Adding upstream version 14.2.21.upstream/14.2.21upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 87 insertions, 0 deletions

diff --git a/src/seastar/demos/udp_client_demo.cc b/src/seastar/demos/udp_client_demo.cc
new file mode 100644
index 00000000..cfd23fc0
--- /dev/null
+++ b/src/seastar/demos/udp_client_demo.cc
@@ -0,0 +1,87 @@
+/*
+ * 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/core/app-template.hh>
+#include <seastar/core/future-util.hh>
+#include <seastar/core/reactor.hh>
+#include <seastar/net/api.hh>
+#include <iostream>
+
+using namespace seastar;
+using namespace net;
+using namespace std::chrono_literals;
+
+class client {
+private:
+    udp_channel _chan;
+    uint64_t n_sent {};
+    uint64_t n_received {};
+    uint64_t n_failed {};
+    timer<> _stats_timer;
+public:
+    void start(ipv4_addr server_addr) {
+        std::cout << "Sending to " << server_addr << std::endl;
+
+        _chan = engine().net().make_udp_channel();
+
+        _stats_timer.set_callback([this] {
+            std::cout << "Out: " << n_sent << " pps, \t";
+            std::cout << "Err: " << n_failed << " pps, \t";
+            std::cout << "In: " << n_received << " pps" << std::endl;
+            n_sent = 0;
+            n_received = 0;
+            n_failed = 0;
+        });
+        _stats_timer.arm_periodic(1s);
+
+        keep_doing([this, server_addr] {
+            return _chan.send(server_addr, "hello!\n")
+                .then_wrapped([this] (auto&& f) {
+                    try {
+                        f.get();
+                        n_sent++;
+                    } catch (...) {
+                        n_failed++;
+                    }
+                });
+        });
+
+        keep_doing([this] {
+            return _chan.receive().then([this] (auto) {
+                n_received++;
+            });
+        });
+    }
+};
+
+namespace bpo = boost::program_options;
+
+int main(int ac, char ** av) {
+    client _client;
+    app_template app;
+    app.add_options()
+        ("server", bpo::value<std::string>(), "Server address")
+        ;
+    return app.run_deprecated(ac, av, [&_client, &app] {
+        auto&& config = app.configuration();
+        _client.start(config["server"].as<std::string>());
+    });
+}