1 //
2 // buffered_write_stream.cpp
3 // ~~~~~~~~~~~~~~~~~~~~~~~~~
4 //
5 // Copyright (c) 2003-2021 Christopher M. Kohlhoff (chris at kohlhoff dot com)
6 //
7 // Distributed under the Boost Software License, Version 1.0. (See accompanying
8 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
9 //
10
11 // Disable autolinking for unit tests.
12 #if !defined(BOOST_ALL_NO_LIB)
13 #define BOOST_ALL_NO_LIB 1
14 #endif // !defined(BOOST_ALL_NO_LIB)
15
16 // Test that header file is self-contained.
17 #include <boost/asio/buffered_write_stream.hpp>
18
19 #include <cstring>
20 #include "archetypes/async_result.hpp"
21 #include <boost/asio/buffer.hpp>
22 #include <boost/asio/io_context.hpp>
23 #include <boost/asio/ip/tcp.hpp>
24 #include <boost/system/system_error.hpp>
25 #include "unit_test.hpp"
26
27 #if defined(BOOST_ASIO_HAS_BOOST_ARRAY)
28 # include <boost/array.hpp>
29 #else // defined(BOOST_ASIO_HAS_BOOST_ARRAY)
30 # include <array>
31 #endif // defined(BOOST_ASIO_HAS_BOOST_ARRAY)
32
33 #if defined(BOOST_ASIO_HAS_BOOST_BIND)
34 # include <boost/bind/bind.hpp>
35 #else // defined(BOOST_ASIO_HAS_BOOST_BIND)
36 # include <functional>
37 #endif // defined(BOOST_ASIO_HAS_BOOST_BIND)
38
39 typedef boost::asio::buffered_write_stream<
40 boost::asio::ip::tcp::socket> stream_type;
41
write_some_handler(const boost::system::error_code &,std::size_t)42 void write_some_handler(const boost::system::error_code&, std::size_t)
43 {
44 }
45
flush_handler(const boost::system::error_code &,std::size_t)46 void flush_handler(const boost::system::error_code&, std::size_t)
47 {
48 }
49
read_some_handler(const boost::system::error_code &,std::size_t)50 void read_some_handler(const boost::system::error_code&, std::size_t)
51 {
52 }
53
test_compile()54 void test_compile()
55 {
56 #if defined(BOOST_ASIO_HAS_BOOST_ARRAY)
57 using boost::array;
58 #else // defined(BOOST_ASIO_HAS_BOOST_ARRAY)
59 using std::array;
60 #endif // defined(BOOST_ASIO_HAS_BOOST_ARRAY)
61
62 using namespace boost::asio;
63
64 try
65 {
66 io_context ioc;
67 char mutable_char_buffer[128] = "";
68 const char const_char_buffer[128] = "";
69 array<boost::asio::mutable_buffer, 2> mutable_buffers = {{
70 boost::asio::buffer(mutable_char_buffer, 10),
71 boost::asio::buffer(mutable_char_buffer + 10, 10) }};
72 array<boost::asio::const_buffer, 2> const_buffers = {{
73 boost::asio::buffer(const_char_buffer, 10),
74 boost::asio::buffer(const_char_buffer + 10, 10) }};
75 archetypes::lazy_handler lazy;
76 boost::system::error_code ec;
77
78 stream_type stream1(ioc);
79 stream_type stream2(ioc, 1024);
80
81 stream_type::executor_type ex = stream1.get_executor();
82 (void)ex;
83
84 stream_type::lowest_layer_type& lowest_layer = stream1.lowest_layer();
85 (void)lowest_layer;
86
87 stream1.write_some(buffer(mutable_char_buffer));
88 stream1.write_some(buffer(const_char_buffer));
89 stream1.write_some(mutable_buffers);
90 stream1.write_some(const_buffers);
91 stream1.write_some(null_buffers());
92 stream1.write_some(buffer(mutable_char_buffer), ec);
93 stream1.write_some(buffer(const_char_buffer), ec);
94 stream1.write_some(mutable_buffers, ec);
95 stream1.write_some(const_buffers, ec);
96 stream1.write_some(null_buffers(), ec);
97
98 stream1.async_write_some(buffer(mutable_char_buffer), &write_some_handler);
99 stream1.async_write_some(buffer(const_char_buffer), &write_some_handler);
100 stream1.async_write_some(mutable_buffers, &write_some_handler);
101 stream1.async_write_some(const_buffers, &write_some_handler);
102 stream1.async_write_some(null_buffers(), &write_some_handler);
103 int i1 = stream1.async_write_some(buffer(mutable_char_buffer), lazy);
104 (void)i1;
105 int i2 = stream1.async_write_some(buffer(const_char_buffer), lazy);
106 (void)i2;
107 int i3 = stream1.async_write_some(mutable_buffers, lazy);
108 (void)i3;
109 int i4 = stream1.async_write_some(const_buffers, lazy);
110 (void)i4;
111 int i5 = stream1.async_write_some(null_buffers(), lazy);
112 (void)i5;
113
114 stream1.flush();
115 stream1.flush(ec);
116
117 stream1.async_flush(&flush_handler);
118 int i6 = stream1.async_flush(lazy);
119 (void)i6;
120
121 stream1.read_some(buffer(mutable_char_buffer));
122 stream1.read_some(mutable_buffers);
123 stream1.read_some(null_buffers());
124 stream1.read_some(buffer(mutable_char_buffer), ec);
125 stream1.read_some(mutable_buffers, ec);
126 stream1.read_some(null_buffers(), ec);
127
128 stream1.async_read_some(buffer(mutable_char_buffer), &read_some_handler);
129 stream1.async_read_some(mutable_buffers, &read_some_handler);
130 stream1.async_read_some(null_buffers(), &read_some_handler);
131 int i7 = stream1.async_read_some(buffer(mutable_char_buffer), lazy);
132 (void)i7;
133 int i8 = stream1.async_read_some(mutable_buffers, lazy);
134 (void)i8;
135 int i9 = stream1.async_read_some(null_buffers(), lazy);
136 (void)i9;
137 }
138 catch (std::exception&)
139 {
140 }
141 }
142
test_sync_operations()143 void test_sync_operations()
144 {
145 using namespace std; // For memcmp.
146
147 boost::asio::io_context io_context;
148
149 boost::asio::ip::tcp::acceptor acceptor(io_context,
150 boost::asio::ip::tcp::endpoint(boost::asio::ip::tcp::v4(), 0));
151 boost::asio::ip::tcp::endpoint server_endpoint = acceptor.local_endpoint();
152 server_endpoint.address(boost::asio::ip::address_v4::loopback());
153
154 stream_type client_socket(io_context);
155 client_socket.lowest_layer().connect(server_endpoint);
156
157 stream_type server_socket(io_context);
158 acceptor.accept(server_socket.lowest_layer());
159
160 const char write_data[]
161 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
162 const boost::asio::const_buffer write_buf = boost::asio::buffer(write_data);
163
164 std::size_t bytes_written = 0;
165 while (bytes_written < sizeof(write_data))
166 {
167 bytes_written += client_socket.write_some(
168 boost::asio::buffer(write_buf + bytes_written));
169 client_socket.flush();
170 }
171
172 char read_data[sizeof(write_data)];
173 const boost::asio::mutable_buffer read_buf = boost::asio::buffer(read_data);
174
175 std::size_t bytes_read = 0;
176 while (bytes_read < sizeof(read_data))
177 {
178 bytes_read += server_socket.read_some(
179 boost::asio::buffer(read_buf + bytes_read));
180 }
181
182 BOOST_ASIO_CHECK(bytes_written == sizeof(write_data));
183 BOOST_ASIO_CHECK(bytes_read == sizeof(read_data));
184 BOOST_ASIO_CHECK(memcmp(write_data, read_data, sizeof(write_data)) == 0);
185
186 bytes_written = 0;
187 while (bytes_written < sizeof(write_data))
188 {
189 bytes_written += server_socket.write_some(
190 boost::asio::buffer(write_buf + bytes_written));
191 server_socket.flush();
192 }
193
194 bytes_read = 0;
195 while (bytes_read < sizeof(read_data))
196 {
197 bytes_read += client_socket.read_some(
198 boost::asio::buffer(read_buf + bytes_read));
199 }
200
201 BOOST_ASIO_CHECK(bytes_written == sizeof(write_data));
202 BOOST_ASIO_CHECK(bytes_read == sizeof(read_data));
203 BOOST_ASIO_CHECK(memcmp(write_data, read_data, sizeof(write_data)) == 0);
204
205 server_socket.close();
206 boost::system::error_code error;
207 bytes_read = client_socket.read_some(
208 boost::asio::buffer(read_buf), error);
209
210 BOOST_ASIO_CHECK(bytes_read == 0);
211 BOOST_ASIO_CHECK(error == boost::asio::error::eof);
212
213 client_socket.close(error);
214 }
215
handle_accept(const boost::system::error_code & e)216 void handle_accept(const boost::system::error_code& e)
217 {
218 BOOST_ASIO_CHECK(!e);
219 }
220
handle_write(const boost::system::error_code & e,std::size_t bytes_transferred,std::size_t * total_bytes_written)221 void handle_write(const boost::system::error_code& e,
222 std::size_t bytes_transferred,
223 std::size_t* total_bytes_written)
224 {
225 BOOST_ASIO_CHECK(!e);
226 if (e)
227 throw boost::system::system_error(e); // Terminate test.
228 *total_bytes_written += bytes_transferred;
229 }
230
handle_flush(const boost::system::error_code & e)231 void handle_flush(const boost::system::error_code& e)
232 {
233 BOOST_ASIO_CHECK(!e);
234 }
235
handle_read(const boost::system::error_code & e,std::size_t bytes_transferred,std::size_t * total_bytes_read)236 void handle_read(const boost::system::error_code& e,
237 std::size_t bytes_transferred,
238 std::size_t* total_bytes_read)
239 {
240 BOOST_ASIO_CHECK(!e);
241 if (e)
242 throw boost::system::system_error(e); // Terminate test.
243 *total_bytes_read += bytes_transferred;
244 }
245
handle_read_eof(const boost::system::error_code & e,std::size_t bytes_transferred)246 void handle_read_eof(const boost::system::error_code& e,
247 std::size_t bytes_transferred)
248 {
249 BOOST_ASIO_CHECK(e == boost::asio::error::eof);
250 BOOST_ASIO_CHECK(bytes_transferred == 0);
251 }
252
test_async_operations()253 void test_async_operations()
254 {
255 using namespace std; // For memcmp.
256
257 #if defined(BOOST_ASIO_HAS_BOOST_BIND)
258 namespace bindns = boost;
259 #else // defined(BOOST_ASIO_HAS_BOOST_BIND)
260 namespace bindns = std;
261 #endif // defined(BOOST_ASIO_HAS_BOOST_BIND)
262 using bindns::placeholders::_1;
263 using bindns::placeholders::_2;
264
265 boost::asio::io_context io_context;
266
267 boost::asio::ip::tcp::acceptor acceptor(io_context,
268 boost::asio::ip::tcp::endpoint(boost::asio::ip::tcp::v4(), 0));
269 boost::asio::ip::tcp::endpoint server_endpoint = acceptor.local_endpoint();
270 server_endpoint.address(boost::asio::ip::address_v4::loopback());
271
272 stream_type client_socket(io_context);
273 client_socket.lowest_layer().connect(server_endpoint);
274
275 stream_type server_socket(io_context);
276 acceptor.async_accept(server_socket.lowest_layer(), &handle_accept);
277 io_context.run();
278 io_context.restart();
279
280 const char write_data[]
281 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
282 const boost::asio::const_buffer write_buf = boost::asio::buffer(write_data);
283
284 std::size_t bytes_written = 0;
285 while (bytes_written < sizeof(write_data))
286 {
287 client_socket.async_write_some(
288 boost::asio::buffer(write_buf + bytes_written),
289 bindns::bind(handle_write, _1, _2, &bytes_written));
290 io_context.run();
291 io_context.restart();
292 client_socket.async_flush(
293 bindns::bind(handle_flush, _1));
294 io_context.run();
295 io_context.restart();
296 }
297
298 char read_data[sizeof(write_data)];
299 const boost::asio::mutable_buffer read_buf = boost::asio::buffer(read_data);
300
301 std::size_t bytes_read = 0;
302 while (bytes_read < sizeof(read_data))
303 {
304 server_socket.async_read_some(
305 boost::asio::buffer(read_buf + bytes_read),
306 bindns::bind(handle_read, _1, _2, &bytes_read));
307 io_context.run();
308 io_context.restart();
309 }
310
311 BOOST_ASIO_CHECK(bytes_written == sizeof(write_data));
312 BOOST_ASIO_CHECK(bytes_read == sizeof(read_data));
313 BOOST_ASIO_CHECK(memcmp(write_data, read_data, sizeof(write_data)) == 0);
314
315 bytes_written = 0;
316 while (bytes_written < sizeof(write_data))
317 {
318 server_socket.async_write_some(
319 boost::asio::buffer(write_buf + bytes_written),
320 bindns::bind(handle_write, _1, _2, &bytes_written));
321 io_context.run();
322 io_context.restart();
323 server_socket.async_flush(
324 bindns::bind(handle_flush, _1));
325 io_context.run();
326 io_context.restart();
327 }
328
329 bytes_read = 0;
330 while (bytes_read < sizeof(read_data))
331 {
332 client_socket.async_read_some(
333 boost::asio::buffer(read_buf + bytes_read),
334 bindns::bind(handle_read, _1, _2, &bytes_read));
335 io_context.run();
336 io_context.restart();
337 }
338
339 BOOST_ASIO_CHECK(bytes_written == sizeof(write_data));
340 BOOST_ASIO_CHECK(bytes_read == sizeof(read_data));
341 BOOST_ASIO_CHECK(memcmp(write_data, read_data, sizeof(write_data)) == 0);
342
343 server_socket.close();
344 client_socket.async_read_some(boost::asio::buffer(read_buf), handle_read_eof);
345 }
346
347 BOOST_ASIO_TEST_SUITE
348 (
349 "buffered_write_stream",
350 BOOST_ASIO_TEST_CASE(test_compile)
351 BOOST_ASIO_TEST_CASE(test_sync_operations)
352 BOOST_ASIO_TEST_CASE(test_async_operations)
353 )
354