1/* Copyright (C) 2002-2021 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
4
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.
9
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.
14
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/>. */
18
19#include <stdlib.h>
20#include "pthreadP.h"
21#include <shlib-compat.h>
22
23void
24__cleanup_fct_attribute
25___pthread_register_cancel_defer (__pthread_unwind_buf_t *buf)
26{
27 struct pthread_unwind_buf *ibuf = (struct pthread_unwind_buf *) buf;
28 struct pthread *self = THREAD_SELF;
29
30 /* Store old info. */
31 ibuf->priv.data.prev = THREAD_GETMEM (self, cleanup_jmp_buf);
32 ibuf->priv.data.cleanup = THREAD_GETMEM (self, cleanup);
33
34 /* Disable asynchronous cancellation for now. */
35 ibuf->priv.data.canceltype = THREAD_GETMEM (self, canceltype);
36 THREAD_SETMEM (self, canceltype, PTHREAD_CANCEL_DEFERRED);
37
38 /* Store the new cleanup handler info. */
39 THREAD_SETMEM (self, cleanup_jmp_buf, (struct pthread_unwind_buf *) buf);
40}
41versioned_symbol (libc, ___pthread_register_cancel_defer,
42 __pthread_register_cancel_defer, GLIBC_2_34);
43
44#if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_3_3, GLIBC_2_34)
45compat_symbol (libpthread, ___pthread_register_cancel_defer,
46 __pthread_register_cancel_defer, GLIBC_2_3_3);
47#endif
48
49void
50__cleanup_fct_attribute
51___pthread_unregister_cancel_restore (__pthread_unwind_buf_t *buf)
52{
53 struct pthread *self = THREAD_SELF;
54 struct pthread_unwind_buf *ibuf = (struct pthread_unwind_buf *) buf;
55
56 THREAD_SETMEM (self, cleanup_jmp_buf, ibuf->priv.data.prev);
57
58 THREAD_SETMEM (self, canceltype, ibuf->priv.data.canceltype);
59 if (ibuf->priv.data.canceltype == PTHREAD_CANCEL_ASYNCHRONOUS)
60 __pthread_testcancel ();
61}
62versioned_symbol (libc, ___pthread_unregister_cancel_restore,
63 __pthread_unregister_cancel_restore, GLIBC_2_34);
64
65#if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_3_3, GLIBC_2_34)
66compat_symbol (libpthread, ___pthread_unregister_cancel_restore,
67 __pthread_unregister_cancel_restore, GLIBC_2_3_3);
68#endif
69