Send data to one or more clients through a socket
Source:R/send_socket_clients.R
send_socket_clients.RdThe text is send to one or more clients of the R socket server currently connected.
send_socket_clients(text, sockets = "all", server_port = 8888)
sendSocketClients(text, sockets = "all", server_port = 8888)Arguments
- text
the text to send to the client(s).
- sockets
the Tcl name of the client(s) socket(s) currently connected (
sockXXX), or"all"(by default) to send the same text to all connected clients.- server_port
the port of the server considered.
Examples
if (FALSE) {
# Start an R process (R#1) and make it a server
library(svSocket)
server_port <- 8888 # Port 8888 by default, but you can change it
start_socket_server(port = server_port)
# Start a second R process (R#2) and run this code in it (the R client):
library(svSocket)
# Connect with the R socket server
con <- socketConnection(host = "localhost", port = 8888, blocking = FALSE)
# Now, go back to the server R#1
get_socket_clients() # You should have one client registered
# Send something to all clients from R#1
send_socket_clients("Hi there!")
# Switch back to client R#2
# Since the connection is not blocking, you have to read lines actively
readLines(con)
# Note the final empty string indicating there is no more data
close(con) # Once done...
# Switch to the R#1 server and close the server
stop_socket_server(port = server_port)
}