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/**
* @file
*
* @brief Read a Vector
* @ingroup libcsupport
*/
/*
* COPYRIGHT (c) 1989-2011.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <sys/uio.h>
#include <rtems/libio_.h>
/**
* readv() - POSIX 1003.1 - Read a Vector
*
* OpenGroup URL:
*
* http://www.opengroup.org/onlinepubs/009695399/functions/readv.html
*/
ssize_t readv(
int fd,
const struct iovec *iov,
int iovcnt
)
{
ssize_t total;
rtems_libio_t *iop;
total = rtems_libio_iovec_eval( fd, iov, iovcnt, LIBIO_FLAGS_READ, &iop );
if ( total > 0 ) {
total = ( *iop->pathinfo.handlers->readv_h )( iop, iov, iovcnt, total );
}
return total;
}
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