projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 4e778151 AZ |
1 | /* Copyright (C) 2016 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. | |
| e109c612 | 3 | |
| 4e778151 AZ |
4 | The GNU C Library is free software; you can redistribute it and/or |
| 5 | modify it under the terms of the GNU Lesser General Public | |
| 6 | License as published by the Free Software Foundation; either | |
| 7 | version 2.1 of the License, or (at your option) any later version. | |
| 8 | ||
| 9 | The GNU C Library is distributed in the hope that it will be useful, | |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 12 | Lesser General Public License for more details. | |
| 13 | ||
| 14 | You should have received a copy of the GNU Lesser General Public | |
| 15 | License along with the GNU C Library; if not, see | |
| 16 | <http://www.gnu.org/licenses/>. */ | |
| 17 | ||
| 18 | #include <sys/uio.h> | |
| 19 | #include <sysdep-cancel.h> | |
| 20 | ||
| 21 | #ifdef __ASSUME_PREADV | |
| 22 | ||
| 23 | # ifndef __NR_preadv64 | |
| 24 | # define __NR_preadv64 __NR_preadv | |
| 25 | # endif | |
| 26 | ||
| 27 | ssize_t | |
| 28 | preadv64 (int fd, const struct iovec *vector, int count, off64_t offset) | |
| 29 | { | |
| 30 | return SYSCALL_CANCEL (preadv64, fd, vector, count, | |
| 31 | __ALIGNMENT_ARG SYSCALL_LL64 (offset)); | |
| 32 | } | |
| 33 | #else | |
| 34 | static ssize_t __atomic_preadv64_replacement (int, const struct iovec *, | |
| 35 | int, off64_t) internal_function; | |
| 36 | ssize_t | |
| 37 | preadv64 (int fd, const struct iovec *vector, int count, off64_t offset) | |
| 38 | { | |
| 39 | #ifdef __NR_preadv64 | |
| 40 | ssize_t result = SYSCALL_CANCEL (preadv64, fd, vector, count, | |
| 41 | __ALIGNMENT_ARG SYSCALL_LL64 (offset)); | |
| 42 | if (result >= 0 || errno != ENOSYS) | |
| 43 | return result; | |
| 44 | #endif | |
| 45 | return __atomic_preadv64_replacement (fd, vector, count, offset); | |
| 46 | } | |
| 47 | # define PREADV static internal_function __atomic_preadv64_replacement | |
| 48 | # define PREAD __pread64 | |
| 49 | # define OFF_T off64_t | |
| 50 | # include <sysdeps/posix/preadv.c> | |
| 51 | #endif | |
| 52 | ||
| 53 | #if __WORDSIZE == 64 && !defined (__ASSUME_OFF_DIFF_OFF64) | |
| 54 | strong_alias (preadv64, preadv) | |
| 55 | #endif |