Handle invalid buffer pointers when count is zero.
[glibc/history.git] / nptl / cleanup_compat.c
bloba25b397f9c32c7efbf1869cc8907abf9759db4a0
1 /* Copyright (C) 2002, 2003 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 <stdlib.h>
21 #include "pthreadP.h"
24 void
25 _pthread_cleanup_push (buffer, routine, arg)
26 struct _pthread_cleanup_buffer *buffer;
27 void (*routine) (void *);
28 void *arg;
30 struct pthread *self = THREAD_SELF;
32 buffer->__routine = routine;
33 buffer->__arg = arg;
34 buffer->__prev = THREAD_GETMEM (self, cleanup);
36 THREAD_SETMEM (self, cleanup, buffer);
38 strong_alias (_pthread_cleanup_push, __pthread_cleanup_push)
41 void
42 _pthread_cleanup_pop (buffer, execute)
43 struct _pthread_cleanup_buffer *buffer;
44 int execute;
46 struct pthread *self __attribute ((unused)) = THREAD_SELF;
48 THREAD_SETMEM (self, cleanup, buffer->__prev);
50 /* If necessary call the cleanup routine after we removed the
51 current cleanup block from the list. */
52 if (execute)
53 buffer->__routine (buffer->__arg);
55 strong_alias (_pthread_cleanup_pop, __pthread_cleanup_pop)