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 "/mytstqueue5"
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 int status;
31 struct mq_attr attr;
32 struct sigaction sa;
33 sigset_t set;
34 siginfo_t info;
35 mqd_t mq;
36 pid_t pid;
37
38 PLAIN_REQUIRE_KERNEL_MODULE("mqueuefs", 0);
39
40 mq_unlink(MQNAME);
41
42 sigemptyset(&set);
43 sigaddset(&set, SIGRTMIN);
44 sigprocmask(SIG_BLOCK, &set, NULL);
45 sigemptyset(&sa.sa_mask);
46 sa.sa_flags = SA_SIGINFO;
47 sa.sa_sigaction = (void *) SIG_DFL;
48 sigaction(SIGRTMIN, &sa, NULL);
49
50 attr.mq_maxmsg = 5;
51 attr.mq_msgsize = 128;
52 mq = mq_open(MQNAME, O_CREAT | O_RDWR | O_EXCL, 0666, &attr);
53 if (mq == (mqd_t)-1)
54 err(1, "mq_open()");
55 status = mq_getattr(mq, &attr);
56 if (status)
57 err(1, "mq_getattr()");
58 pid = fork();
59 if (pid == 0) { /* child */
60 int prio, j, i;
61 char *buf;
62 struct sigevent sigev;
63
64 signal(SIGALRM, sighandler);
65
66 sigev.sigev_notify = SIGEV_SIGNAL;
67 sigev.sigev_signo = SIGRTMIN;
68 sigev.sigev_value.sival_int = 2;
69
70 mq_close(mq);
71 mq = mq_open(MQNAME, O_RDWR | O_NONBLOCK);
72 if (mq == (mqd_t)-1)
73 err(1, "child: mq_open");
74 buf = malloc(attr.mq_msgsize);
75 for (j = 0; j < LOOPS; ++j) {
76 alarm(3);
77 status = mq_notify(mq, &sigev);
78 if (status)
79 err(1, "child: mq_notify");
80 status = sigwaitinfo(&set, &info);
81 if (status == -1)
82 err(1, "child: sigwaitinfo");
83 if (info.si_value.sival_int != 2)
84 err(1, "child: sival_int");
85 status = mq_receive(mq, buf, attr.mq_msgsize, &prio);
86 if (status == -1)
87 err(2, "child: mq_receive");
88 for (i = 0; i < attr.mq_msgsize; ++i)
89 if (buf[i] != i)
90 err(3, "child: message data corrupted");
91 if (prio != PRIO)
92 err(4, "child: priority is incorrect: %d",
93 prio);
94 }
95 alarm(0);
96 free(buf);
97 mq_close(mq);
98 return (0);
99 } else if (pid == -1) {
100 err(1, "fork()");
101 } else {
102 char *buf;
103 int i, j;
104
105 signal(SIGALRM, sighandler);
106 buf = malloc(attr.mq_msgsize);
107 for (j = 0; j < LOOPS; ++j) {
108 for (i = 0; i < attr.mq_msgsize; ++i) {
109 buf[i] = i;
110 }
111 alarm(3);
112 status = mq_send(mq, buf, attr.mq_msgsize, PRIO);
113 if (status) {
114 kill(pid, SIGKILL);
115 err(2, "mq_send()");
116 }
117 }
118 alarm(3);
119 wait(&status);
120 alarm(0);
121 }
122 status = mq_close(mq);
123 if (status)
124 err(1, "mq_close");
125 mq_unlink(MQNAME);
126 return (0);
127 }
128