1 /* Uncancelable versions of cancelable interfaces. Linux version.
2 Copyright (C) 2003, 2006 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.
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.
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.
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 <http://www.gnu.org/licenses/>. */
20 #include <sys/types.h>
23 /* Uncancelable open. */
24 #if defined __NR_openat && !defined __NR_open
25 #define open_not_cancel(name, flags, mode) \
26 INLINE_SYSCALL (openat, 4, AT_FDCWD, (const char *) (name), \
28 #define open_not_cancel_2(name, flags) \
29 INLINE_SYSCALL (openat, 3, AT_FDCWD, (const char *) (name), \
32 #define open_not_cancel(name, flags, mode) \
33 INLINE_SYSCALL (open, 3, (const char *) (name), (flags), (mode))
34 #define open_not_cancel_2(name, flags) \
35 INLINE_SYSCALL (open, 2, (const char *) (name), (flags))
38 /* Uncancelable openat. */
39 #if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt
40 extern int __openat_nocancel (int fd, const char *fname, int oflag,
41 mode_t mode) attribute_hidden;
42 extern int __openat64_nocancel (int fd, const char *fname, int oflag,
43 mode_t mode) attribute_hidden;
45 # define __openat_nocancel(fd, fname, oflag, mode) \
46 openat (fd, fname, oflag, mode)
47 # define __openat64_nocancel(fd, fname, oflag, mode) \
48 openat64 (fd, fname, oflag, mode)
51 #define openat_not_cancel(fd, fname, oflag, mode) \
52 __openat_nocancel (fd, fname, oflag, mode)
53 #define openat_not_cancel_3(fd, fname, oflag) \
54 __openat_nocancel (fd, fname, oflag, 0)
55 #define openat64_not_cancel(fd, fname, oflag, mode) \
56 __openat64_nocancel (fd, fname, oflag, mode)
57 #define openat64_not_cancel_3(fd, fname, oflag) \
58 __openat64_nocancel (fd, fname, oflag, 0)
60 /* Uncancelable close. */
61 #define close_not_cancel(fd) \
62 INLINE_SYSCALL (close, 1, fd)
63 #define close_not_cancel_no_status(fd) \
64 (void) ({ INTERNAL_SYSCALL_DECL (err); \
65 INTERNAL_SYSCALL (close, err, 1, (fd)); })
67 /* Uncancelable read. */
68 #define read_not_cancel(fd, buf, n) \
69 INLINE_SYSCALL (read, 3, (fd), (buf), (n))
71 /* Uncancelable write. */
72 #define write_not_cancel(fd, buf, n) \
73 INLINE_SYSCALL (write, 3, (fd), (buf), (n))
75 /* Uncancelable writev. */
76 #define writev_not_cancel_no_status(fd, iov, n) \
77 (void) ({ INTERNAL_SYSCALL_DECL (err); \
78 INTERNAL_SYSCALL (writev, err, 3, (fd), (iov), (n)); })
80 /* Uncancelable fcntl. */
81 #define fcntl_not_cancel(fd, cmd, val) \
82 __fcntl_nocancel (fd, cmd, val)
84 /* Uncancelable waitpid. */
86 # define waitpid_not_cancel(pid, stat_loc, options) \
87 INLINE_SYSCALL (waitpid, 3, pid, stat_loc, options)
89 # define waitpid_not_cancel(pid, stat_loc, options) \
90 INLINE_SYSCALL (wait4, 4, pid, stat_loc, options, NULL)
93 /* Uncancelable pause. */
95 # define pause_not_cancel() \
96 INLINE_SYSCALL (pause, 0)
98 # define pause_not_cancel() \
102 /* Uncancelable nanosleep. */
103 #ifdef __NR_nanosleep
104 # define nanosleep_not_cancel(requested_time, remaining) \
105 INLINE_SYSCALL (nanosleep, 2, requested_time, remaining)
107 # define nanosleep_not_cancel(requested_time, remaining) \
108 __nanosleep_nocancel (requested_time, remaining)
111 /* Uncancelable sigsuspend. */
112 #define sigsuspend_not_cancel(set) \
113 __sigsuspend_nocancel (set)