fbtl/tst-join5.c

   1 /* Copyright (C) 2003-2013 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, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <errno.h>
  20 #include <pthread.h>
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <time.h>
  24 #include <unistd.h>
  25 #include <sys/syscall.h>
  26
  27 #if !defined(__NR_nanosleep) && defined(SYS_nanosleep)
  28 # define  __NR_nanosleep SYS_nanosleep
  29 #endif
  30
  31 #define wait_code()                                                           \
  32   do {                                                                        \
  33     struct timespec ts = { .tv_sec = 0, .tv_nsec = 200000000 };               \
  34     while (syscall (__NR_nanosleep, &ts, &ts) < 0)                            \
  35       /* nothing */;                                                          \
  36   } while (0)
  37
  38
  39 #ifdef WAIT_IN_CHILD
  40 static pthread_barrier_t b;
  41 #endif
  42
  43
  44 static void *
  45 tf1 (void *arg)
  46 {
  47 #ifdef WAIT_IN_CHILD
  48   int e = pthread_barrier_wait (&b);
  49   if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
  50     {
  51       printf ("%s: barrier_wait failed\n", __func__);
  52       exit (1);
  53     }
  54
  55   wait_code ();
  56 #endif
  57
  58   pthread_join ((pthread_t) arg, NULL);
  59
  60   exit (42);
  61 }
  62
  63
  64 static void *
  65 tf2 (void *arg)
  66 {
  67 #ifdef WAIT_IN_CHILD
  68   int e = pthread_barrier_wait (&b);
  69   if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
  70     {
  71       printf ("%s: barrier_wait failed\n", __func__);
  72       exit (1);
  73     }
  74
  75   wait_code ();
  76 #endif
  77   pthread_join ((pthread_t) arg, NULL);
  78
  79   exit (43);
  80 }
  81
  82
  83 static int
  84 do_test (void)
  85 {
  86 #ifdef WAIT_IN_CHILD
  87   if (pthread_barrier_init (&b, NULL, 2) != 0)
  88     {
  89       puts ("barrier_init failed");
  90       return 1;
  91     }
  92 #endif
  93
  94   pthread_t th;
  95
  96   int err = pthread_join (pthread_self (), NULL);
  97   if (err == 0)
  98     {
  99       puts ("1st circular join succeeded");
 100       return 1;
 101     }
 102   if (err != EDEADLK)
 103     {
 104       printf ("1st circular join %d, not EDEADLK\n", err);
 105       return 1;
 106     }
 107
 108   if (pthread_create (&th, NULL, tf1, (void *) pthread_self ()) != 0)
 109     {
 110       puts ("1st create failed");
 111       return 1;
 112     }
 113
 114 #ifndef WAIT_IN_CHILD
 115   wait_code ();
 116 #endif
 117
 118   if (pthread_cancel (th) != 0)
 119     {
 120       puts ("cannot cancel 1st thread");
 121       return 1;
 122     }
 123
 124 #ifdef WAIT_IN_CHILD
 125   int e = pthread_barrier_wait (&b);
 126   if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
 127     {
 128       printf ("%s: barrier_wait failed\n", __func__);
 129       return 1;
 130     }
 131 #endif
 132
 133   void *r;
 134   err = pthread_join (th, &r);
 135   if (err != 0)
 136     {
 137       printf ("cannot join 1st thread: %d\n", err);
 138       return 1;
 139     }
 140   if (r != PTHREAD_CANCELED)
 141     {
 142       puts ("1st thread not canceled");
 143       return 1;
 144     }
 145
 146   err = pthread_join (pthread_self (), NULL);
 147   if (err == 0)
 148     {
 149       puts ("2nd circular join succeeded");
 150       return 1;
 151     }
 152   if (err != EDEADLK)
 153     {
 154       printf ("2nd circular join %d, not EDEADLK\n", err);
 155       return 1;
 156     }
 157
 158   if (pthread_create (&th, NULL, tf2, (void *) pthread_self ()) != 0)
 159     {
 160       puts ("2nd create failed");
 161       return 1;
 162     }
 163
 164 #ifndef WAIT_IN_CHILD
 165   wait_code ();
 166 #endif
 167
 168   if (pthread_cancel (th) != 0)
 169     {
 170       puts ("cannot cancel 2nd thread");
 171       return 1;
 172     }
 173
 174 #ifdef WAIT_IN_CHILD
 175   e = pthread_barrier_wait (&b);
 176   if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)
 177     {
 178       printf ("%s: barrier_wait failed\n", __func__);
 179       return 1;
 180     }
 181 #endif
 182
 183   if (pthread_join (th, &r) != 0)
 184     {
 185       puts ("cannot join 2nd thread");
 186       return 1;
 187     }
 188   if (r != PTHREAD_CANCELED)
 189     {
 190       puts ("2nd thread not canceled");
 191       return 1;
 192     }
 193
 194   err = pthread_join (pthread_self (), NULL);
 195   if (err == 0)
 196     {
 197       puts ("3rd circular join succeeded");
 198       return 1;
 199     }
 200   if (err != EDEADLK)
 201     {
 202       printf ("3rd circular join %d, not EDEADLK\n", err);
 203       return 1;
 204     }
 205
 206   return 0;
 207 }
 208
 209 #define TEST_FUNCTION do_test ()
 210 #include "../test-skeleton.c"