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 21 sighandler(int sig __unused) 22 { 23 write(1, "timeout\n", 8); 24 _exit(1); 25 } 26 27 int 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