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glibc  2.9
tst-basic6.c
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00001 /* Copyright (C) 2003 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003    Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public
00007    License as published by the Free Software Foundation; either
00008    version 2.1 of the License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; if not, write to the Free
00017    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00018    02111-1307 USA.  */
00019 
00020 #include <pthread.h>
00021 #include <stdio.h>
00022 #include <stdlib.h>
00023 #include <string.h>
00024 #include <unistd.h>
00025 
00026 
00027 static char *p;
00028 
00029 static pthread_barrier_t b;
00030 #define BT \
00031   e = pthread_barrier_wait (&b);                                     \
00032   if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD)                         \
00033     {                                                                \
00034       puts ("barrier_wait failed");                                         \
00035       exit (1);                                                             \
00036     }
00037 
00038 
00039 static void *
00040 tf (void *a)
00041 {
00042   int e;
00043 
00044   BT;
00045 
00046   char *p2 = getcwd (NULL, 0);
00047   if (p2 == NULL)
00048     {
00049       puts ("2nd getcwd failed");
00050       exit (1);
00051     }
00052 
00053   if (strcmp (p, p2) != 0)
00054     {
00055       printf ("initial cwd mismatch: \"%s\" vs \"%s\"\n", p, p2);
00056       exit (1);
00057     }
00058 
00059   free (p);
00060   free (p2);
00061 
00062   if (chdir ("..") != 0)
00063     {
00064       puts ("chdir failed");
00065       exit (1);
00066     }
00067 
00068   p = getcwd (NULL, 0);
00069   if (p == NULL)
00070     {
00071       puts ("getcwd failed");
00072       exit (1);
00073     }
00074 
00075   return a;
00076 }
00077 
00078 
00079 int
00080 do_test (void)
00081 {
00082   if (pthread_barrier_init (&b, NULL, 2) != 0)
00083     {
00084       puts ("barrier_init failed");
00085       exit (1);
00086     }
00087 
00088   pthread_t th;
00089   if (pthread_create (&th, NULL, tf, NULL) != 0)
00090     {
00091       puts ("create failed");
00092       exit (1);
00093     }
00094 
00095   p = getcwd (NULL, 0);
00096   if (p == NULL)
00097     {
00098       puts ("getcwd failed");
00099       exit (1);
00100     }
00101 
00102   int e;
00103   BT;
00104 
00105   if (pthread_join (th, NULL) != 0)
00106     {
00107       puts ("join failed");
00108       exit (1);
00109     }
00110 
00111   char *p2 = getcwd (NULL, 0);
00112   if (p2 == NULL)
00113     {
00114       puts ("2nd getcwd failed");
00115       exit (1);
00116     }
00117 
00118   if (strcmp (p, p2) != 0)
00119     {
00120       printf ("cwd after chdir mismatch: \"%s\" vs \"%s\"\n", p, p2);
00121       exit (1);
00122     }
00123 
00124   free (p);
00125   free (p2);
00126 
00127   return 0;
00128 }
00129 
00130 
00131 #define TEST_FUNCTION do_test ()
00132 #include "../test-skeleton.c"