Don't crash when dependencies are missing
[glibc.git] / rt / tst-aio10.c
blob6e8f7b78c03d893b6223cd6fa65e670c7dd2f155
1 #include <aio.h>
2 #include <errno.h>
3 #include <signal.h>
4 #include <stdio.h>
5 #include <stdlib.h>
6 #include <pthread.h>
7 #include <unistd.h>
9 static pthread_barrier_t b;
10 static pthread_t main_thread;
11 static int flag;
14 static void *
15 tf (void *arg)
17 int e = pthread_barrier_wait (&b);
18 if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
20 puts ("child: barrier_wait failed");
21 exit (1);
24 /* There is unfortunately no other way to try to make sure the other
25 thread reached the aio_suspend call. This test could fail on
26 highly loaded machines. */
27 sleep (2);
29 pthread_kill (main_thread, SIGUSR1);
31 while (1)
32 sleep (1000);
34 return NULL;
38 static void
39 sh (int sig)
41 flag = 1;
45 static int
46 do_test (void)
48 main_thread = pthread_self ();
50 struct sigaction sa;
52 sa.sa_handler = sh;
53 sa.sa_flags = 0;
54 sigemptyset (&sa.sa_mask);
56 if (sigaction (SIGUSR1, &sa, NULL) != 0)
58 puts ("sigaction failed");
59 return 1;
62 if (pthread_barrier_init (&b, NULL, 2) != 0)
64 puts ("barrier_init");
65 return 1;
68 int fds[2];
69 if (pipe (fds) != 0)
71 puts ("pipe failed");
72 return 1;
75 char buf[42];
76 struct aiocb req;
77 req.aio_fildes = fds[0];
78 req.aio_lio_opcode = LIO_READ;
79 req.aio_reqprio = 0;
80 req.aio_offset = 0;
81 req.aio_buf = buf;
82 req.aio_nbytes = sizeof (buf);
83 req.aio_sigevent.sigev_notify = SIGEV_NONE;
85 pthread_t th;
86 if (pthread_create (&th, NULL, tf, NULL) != 0)
88 puts ("create failed");
89 return 1;
92 int e = pthread_barrier_wait (&b);
93 if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
95 puts ("parent: barrier_wait failed");
96 exit (1);
99 struct aiocb *list[1];
100 list[0] = &req;
102 e = lio_listio (LIO_WAIT, list, 1, NULL);
103 if (e != -1)
105 puts ("lio_listio succeeded");
106 return 1;
108 if (errno != EINTR)
110 printf ("lio_listio did not return EINTR: %d (%d = %m)\n", e, errno);
111 return 1;
114 return 0;
117 #define TEST_FUNCTION do_test ()
118 #define TIMEOUT 5
119 #include "../test-skeleton.c"