1 /*
2 Copyright (c) 2012 Martin Sustrik All rights reserved.
3
4 Permission is hereby granted, free of charge, to any person obtaining a copy
5 of this software and associated documentation files (the "Software"),
6 to deal in the Software without restriction, including without limitation
7 the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 and/or sell copies of the Software, and to permit persons to whom
9 the Software is furnished to do so, subject to the following conditions:
10
11 The above copyright notice and this permission notice shall be included
12 in all copies or substantial portions of the Software.
13
14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
20 IN THE SOFTWARE.
21 */
22
23 #include "../src/nn.h"
24 #include "../src/reqrep.h"
25
26 #include "testutil.h"
27
28 #define SOCKET_ADDRESS "inproc://test"
29
main()30 int main ()
31 {
32 int rc;
33 int rep1;
34 int rep2;
35 int req1;
36 int req2;
37 int resend_ivl;
38 char buf [7];
39 int timeo;
40
41 /* Test req/rep with full socket types. */
42 rep1 = test_socket (AF_SP, NN_REP);
43 test_bind (rep1, SOCKET_ADDRESS);
44 req1 = test_socket (AF_SP, NN_REQ);
45 test_connect (req1, SOCKET_ADDRESS);
46 req2 = test_socket (AF_SP, NN_REQ);
47 test_connect (req2, SOCKET_ADDRESS);
48
49 /* Check invalid sequence of sends and recvs. */
50 rc = nn_send (rep1, "ABC", 3, 0);
51 nn_assert (rc == -1 && nn_errno () == EFSM);
52 rc = nn_recv (req1, buf, sizeof (buf), 0);
53 nn_assert (rc == -1 && nn_errno () == EFSM);
54
55 /* Check fair queueing the requests. */
56 test_send (req2, "ABC");
57 test_recv (rep1, "ABC");
58 test_send (rep1, "ABC");
59 test_recv (req2, "ABC");
60
61 test_send (req1, "ABC");
62 test_recv (rep1, "ABC");
63 test_send (rep1, "ABC");
64 test_recv (req1, "ABC");
65
66 test_close (rep1);
67 test_close (req1);
68 test_close (req2);
69
70 /* Check load-balancing of requests. */
71 req1 = test_socket (AF_SP, NN_REQ);
72 test_bind (req1, SOCKET_ADDRESS);
73 rep1 = test_socket (AF_SP, NN_REP);
74 test_connect (rep1, SOCKET_ADDRESS);
75 rep2 = test_socket (AF_SP, NN_REP);
76 test_connect (rep2, SOCKET_ADDRESS);
77
78 test_send (req1, "ABC");
79 test_recv (rep1, "ABC");
80 test_send (rep1, "ABC");
81 test_recv (req1, "ABC");
82
83 test_send (req1, "ABC");
84 test_recv (rep2, "ABC");
85 test_send (rep2, "ABC");
86 test_recv (req1, "ABC");
87
88 test_close (rep2);
89 test_close (rep1);
90 test_close (req1);
91
92 /* Test re-sending of the request. */
93 rep1 = test_socket (AF_SP, NN_REP);
94 test_bind (rep1, SOCKET_ADDRESS);
95 req1 = test_socket (AF_SP, NN_REQ);
96 test_connect (req1, SOCKET_ADDRESS);
97 resend_ivl = 100;
98 rc = nn_setsockopt (req1, NN_REQ, NN_REQ_RESEND_IVL,
99 &resend_ivl, sizeof (resend_ivl));
100 errno_assert (rc == 0);
101
102 test_send (req1, "ABC");
103 test_recv (rep1, "ABC");
104 /* The following waits for request to be resent */
105 test_recv (rep1, "ABC");
106
107 test_close (req1);
108 test_close (rep1);
109
110 /* Check sending a request when the peer is not available. (It should
111 be sent immediatelly when the peer comes online rather than relying
112 on the resend algorithm. */
113 req1 = test_socket (AF_SP, NN_REQ);
114 test_connect (req1, SOCKET_ADDRESS);
115 test_send (req1, "ABC");
116
117 rep1 = test_socket (AF_SP, NN_REP);
118 test_bind (rep1, SOCKET_ADDRESS);
119 timeo = 200;
120 rc = nn_setsockopt (rep1, NN_SOL_SOCKET, NN_RCVTIMEO,
121 &timeo, sizeof (timeo));
122 errno_assert (rc == 0);
123 test_recv (rep1, "ABC");
124
125 test_close (req1);
126 test_close (rep1);
127
128 /* Check removing socket request sent to (It should
129 be sent immediatelly to other peer rather than relying
130 on the resend algorithm). */
131 req1 = test_socket (AF_SP, NN_REQ);
132 test_bind (req1, SOCKET_ADDRESS);
133 rep1 = test_socket (AF_SP, NN_REP);
134 test_connect (rep1, SOCKET_ADDRESS);
135 rep2 = test_socket (AF_SP, NN_REP);
136 test_connect (rep2, SOCKET_ADDRESS);
137
138 timeo = 200;
139 rc = nn_setsockopt (rep1, NN_SOL_SOCKET, NN_RCVTIMEO,
140 &timeo, sizeof (timeo));
141 errno_assert (rc == 0);
142 rc = nn_setsockopt (rep2, NN_SOL_SOCKET, NN_RCVTIMEO,
143 &timeo, sizeof (timeo));
144 errno_assert (rc == 0);
145
146 test_send (req1, "ABC");
147 /* We got request through rep1 */
148 test_recv (rep1, "ABC");
149 /* But instead replying we simulate crash */
150 test_close (rep1);
151 /* The rep2 should get request immediately */
152 test_recv (rep2, "ABC");
153 /* Let's check it's delivered well */
154 test_send (rep2, "REPLY");
155 test_recv (req1, "REPLY");
156
157
158 test_close (req1);
159 test_close (rep2);
160
161 /* Test cancelling delayed request */
162
163 req1 = test_socket (AF_SP, NN_REQ);
164 test_connect (req1, SOCKET_ADDRESS);
165 test_send (req1, "ABC");
166 test_send (req1, "DEF");
167
168 rep1 = test_socket (AF_SP, NN_REP);
169 test_bind (rep1, SOCKET_ADDRESS);
170 timeo = 100;
171 test_recv (rep1, "DEF");
172
173 test_close (req1);
174 test_close (rep1);
175
176 return 0;
177 }
178
179