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/*
* Copyright (c) 2001-2002 The Trustees of Indiana University.
* All rights reserved.
* Copyright (c) 1998-2001 University of Notre Dame.
* All rights reserved.
* Copyright (c) 1994-1998 The Ohio State University.
* All rights reserved.
*
* This file is part of the LAM/MPI software package. For license
* information, see the LICENSE file in the top level directory of the
* LAM/MPI source distribution.
*
* $HEADER$
*
* $Id: tgetconts.c,v 1.5 2002/12/16 16:23:31 jsquyres Exp $
*
* Function: - get datatype contents
* Accepts: - MPI datatype
* - number of integers
* - number of addresses
* - number of datatypes
* - array of integers (out)
* - array of addresses (out)
* - array of datatypes (out)
* Returns: - MPI_SUCCESS or error code
*/
#include <string.h>
#include <blktype.h>
#include <mpi.h>
#include <mpisys.h>
/*@
MPI_Type_get_contents - Get datatype contents
Input Parameter:
+ type - Datatype to access
. nints - Number of elements in ints
. naddrs - Number of elments in addrs
- ndtypes - Number of elements in dtypes
Output Parameters:
+ ints - Contains integer arguments used in constructing datatype
. addrs - Contains address arguments used in constructing datatype
- dtypes - Contains datatype arguments used in constructing datatype
.N fortran
.N Errors
.N MPI_SUCCESS
.N MPI_ERR_ARG
.N MPI_ERR_TYPE
.seealso MPI_Type_get_envelope(3)
.N WEB
@*/
int
MPI_Type_get_contents(MPI_Datatype type, int nints, int naddrs,
int ndtypes, int *ints, MPI_Aint *addrs,
MPI_Datatype *dtypes)
{
int i;
lam_initerr_m();
lam_setfunc_m(BLKMPITGETCONT);
/*
* Check arguments.
*/
if (type == MPI_DATATYPE_NULL) {
return(lam_errfunc(MPI_COMM_WORLD, BLKMPITGETCONT,
lam_mkerr(MPI_ERR_TYPE, EINVAL)));
}
if (dtypes == 0) {
return(lam_errfunc(MPI_COMM_WORLD, BLKMPITGETCONT,
lam_mkerr(MPI_ERR_ARG, EINVAL)));
}
if (type->dt_flags & LAM_DTISDUP) {
dtypes[0] = (MPI_Datatype) type->dt_uargs;
dtypes[0]->dt_refcount++;
}
else if (type->dt_flags & LAM_DTISRESIZE) {
dtypes[0] = (MPI_Datatype) type->dt_uargs;
addrs[0] = type->dt_lower;
addrs[1] = type->dt_upper - type->dt_lower;
dtypes[0]->dt_refcount++;
}
else {
switch (type->dt_format) {
case LAM_DTBASIC:
return(lam_errfunc(MPI_COMM_WORLD, BLKMPITGETCONT,
lam_mkerr(MPI_ERR_TYPE, EINVAL)));
case LAM_DTCONTIG:
dtypes[0] = type->dt_dtype;
ints[0] = type->dt_count;
dtypes[0]->dt_refcount++;
break;
case LAM_DTSTRUCT:
case LAM_DTSTRUCTCREAT:
ints[0] = type->dt_count;
for (i = 0; i < ints[0]; i++) {
ints[i + 1] = type->dt_lengths[i];
addrs[i] = type->dt_disps[i];
dtypes[i] = type->dt_dtypes[i];
dtypes[i]->dt_refcount++;
}
break;
case LAM_DTINDEXED:
dtypes[0] = type->dt_dtype;
dtypes[0]->dt_refcount++;
ints[0] = type->dt_count;
for (i = 0; i < ints[0]; i++) {
ints[i + 1] = type->dt_lengths[i];
ints[ints[0] + 1 + i] = (int) type->dt_disps[i];
}
break;
case LAM_DTHINDEXED:
case LAM_DTHINDEXEDCREAT:
dtypes[0] = type->dt_dtype;
ints[0] = type->dt_count;
for (i = 0; i < ints[0]; i++) {
ints[i + 1] = type->dt_lengths[i];
addrs[i] = type->dt_disps[i];
}
break;
case LAM_DTVECTOR:
dtypes[0] = type->dt_dtype;
dtypes[0]->dt_refcount++;
ints[0] = type->dt_count;
ints[1] = type->dt_length;
ints[2] = type->dt_stride;
break;
case LAM_DTHVECTOR:
case LAM_DTHVECTORCREAT:
dtypes[0] = type->dt_dtype;
dtypes[0]->dt_refcount++;
ints[0] = type->dt_count;
ints[1] = type->dt_length;
addrs[0] = type->dt_stride;
break;
case LAM_DTSUBARRAY:
dtypes[0] = type->dt_dtype;
dtypes[0]->dt_refcount++;
lam_memcpy((char *) ints, (char *) type->dt_uargs,
(3 * type->dt_uargs[0] + 2) * sizeof(int));
break;
case LAM_DTDARRAY:
dtypes[0] = type->dt_dtype;
dtypes[0]->dt_refcount++;
lam_memcpy((char *) ints, (char *) type->dt_uargs,
(4 * type->dt_uargs[2] + 4) * sizeof(int));
break;
case LAM_DTINDEXEDBLK:
default:
return(lam_errfunc(MPI_COMM_WORLD, BLKMPITGETCONT,
lam_mkerr(MPI_ERR_TYPE, EINVAL)));
}
}
lam_resetfunc_m(BLKMPITGETCONT);
return(MPI_SUCCESS);
}
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