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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 | /* Uncancelable versions of cancelable interfaces. Linux version. Copyright (C) 2003, 2006 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2003. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ #include <sys/types.h> #include <sysdep.h> /* Uncancelable open. */ #if defined __NR_openat && !defined __NR_open #define open_not_cancel(name, flags, mode) \ INLINE_SYSCALL (openat, 4, (int) (AT_FDCWD), (const char *) (name), \ (flags), (mode)) #define open_not_cancel_2(name, flags) \ INLINE_SYSCALL (openat, 3, (int) (AT_FDCWD), (const char *) (name), \ (flags)) #else #define open_not_cancel(name, flags, mode) \ INLINE_SYSCALL (open, 3, (const char *) (name), (flags), (mode)) #define open_not_cancel_2(name, flags) \ INLINE_SYSCALL (open, 2, (const char *) (name), (flags)) #endif /* Uncancelable openat. */ #if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt extern int __openat_nocancel (int fd, const char *fname, int oflag, mode_t mode) attribute_hidden; extern int __openat64_nocancel (int fd, const char *fname, int oflag, mode_t mode) attribute_hidden; #else # define __openat_nocancel(fd, fname, oflag, mode) \ openat (fd, fname, oflag, mode) # define __openat64_nocancel(fd, fname, oflag, mode) \ openat64 (fd, fname, oflag, mode) #endif #define openat_not_cancel(fd, fname, oflag, mode) \ __openat_nocancel (fd, fname, oflag, mode) #define openat_not_cancel_3(fd, fname, oflag) \ __openat_nocancel (fd, fname, oflag, 0) #define openat64_not_cancel(fd, fname, oflag, mode) \ __openat64_nocancel (fd, fname, oflag, mode) #define openat64_not_cancel_3(fd, fname, oflag) \ __openat64_nocancel (fd, fname, oflag, 0) /* Uncancelable close. */ #define close_not_cancel(fd) \ INLINE_SYSCALL (close, 1, fd) #define close_not_cancel_no_status(fd) \ (void) ({ INTERNAL_SYSCALL_DECL (err); \ INTERNAL_SYSCALL (close, err, 1, (fd)); }) /* Uncancelable read. */ #define read_not_cancel(fd, buf, n) \ INLINE_SYSCALL (read, 3, (fd), (buf), (n)) /* Uncancelable write. */ #define write_not_cancel(fd, buf, n) \ INLINE_SYSCALL (write, 3, (fd), (buf), (n)) /* Uncancelable writev. */ #define writev_not_cancel_no_status(fd, iov, n) \ (void) ({ INTERNAL_SYSCALL_DECL (err); \ INTERNAL_SYSCALL (writev, err, 3, (fd), (iov), (n)); }) /* Uncancelable fcntl. */ #define fcntl_not_cancel(fd, cmd, val) \ __fcntl_nocancel (fd, cmd, val) /* Uncancelable waitpid. */ #ifdef __NR_waitpid # define waitpid_not_cancel(pid, stat_loc, options) \ INLINE_SYSCALL (waitpid, 3, pid, stat_loc, options) #else # define waitpid_not_cancel(pid, stat_loc, options) \ INLINE_SYSCALL (wait4, 4, pid, stat_loc, options, NULL) #endif /* Uncancelable pause. */ #ifdef __NR_pause # define pause_not_cancel() \ INLINE_SYSCALL (pause, 0) #else # define pause_not_cancel() \ __pause_nocancel () #endif /* Uncancelable nanosleep. */ #ifdef __NR_nanosleep # define nanosleep_not_cancel(requested_time, remaining) \ INLINE_SYSCALL (nanosleep, 2, requested_time, remaining) #else # define nanosleep_not_cancel(requested_time, remaining) \ __nanosleep_nocancel (requested_time, remaining) #endif /* Uncancelable sigsuspend. */ #define sigsuspend_not_cancel(set) \ __sigsuspend_nocancel (set) |