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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) 2004-2016 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) 2008-2018 University of Houston. All rights reserved.
* Copyright (c) 2015-2018 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* Copyright (c) 2016-2017 IBM Corporation. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "ompi/communicator/communicator.h"
#include "ompi/info/info.h"
#include "ompi/file/file.h"
#include "ompi/mca/pml/pml.h"
#include "opal/datatype/opal_convertor.h"
#include "ompi/datatype/ompi_datatype.h"
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include "io_ompio.h"
static int datatype_duplicate (ompi_datatype_t *oldtype, ompi_datatype_t **newtype );
static int datatype_duplicate (ompi_datatype_t *oldtype, ompi_datatype_t **newtype )
{
ompi_datatype_t *type;
if( ompi_datatype_is_predefined(oldtype) ) {
OBJ_RETAIN(oldtype);
*newtype = oldtype;
return OMPI_SUCCESS;
}
if ( OMPI_SUCCESS != ompi_datatype_duplicate (oldtype, &type)){
ompi_datatype_destroy (&type);
return MPI_ERR_INTERN;
}
ompi_datatype_set_args( type, 0, NULL, 0, NULL, 1, &oldtype, MPI_COMBINER_DUP );
*newtype = type;
return OMPI_SUCCESS;
}
int mca_io_ompio_file_set_view (ompi_file_t *fp,
OMPI_MPI_OFFSET_TYPE disp,
ompi_datatype_t *etype,
ompi_datatype_t *filetype,
const char *datarep,
opal_info_t *info)
{
int ret=OMPI_SUCCESS;
mca_common_ompio_data_t *data;
ompio_file_t *fh;
if ( (strcmp(datarep, "native") && strcmp(datarep, "NATIVE") &&
strcmp(datarep, "external32") && strcmp(datarep, "EXTERNAL32"))) {
return MPI_ERR_UNSUPPORTED_DATAREP;
}
data = (mca_common_ompio_data_t *) fp->f_io_selected_data;
/* we need to call the internal file set view twice: once for the individual
file pointer, once for the shared file pointer (if it is existent)
*/
fh = &data->ompio_fh;
if ( MPI_DISPLACEMENT_CURRENT == disp &&
!(fh->f_amode & MPI_MODE_SEQUENTIAL ) ) {
// MPI_DISPLACEMENT_CURRENT is only valid if amode is MPI_MODE_SEQUENTIAL
return MPI_ERR_DISP;
}
OPAL_THREAD_LOCK(&fp->f_lock);
ret = mca_common_ompio_set_view(fh, disp, etype, filetype, datarep, info);
OPAL_THREAD_UNLOCK(&fp->f_lock);
return ret;
}
int mca_io_ompio_file_get_view (struct ompi_file_t *fp,
OMPI_MPI_OFFSET_TYPE *disp,
struct ompi_datatype_t **etype,
struct ompi_datatype_t **filetype,
char *datarep)
{
mca_common_ompio_data_t *data;
ompio_file_t *fh;
data = (mca_common_ompio_data_t *) fp->f_io_selected_data;
fh = &data->ompio_fh;
OPAL_THREAD_LOCK(&fp->f_lock);
*disp = fh->f_disp;
datatype_duplicate (fh->f_etype, etype);
datatype_duplicate (fh->f_orig_filetype, filetype);
strcpy (datarep, fh->f_datarep);
OPAL_THREAD_UNLOCK(&fp->f_lock);
return OMPI_SUCCESS;
}
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