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# socket example - server side
# usage: ruby svr.rb
# this server might be blocked by an ill-behaved client.
# see tsvr.rb which is safe from client blocking.
require "socket"
gs = TCPServer.open(0)
addr = gs.addr
addr.shift
printf("server is on %s\n", addr.join(":"))
socks = [gs]
loop do
nsock = select(socks);
next if nsock == nil
for s in nsock[0]
if s == gs
ns = s.accept
socks.push(ns)
print(s, " is accepted\n")
else
if s.eof?
print(s, " is gone\n")
s.close
socks.delete(s)
# single thread gets may block whole service
elsif str = s.gets
s.write(str)
end
end
end
end
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