added tag v1_9_0_4

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_9_0_4@18845 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 34 insertions, 0 deletions

diff --git a/trunk/sample/svr.rb b/trunk/sample/svr.rb
new file mode 100644
index 0000000000..11cfc5fbfe
--- /dev/null
+++ b/trunk/sample/svr.rb
@@ -0,0 +1,34 @@
+# 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