1 files changed, 75 insertions, 0 deletions
diff --git a/src/seastar/demos/tcp_demo.cc b/src/seastar/demos/tcp_demo.cc
new file mode 100644
index 000000000..5f2c9f3fe
--- /dev/null
+++ b/src/seastar/demos/tcp_demo.cc
@@ -0,0 +1,75 @@
+/*
+ * This file is open source software, licensed to you under the terms
+ * of the Apache License, Version 2.0 (the "License").  See the NOTICE file
+ * distributed with this work for additional information regarding copyright
+ * ownership.  You may not use this file except in compliance with the License.
+ *
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+/*
+ * Copyright (C) 2014 Cloudius Systems, Ltd.
+ */
+
+#include <seastar/net/ip.hh>
+#include <seastar/net/virtio.hh>
+#include <seastar/net/tcp.hh>
+#include <seastar/core/reactor.hh>
+#include <fmt/printf.h>
+
+using namespace seastar;
+using namespace net;
+
+struct tcp_test {
+    ipv4& inet;
+    using tcp = net::tcp<ipv4_traits>;
+    tcp::listener _listener;
+    struct connection {
+        tcp::connection tcp_conn;
+        explicit connection(tcp::connection tc) : tcp_conn(std::move(tc)) {}
+        void run() {
+            // Read packets and echo back in the background.
+            (void)tcp_conn.wait_for_data().then([this] {
+                auto p = tcp_conn.read();
+                if (!p.len()) {
+                    tcp_conn.close_write();
+                    return;
+                }
+                fmt::print("read {:d} bytes\n", p.len());
+                (void)tcp_conn.send(std::move(p));
+                run();
+            });
+        }
+    };
+    tcp_test(ipv4& inet) : inet(inet), _listener(inet.get_tcp().listen(10000)) {}
+    void run() {
+        // Run all connections in the background.
+        (void)_listener.accept().then([this] (tcp::connection conn) {
+            (new connection(std::move(conn)))->run();
+            run();
+        });
+    }
+};
+
+int main(int ac, char** av) {
+    boost::program_options::variables_map opts;
+    opts.insert(std::make_pair("tap-device", boost::program_options::variable_value(std::string("tap0"), false)));
+
+    auto vnet = create_virtio_net_device(opts);
+    interface netif(std::move(vnet));
+    ipv4 inet(&netif);
+    inet.set_host_address(ipv4_address("192.168.122.2"));
+    tcp_test tt(inet);
+    (void)engine().when_started().then([&tt] { tt.run(); });
+    engine().run();
+}
+
+