1 | /* Uncancelable versions of cancelable interfaces. Linux/NPTL version. |
2 | Copyright (C) 2003-2022 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 |
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 |
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 | |