nptl/tst-cancel18.c

   1 /* Copyright (C) 2003 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <errno.h>
  21 #include <pthread.h>
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <time.h>
  25 #include <unistd.h>
  26
  27
  28 static pthread_barrier_t b;
  29
  30
  31 /* Cleanup handling test.  */
  32 static int cl_called;
  33
  34 static void
  35 cl (void *arg)
  36 {
  37   ++cl_called;
  38 }
  39
  40
  41 static void *
  42 tf (void *arg)
  43 {
  44   int r = pthread_barrier_wait (&b);
  45   if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
  46     {
  47       puts ("barrier_wait failed");
  48       exit (1);
  49     }
  50
  51   pthread_cleanup_push (cl, NULL);
  52
  53   struct timespec ts = { .tv_sec = arg == NULL ? 10000000 : 0, .tv_nsec = 0 };
  54   TEMP_FAILURE_RETRY (clock_nanosleep (CLOCK_REALTIME, 0, &ts, &ts));
  55
  56   pthread_cleanup_pop (0);
  57
  58   puts ("clock_nanosleep returned");
  59
  60   exit (1);
  61 }
  62
  63
  64 static int
  65 do_test (void)
  66 {
  67   if (pthread_barrier_init (&b, NULL, 2) != 0)
  68     {
  69       puts ("barrier_init failed");
  70       return 1;
  71     }
  72
  73   pthread_t th;
  74   if (pthread_create (&th, NULL, tf, NULL) != 0)
  75     {
  76       puts ("1st create failed");
  77       return 1;
  78     }
  79
  80   int r = pthread_barrier_wait (&b);
  81   if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
  82     {
  83       puts ("barrier_wait failed");
  84       exit (1);
  85     }
  86
  87   struct timespec  ts = { .tv_sec = 0, .tv_nsec = 100000000 };
  88   while (nanosleep (&ts, &ts) != 0)
  89     continue;
  90
  91   puts ("going to cancel in-time");
  92   if (pthread_cancel (th) != 0)
  93     {
  94       puts ("1st cancel failed");
  95       return 1;
  96     }
  97
  98   void *status;
  99   if (pthread_join (th, &status) != 0)
 100     {
 101       puts ("1st join failed");
 102       return 1;
 103     }
 104   if (status != PTHREAD_CANCELED)
 105     {
 106       puts ("1st thread not canceled");
 107       return 1;
 108     }
 109
 110   if (cl_called == 0)
 111     {
 112       puts ("cleanup handler not called");
 113       return 1;
 114     }
 115   if (cl_called > 1)
 116     {
 117       puts ("cleanup handler called more than once");
 118       return 1;
 119     }
 120
 121   puts ("in-time cancellation succeeded");
 122
 123
 124   cl_called = 0;
 125
 126   if (pthread_create (&th, NULL, tf, NULL) != 0)
 127     {
 128       puts ("2nd create failed");
 129       return 1;
 130     }
 131
 132   puts ("going to cancel early");
 133   if (pthread_cancel (th) != 0)
 134     {
 135       puts ("2nd cancel failed");
 136       return 1;
 137     }
 138
 139   r = pthread_barrier_wait (&b);
 140   if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
 141     {
 142       puts ("barrier_wait failed");
 143       exit (1);
 144     }
 145
 146   if (pthread_join (th, &status) != 0)
 147     {
 148       puts ("2nd join failed");
 149       return 1;
 150     }
 151   if (status != PTHREAD_CANCELED)
 152     {
 153       puts ("2nd thread not canceled");
 154       return 1;
 155     }
 156
 157   if (cl_called == 0)
 158     {
 159       printf ("cleanup handler not called\n");
 160       return 1;
 161     }
 162   if (cl_called > 1)
 163     {
 164       printf ("cleanup handler called more than once\n");
 165       return 1;
 166     }
 167
 168   puts ("early cancellation succeeded");
 169
 170   return 0;
 171 }
 172
 173 #define TEST_FUNCTION do_test ()
 174 #include "../test-skeleton.c"