1 /* Copyright (C) 2003-2020 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
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, see
17 <https://www.gnu.org/licenses/>. */
24 #include <shlib-compat.h>
28 __pthread_attr_setaffinity_np (pthread_attr_t
*attr
, size_t cpusetsize
,
29 const cpu_set_t
*cpuset
)
31 struct pthread_attr
*iattr
;
33 iattr
= (struct pthread_attr
*) attr
;
35 if (cpuset
== NULL
|| cpusetsize
== 0)
37 if (iattr
->extension
!= NULL
)
39 free (iattr
->extension
->cpuset
);
40 iattr
->extension
->cpuset
= NULL
;
41 iattr
->extension
->cpusetsize
= 0;
46 int ret
= __pthread_attr_extension (iattr
);
50 if (iattr
->extension
->cpusetsize
!= cpusetsize
)
52 void *newp
= realloc (iattr
->extension
->cpuset
, cpusetsize
);
56 iattr
->extension
->cpuset
= newp
;
57 iattr
->extension
->cpusetsize
= cpusetsize
;
60 memcpy (iattr
->extension
->cpuset
, cpuset
, cpusetsize
);
65 libc_hidden_def (__pthread_attr_setaffinity_np
)
66 versioned_symbol (libc
, __pthread_attr_setaffinity_np
,
67 pthread_attr_setaffinity_np
, GLIBC_2_32
);
70 #if SHLIB_COMPAT (libc, GLIBC_2_3_4, GLIBC_2_32)
71 /* Compat symbol with the old libc version. */
72 strong_alias (__pthread_attr_setaffinity_np
, __pthread_attr_setaffinity_alias
)
73 compat_symbol (libc
, __pthread_attr_setaffinity_alias
,
74 pthread_attr_setaffinity_np
, GLIBC_2_3_4
);
77 #if SHLIB_COMPAT (libc, GLIBC_2_3_3, GLIBC_2_3_4)
79 __pthread_attr_setaffinity_old (pthread_attr_t
*attr
, cpu_set_t
*cpuset
)
81 /* The old interface by default assumed a 1024 processor bitmap. */
82 return __pthread_attr_setaffinity_np (attr
, 128, cpuset
);
84 compat_symbol (libc
, __pthread_attr_setaffinity_old
,
85 pthread_attr_setaffinity_np
, GLIBC_2_3_3
);