- added support for multithreaded daemons

[helm.git] / helm / DEVEL / ocaml-http / examples / threads.ml

diff --git a/helm/DEVEL/ocaml-http/examples/threads.ml b/helm/DEVEL/ocaml-http/examples/threads.ml
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+++ b/helm/DEVEL/ocaml-http/examples/threads.ml
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+
+(*
+  OCaml HTTP - do it yourself (fully OCaml) HTTP daemon
+
+  Copyright (C) <2002> Stefano Zacchiroli <zack@cs.unibo.it>
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*)
+
+let m = Mutex.create () in
+let i = ref 10 in
+let dump_i outchan =
+  Http_daemon.respond ~body:(Printf.sprintf "i = %d\n" !i) outchan
+in
+let callback req outchan =
+  match req#path with
+  | "/incr" ->
+      Mutex.lock m;
+      incr i;
+      dump_i outchan;
+      Unix.sleep 5;
+      Mutex.unlock m
+  | "/decr" ->
+      Mutex.lock m;
+      decr i;
+      dump_i outchan;
+      Unix.sleep 5;
+      Mutex.unlock m
+  | "/get" ->
+      Mutex.lock m;
+      dump_i outchan;
+      Mutex.unlock m
+  | bad_request -> Http_daemon.respond_error outchan
+in
+Http_daemon.start' ~port:9999 ~mode:`Thread callback