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glibc  2.9
tst-join1.c
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00001 /* Copyright (C) 2002 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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 
00024 
00025 static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
00026 
00027 
00028 static void *
00029 tf (void *arg)
00030 {
00031   pthread_t mh = (pthread_t) arg;
00032   void *result;
00033 
00034   if (pthread_mutex_unlock (&lock) != 0)
00035     {
00036       puts ("unlock failed");
00037       exit (1);
00038     }
00039 
00040   if (pthread_join (mh, &result) != 0)
00041     {
00042       puts ("join failed");
00043       exit (1);
00044     }
00045 
00046   if (result != (void *) 42l)
00047     {
00048       printf ("result wrong: expected %p, got %p\n", (void *) 42, result);
00049       exit (1);
00050     }
00051 
00052   exit (0);
00053 }
00054 
00055 
00056 static int
00057 do_test (void)
00058 {
00059   pthread_t th;
00060 
00061   if (pthread_mutex_lock (&lock) != 0)
00062     {
00063       puts ("1st lock failed");
00064       exit (1);
00065     }
00066 
00067   if (pthread_create (&th, NULL, tf, (void *) pthread_self ()) != 0)
00068     {
00069       puts ("create failed");
00070       exit (1);
00071     }
00072 
00073   if (pthread_mutex_lock (&lock) != 0)
00074     {
00075       puts ("2nd lock failed");
00076       exit (1);
00077     }
00078 
00079   pthread_exit ((void *) 42);
00080 }
00081 
00082 #define TEST_FUNCTION do_test ()
00083 #include "../test-skeleton.c"