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
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
|
/* SPDX-License-Identifier: MPL-2.0 */
#include "testutil.hpp"
#include "testutil_unity.hpp"
#include <string.h>
// NOTE: on OSX the endpoint returned by ZMQ_LAST_ENDPOINT may be quite long,
// ensure we have extra space for that:
#define SOCKET_STRING_LEN (MAX_SOCKET_STRING * 4)
SETUP_TEARDOWN_TESTCONTEXT
int test_defaults (int send_hwm_, int msg_cnt_, const char *endpoint_)
{
char pub_endpoint[SOCKET_STRING_LEN];
// Set up and bind XPUB socket
void *pub_socket = test_context_socket (ZMQ_XPUB);
test_bind (pub_socket, endpoint_, pub_endpoint, sizeof pub_endpoint);
// Set up and connect SUB socket
void *sub_socket = test_context_socket (ZMQ_SUB);
TEST_ASSERT_SUCCESS_ERRNO (zmq_connect (sub_socket, pub_endpoint));
//set a hwm on publisher
TEST_ASSERT_SUCCESS_ERRNO (
zmq_setsockopt (pub_socket, ZMQ_SNDHWM, &send_hwm_, sizeof (send_hwm_)));
TEST_ASSERT_SUCCESS_ERRNO (
zmq_setsockopt (sub_socket, ZMQ_SUBSCRIBE, 0, 0));
// Wait before starting TX operations till 1 subscriber has subscribed
// (in this test there's 1 subscriber only)
const char subscription_to_all_topics[] = {1, 0};
recv_string_expect_success (pub_socket, subscription_to_all_topics, 0);
// Send until we reach "mute" state
int send_count = 0;
while (send_count < msg_cnt_
&& zmq_send (pub_socket, "test message", 13, ZMQ_DONTWAIT) == 13)
++send_count;
TEST_ASSERT_EQUAL_INT (send_hwm_, send_count);
msleep (SETTLE_TIME);
// Now receive all sent messages
int recv_count = 0;
char dummybuff[64];
while (13 == zmq_recv (sub_socket, &dummybuff, 64, ZMQ_DONTWAIT)) {
++recv_count;
}
TEST_ASSERT_EQUAL_INT (send_hwm_, recv_count);
// Clean up
test_context_socket_close (sub_socket);
test_context_socket_close (pub_socket);
return recv_count;
}
int receive (void *socket_, int *is_termination_)
{
int recv_count = 0;
*is_termination_ = 0;
// Now receive all sent messages
char buffer[255];
int len;
while ((len = zmq_recv (socket_, buffer, sizeof (buffer), 0)) >= 0) {
++recv_count;
if (len == 3 && strncmp (buffer, "end", len) == 0) {
*is_termination_ = 1;
return recv_count;
}
}
return recv_count;
}
int test_blocking (int send_hwm_, int msg_cnt_, const char *endpoint_)
{
char pub_endpoint[SOCKET_STRING_LEN];
int bufsize = 4096;
// Set up bind socket
void *pub_socket = test_context_socket (ZMQ_XPUB);
TEST_ASSERT_SUCCESS_ERRNO (
zmq_setsockopt (pub_socket, ZMQ_SNDBUF, &bufsize, sizeof (int)));
test_bind (pub_socket, endpoint_, pub_endpoint, sizeof pub_endpoint);
// Set up connect socket
void *sub_socket = test_context_socket (ZMQ_SUB);
TEST_ASSERT_SUCCESS_ERRNO (
zmq_setsockopt (pub_socket, ZMQ_RCVBUF, &bufsize, sizeof (int)));
TEST_ASSERT_SUCCESS_ERRNO (zmq_connect (sub_socket, pub_endpoint));
//set a hwm on publisher
TEST_ASSERT_SUCCESS_ERRNO (
zmq_setsockopt (pub_socket, ZMQ_SNDHWM, &send_hwm_, sizeof (send_hwm_)));
int wait = 1;
TEST_ASSERT_SUCCESS_ERRNO (
zmq_setsockopt (pub_socket, ZMQ_XPUB_NODROP, &wait, sizeof (wait)));
int timeout_ms = 10;
TEST_ASSERT_SUCCESS_ERRNO (zmq_setsockopt (
sub_socket, ZMQ_RCVTIMEO, &timeout_ms, sizeof (timeout_ms)));
TEST_ASSERT_SUCCESS_ERRNO (
zmq_setsockopt (sub_socket, ZMQ_SUBSCRIBE, 0, 0));
// Wait before starting TX operations till 1 subscriber has subscribed
// (in this test there's 1 subscriber only)
const uint8_t subscription_to_all_topics[] = {1};
recv_array_expect_success (pub_socket, subscription_to_all_topics, 0);
// Send until we block
int send_count = 0;
int recv_count = 0;
int blocked_count = 0;
int is_termination = 0;
zmq_msg_t msg;
zmq_msg_init (&msg);
while (send_count < msg_cnt_) {
zmq_msg_close (&msg);
zmq_msg_init_size (&msg, 100);
const int rc = zmq_msg_send (&msg, pub_socket, ZMQ_DONTWAIT);
if (rc >= 0) {
++send_count;
} else if (-1 == rc) {
// if the PUB socket blocks due to HWM, errno should be EAGAIN:
blocked_count++;
TEST_ASSERT_FAILURE_ERRNO (EAGAIN, -1);
recv_count += receive (sub_socket, &is_termination);
}
}
zmq_msg_close (&msg);
// if send_hwm_ < msg_cnt_, we should block at least once:
char counts_string[128];
snprintf (counts_string, sizeof counts_string - 1,
"sent = %i, received = %i", send_count, recv_count);
TEST_ASSERT_GREATER_THAN_INT_MESSAGE (0, blocked_count, counts_string);
// dequeue SUB socket again, to make sure XPUB has space to send the termination message
recv_count += receive (sub_socket, &is_termination);
// send termination message
send_string_expect_success (pub_socket, "end", 0);
// now block on the SUB side till we get the termination message
while (is_termination == 0)
recv_count += receive (sub_socket, &is_termination);
// remove termination message from the count:
recv_count--;
TEST_ASSERT_EQUAL_INT (send_count, recv_count);
// Clean up
test_context_socket_close (sub_socket);
test_context_socket_close (pub_socket);
return recv_count;
}
// hwm should apply to the messages that have already been received
// with hwm 11024: send 9999 msg, receive 9999, send 1100, receive 1100
void test_reset_hwm ()
{
const int first_count = 9999;
const int second_count = 1100;
int hwm = 11024;
char my_endpoint[SOCKET_STRING_LEN];
// Set up bind socket
void *pub_socket = test_context_socket (ZMQ_PUB);
TEST_ASSERT_SUCCESS_ERRNO (
zmq_setsockopt (pub_socket, ZMQ_SNDHWM, &hwm, sizeof (hwm)));
bind_loopback_ipv4 (pub_socket, my_endpoint, MAX_SOCKET_STRING);
// Set up connect socket
void *sub_socket = test_context_socket (ZMQ_SUB);
TEST_ASSERT_SUCCESS_ERRNO (
zmq_setsockopt (sub_socket, ZMQ_RCVHWM, &hwm, sizeof (hwm)));
TEST_ASSERT_SUCCESS_ERRNO (zmq_connect (sub_socket, my_endpoint));
TEST_ASSERT_SUCCESS_ERRNO (
zmq_setsockopt (sub_socket, ZMQ_SUBSCRIBE, 0, 0));
msleep (SETTLE_TIME);
// Send messages
int send_count = 0;
while (send_count < first_count
&& zmq_send (pub_socket, NULL, 0, ZMQ_DONTWAIT) == 0)
++send_count;
TEST_ASSERT_EQUAL_INT (first_count, send_count);
msleep (SETTLE_TIME);
// Now receive all sent messages
int recv_count = 0;
while (0 == zmq_recv (sub_socket, NULL, 0, ZMQ_DONTWAIT)) {
++recv_count;
}
TEST_ASSERT_EQUAL_INT (first_count, recv_count);
msleep (SETTLE_TIME);
// Send messages
send_count = 0;
while (send_count < second_count
&& zmq_send (pub_socket, NULL, 0, ZMQ_DONTWAIT) == 0)
++send_count;
TEST_ASSERT_EQUAL_INT (second_count, send_count);
msleep (SETTLE_TIME);
// Now receive all sent messages
recv_count = 0;
while (0 == zmq_recv (sub_socket, NULL, 0, ZMQ_DONTWAIT)) {
++recv_count;
}
TEST_ASSERT_EQUAL_INT (second_count, recv_count);
// Clean up
test_context_socket_close (sub_socket);
test_context_socket_close (pub_socket);
}
void test_defaults_large (const char *bind_endpoint_)
{
// send 1000 msg on hwm 1000, receive 1000
TEST_ASSERT_EQUAL_INT (1000, test_defaults (1000, 1000, bind_endpoint_));
}
void test_defaults_small (const char *bind_endpoint_)
{
// send 1000 msg on hwm 100, receive 100
TEST_ASSERT_EQUAL_INT (100, test_defaults (100, 100, bind_endpoint_));
}
void test_blocking (const char *bind_endpoint_)
{
// send 6000 msg on hwm 2000, drops above hwm, only receive hwm:
TEST_ASSERT_EQUAL_INT (6000, test_blocking (2000, 6000, bind_endpoint_));
}
#define DEFINE_REGULAR_TEST_CASES(name, bind_endpoint) \
void test_defaults_large_##name () \
{ \
test_defaults_large (bind_endpoint); \
} \
\
void test_defaults_small_##name () \
{ \
test_defaults_small (bind_endpoint); \
} \
\
void test_blocking_##name () \
{ \
test_blocking (bind_endpoint); \
}
#define RUN_REGULAR_TEST_CASES(name) \
RUN_TEST (test_defaults_large_##name); \
RUN_TEST (test_defaults_small_##name); \
RUN_TEST (test_blocking_##name)
DEFINE_REGULAR_TEST_CASES (tcp, "tcp://127.0.0.1:*")
DEFINE_REGULAR_TEST_CASES (inproc, "inproc://a")
#if !defined(ZMQ_HAVE_WINDOWS) && !defined(ZMQ_HAVE_GNU)
DEFINE_REGULAR_TEST_CASES (ipc, "ipc://*")
#endif
int main ()
{
setup_test_environment ();
UNITY_BEGIN ();
RUN_REGULAR_TEST_CASES (tcp);
RUN_REGULAR_TEST_CASES (inproc);
#if !defined(ZMQ_HAVE_WINDOWS) && !defined(ZMQ_HAVE_GNU)
RUN_REGULAR_TEST_CASES (ipc);
#endif
RUN_TEST (test_reset_hwm);
return UNITY_END ();
}
|
