1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
|
/* Copyright libuv project contributors. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#if !defined(_WIN32)
#include "uv.h"
#include "task.h"
#include <errno.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <string.h>
static uv_tcp_t server_handle;
static uv_tcp_t client_handle;
static uv_tcp_t peer_handle;
static uv_poll_t poll_req[2];
static uv_idle_t idle;
static uv_os_fd_t client_fd;
static uv_os_fd_t server_fd;
static int ticks;
static const int kMaxTicks = 10;
static int cli_pr_check = 0;
static int cli_rd_check = 0;
static int srv_rd_check = 0;
static int got_eagain(void) {
return errno == EAGAIN
|| errno == EINPROGRESS
#ifdef EWOULDBLOCK
|| errno == EWOULDBLOCK
#endif
;
}
static void idle_cb(uv_idle_t* idle) {
uv_sleep(100);
if (++ticks < kMaxTicks)
return;
uv_poll_stop(&poll_req[0]);
uv_poll_stop(&poll_req[1]);
uv_close((uv_handle_t*) &server_handle, NULL);
uv_close((uv_handle_t*) &client_handle, NULL);
uv_close((uv_handle_t*) &peer_handle, NULL);
uv_close((uv_handle_t*) idle, NULL);
}
static void poll_cb(uv_poll_t* handle, int status, int events) {
char buffer[5];
int n;
int fd;
ASSERT(0 == uv_fileno((uv_handle_t*)handle, &fd));
memset(buffer, 0, 5);
if (events & UV_PRIORITIZED) {
do
n = recv(client_fd, &buffer, 5, MSG_OOB);
while (n == -1 && errno == EINTR);
ASSERT(n >= 0 || errno != EINVAL);
cli_pr_check = 1;
ASSERT(0 == uv_poll_stop(&poll_req[0]));
ASSERT(0 == uv_poll_start(&poll_req[0],
UV_READABLE | UV_WRITABLE,
poll_cb));
}
if (events & UV_READABLE) {
if (fd == client_fd) {
do
n = recv(client_fd, &buffer, 5, 0);
while (n == -1 && errno == EINTR);
ASSERT(n >= 0 || errno != EINVAL);
if (cli_rd_check == 1) {
ASSERT(strncmp(buffer, "world", n) == 0);
ASSERT(5 == n);
cli_rd_check = 2;
}
if (cli_rd_check == 0) {
ASSERT(n == 4);
ASSERT(strncmp(buffer, "hello", n) == 0);
cli_rd_check = 1;
do {
do
n = recv(server_fd, &buffer, 5, 0);
while (n == -1 && errno == EINTR);
if (n > 0) {
ASSERT(n == 5);
ASSERT(strncmp(buffer, "world", n) == 0);
cli_rd_check = 2;
}
} while (n > 0);
ASSERT(got_eagain());
}
}
if (fd == server_fd) {
do
n = recv(server_fd, &buffer, 3, 0);
while (n == -1 && errno == EINTR);
ASSERT(n >= 0 || errno != EINVAL);
ASSERT(3 == n);
ASSERT(strncmp(buffer, "foo", n) == 0);
srv_rd_check = 1;
uv_poll_stop(&poll_req[1]);
}
}
if (events & UV_WRITABLE) {
do {
n = send(client_fd, "foo", 3, 0);
} while (n < 0 && errno == EINTR);
ASSERT(3 == n);
}
}
static void connection_cb(uv_stream_t* handle, int status) {
int r;
ASSERT(0 == status);
ASSERT(0 == uv_accept(handle, (uv_stream_t*) &peer_handle));
ASSERT(0 == uv_fileno((uv_handle_t*) &peer_handle, &server_fd));
ASSERT(0 == uv_poll_init_socket(uv_default_loop(), &poll_req[0], client_fd));
ASSERT(0 == uv_poll_init_socket(uv_default_loop(), &poll_req[1], server_fd));
ASSERT(0 == uv_poll_start(&poll_req[0],
UV_PRIORITIZED | UV_READABLE | UV_WRITABLE,
poll_cb));
ASSERT(0 == uv_poll_start(&poll_req[1],
UV_READABLE,
poll_cb));
do {
r = send(server_fd, "hello", 5, MSG_OOB);
} while (r < 0 && errno == EINTR);
ASSERT(5 == r);
do {
r = send(server_fd, "world", 5, 0);
} while (r < 0 && errno == EINTR);
ASSERT(5 == r);
ASSERT(0 == uv_idle_start(&idle, idle_cb));
}
TEST_IMPL(poll_oob) {
struct sockaddr_in addr;
int r = 0;
uv_loop_t* loop;
ASSERT(0 == uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
loop = uv_default_loop();
ASSERT(0 == uv_tcp_init(loop, &server_handle));
ASSERT(0 == uv_tcp_init(loop, &client_handle));
ASSERT(0 == uv_tcp_init(loop, &peer_handle));
ASSERT(0 == uv_idle_init(loop, &idle));
ASSERT(0 == uv_tcp_bind(&server_handle, (const struct sockaddr*) &addr, 0));
ASSERT(0 == uv_listen((uv_stream_t*) &server_handle, 1, connection_cb));
/* Ensure two separate packets */
ASSERT(0 == uv_tcp_nodelay(&client_handle, 1));
client_fd = socket(PF_INET, SOCK_STREAM, 0);
ASSERT(client_fd >= 0);
do {
errno = 0;
r = connect(client_fd, (const struct sockaddr*)&addr, sizeof(addr));
} while (r == -1 && errno == EINTR);
ASSERT(r == 0);
ASSERT(0 == uv_run(loop, UV_RUN_DEFAULT));
ASSERT(ticks == kMaxTicks);
/* Did client receive the POLLPRI message */
ASSERT(cli_pr_check == 1);
/* Did client receive the POLLIN message */
ASSERT(cli_rd_check == 2);
/* Could we write with POLLOUT and did the server receive our POLLOUT message
* through POLLIN.
*/
ASSERT(srv_rd_check == 1);
MAKE_VALGRIND_HAPPY();
return 0;
}
#else
typedef int file_has_no_tests; /* ISO C forbids an empty translation unit. */
#endif
|
