1 | /* Copyright Joyent, Inc. and other Node contributors. All rights reserved. |
2 | * |
3 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
4 | * of this software and associated documentation files (the "Software"), to |
5 | * deal in the Software without restriction, including without limitation the |
6 | * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
7 | * sell copies of the Software, and to permit persons to whom the Software is |
8 | * furnished to do so, subject to the following conditions: |
9 | * |
10 | * The above copyright notice and this permission notice shall be included in |
11 | * all copies or substantial portions of the Software. |
12 | * |
13 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
14 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
15 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
16 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
17 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
18 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
19 | * IN THE SOFTWARE. |
20 | */ |
21 | |
22 | #include "uv.h" |
23 | #include "task.h" |
24 | |
25 | #include <stdio.h> |
26 | #include <stdlib.h> |
27 | |
28 | static int completed_pingers = 0; |
29 | |
30 | #if defined(__CYGWIN__) || defined(__MSYS__) || defined(__MVS__) |
31 | #define NUM_PINGS 100 /* fewer pings to avoid timeout */ |
32 | #else |
33 | #define NUM_PINGS 1000 |
34 | #endif |
35 | |
36 | /* 64 bytes is enough for a pinger */ |
37 | #define BUFSIZE 10240 |
38 | |
39 | static char PING[] = "PING\n" ; |
40 | static int pinger_on_connect_count; |
41 | |
42 | |
43 | typedef struct { |
44 | int vectored_writes; |
45 | int pongs; |
46 | int state; |
47 | union { |
48 | uv_tcp_t tcp; |
49 | uv_pipe_t pipe; |
50 | } stream; |
51 | uv_connect_t connect_req; |
52 | char read_buffer[BUFSIZE]; |
53 | } pinger_t; |
54 | |
55 | |
56 | static void alloc_cb(uv_handle_t* handle, size_t size, uv_buf_t* buf) { |
57 | buf->base = malloc(size); |
58 | buf->len = size; |
59 | } |
60 | |
61 | |
62 | static void pinger_on_close(uv_handle_t* handle) { |
63 | pinger_t* pinger = (pinger_t*)handle->data; |
64 | |
65 | ASSERT(NUM_PINGS == pinger->pongs); |
66 | |
67 | free(pinger); |
68 | |
69 | completed_pingers++; |
70 | } |
71 | |
72 | |
73 | static void pinger_after_write(uv_write_t *req, int status) { |
74 | ASSERT(status == 0); |
75 | free(req); |
76 | } |
77 | |
78 | |
79 | static void pinger_write_ping(pinger_t* pinger) { |
80 | uv_write_t *req; |
81 | uv_buf_t bufs[sizeof PING - 1]; |
82 | int i, nbufs; |
83 | |
84 | if (!pinger->vectored_writes) { |
85 | /* Write a single buffer. */ |
86 | nbufs = 1; |
87 | bufs[0] = uv_buf_init(PING, sizeof PING - 1); |
88 | } else { |
89 | /* Write multiple buffers, each with one byte in them. */ |
90 | nbufs = sizeof PING - 1; |
91 | for (i = 0; i < nbufs; i++) { |
92 | bufs[i] = uv_buf_init(&PING[i], 1); |
93 | } |
94 | } |
95 | |
96 | req = malloc(sizeof(*req)); |
97 | if (uv_write(req, |
98 | (uv_stream_t*) &pinger->stream.tcp, |
99 | bufs, |
100 | nbufs, |
101 | pinger_after_write)) { |
102 | FATAL("uv_write failed" ); |
103 | } |
104 | |
105 | puts("PING" ); |
106 | } |
107 | |
108 | |
109 | static void pinger_read_cb(uv_stream_t* stream, |
110 | ssize_t nread, |
111 | const uv_buf_t* buf) { |
112 | ssize_t i; |
113 | pinger_t* pinger; |
114 | |
115 | pinger = (pinger_t*)stream->data; |
116 | |
117 | if (nread < 0) { |
118 | ASSERT(nread == UV_EOF); |
119 | |
120 | puts("got EOF" ); |
121 | free(buf->base); |
122 | |
123 | uv_close((uv_handle_t*)(&pinger->stream.tcp), pinger_on_close); |
124 | |
125 | return; |
126 | } |
127 | |
128 | /* Now we count the pings */ |
129 | for (i = 0; i < nread; i++) { |
130 | ASSERT(buf->base[i] == PING[pinger->state]); |
131 | pinger->state = (pinger->state + 1) % (sizeof(PING) - 1); |
132 | |
133 | if (pinger->state != 0) |
134 | continue; |
135 | |
136 | printf("PONG %d\n" , pinger->pongs); |
137 | pinger->pongs++; |
138 | |
139 | if (pinger->pongs < NUM_PINGS) { |
140 | pinger_write_ping(pinger); |
141 | } else { |
142 | uv_close((uv_handle_t*)(&pinger->stream.tcp), pinger_on_close); |
143 | break; |
144 | } |
145 | } |
146 | |
147 | free(buf->base); |
148 | } |
149 | |
150 | |
151 | static void pinger_on_connect(uv_connect_t *req, int status) { |
152 | pinger_t *pinger = (pinger_t*)req->handle->data; |
153 | |
154 | pinger_on_connect_count++; |
155 | |
156 | ASSERT(status == 0); |
157 | |
158 | ASSERT(1 == uv_is_readable(req->handle)); |
159 | ASSERT(1 == uv_is_writable(req->handle)); |
160 | ASSERT(0 == uv_is_closing((uv_handle_t *) req->handle)); |
161 | |
162 | pinger_write_ping(pinger); |
163 | |
164 | uv_read_start((uv_stream_t*)(req->handle), alloc_cb, pinger_read_cb); |
165 | } |
166 | |
167 | |
168 | /* same ping-pong test, but using IPv6 connection */ |
169 | static void tcp_pinger_v6_new(int vectored_writes) { |
170 | int r; |
171 | struct sockaddr_in6 server_addr; |
172 | pinger_t *pinger; |
173 | |
174 | |
175 | ASSERT(0 ==uv_ip6_addr("::1" , TEST_PORT, &server_addr)); |
176 | pinger = malloc(sizeof(*pinger)); |
177 | ASSERT(pinger != NULL); |
178 | pinger->vectored_writes = vectored_writes; |
179 | pinger->state = 0; |
180 | pinger->pongs = 0; |
181 | |
182 | /* Try to connect to the server and do NUM_PINGS ping-pongs. */ |
183 | r = uv_tcp_init(uv_default_loop(), &pinger->stream.tcp); |
184 | pinger->stream.tcp.data = pinger; |
185 | ASSERT(!r); |
186 | |
187 | /* We are never doing multiple reads/connects at a time anyway, so these |
188 | * handles can be pre-initialized. */ |
189 | r = uv_tcp_connect(&pinger->connect_req, |
190 | &pinger->stream.tcp, |
191 | (const struct sockaddr*) &server_addr, |
192 | pinger_on_connect); |
193 | ASSERT(!r); |
194 | |
195 | /* Synchronous connect callbacks are not allowed. */ |
196 | ASSERT(pinger_on_connect_count == 0); |
197 | } |
198 | |
199 | |
200 | static void tcp_pinger_new(int vectored_writes) { |
201 | int r; |
202 | struct sockaddr_in server_addr; |
203 | pinger_t *pinger; |
204 | |
205 | ASSERT(0 == uv_ip4_addr("127.0.0.1" , TEST_PORT, &server_addr)); |
206 | pinger = malloc(sizeof(*pinger)); |
207 | ASSERT(pinger != NULL); |
208 | pinger->vectored_writes = vectored_writes; |
209 | pinger->state = 0; |
210 | pinger->pongs = 0; |
211 | |
212 | /* Try to connect to the server and do NUM_PINGS ping-pongs. */ |
213 | r = uv_tcp_init(uv_default_loop(), &pinger->stream.tcp); |
214 | pinger->stream.tcp.data = pinger; |
215 | ASSERT(!r); |
216 | |
217 | /* We are never doing multiple reads/connects at a time anyway, so these |
218 | * handles can be pre-initialized. */ |
219 | r = uv_tcp_connect(&pinger->connect_req, |
220 | &pinger->stream.tcp, |
221 | (const struct sockaddr*) &server_addr, |
222 | pinger_on_connect); |
223 | ASSERT(!r); |
224 | |
225 | /* Synchronous connect callbacks are not allowed. */ |
226 | ASSERT(pinger_on_connect_count == 0); |
227 | } |
228 | |
229 | |
230 | static void pipe_pinger_new(int vectored_writes) { |
231 | int r; |
232 | pinger_t *pinger; |
233 | |
234 | pinger = (pinger_t*)malloc(sizeof(*pinger)); |
235 | ASSERT(pinger != NULL); |
236 | pinger->vectored_writes = vectored_writes; |
237 | pinger->state = 0; |
238 | pinger->pongs = 0; |
239 | |
240 | /* Try to connect to the server and do NUM_PINGS ping-pongs. */ |
241 | r = uv_pipe_init(uv_default_loop(), &pinger->stream.pipe, 0); |
242 | pinger->stream.pipe.data = pinger; |
243 | ASSERT(!r); |
244 | |
245 | /* We are never doing multiple reads/connects at a time anyway, so these |
246 | * handles can be pre-initialized. */ |
247 | uv_pipe_connect(&pinger->connect_req, &pinger->stream.pipe, TEST_PIPENAME, |
248 | pinger_on_connect); |
249 | |
250 | /* Synchronous connect callbacks are not allowed. */ |
251 | ASSERT(pinger_on_connect_count == 0); |
252 | } |
253 | |
254 | |
255 | static int run_ping_pong_test(void) { |
256 | uv_run(uv_default_loop(), UV_RUN_DEFAULT); |
257 | ASSERT(completed_pingers == 1); |
258 | |
259 | MAKE_VALGRIND_HAPPY(); |
260 | return 0; |
261 | } |
262 | |
263 | |
264 | TEST_IMPL(tcp_ping_pong) { |
265 | tcp_pinger_new(0); |
266 | return run_ping_pong_test(); |
267 | } |
268 | |
269 | |
270 | TEST_IMPL(tcp_ping_pong_vec) { |
271 | tcp_pinger_new(1); |
272 | return run_ping_pong_test(); |
273 | } |
274 | |
275 | |
276 | TEST_IMPL(tcp6_ping_pong) { |
277 | if (!can_ipv6()) |
278 | RETURN_SKIP("IPv6 not supported" ); |
279 | tcp_pinger_v6_new(0); |
280 | return run_ping_pong_test(); |
281 | } |
282 | |
283 | |
284 | TEST_IMPL(tcp6_ping_pong_vec) { |
285 | if (!can_ipv6()) |
286 | RETURN_SKIP("IPv6 not supported" ); |
287 | tcp_pinger_v6_new(1); |
288 | return run_ping_pong_test(); |
289 | } |
290 | |
291 | |
292 | TEST_IMPL(pipe_ping_pong) { |
293 | pipe_pinger_new(0); |
294 | return run_ping_pong_test(); |
295 | } |
296 | |
297 | |
298 | TEST_IMPL(pipe_ping_pong_vec) { |
299 | pipe_pinger_new(1); |
300 | return run_ping_pong_test(); |
301 | } |
302 | |