1
2 #include <sys/types.h>
3 #include <sys/wait.h>
4 #include <err.h>
5 #include <fcntl.h>
6 #include <mqueue.h>
7 #include <signal.h>
8 #include <stdio.h>
9 #include <stdlib.h>
10 #include <unistd.h>
11
12 #include "freebsd_test_suite/macros.h"
13
14 #define MQNAME "/mytstqueue2"
15 #define LOOPS 1000
16 #define PRIO 10
17
18 static void
alarmhandler(int sig __unused)19 alarmhandler(int sig __unused)
20 {
21 write(1, "timeout\n", 8);
22 _exit(1);
23 }
24
25 int
main(void)26 main(void)
27 {
28 struct mq_attr attr;
29 mqd_t mq;
30 int status;
31 pid_t pid;
32
33 PLAIN_REQUIRE_KERNEL_MODULE("mqueuefs", 0);
34
35 mq_unlink(MQNAME);
36
37 attr.mq_maxmsg = 5;
38 attr.mq_msgsize = 128;
39 mq = mq_open(MQNAME, O_CREAT | O_RDWR | O_EXCL, 0666, &attr);
40 if (mq == (mqd_t)-1)
41 err(1, "mq_open");
42 status = mq_getattr(mq, &attr);
43 if (status)
44 err(1, "mq_getattr");
45 pid = fork();
46 if (pid == 0) { /* child */
47 char *buf;
48 int j, i;
49 unsigned int prio;
50
51 mq_close(mq);
52
53 signal(SIGALRM, alarmhandler);
54
55 mq = mq_open(MQNAME, O_RDWR);
56 if (mq == (mqd_t)-1)
57 err(1, "child: mq_open");
58 buf = malloc(attr.mq_msgsize);
59 for (j = 0; j < LOOPS; ++j) {
60 alarm(3);
61 status = mq_receive(mq, buf, attr.mq_msgsize, &prio);
62 if (status == -1)
63 err(2, "child: mq_receive");
64 for (i = 0; i < attr.mq_msgsize; ++i)
65 if (buf[i] != i)
66 err(3, "child: message data corrupted");
67 if (prio != PRIO)
68 err(4, "child: priority is incorrect: %d",
69 prio);
70 }
71 alarm(0);
72 free(buf);
73 mq_close(mq);
74 return (0);
75 } else if (pid == -1) {
76 err(1, "fork()");
77 } else {
78 char *buf;
79 int i, j;
80
81 signal(SIGALRM, alarmhandler);
82 buf = malloc(attr.mq_msgsize);
83 for (j = 0; j < LOOPS; ++j) {
84 for (i = 0; i < attr.mq_msgsize; ++i)
85 buf[i] = i;
86 alarm(3);
87 status = mq_send(mq, buf, attr.mq_msgsize, PRIO);
88 if (status)
89 err(1, "mq_send");
90 }
91 alarm(3);
92 wait(&status);
93 alarm(0);
94 }
95 status = mq_close(mq);
96 if (status)
97 err(1, "mq_close");
98 mq_unlink(MQNAME);
99 return (0);
100 }
101