| xf.li | bdd93d5 | 2023-05-12 07:10:14 -0700 | [diff] [blame] | 1 | /* sendfile -- copy data directly from one file descriptor to another |
| 2 | Copyright (C) 1998-2016 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 | <http://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #ifndef _SYS_SENDFILE_H |
| 20 | #define _SYS_SENDFILE_H 1 |
| 21 | |
| 22 | #include <features.h> |
| 23 | #include <sys/types.h> |
| 24 | |
| 25 | __BEGIN_DECLS |
| 26 | |
| 27 | /* Send up to COUNT bytes from file associated with IN_FD starting at |
| 28 | *OFFSET to descriptor OUT_FD. Set *OFFSET to the IN_FD's file position |
| 29 | following the read bytes. If OFFSET is a null pointer, use the normal |
| 30 | file position instead. Return the number of written bytes, or -1 in |
| 31 | case of error. */ |
| 32 | #ifndef __USE_FILE_OFFSET64 |
| 33 | extern ssize_t sendfile (int __out_fd, int __in_fd, off_t *__offset, |
| 34 | size_t __count) __THROW; |
| 35 | #else |
| 36 | # ifdef __REDIRECT_NTH |
| 37 | extern ssize_t __REDIRECT_NTH (sendfile, |
| 38 | (int __out_fd, int __in_fd, __off64_t *__offset, |
| 39 | size_t __count), sendfile64); |
| 40 | # else |
| 41 | # define sendfile sendfile64 |
| 42 | # endif |
| 43 | #endif |
| 44 | #ifdef __USE_LARGEFILE64 |
| 45 | extern ssize_t sendfile64 (int __out_fd, int __in_fd, __off64_t *__offset, |
| 46 | size_t __count) __THROW; |
| 47 | #endif |
| 48 | |
| 49 | __END_DECLS |
| 50 | |
| 51 | #endif /* sys/sendfile.h */ |