nptl/tst-cancel25.c

   1 #include <pthread.h>
   2 #include <signal.h>
   3 #include <stdio.h>
   4 #include <stdlib.h>
   5 #include <internal-signals.h>
   6
   7
   8 static pthread_barrier_t b;
   9 static pthread_t th2;
  10
  11
  12 static void *
  13 tf2 (void *arg)
  14 {
  15   sigset_t mask;
  16   if (pthread_sigmask (SIG_SETMASK, NULL, &mask) != 0)
  17     {
  18       puts ("pthread_sigmask failed");
  19       exit (1);
  20     }
  21   if (sigismember (&mask, SIGCANCEL))
  22     {
  23       puts ("SIGCANCEL blocked in new thread");
  24       exit (1);
  25     }
  26
  27   /* Sync with the main thread so that we do not test anything else.  */
  28   int e = pthread_barrier_wait (&b);
  29   if (e != 0  && e != PTHREAD_BARRIER_SERIAL_THREAD)
  30     {
  31       puts ("barrier_wait failed");
  32       exit (1);
  33     }
  34
  35   while (1)
  36     {
  37       /* Just a cancelable call.  */
  38       struct timespec ts = { 10000, 0 };
  39       nanosleep (&ts, 0);
  40     }
  41
  42   return NULL;
  43 }
  44
  45
  46 static void
  47 unwhand (void *arg)
  48 {
  49   if (pthread_create (&th2, NULL, tf2, NULL) != 0)
  50     {
  51       puts ("unwhand: create failed");
  52       exit (1);
  53     }
  54 }
  55
  56
  57 static void *
  58 tf (void *arg)
  59 {
  60   pthread_cleanup_push (unwhand, NULL);
  61
  62   /* Sync with the main thread so that we do not test anything else.  */
  63   int e = pthread_barrier_wait (&b);
  64   if (e != 0  && e != PTHREAD_BARRIER_SERIAL_THREAD)
  65     {
  66       puts ("barrier_wait failed");
  67       exit (1);
  68     }
  69
  70   while (1)
  71     {
  72       /* Just a cancelable call.  */
  73       struct timespec ts = { 10000, 0 };
  74       nanosleep (&ts, 0);
  75     }
  76
  77   pthread_cleanup_pop (0);
  78
  79   return NULL;
  80 }
  81
  82
  83 static int
  84 do_test (void)
  85 {
  86   if (pthread_barrier_init (&b, NULL, 2) != 0)
  87     {
  88       puts ("barrier_init failed");
  89       return 1;
  90     }
  91
  92   pthread_t th1;
  93   if (pthread_create (&th1, NULL, tf, NULL) != 0)
  94     {
  95       puts ("create failed");
  96       return 1;
  97     }
  98
  99   int e = pthread_barrier_wait (&b);
 100   if (e != 0  && e != PTHREAD_BARRIER_SERIAL_THREAD)
 101     {
 102       puts ("barrier_wait failed");
 103       return 1;
 104     }
 105
 106   /* Make sure tf1 enters nanosleep.  */
 107   struct timespec ts = { 0, 500000000 };
 108   while (nanosleep (&ts, &ts) != 0)
 109     ;
 110
 111   if (pthread_cancel (th1) != 0)
 112     {
 113       puts ("1st cancel failed");
 114       return 1;
 115     }
 116
 117   void *res;
 118   if (pthread_join (th1, &res) != 0)
 119     {
 120       puts ("1st join failed");
 121       return 1;
 122     }
 123   if (res != PTHREAD_CANCELED)
 124     {
 125       puts ("1st thread not canceled");
 126       return 1;
 127     }
 128
 129   e = pthread_barrier_wait (&b);
 130   if (e != 0  && e != PTHREAD_BARRIER_SERIAL_THREAD)
 131     {
 132       puts ("barrier_wait failed");
 133       return 1;
 134     }
 135
 136   /* Make sure tf2 enters nanosleep.  */
 137   ts.tv_sec = 0;
 138   ts.tv_nsec = 500000000;
 139   while (nanosleep (&ts, &ts) != 0)
 140     ;
 141
 142   puts ("calling pthread_cancel the second time");
 143   if (pthread_cancel (th2) != 0)
 144     {
 145       puts ("2nd cancel failed");
 146       return 1;
 147     }
 148
 149   puts ("calling pthread_join the second time");
 150   if (pthread_join (th2, &res) != 0)
 151     {
 152       puts ("2nd join failed");
 153       return 1;
 154     }
 155   if (res != PTHREAD_CANCELED)
 156     {
 157       puts ("2nd thread not canceled");
 158       return 1;
 159     }
 160
 161   if (pthread_barrier_destroy (&b) != 0)
 162     {
 163       puts ("barrier_destroy failed");
 164       return 0;
 165     }
 166
 167   return 0;
 168 }
 169
 170 #define TEST_FUNCTION do_test ()
 171 #include "../test-skeleton.c"