nptl/tst-cancel20.c

   1 /* Copyright (C) 2003, 2004 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, 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 <signal.h>
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <unistd.h>
  26
  27
  28 static int fd[4];
  29 static pthread_barrier_t b;
  30 volatile int in_sh_body;
  31 unsigned long cleanups;
  32
  33 static void
  34 cl (void *arg)
  35 {
  36   cleanups = (cleanups << 4) | (long) arg;
  37 }
  38
  39
  40 static void __attribute__((noinline))
  41 sh_body (void)
  42 {
  43   char c;
  44
  45   pthread_cleanup_push (cl, (void *) 1L);
  46
  47   in_sh_body = 1;
  48   if (read (fd[2], &c, 1) == 1)
  49     {
  50       puts ("read succeeded");
  51       exit (1);
  52     }
  53
  54   pthread_cleanup_pop (0);
  55 }
  56
  57
  58 static void
  59 sh (int sig)
  60 {
  61   pthread_cleanup_push (cl, (void *) 2L);
  62   sh_body ();
  63   in_sh_body = 0;
  64
  65   pthread_cleanup_pop (0);
  66 }
  67
  68
  69 static void __attribute__((noinline))
  70 tf_body (void)
  71 {
  72   char c;
  73
  74   pthread_cleanup_push (cl, (void *) 3L);
  75
  76   int r = pthread_barrier_wait (&b);
  77   if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
  78     {
  79       puts ("child thread: barrier_wait failed");
  80       exit (1);
  81     }
  82
  83   if (read (fd[0], &c, 1) == 1)
  84     {
  85       puts ("read succeeded");
  86       exit (1);
  87     }
  88
  89   read (fd[0], &c, 1);
  90
  91   pthread_cleanup_pop (0);
  92 }
  93
  94
  95 static void *
  96 tf (void *arg)
  97 {
  98   pthread_cleanup_push (cl, (void *) 4L);
  99   tf_body ();
 100   pthread_cleanup_pop (0);
 101   return NULL;
 102 }
 103
 104
 105 static int
 106 do_one_test (void)
 107 {
 108   in_sh_body = 0;
 109   cleanups = 0;
 110   if (pipe (fd) != 0 || pipe (fd + 2) != 0)
 111     {
 112       puts ("pipe failed");
 113       return 1;
 114     }
 115
 116   pthread_t th;
 117   if (pthread_create (&th, NULL, tf, NULL) != 0)
 118     {
 119       puts ("create failed");
 120       return 1;
 121     }
 122
 123   int r = pthread_barrier_wait (&b);
 124   if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
 125     {
 126       puts ("parent thread: barrier_wait failed");
 127       return 1;
 128     }
 129
 130   sleep (1);
 131
 132   r = pthread_kill (th, SIGHUP);
 133   if (r)
 134     {
 135       errno = r;
 136       printf ("pthread_kill failed %m\n");
 137       return 1;
 138     }
 139
 140   while (in_sh_body == 0)
 141     sleep (1);
 142
 143   if (pthread_cancel (th) != 0)
 144     {
 145       puts ("cancel failed");
 146       return 1;
 147     }
 148
 149   /* This will cause the read in the child to return.  */
 150   close (fd[0]);
 151   close (fd[1]);
 152   close (fd[2]);
 153   close (fd[3]);
 154
 155   void *ret;
 156   if (pthread_join (th, &ret) != 0)
 157     {
 158       puts ("join failed");
 159       return 1;
 160     }
 161
 162   if (ret != PTHREAD_CANCELED)
 163     {
 164       puts ("result is wrong");
 165       return 1;
 166     }
 167
 168   if (cleanups != 0x1234L)
 169     {
 170       printf ("called cleanups %lx\n", cleanups);
 171       return 1;
 172     }
 173
 174   return 0;
 175 }
 176
 177
 178 static int
 179 do_test (void)
 180 {
 181   stack_t ss;
 182   ss.ss_sp = malloc (2 * SIGSTKSZ);
 183   if (ss.ss_sp == NULL)
 184     {
 185       puts ("failed to allocate alternate stack");
 186       return 1;
 187     }
 188   ss.ss_flags = 0;
 189   ss.ss_size = 2 * SIGSTKSZ;
 190   if (sigaltstack (&ss, NULL) < 0)
 191     {
 192       printf ("sigaltstack failed %m\n");
 193       return 1;
 194     }
 195
 196   if (pthread_barrier_init (&b, NULL, 2) != 0)
 197     {
 198       puts ("barrier_init failed");
 199       return 1;
 200     }
 201
 202   struct sigaction sa;
 203   sa.sa_handler = sh;
 204   sigemptyset (&sa.sa_mask);
 205   sa.sa_flags = 0;
 206
 207   if (sigaction (SIGHUP, &sa, NULL) != 0)
 208     {
 209       puts ("sigaction failed");
 210       return 1;
 211     }
 212
 213   puts ("sa_flags = 0 test");
 214   if (do_one_test ())
 215     return 1;
 216
 217   sa.sa_handler = sh;
 218   sigemptyset (&sa.sa_mask);
 219   sa.sa_flags = SA_ONSTACK;
 220
 221   if (sigaction (SIGHUP, &sa, NULL) != 0)
 222     {
 223       puts ("sigaction failed");
 224       return 1;
 225     }
 226
 227   puts ("sa_flags = SA_ONSTACK test");
 228   if (do_one_test ())
 229     return 1;
 230
 231   sa.sa_sigaction = (void (*)(int, siginfo_t *, void *)) sh;
 232   sigemptyset (&sa.sa_mask);
 233   sa.sa_flags = SA_SIGINFO;
 234
 235   if (sigaction (SIGHUP, &sa, NULL) != 0)
 236     {
 237       puts ("sigaction failed");
 238       return 1;
 239     }
 240
 241   puts ("sa_flags = SA_SIGINFO test");
 242   if (do_one_test ())
 243     return 1;
 244
 245   sa.sa_sigaction = (void (*)(int, siginfo_t *, void *)) sh;
 246   sigemptyset (&sa.sa_mask);
 247   sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
 248
 249   if (sigaction (SIGHUP, &sa, NULL) != 0)
 250     {
 251       puts ("sigaction failed");
 252       return 1;
 253     }
 254
 255   puts ("sa_flags = SA_SIGINFO|SA_ONSTACK test");
 256   if (do_one_test ())
 257     return 1;
 258
 259   return 0;
 260 }
 261
 262 #define TIMEOUT 40
 263 #define TEST_FUNCTION do_test ()
 264 #include "../test-skeleton.c"