adds print server example

SConstruct

@@ -200,6 +200,9 @@ subprotocol_server = SConscript('#/examples/subprotocol_server/SConscript',varia
 # iostream_server
 iostream_server = SConscript('#/examples/iostream_server/SConscript',variant_dir = builddir + 'iostream_server',duplicate = 0)
 
+# print_server
+print_server = SConscript('#/examples/print_server/SConscript',variant_dir = builddir + 'print_server',duplicate = 0)
+
 #
 #wsperf = SConscript('#/examples/wsperf/SConscript',
 #                    variant_dir = builddir + 'wsperf',

examples/print_server/SConscript

@@ -0,0 +1,23 @@
+## Print server example
+##
+
+Import('env')
+Import('env_cpp11')
+Import('boostlibs')
+Import('platform_libs')
+Import('polyfill_libs')
+
+env = env.Clone ()
+env_cpp11 = env_cpp11.Clone ()
+
+prgs = []
+
+# if a C++11 environment is avaliable build using that, otherwise use boost
+if env_cpp11.has_key('WSPP_CPP11_ENABLED'):
+   ALL_LIBS = boostlibs(['system'],env_cpp11) + [platform_libs] + [polyfill_libs]
+   prgs += env_cpp11.Program('print_server', ["print_server.cpp"], LIBS = ALL_LIBS)
+else:
+   ALL_LIBS = boostlibs(['system','regex'],env) + [platform_libs] + [polyfill_libs]
+   prgs += env.Program('print_server', ["print_server.cpp"], LIBS = ALL_LIBS)
+
+Return('prgs')

examples/print_server/print_server.cpp

@@ -0,0 +1,22 @@
+#include <iostream>
+
+#include <websocketpp/config/asio_no_tls.hpp>
+#include <websocketpp/server.hpp>
+
+typedef websocketpp::server<websocketpp::config::asio> server;
+
+void on_message(websocketpp::connection_hdl hdl, server::message_ptr msg) {
+        std::cout << msg->get_payload() << std::endl;
+}
+
+int main() {
+    server print_server;
+
+    print_server.set_message_handler(&on_message);
+
+    print_server.init_asio();
+    print_server.listen(9002);
+    print_server.start_accept();
+
+    print_server.run();
+}