nptl/tst-join5.c

   1 /* Copyright (C) 2003, 2006 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 #include <sys/syscall.h>
  27
  28
  29 #define wait_code()                                                           \
  30   do {                                                                        \
  31     struct timespec ts = { .tv_sec = 0, .tv_nsec = 200000000 };               \
  32     while (syscall (__NR_nanosleep, &ts, &ts) < 0)                            \
  33       /* nothing */;                                                          \
  34   } while (0)
  35
  36
  37 #ifdef WAIT_IN_CHILD
  38 static pthread_barrier_t b;
  39 #endif
  40
  41
  42 static void *
  43 tf1 (void *arg)
  44 {
  45 #ifdef WAIT_IN_CHILD
  46   int e = pthread_barrier_wait (&b);
  47   if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
  48     {
  49       printf ("%s: barrier_wait failed\n", __func__);
  50       exit (1);
  51     }
  52
  53   wait_code ();
  54 #endif
  55
  56   pthread_join ((pthread_t) arg, NULL);
  57
  58   exit (42);
  59 }
  60
  61
  62 static void *
  63 tf2 (void *arg)
  64 {
  65 #ifdef WAIT_IN_CHILD
  66   int e = pthread_barrier_wait (&b);
  67   if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
  68     {
  69       printf ("%s: barrier_wait failed\n", __func__);
  70       exit (1);
  71     }
  72
  73   wait_code ();
  74 #endif
  75   pthread_join ((pthread_t) arg, NULL);
  76
  77   exit (43);
  78 }
  79
  80
  81 static int
  82 do_test (void)
  83 {
  84 #ifdef WAIT_IN_CHILD
  85   if (pthread_barrier_init (&b, NULL, 2) != 0)
  86     {
  87       puts ("barrier_init failed");
  88       return 1;
  89     }
  90 #endif
  91
  92   pthread_t th;
  93
  94   int err = pthread_join (pthread_self (), NULL);
  95   if (err == 0)
  96     {
  97       puts ("1st circular join succeeded");
  98       return 1;
  99     }
 100   if (err != EDEADLK)
 101     {
 102       printf ("1st circular join %d, not EDEADLK\n", err);
 103       return 1;
 104     }
 105
 106   if (pthread_create (&th, NULL, tf1, (void *) pthread_self ()) != 0)
 107     {
 108       puts ("1st create failed");
 109       return 1;
 110     }
 111
 112 #ifndef WAIT_IN_CHILD
 113   wait_code ();
 114 #endif
 115
 116   if (pthread_cancel (th) != 0)
 117     {
 118       puts ("cannot cancel 1st thread");
 119       return 1;
 120     }
 121
 122 #ifdef WAIT_IN_CHILD
 123   int e = pthread_barrier_wait (&b);
 124   if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
 125     {
 126       printf ("%s: barrier_wait failed\n", __func__);
 127       return 1;
 128     }
 129 #endif
 130
 131   void *r;
 132   err = pthread_join (th, &r);
 133   if (err != 0)
 134     {
 135       printf ("cannot join 1st thread: %d\n", err);
 136       return 1;
 137     }
 138   if (r != PTHREAD_CANCELED)
 139     {
 140       puts ("1st thread not canceled");
 141       return 1;
 142     }
 143
 144   err = pthread_join (pthread_self (), NULL);
 145   if (err == 0)
 146     {
 147       puts ("2nd circular join succeeded");
 148       return 1;
 149     }
 150   if (err != EDEADLK)
 151     {
 152       printf ("2nd circular join %d, not EDEADLK\n", err);
 153       return 1;
 154     }
 155
 156   if (pthread_create (&th, NULL, tf2, (void *) pthread_self ()) != 0)
 157     {
 158       puts ("2nd create failed");
 159       return 1;
 160     }
 161
 162 #ifndef WAIT_IN_CHILD
 163   wait_code ();
 164 #endif
 165
 166   if (pthread_cancel (th) != 0)
 167     {
 168       puts ("cannot cancel 2nd thread");
 169       return 1;
 170     }
 171
 172 #ifdef WAIT_IN_CHILD
 173   e = pthread_barrier_wait (&b);
 174   if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
 175     {
 176       printf ("%s: barrier_wait failed\n", __func__);
 177       return 1;
 178     }
 179 #endif
 180
 181   if (pthread_join (th, &r) != 0)
 182     {
 183       puts ("cannot join 2nd thread");
 184       return 1;
 185     }
 186   if (r != PTHREAD_CANCELED)
 187     {
 188       puts ("2nd thread not canceled");
 189       return 1;
 190     }
 191
 192   err = pthread_join (pthread_self (), NULL);
 193   if (err == 0)
 194     {
 195       puts ("3rd circular join succeeded");
 196       return 1;
 197     }
 198   if (err != EDEADLK)
 199     {
 200       printf ("3rd circular join %d, not EDEADLK\n", err);
 201       return 1;
 202     }
 203
 204   return 0;
 205 }
 206
 207 #define TEST_FUNCTION do_test ()
 208 #include "../test-skeleton.c"