Handle invalid buffer pointers when count is zero.
[glibc/history.git] / nptl / tst-rwlock1.c
blobc97e0e60f42bc548167da67d8c6bd2de8bb603d4
1 /* Copyright (C) 2002 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
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.
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.
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. */
20 #include <pthread.h>
21 #include <stdio.h>
24 static int
25 do_test (void)
27 pthread_rwlock_t r;
29 if (pthread_rwlock_init (&r, NULL) != 0)
31 puts ("rwlock_init failed");
32 return 1;
34 puts ("rwlock_init succeeded");
36 if (pthread_rwlock_rdlock (&r) != 0)
38 puts ("1st rwlock_rdlock failed");
39 return 1;
41 puts ("1st rwlock_rdlock succeeded");
43 if (pthread_rwlock_rdlock (&r) != 0)
45 puts ("2nd rwlock_rdlock failed");
46 return 1;
48 puts ("2nd rwlock_rdlock succeeded");
50 if (pthread_rwlock_unlock (&r) != 0)
52 puts ("1st rwlock_unlock failed");
53 return 1;
55 puts ("1st rwlock_unlock succeeded");
57 if (pthread_rwlock_unlock (&r) != 0)
59 puts ("2nd rwlock_unlock failed");
60 return 1;
62 puts ("2nd rwlock_unlock succeeded");
64 if (pthread_rwlock_wrlock (&r) != 0)
66 puts ("1st rwlock_wrlock failed");
67 return 1;
69 puts ("1st rwlock_wrlock succeeded");
71 if (pthread_rwlock_unlock (&r) != 0)
73 puts ("3rd rwlock_unlock failed");
74 return 1;
76 puts ("3rd rwlock_unlock succeeded");
78 if (pthread_rwlock_wrlock (&r) != 0)
80 puts ("2nd rwlock_wrlock failed");
81 return 1;
83 puts ("2nd rwlock_wrlock succeeded");
85 if (pthread_rwlock_unlock (&r) != 0)
87 puts ("4th rwlock_unlock failed");
88 return 1;
90 puts ("4th rwlock_unlock succeeded");
92 if (pthread_rwlock_rdlock (&r) != 0)
94 puts ("3rd rwlock_rdlock failed");
95 return 1;
97 puts ("3rd rwlock_rdlock succeeded");
99 if (pthread_rwlock_unlock (&r) != 0)
101 puts ("5th rwlock_unlock failed");
102 return 1;
104 puts ("5th rwlock_unlock succeeded");
106 if (pthread_rwlock_destroy (&r) != 0)
108 puts ("rwlock_destroy failed");
109 return 1;
111 puts ("rwlock_destroy succeeded");
113 return 0;
116 #define TEST_FUNCTION do_test ()
117 #include "../test-skeleton.c"