1
2 #include <sys/types.h>
3 #include <sys/event.h>
4 #include <sys/select.h>
5 #include <sys/wait.h>
6 #include <err.h>
7 #include <fcntl.h>
8 #include <mqueue.h>
9 #include <signal.h>
10 #include <stdio.h>
11 #include <stdlib.h>
12 #include <unistd.h>
13
14 #include "freebsd_test_suite/macros.h"
15
16 #define MQNAME "/mytstqueue4"
17 #define LOOPS 1000
18 #define PRIO 10
19
20 static void
sighandler(int sig __unused)21 sighandler(int sig __unused)
22 {
23 write(1, "timeout\n", 8);
24 _exit(1);
25 }
26
27 int
main(void)28 main(void)
29 {
30 struct kevent kev;
31 struct mq_attr attr;
32 mqd_t mq;
33 int kq, status;
34 pid_t pid;
35
36 PLAIN_REQUIRE_KERNEL_MODULE("mqueuefs", 0);
37
38 mq_unlink(MQNAME);
39
40 attr.mq_maxmsg = 5;
41 attr.mq_msgsize = 128;
42 mq = mq_open(MQNAME, O_CREAT | O_RDWR | O_EXCL, 0666, &attr);
43 if (mq == (mqd_t) -1)
44 err(1, "mq_open()");
45 status = mq_getattr(mq, &attr);
46 if (status)
47 err(1, "mq_getattr()");
48 pid = fork();
49 if (pid == 0) { /* child */
50 char *buf;
51 int j, i;
52 unsigned int prio;
53
54 mq_close(mq);
55 kq = kqueue();
56 mq = mq_open(MQNAME, O_RDWR);
57 if (mq == (mqd_t)-1)
58 err(1, "child: mq_open");
59 EV_SET(&kev, mq_getfd_np(mq), EVFILT_READ, EV_ADD, 0, 0, 0);
60 status = kevent(kq, &kev, 1, NULL, 0, NULL);
61 if (status == -1)
62 err(1, "child: kevent");
63 buf = malloc(attr.mq_msgsize);
64 for (j = 0; j < LOOPS; ++j) {
65 alarm(3);
66 status = kevent(kq, NULL, 0, &kev, 1, NULL);
67 if (status != 1)
68 err(1, "child: kevent 2");
69 status = mq_receive(mq, buf, attr.mq_msgsize, &prio);
70 if (status == -1)
71 err(2, "child: mq_receive");
72 for (i = 0; i < attr.mq_msgsize; ++i)
73 if (buf[i] != i)
74 err(3, "child: message data corrupted");
75 if (prio != PRIO)
76 err(4, "child: priority is incorrect: %d",
77 prio);
78 }
79 alarm(0);
80 free(buf);
81 mq_close(mq);
82 return (0);
83 } else if (pid == -1) {
84 err(1, "fork()");
85 } else {
86 char *buf;
87 int i, j;
88
89 signal(SIGALRM, sighandler);
90 kq = kqueue();
91 EV_SET(&kev, mq_getfd_np(mq), EVFILT_WRITE, EV_ADD, 0, 0, 0);
92 status = kevent(kq, &kev, 1, NULL, 0, NULL);
93 if (status == -1)
94 err(1, "kevent");
95 buf = malloc(attr.mq_msgsize);
96 for (j = 0; j < LOOPS; ++j) {
97 for (i = 0; i < attr.mq_msgsize; ++i) {
98 buf[i] = i;
99 }
100 alarm(3);
101 status = kevent(kq, NULL, 0, &kev, 1, NULL);
102 if (status != 1)
103 err(1, "child: kevent 2");
104 status = mq_send(mq, buf, attr.mq_msgsize, PRIO);
105 if (status) {
106 err(2, "mq_send()");
107 }
108 }
109 free(buf);
110 alarm(3);
111 wait(&status);
112 alarm(0);
113 }
114 status = mq_close(mq);
115 if (status)
116 err(1, "mq_close");
117 mq_unlink(MQNAME);
118 return (0);
119 }
120