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authorJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
committerJakub Jelinek <jakub@redhat.com>2007-07-12 18:26:36 +0000
commit0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (patch)
tree2ea1f8305970753e4a657acb2ccc15ca3eec8e2c /nptl/tst-robust8.c
parent7d58530341304d403a6626d7f7a1913165fe2f32 (diff)
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2.5-18.1
Diffstat (limited to 'nptl/tst-robust8.c')
-rw-r--r--nptl/tst-robust8.c275
1 files changed, 275 insertions, 0 deletions
diff --git a/nptl/tst-robust8.c b/nptl/tst-robust8.c
new file mode 100644
index 0000000..9c63625
--- /dev/null
+++ b/nptl/tst-robust8.c
@@ -0,0 +1,275 @@
+#include <pthread.h>
+#include <signal.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/wait.h>
+
+
+
+
+static void prepare (void);
+#define PREPARE(argc, argv) prepare ()
+static int do_test (void);
+#define TEST_FUNCTION do_test ()
+#define TIMEOUT 5
+#include "../test-skeleton.c"
+
+
+static int fd;
+#define N 100
+
+static void
+prepare (void)
+{
+ fd = create_temp_file ("tst-robust8", NULL);
+ if (fd == -1)
+ exit (1);
+}
+
+
+#define THESIGNAL SIGKILL
+#define ROUNDS 5
+#define THREADS 9
+
+
+static const struct timespec before = { 0, 0 };
+
+
+static pthread_mutex_t *map;
+
+
+static void *
+tf (void *arg)
+{
+ long int nr = (long int) arg;
+ int fct = nr % 3;
+
+ uint8_t state[N];
+ memset (state, '\0', sizeof (state));
+
+ while (1)
+ {
+ int r = random () % N;
+ if (state[r] == 0)
+ {
+ int e;
+
+ switch (fct)
+ {
+ case 0:
+ e = pthread_mutex_lock (&map[r]);
+ if (e != 0)
+ {
+ printf ("mutex_lock of %d in thread %ld failed with %d\n",
+ r, nr, e);
+ exit (1);
+ }
+ state[r] = 1;
+ break;
+ case 1:
+ e = pthread_mutex_timedlock (&map[r], &before);
+ if (e != 0 && e != ETIMEDOUT)
+ {
+ printf ("\
+mutex_timedlock of %d in thread %ld failed with %d\n",
+ r, nr, e);
+ exit (1);
+ }
+ break;
+ default:
+ e = pthread_mutex_trylock (&map[r]);
+ if (e != 0 && e != EBUSY)
+ {
+ printf ("mutex_trylock of %d in thread %ld failed with %d\n",
+ r, nr, e);
+ exit (1);
+ }
+ break;
+ }
+
+ if (e == EOWNERDEAD)
+ pthread_mutex_consistent_np (&map[r]);
+
+ if (e == 0 || e == EOWNERDEAD)
+ state[r] = 1;
+ }
+ else
+ {
+ int e = pthread_mutex_unlock (&map[r]);
+ if (e != 0)
+ {
+ printf ("mutex_unlock of %d in thread %ld failed with %d\n",
+ r, nr, e);
+ exit (1);
+ }
+
+ state[r] = 0;
+ }
+ }
+}
+
+
+static void
+child (int round)
+{
+ for (int thread = 1; thread <= THREADS; ++thread)
+ {
+ pthread_t th;
+ if (pthread_create (&th, NULL, tf, (void *) (long int) thread) != 0)
+ {
+ printf ("cannot create thread %d in round %d\n", thread, round);
+ exit (1);
+ }
+ }
+
+ struct timespec ts;
+ ts.tv_sec = 0;
+ ts.tv_nsec = 1000000000 / ROUNDS;
+ while (nanosleep (&ts, &ts) != 0)
+ /* nothing */;
+
+ /* Time to die. */
+ kill (getpid (), THESIGNAL);
+
+ /* We better never get here. */
+ abort ();
+}
+
+
+static int
+do_test (void)
+{
+ if (ftruncate (fd, N * sizeof (pthread_mutex_t)) != 0)
+ {
+ puts ("cannot size new file");
+ return 1;
+ }
+
+ map = mmap (NULL, N * sizeof (pthread_mutex_t), PROT_READ | PROT_WRITE,
+ MAP_SHARED, fd, 0);
+ if (map == MAP_FAILED)
+ {
+ puts ("mapping failed");
+ return 1;
+ }
+
+ pthread_mutexattr_t ma;
+ if (pthread_mutexattr_init (&ma) != 0)
+ {
+ puts ("mutexattr_init failed");
+ return 0;
+ }
+ if (pthread_mutexattr_setrobust_np (&ma, PTHREAD_MUTEX_ROBUST_NP) != 0)
+ {
+ puts ("mutexattr_setrobust failed");
+ return 1;
+ }
+ if (pthread_mutexattr_setpshared (&ma, PTHREAD_PROCESS_SHARED) != 0)
+ {
+ puts ("mutexattr_setpshared failed");
+ return 1;
+ }
+#ifdef ENABLE_PI
+ if (pthread_mutexattr_setprotocol (&ma, PTHREAD_PRIO_INHERIT) != 0)
+ {
+ puts ("pthread_mutexattr_setprotocol failed");
+ return 1;
+ }
+#endif
+
+ for (int round = 1; round <= ROUNDS; ++round)
+ {
+ for (int n = 0; n < N; ++n)
+ {
+ int e = pthread_mutex_init (&map[n], &ma);
+ if (e == ENOTSUP)
+ {
+#ifdef ENABLE_PI
+ puts ("cannot support pshared robust PI mutexes");
+#else
+ puts ("cannot support pshared robust mutexes");
+#endif
+ return 0;
+ }
+ if (e != 0)
+ {
+ printf ("mutex_init %d in round %d failed\n", n + 1, round);
+ return 1;
+ }
+ }
+
+ pid_t p = fork ();
+ if (p == -1)
+ {
+ printf ("fork in round %d failed\n", round);
+ return 1;
+ }
+ if (p == 0)
+ child (round);
+
+ int status;
+ if (TEMP_FAILURE_RETRY (waitpid (p, &status, 0)) != p)
+ {
+ printf ("waitpid in round %d failed\n", round);
+ return 1;
+ }
+ if (!WIFSIGNALED (status))
+ {
+ printf ("child did not die of a signal in round %d\n", round);
+ return 1;
+ }
+ if (WTERMSIG (status) != THESIGNAL)
+ {
+ printf ("child did not die of signal %d in round %d\n",
+ THESIGNAL, round);
+ return 1;
+ }
+
+ for (int n = 0; n < N; ++n)
+ {
+ int e = pthread_mutex_lock (&map[n]);
+ if (e != 0 && e != EOWNERDEAD)
+ {
+ printf ("mutex_lock %d failed in round %d\n", n + 1, round);
+ return 1;
+ }
+ }
+
+ for (int n = 0; n < N; ++n)
+ if (pthread_mutex_unlock (&map[n]) != 0)
+ {
+ printf ("mutex_unlock %d failed in round %d\n", n + 1, round);
+ return 1;
+ }
+
+ for (int n = 0; n < N; ++n)
+ {
+ int e = pthread_mutex_destroy (&map[n]);
+ if (e != 0)
+ {
+ printf ("mutex_destroy %d in round %d failed with %d\n",
+ n + 1, round, e);
+ printf("nusers = %d\n", (int) map[n].__data.__nusers);
+ return 1;
+ }
+ }
+ }
+
+ if (pthread_mutexattr_destroy (&ma) != 0)
+ {
+ puts ("mutexattr_destroy failed");
+ return 1;
+ }
+
+ if (munmap (map, N * sizeof (pthread_mutex_t)) != 0)
+ {
+ puts ("munmap failed");
+ return 1;
+ }
+
+ return 0;
+}