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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:45:59 +0000 |
commit | 19fcec84d8d7d21e796c7624e521b60d28ee21ed (patch) | |
tree | 42d26aa27d1e3f7c0b8bd3fd14e7d7082f5008dc /src/seastar/demos/tcp_demo.cc | |
parent | Initial commit. (diff) | |
download | ceph-19fcec84d8d7d21e796c7624e521b60d28ee21ed.tar.xz ceph-19fcec84d8d7d21e796c7624e521b60d28ee21ed.zip |
Adding upstream version 16.2.11+ds.upstream/16.2.11+dsupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/seastar/demos/tcp_demo.cc')
-rw-r--r-- | src/seastar/demos/tcp_demo.cc | 75 |
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(); +} + + |