nptl/tst-basic6.c

   1 /* Copyright (C) 2003-2017 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 <pthread.h>
  20 #include <stdio.h>
  21 #include <stdlib.h>
  22 #include <string.h>
  23 #include <unistd.h>
  24
  25
  26 static char *p;
  27
  28 static pthread_barrier_t b;
  29 #define BT \
  30   e = pthread_barrier_wait (&b);                                              \
  31   if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)                           \
  32     {                                                                         \
  33       puts ("barrier_wait failed");                                           \
  34       exit (1);                                                               \
  35     }
  36
  37
  38 static void *
  39 tf (void *a)
  40 {
  41   int e;
  42
  43   BT;
  44
  45   char *p2 = getcwd (NULL, 0);
  46   if (p2 == NULL)
  47     {
  48       puts ("2nd getcwd failed");
  49       exit (1);
  50     }
  51
  52   if (strcmp (p, p2) != 0)
  53     {
  54       printf ("initial cwd mismatch: \"%s\" vs \"%s\"\n", p, p2);
  55       exit (1);
  56     }
  57
  58   free (p);
  59   free (p2);
  60
  61   if (chdir ("..") != 0)
  62     {
  63       puts ("chdir failed");
  64       exit (1);
  65     }
  66
  67   p = getcwd (NULL, 0);
  68   if (p == NULL)
  69     {
  70       puts ("getcwd failed");
  71       exit (1);
  72     }
  73
  74   return a;
  75 }
  76
  77
  78 int
  79 do_test (void)
  80 {
  81   if (pthread_barrier_init (&b, NULL, 2) != 0)
  82     {
  83       puts ("barrier_init failed");
  84       exit (1);
  85     }
  86
  87   pthread_t th;
  88   if (pthread_create (&th, NULL, tf, NULL) != 0)
  89     {
  90       puts ("create failed");
  91       exit (1);
  92     }
  93
  94   p = getcwd (NULL, 0);
  95   if (p == NULL)
  96     {
  97       puts ("getcwd failed");
  98       exit (1);
  99     }
 100
 101   int e;
 102   BT;
 103
 104   if (pthread_join (th, NULL) != 0)
 105     {
 106       puts ("join failed");
 107       exit (1);
 108     }
 109
 110   char *p2 = getcwd (NULL, 0);
 111   if (p2 == NULL)
 112     {
 113       puts ("2nd getcwd failed");
 114       exit (1);
 115     }
 116
 117   if (strcmp (p, p2) != 0)
 118     {
 119       printf ("cwd after chdir mismatch: \"%s\" vs \"%s\"\n", p, p2);
 120       exit (1);
 121     }
 122
 123   free (p);
 124   free (p2);
 125
 126   return 0;
 127 }
 128
 129
 130 #define TEST_FUNCTION do_test ()
 131 #include "../test-skeleton.c"