindicating whether the corresponding socket connection is available for output or input, depending on the corresponding value of
## Not run: # ## test whether socket connection s is available for writing or reading # socketSelect(list(s, s), c(TRUE, FALSE), timeout = 0) # ## End(Not run)