1 /* $FreeBSD$ */
2
3 #include <sys/types.h>
4 #include <sys/wait.h>
5 #include <err.h>
6 #include <fcntl.h>
7 #include <mqueue.h>
8 #include <signal.h>
9 #include <stdio.h>
10 #include <stdlib.h>
11 #include <unistd.h>
12
13 #include "freebsd_test_suite/macros.h"
14
15 #define MQNAME "/mytstqueue2"
16 #define LOOPS 1000
17 #define PRIO 10
18
19 static void
alarmhandler(int sig __unused)20 alarmhandler(int sig __unused)
21 {
22 write(1, "timeout\n", 8);
23 _exit(1);
24 }
25
26 int
main(void)27 main(void)
28 {
29 struct mq_attr attr;
30 mqd_t mq;
31 int status;
32 pid_t pid;
33
34 PLAIN_REQUIRE_KERNEL_MODULE("mqueuefs", 0);
35
36 mq_unlink(MQNAME);
37
38 attr.mq_maxmsg = 5;
39 attr.mq_msgsize = 128;
40 mq = mq_open(MQNAME, O_CREAT | O_RDWR | O_EXCL, 0666, &attr);
41 if (mq == (mqd_t)-1)
42 err(1, "mq_open");
43 status = mq_getattr(mq, &attr);
44 if (status)
45 err(1, "mq_getattr");
46 pid = fork();
47 if (pid == 0) { /* child */
48 char *buf;
49 int j, i;
50 unsigned int prio;
51
52 mq_close(mq);
53
54 signal(SIGALRM, alarmhandler);
55
56 mq = mq_open(MQNAME, O_RDWR);
57 if (mq == (mqd_t)-1)
58 err(1, "child: mq_open");
59 buf = malloc(attr.mq_msgsize);
60 for (j = 0; j < LOOPS; ++j) {
61 alarm(3);
62 status = mq_receive(mq, buf, attr.mq_msgsize, &prio);
63 if (status == -1)
64 err(2, "child: mq_receive");
65 for (i = 0; i < attr.mq_msgsize; ++i)
66 if (buf[i] != i)
67 err(3, "child: message data corrupted");
68 if (prio != PRIO)
69 err(4, "child: priority is incorrect: %d",
70 prio);
71 }
72 alarm(0);
73 free(buf);
74 mq_close(mq);
75 return (0);
76 } else if (pid == -1) {
77 err(1, "fork()");
78 } else {
79 char *buf;
80 int i, j;
81
82 signal(SIGALRM, alarmhandler);
83 buf = malloc(attr.mq_msgsize);
84 for (j = 0; j < LOOPS; ++j) {
85 for (i = 0; i < attr.mq_msgsize; ++i)
86 buf[i] = i;
87 alarm(3);
88 status = mq_send(mq, buf, attr.mq_msgsize, PRIO);
89 if (status)
90 err(1, "mq_send");
91 }
92 alarm(3);
93 wait(&status);
94 alarm(0);
95 }
96 status = mq_close(mq);
97 if (status)
98 err(1, "mq_close");
99 mq_unlink(MQNAME);
100 return (0);
101 }
102