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