uio.h

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/* KallistiOS ##version##
 
   sys/uio.h
   Copyright (C) 2017 Lawrence Sebald
 
*/
 
/** \file    sys/uio.h
    \brief   Header for vector I/O.
    \ingroup vfs_posix
 
    This file contains definitions for vector I/O operations, as specified by
    the POSIX 2008 specification. Full vector-based I/O is not supported for
    file operations, but the stuff in here is still useful elsewhere.
 
    \author Lawrence Sebald
*/
 
#ifndef __SYS_UIO_H
#define __SYS_UIO_H
 
#include <sys/cdefs.h>
#include <sys/types.h>
 
__BEGIN_DECLS
 
/** \addtogroup vfs_posix
    @{
*/
 
/** \brief  I/O vector structure
    \headerfile sys/uio.h
*/
struct iovec {
    /** \brief  Base address of memory for I/O. */
    void * iov_base;
    /** \brief  Size of memory pointed to by iov_base. */
    size_t iov_len;
};
 
/** \brief  Old alias for the maximum length of an iovec. */
#define UIO_MAXIOV IOV_MAX
 
/** @} */
 
__END_DECLS
 
#endif /* __SYS_UIO_H */