1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
|
/* Copyright (C) 2002, 2003, 2004, 2007 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <assert.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include "pthreadP.h"
#include <shlib-compat.h>
struct pthread_attr *__attr_list;
int __attr_list_lock = LLL_LOCK_INITIALIZER;
int
__pthread_attr_init_2_1 (attr)
pthread_attr_t *attr;
{
struct pthread_attr *iattr;
/* Many elements are initialized to zero so let us do it all at
once. This also takes care of clearing the bytes which are not
internally used. */
memset (attr, '\0', __SIZEOF_PTHREAD_ATTR_T);
assert (sizeof (*attr) >= sizeof (struct pthread_attr));
iattr = (struct pthread_attr *) attr;
/* Default guard size specified by the standard. */
iattr->guardsize = __getpagesize ();
return 0;
}
versioned_symbol (libpthread, __pthread_attr_init_2_1, pthread_attr_init,
GLIBC_2_1);
#if SHLIB_COMPAT(libpthread, GLIBC_2_0, GLIBC_2_1)
int
__pthread_attr_init_2_0 (attr)
pthread_attr_t *attr;
{
/* This code is specific to the old LinuxThread code which has a too
small pthread_attr_t definition. The struct looked like
this: */
struct old_attr
{
int detachstate;
int schedpolicy;
struct sched_param schedparam;
int inheritsched;
int scope;
};
struct pthread_attr *iattr;
/* Many elements are initialized to zero so let us do it all at
once. This also takes care of clearing the bytes which are not
internally used. */
memset (attr, '\0', sizeof (struct old_attr));
iattr = (struct pthread_attr *) attr;
iattr->flags |= ATTR_FLAG_OLDATTR;
/* We cannot enqueue the attribute because that member is not in the
old attribute structure. */
return 0;
}
compat_symbol (libpthread, __pthread_attr_init_2_0, pthread_attr_init,
GLIBC_2_0);
#endif
|
