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/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2011 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2008-2014 University of Houston. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "fbtl_plfs.h"
#include "mpi.h"
#include <unistd.h>
#include "ompi/constants.h"
#include "ompi/mca/fbtl/fbtl.h"
ssize_t mca_fbtl_plfs_preadv (mca_io_ompio_file_t *fh )
{
Plfs_fd *pfd = fh->f_fs_ptr;
plfs_error_t plfs_ret;
ssize_t total_bytes_read=0;
int i;
ssize_t bytes_read;
if (NULL == fh->f_io_array) {
return OMPI_ERROR;
}
for (i=0 ; i<fh->f_num_of_io_entries ; i++) {
plfs_ret = plfs_read( pfd, fh->f_io_array[i].memory_address, fh->f_io_array[i].length,
(off_t )fh->f_io_array[i].offset, &bytes_read );
if (PLFS_SUCCESS != plfs_ret) {
opal_output(0, "fbtl_plfs_preadv: Error in plfs_read:\n%s\n", strplfserr(plfs_ret));
return OMPI_ERROR;
}
if (bytes_read < 0)
return OMPI_ERROR;
total_bytes_read += bytes_read;
}
return total_bytes_read;
}
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