fbtl/tst-robust9.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <errno.h>
   4 #include <pthread.h>
   5 #include <unistd.h>
   6 #include <sys/time.h>
   7
   8
   9 static pthread_mutex_t m;
  10
  11 static void *
  12 tf (void *data)
  13 {
  14   int err = pthread_mutex_lock (&m);
  15   if (err == EOWNERDEAD)
  16     {
  17       err = pthread_mutex_consistent_np (&m);
  18       if (err)
  19         {
  20           puts ("pthread_mutex_consistent_np");
  21           exit (1);
  22         }
  23     }
  24   else if (err)
  25     {
  26       puts ("pthread_mutex_lock");
  27       exit (1);
  28     }
  29   printf ("thread%ld got the lock.\n", (long int) data);
  30   sleep (1);
  31   /* exit without unlock */
  32   return NULL;
  33 }
  34
  35 static int
  36 do_test (void)
  37 {
  38   int err, i;
  39   pthread_t t[3];
  40   pthread_mutexattr_t ma;
  41
  42   pthread_mutexattr_init (&ma);
  43   err = pthread_mutexattr_setrobust_np (&ma, PTHREAD_MUTEX_ROBUST_NP);
  44   if (err)
  45     {
  46       puts ("pthread_mutexattr_setrobust_np");
  47       return 1;
  48     }
  49 #ifdef ENABLE_PI
  50   if (pthread_mutexattr_setprotocol (&ma, PTHREAD_PRIO_INHERIT) != 0)
  51     {
  52       puts ("pthread_mutexattr_setprotocol failed");
  53       return 1;
  54     }
  55 #endif
  56   err = pthread_mutex_init (&m, &ma);
  57 #ifdef ENABLE_PI
  58   if (err == ENOTSUP)
  59     {
  60       puts ("PI robust mutexes not supported");
  61       return 0;
  62     }
  63 #endif
  64   if (err)
  65     {
  66       puts ("pthread_mutex_init");
  67       return 1;
  68     }
  69
  70   for (i = 0; i < sizeof (t) / sizeof (t[0]); i++)
  71     {
  72       err = pthread_create (&t[i], NULL, tf, (void *) (long int) i);
  73       if (err)
  74         {
  75           puts ("pthread_create");
  76           return 1;
  77         }
  78     }
  79
  80   for (i = 0; i < sizeof (t) / sizeof (t[0]); i++)
  81     {
  82       err = pthread_join (t[i], NULL);
  83       if (err)
  84         {
  85           puts ("pthread_join");
  86           return 1;
  87         }
  88     }
  89   return 0;
  90 }
  91
  92 #define TIMEOUT 5
  93 #define TEST_FUNCTION do_test ()
  94 #include "../test-skeleton.c"