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/*
* 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) 2019 Elazar Leibovich
*/
#include <seastar/core/reactor.hh>
#include <seastar/core/seastar.hh>
#include <seastar/core/app-template.hh>
#include <seastar/core/print.hh>
#include <seastar/core/memory.hh>
#include <seastar/util/std-compat.hh>
#include <seastar/util/later.hh>
#include <seastar/testing/test_case.hh>
#include <seastar/core/abort_source.hh>
#include <seastar/core/sleep.hh>
#include <seastar/core/thread.hh>
#include <seastar/core/when_all.hh>
#include <seastar/net/posix-stack.hh>
using namespace seastar;
future<> handle_connection(connected_socket s) {
auto in = s.input();
auto out = s.output();
return do_with(std::move(in), std::move(out), [](auto& in, auto& out) {
return do_until([&in]() { return in.eof(); },
[&in, &out] {
return in.read().then([&out](auto buf) {
return out.write(std::move(buf)).then([&out]() { return out.close(); });
});
});
});
}
future<> echo_server_loop() {
return do_with(
server_socket(listen(make_ipv4_address({1234}), listen_options{.reuse_address = true})), [](auto& listener) {
// Connect asynchronously in background.
(void)connect(make_ipv4_address({"127.0.0.1", 1234})).then([](connected_socket&& socket) {
socket.shutdown_output();
});
return listener.accept().then(
[](accept_result ar) {
connected_socket s = std::move(ar.connection);
return handle_connection(std::move(s));
}).then([l = std::move(listener)]() mutable { return l.abort_accept(); });
});
}
class my_malloc_allocator : public std::pmr::memory_resource {
public:
int allocs;
int frees;
void* do_allocate(std::size_t bytes, std::size_t alignment) override { allocs++; return malloc(bytes); }
void do_deallocate(void *ptr, std::size_t bytes, std::size_t alignment) override { frees++; return free(ptr); }
virtual bool do_is_equal(const std::pmr::memory_resource& __other) const noexcept override { abort(); }
};
my_malloc_allocator malloc_allocator;
std::pmr::polymorphic_allocator<char> allocator{&malloc_allocator};
SEASTAR_TEST_CASE(socket_allocation_test) {
return echo_server_loop().finally([](){ engine().exit((malloc_allocator.allocs == malloc_allocator.frees) ? 0 : 1); });
}
SEASTAR_TEST_CASE(socket_skip_test) {
return seastar::async([&] {
listen_options lo;
lo.reuse_address = true;
server_socket ss = seastar::listen(ipv4_addr("127.0.0.1", 1234), lo);
abort_source as;
auto client = async([&as] {
connected_socket socket = connect(ipv4_addr("127.0.0.1", 1234)).get();
socket.output().write("abc").get();
socket.shutdown_output();
try {
sleep_abortable(std::chrono::seconds(10), as).get();
} catch (const sleep_aborted&) {
// expected
return;
}
assert(!"Skipping data from socket is likely stuck");
});
accept_result accepted = ss.accept().get();
input_stream<char> input = accepted.connection.input();
input.skip(16).get();
as.request_abort();
client.get();
});
}
SEASTAR_TEST_CASE(test_file_desc_fdinfo) {
auto fd = file_desc::socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
auto info = fd.fdinfo();
BOOST_REQUIRE_EQUAL(info.substr(0, 8), "socket:[");
return make_ready_future<>();
}
SEASTAR_TEST_CASE(socket_on_close_test) {
return seastar::async([&] {
listen_options lo;
lo.reuse_address = true;
server_socket ss = seastar::listen(ipv4_addr("127.0.0.1", 12345), lo);
bool server_closed = false;
bool client_notified = false;
auto client = seastar::async([&] {
connected_socket cln = connect(ipv4_addr("127.0.0.1", 12345)).get0();
auto close_wait_fiber = cln.wait_input_shutdown().then([&] {
BOOST_REQUIRE_EQUAL(server_closed, true);
client_notified = true;
fmt::print("Client: server closed\n");
});
auto out = cln.output();
auto in = cln.input();
while (!client_notified) {
fmt::print("Client: -> message\n");
out.write("hello").get();
out.flush().get();
seastar::sleep(std::chrono::milliseconds(250)).get();
fmt::print("Client: <- message\n");
auto buf = in.read().get0();
if (!buf) {
fmt::print("Client: server eof\n");
break;
}
seastar::sleep(std::chrono::milliseconds(250)).get();
}
out.close().get();
in.close().get();
close_wait_fiber.get();
});
auto server = seastar::async([&] {
accept_result acc = ss.accept().get0();
auto out = acc.connection.output();
auto in = acc.connection.input();
for (int i = 0; i < 3; i++) {
auto buf = in.read().get();
BOOST_REQUIRE_EQUAL(client_notified, false);
out.write(std::move(buf)).get();
out.flush().get();
fmt::print("Server: served\n");
}
server_closed = true;
fmt::print("Server: closing\n");
out.close().get();
in.close().get();
});
when_all(std::move(client), std::move(server)).discard_result().get();
});
}
SEASTAR_TEST_CASE(socket_on_close_local_shutdown_test) {
return seastar::async([&] {
listen_options lo;
lo.reuse_address = true;
server_socket ss = seastar::listen(ipv4_addr("127.0.0.1", 12345), lo);
bool server_closed = false;
bool client_notified = false;
auto client = seastar::async([&] {
connected_socket cln = connect(ipv4_addr("127.0.0.1", 12345)).get0();
auto close_wait_fiber = cln.wait_input_shutdown().then([&] {
BOOST_REQUIRE_EQUAL(server_closed, false);
client_notified = true;
fmt::print("Client: socket closed\n");
});
auto out = cln.output();
cln.shutdown_input();
auto fin = std::chrono::steady_clock::now() + std::chrono::seconds(1);
do {
seastar::yield().get();
} while (!client_notified && std::chrono::steady_clock::now() < fin);
BOOST_REQUIRE_EQUAL(client_notified, true);
out.write("hello").get();
out.flush().get();
out.close().get();
close_wait_fiber.get();
});
auto server = seastar::async([&] {
accept_result acc = ss.accept().get0();
auto in = acc.connection.input();
auto buf = in.read().get();
server_closed = true;
fmt::print("Server: closing\n");
in.close().get();
});
when_all(std::move(client), std::move(server)).discard_result().get();
});
}
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