/*
 * Copyright (C) by Argonne National Laboratory
 *     See COPYRIGHT in top-level directory
 */

#include "ad_nfs.h"

#ifdef ROMIO_HAVE_WORKING_AIO
/* nearly identical to ADIOI_GEN_IreadContig, except we lock around I/O */
void ADIOI_NFS_IreadContig(ADIO_File fd, void *buf, MPI_Aint count,
                           MPI_Datatype datatype, int file_ptr_type,
                           ADIO_Offset offset, ADIO_Request * request, int *error_code)
{
    MPI_Count len, typesize;
    int aio_errno = 0;
    static char myname[] = "ADIOI_NFS_IREADCONTIG";

    MPI_Type_size_x(datatype, &typesize);
    len = count * typesize;

    if (file_ptr_type == ADIO_INDIVIDUAL)
        offset = fd->fp_ind;
    aio_errno = ADIOI_NFS_aio(fd, buf, len, offset, 0, request);
    if (file_ptr_type == ADIO_INDIVIDUAL)
        fd->fp_ind += len;

    fd->fp_sys_posn = -1;

    if (aio_errno != 0) {
        /* --BEGIN ERROR HANDLING-- */
        MPIO_ERR_CREATE_CODE_ERRNO(myname, aio_errno, error_code);
        return;
        /* --END ERROR HANDLING-- */
    } else
        *error_code = MPI_SUCCESS;
}
#endif
