nptl/tst-cancel19.c

   1 /* Copyright (C) 2003-2017 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Jakub Jelinek <jakub@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, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <errno.h>
  20 #include <error.h>
  21 #include <fcntl.h>
  22 #include <pthread.h>
  23 #include <signal.h>
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27 #include <sys/select.h>
  28 #include <sys/time.h>
  29 #include <unistd.h>
  30
  31 static void *
  32 tf (void *arg)
  33 {
  34   return NULL;
  35 }
  36
  37 static void
  38 handler (int sig)
  39 {
  40 }
  41
  42 static void __attribute__ ((noinline))
  43 clobber_lots_of_regs (void)
  44 {
  45 #define X1(n) long r##n = 10##n; __asm __volatile ("" : "+r" (r##n));
  46 #define X2(n) X1(n##0) X1(n##1) X1(n##2) X1(n##3) X1(n##4)
  47 #define X3(n) X2(n##0) X2(n##1) X2(n##2) X2(n##3) X2(n##4)
  48   X3(0) X3(1) X3(2) X3(3) X3(4)
  49 #undef X1
  50 #define X1(n) __asm __volatile ("" : : "r" (r##n));
  51   X3(0) X3(1) X3(2) X3(3) X3(4)
  52 #undef X1
  53 #undef X2
  54 #undef X3
  55 }
  56
  57 static int
  58 do_test (void)
  59 {
  60   pthread_t th;
  61   int old, rc;
  62   int ret = 0;
  63   int fd[2];
  64
  65   rc = pipe (fd);
  66   if (rc < 0)
  67     error (EXIT_FAILURE, errno, "couldn't create pipe");
  68
  69   rc = pthread_create (&th, NULL, tf, NULL);
  70   if (rc)
  71     error (EXIT_FAILURE, rc, "couldn't create thread");
  72
  73   rc = pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, &old);
  74   if (rc)
  75     {
  76       error (0, rc, "1st pthread_setcanceltype failed");
  77       ret = 1;
  78     }
  79   if (old != PTHREAD_CANCEL_DEFERRED && old != PTHREAD_CANCEL_ASYNCHRONOUS)
  80     {
  81       error (0, 0, "1st pthread_setcanceltype returned invalid value %d",
  82              old);
  83       ret = 1;
  84     }
  85
  86   clobber_lots_of_regs ();
  87   close (fd[0]);
  88
  89   rc = pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, &old);
  90   if (rc)
  91     {
  92       error (0, rc, "pthread_setcanceltype after close failed");
  93       ret = 1;
  94     }
  95   if (old != PTHREAD_CANCEL_DEFERRED)
  96     {
  97       error (0, 0, "pthread_setcanceltype after close returned invalid value %d",
  98              old);
  99       ret = 1;
 100     }
 101
 102   clobber_lots_of_regs ();
 103   close (fd[1]);
 104
 105   rc = pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, &old);
 106   if (rc)
 107     {
 108       error (0, rc, "pthread_setcanceltype after 2nd close failed");
 109       ret = 1;
 110     }
 111   if (old != PTHREAD_CANCEL_ASYNCHRONOUS)
 112     {
 113       error (0, 0, "pthread_setcanceltype after 2nd close returned invalid value %d",
 114              old);
 115       ret = 1;
 116     }
 117
 118   struct sigaction sa = { .sa_handler = handler, .sa_flags = 0 };
 119   sigemptyset (&sa.sa_mask);
 120   sigaction (SIGALRM, &sa, NULL);
 121
 122   struct itimerval it;
 123   it.it_value.tv_sec = 1;
 124   it.it_value.tv_usec = 0;
 125   it.it_interval = it.it_value;
 126   setitimer (ITIMER_REAL, &it, NULL);
 127
 128   clobber_lots_of_regs ();
 129   pause ();
 130
 131   memset (&it, 0, sizeof (it));
 132   setitimer (ITIMER_REAL, &it, NULL);
 133
 134   rc = pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, &old);
 135   if (rc)
 136     {
 137       error (0, rc, "pthread_setcanceltype after pause failed");
 138       ret = 1;
 139     }
 140   if (old != PTHREAD_CANCEL_DEFERRED)
 141     {
 142       error (0, 0, "pthread_setcanceltype after pause returned invalid value %d",
 143              old);
 144       ret = 1;
 145     }
 146
 147   it.it_value.tv_sec = 1;
 148   it.it_value.tv_usec = 0;
 149   it.it_interval = it.it_value;
 150   setitimer (ITIMER_REAL, &it, NULL);
 151
 152   clobber_lots_of_regs ();
 153   pause ();
 154
 155   memset (&it, 0, sizeof (it));
 156   setitimer (ITIMER_REAL, &it, NULL);
 157
 158   rc = pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, &old);
 159   if (rc)
 160     {
 161       error (0, rc, "pthread_setcanceltype after 2nd pause failed");
 162       ret = 1;
 163     }
 164   if (old != PTHREAD_CANCEL_ASYNCHRONOUS)
 165     {
 166       error (0, 0, "pthread_setcanceltype after 2nd pause returned invalid value %d",
 167              old);
 168       ret = 1;
 169     }
 170
 171   char fname[] = "/tmp/tst-cancel19-dir-XXXXXX\0foo/bar";
 172   char *enddir = strchr (fname, '\0');
 173   if (mkdtemp (fname) == NULL)
 174     {
 175       error (0, errno, "mkdtemp failed");
 176       ret = 1;
 177     }
 178   *enddir = '/';
 179
 180   clobber_lots_of_regs ();
 181   creat (fname, 0400);
 182
 183   rc = pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, &old);
 184   if (rc)
 185     {
 186       error (0, rc, "pthread_setcanceltype after creat failed");
 187       ret = 1;
 188     }
 189   if (old != PTHREAD_CANCEL_DEFERRED)
 190     {
 191       error (0, 0, "pthread_setcanceltype after creat returned invalid value %d",
 192              old);
 193       ret = 1;
 194     }
 195
 196   clobber_lots_of_regs ();
 197   creat (fname, 0400);
 198
 199   rc = pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, &old);
 200   if (rc)
 201     {
 202       error (0, rc, "pthread_setcanceltype after 2nd creat failed");
 203       ret = 1;
 204     }
 205   if (old != PTHREAD_CANCEL_ASYNCHRONOUS)
 206     {
 207       error (0, 0, "pthread_setcanceltype after 2nd creat returned invalid value %d",
 208              old);
 209       ret = 1;
 210     }
 211
 212   clobber_lots_of_regs ();
 213   open (fname, O_CREAT, 0400);
 214
 215   rc = pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, &old);
 216   if (rc)
 217     {
 218       error (0, rc, "pthread_setcanceltype after open failed");
 219       ret = 1;
 220     }
 221   if (old != PTHREAD_CANCEL_DEFERRED)
 222     {
 223       error (0, 0, "pthread_setcanceltype after open returned invalid value %d",
 224              old);
 225       ret = 1;
 226     }
 227
 228   clobber_lots_of_regs ();
 229   open (fname, O_CREAT, 0400);
 230
 231   rc = pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, &old);
 232   if (rc)
 233     {
 234       error (0, rc, "pthread_setcanceltype after 2nd open failed");
 235       ret = 1;
 236     }
 237   if (old != PTHREAD_CANCEL_ASYNCHRONOUS)
 238     {
 239       error (0, 0, "pthread_setcanceltype after 2nd open returned invalid value %d",
 240              old);
 241       ret = 1;
 242     }
 243
 244   *enddir = '\0';
 245   rmdir (fname);
 246
 247   clobber_lots_of_regs ();
 248   select (-1, NULL, NULL, NULL, NULL);
 249
 250   rc = pthread_setcanceltype (PTHREAD_CANCEL_ASYNCHRONOUS, &old);
 251   if (rc)
 252     {
 253       error (0, rc, "pthread_setcanceltype after select failed");
 254       ret = 1;
 255     }
 256   if (old != PTHREAD_CANCEL_DEFERRED)
 257     {
 258       error (0, 0, "pthread_setcanceltype after select returned invalid value %d",
 259              old);
 260       ret = 1;
 261     }
 262
 263   clobber_lots_of_regs ();
 264   select (-1, NULL, NULL, NULL, NULL);
 265
 266   rc = pthread_setcanceltype (PTHREAD_CANCEL_DEFERRED, &old);
 267   if (rc)
 268     {
 269       error (0, rc, "pthread_setcanceltype after 2nd select failed");
 270       ret = 1;
 271     }
 272   if (old != PTHREAD_CANCEL_ASYNCHRONOUS)
 273     {
 274       error (0, 0, "pthread_setcanceltype after 2nd select returned invalid value %d",
 275              old);
 276       ret = 1;
 277     }
 278
 279   pthread_join (th, NULL);
 280
 281   return ret;
 282 }
 283
 284 #define TIMEOUT 20
 285 #define TEST_FUNCTION do_test ()
 286 #include "../test-skeleton.c"