| /* Copyright (C) 2009-2018 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| 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/uio.h> |
| #include <sysdep-cancel.h> |
| |
| #ifndef __OFF_T_MATCHES_OFF64_T |
| |
| # ifdef __ASSUME_PREADV |
| |
| # ifndef __NR_preadv |
| # define __NR_preadv __NR_preadv64 |
| # endif |
| |
| ssize_t |
| preadv (int fd, const struct iovec *vector, int count, off_t offset) |
| { |
| return SYSCALL_CANCEL (preadv, fd, vector, count, LO_HI_LONG (offset)); |
| } |
| # else |
| static ssize_t __atomic_preadv_replacement (int, const struct iovec *, |
| int, off_t); |
| ssize_t |
| preadv (int fd, const struct iovec *vector, int count, off_t offset) |
| { |
| # ifdef __NR_preadv |
| ssize_t result = SYSCALL_CANCEL (preadv, fd, vector, count, |
| LO_HI_LONG (offset)); |
| if (result >= 0 || errno != ENOSYS) |
| return result; |
| # endif |
| return __atomic_preadv_replacement (fd, vector, count, offset); |
| } |
| # define PREADV static __atomic_preadv_replacement |
| # define PREAD __pread |
| # define OFF_T off_t |
| # include <sysdeps/posix/preadv_common.c> |
| # endif /* __ASSUME_PREADV */ |
| |
| libc_hidden_def (preadv) |
| #endif |
