1 /* $FreeBSD$ */
2
3 #include <sys/types.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 "/mytstqueue3"
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 fd_set set;
31 struct mq_attr attr;
32 int status;
33 mqd_t mq;
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
49 pid = fork();
50 if (pid == 0) { /* child */
51 char *buf;
52 int j, i;
53 unsigned int prio;
54
55 mq_close(mq);
56
57 signal(SIGALRM, sighandler);
58
59 mq = mq_open(MQNAME, O_RDWR);
60 if (mq == (mqd_t)-1)
61 err(1, "child process: mq_open");
62 buf = malloc(attr.mq_msgsize);
63 for (j = 0; j < LOOPS; ++j) {
64 FD_ZERO(&set);
65 FD_SET(mq_getfd_np(mq), &set);
66 alarm(3);
67 status = select(mq_getfd_np(mq) + 1, &set, NULL,
68 NULL, NULL);
69 if (status != 1)
70 err(1, "child process: select()");
71 status = mq_receive(mq, buf, attr.mq_msgsize, &prio);
72 if (status == -1)
73 err(2, "child process: mq_receive");
74 for (i = 0; i < attr.mq_msgsize; ++i)
75 if (buf[i] != i)
76 err(3, "message data corrupted");
77 if (prio != PRIO)
78 err(4, "priority is incorrect: %d", prio);
79 }
80 alarm(0);
81 free(buf);
82 mq_close(mq);
83 return (0);
84 } else if (pid == -1) {
85 err(1, "fork()");
86 } else {
87 char *buf;
88 int i, j;
89
90 signal(SIGALRM, sighandler);
91 buf = malloc(attr.mq_msgsize);
92 for (j = 0; j < LOOPS; ++j) {
93 for (i = 0; i < attr.mq_msgsize; ++i) {
94 buf[i] = i;
95 }
96 alarm(3);
97 FD_ZERO(&set);
98 FD_SET(mq_getfd_np(mq), &set);
99 status = select(mq_getfd_np(mq) + 1, NULL, &set,
100 NULL, NULL);
101 if (status != 1)
102 err(1, "select()");
103 status = mq_send(mq, buf, attr.mq_msgsize, PRIO);
104 if (status) {
105 kill(pid, SIGKILL);
106 err(2, "mq_send()");
107 }
108 }
109 alarm(3);
110 wait(&status);
111 alarm(0);
112 }
113 status = mq_close(mq);
114 if (status)
115 err(1, "mq_close");
116 mq_unlink(MQNAME);
117 return (0);
118 }
119