1/* Uncancelable versions of cancelable interfaces. Linux/NPTL version.
2 Copyright (C) 2003-2020 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
5
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
10
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <https://www.gnu.org/licenses/>. */
19
20#ifndef NOT_CANCEL_H
21# define NOT_CANCEL_H
22
23#include <fcntl.h>
24#include <sysdep.h>
25#include <errno.h>
26#include <unistd.h>
27#include <sys/syscall.h>
28#include <sys/wait.h>
29#include <time.h>
30
31/* Non cancellable open syscall. */
32__typeof (open) __open_nocancel;
33
34/* Non cancellable open syscall (LFS version). */
35__typeof (open64) __open64_nocancel;
36
37/* Non cancellable openat syscall. */
38__typeof (openat) __openat_nocancel;
39
40/* Non cacellable openat syscall (LFS version). */
41__typeof (openat64) __openat64_nocancel;
42
43/* Non cancellable read syscall. */
44__typeof (__read) __read_nocancel;
45
46/* Non cancellable pread syscall (LFS version). */
47__typeof (__pread64) __pread64_nocancel;
48
49/* Uncancelable write. */
50__typeof (__write) __write_nocancel;
51
52/* Uncancelable close. */
53__typeof (__close) __close_nocancel;
54
55/* Non cancellable close syscall that does not also set errno in case of
56 failure. */
57static inline void
58__close_nocancel_nostatus (int fd)
59{
60 __close_nocancel (fd);
61}
62
63/* Non cancellable writev syscall that does not also set errno in case of
64 failure. */
65static inline void
66__writev_nocancel_nostatus (int fd, const struct iovec *iov, int iovcnt)
67{
68 INTERNAL_SYSCALL_CALL (writev, fd, iov, iovcnt);
69}
70
71/* Uncancelable fcntl. */
72__typeof (__fcntl) __fcntl64_nocancel;
73
74#if IS_IN (libc) || IS_IN (rtld)
75hidden_proto (__open_nocancel)
76hidden_proto (__open64_nocancel)
77hidden_proto (__openat_nocancel)
78hidden_proto (__openat64_nocancel)
79hidden_proto (__read_nocancel)
80hidden_proto (__pread64_nocancel)
81hidden_proto (__write_nocancel)
82hidden_proto (__close_nocancel)
83hidden_proto (__fcntl64_nocancel)
84#endif
85
86#endif /* NOT_CANCEL_H */
87