1 /* Uncancelable versions of cancelable interfaces. Linux/NPTL version.
2 Copyright (C) 2003-2021 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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 #ifndef NOT_CANCEL_H
20 # define NOT_CANCEL_H
21
22 #include <fcntl.h>
23 #include <sysdep.h>
24 #include <errno.h>
25 #include <unistd.h>
26 #include <sys/syscall.h>
27 #include <sys/wait.h>
28 #include <time.h>
29
30 /* Non cancellable open syscall. */
31 __typeof (open) __open_nocancel;
32
33 /* Non cancellable open syscall (LFS version). */
34 __typeof (open64) __open64_nocancel;
35
36 /* Non cancellable openat syscall. */
37 __typeof (openat) __openat_nocancel;
38
39 /* Non cacellable openat syscall (LFS version). */
40 __typeof (openat64) __openat64_nocancel;
41
42 /* Non cancellable read syscall. */
43 __typeof (__read) __read_nocancel;
44
45 /* Non cancellable pread syscall (LFS version). */
46 __typeof (__pread64) __pread64_nocancel;
47
48 /* Uncancelable write. */
49 __typeof (__write) __write_nocancel;
50
51 /* Uncancelable close. */
52 __typeof (__close) __close_nocancel;
53
54 /* Non cancellable close syscall that does not also set errno in case of
55 failure. */
56 static inline void
__close_nocancel_nostatus(int fd)57 __close_nocancel_nostatus (int fd)
58 {
59 __close_nocancel (fd);
60 }
61
62 /* Non cancellable writev syscall that does not also set errno in case of
63 failure. */
64 static inline void
__writev_nocancel_nostatus(int fd,const struct iovec * iov,int iovcnt)65 __writev_nocancel_nostatus (int fd, const struct iovec *iov, int iovcnt)
66 {
67 INTERNAL_SYSCALL_CALL (writev, fd, iov, iovcnt);
68 }
69
70 /* Uncancelable fcntl. */
71 __typeof (__fcntl) __fcntl64_nocancel;
72
73 #if IS_IN (libc) || IS_IN (rtld)
74 hidden_proto (__open_nocancel)
75 hidden_proto (__open64_nocancel)
76 hidden_proto (__openat_nocancel)
77 hidden_proto (__openat64_nocancel)
78 hidden_proto (__read_nocancel)
79 hidden_proto (__pread64_nocancel)
80 hidden_proto (__write_nocancel)
81 hidden_proto (__close_nocancel)
82 hidden_proto (__fcntl64_nocancel)
83 #endif
84
85 #endif /* NOT_CANCEL_H */
86