diff options
author | Eric Andersen <andersen@codepoet.org> | 2001-02-21 18:58:30 +0000 |
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committer | Eric Andersen <andersen@codepoet.org> | 2001-02-21 18:58:30 +0000 |
commit | 36970cc69149ef3a3f32d57663a14adedaebcbb9 (patch) | |
tree | a82e8df0bf9a6771c4b27f9f15c5a2844e8f81ea /libc/sysdeps/linux/sh/bits/uio.h | |
parent | 93ccb0356b10af44f620ec035fb76fa8a1165c22 (diff) |
Add an SH port done by Jean-Yves Avenard of Hewlett-Packard - Embedded
and Personal Systems. Thanks!
-Erik
Diffstat (limited to 'libc/sysdeps/linux/sh/bits/uio.h')
-rw-r--r-- | libc/sysdeps/linux/sh/bits/uio.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/sh/bits/uio.h b/libc/sysdeps/linux/sh/bits/uio.h new file mode 100644 index 000000000..38ac17baa --- /dev/null +++ b/libc/sysdeps/linux/sh/bits/uio.h @@ -0,0 +1,46 @@ +/* Copyright (C) 1996, 1997 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 Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#ifndef _SYS_UIO_H +# error "Never include <bits/uio.h> directly; use <sys/uio.h> instead." +#endif + + +#include <sys/types.h> + + +/* We should normally use the Linux kernel header file to define this + type and macros but this calls for trouble because of the header + includes other kernel headers. */ + +/* Size of object which can be written atomically. + + This macro has different values in different kernel versions. The + latest versions of ther 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 UIO_MAXIOV 1024 + + +/* Structure for scatter/gather I/O. */ +struct iovec + { + void *iov_base; /* Pointer to data. */ + size_t iov_len; /* Length of data. */ + }; |