| /* Implementation limits related to sys/uio.h - Linux version. |
| Copyright (C) 2017-2019 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/>. */ |
| |
| #ifndef _BITS_UIO_LIM_H |
| #define _BITS_UIO_LIM_H 1 |
| |
| /* Maximum length of the 'struct iovec' array in a single call to |
| readv or writev. |
| |
| This macro has different values in different kernel versions. The |
| latest versions of the kernel use 1024 and this is good choice. Since |
| the C library implementation of readv/writev is able to emulate the |
| functionality even if the currently running kernel does not support |
| this large value the readv/writev call will not fail because of this. */ |
| #define __IOV_MAX 1024 |
| |
| #endif |
