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openmpi/ompi/mpi/c/pack_size.c
2016-11-22 15:03:20 -08:00

79 строки
2.7 KiB
C

/*
* Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2005 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2008 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) 2006 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2015 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include <stdio.h>
#include "ompi/mpi/c/bindings.h"
#include "ompi/runtime/params.h"
#include "ompi/communicator/communicator.h"
#include "ompi/errhandler/errhandler.h"
#include "ompi/datatype/ompi_datatype.h"
#include "opal/datatype/opal_convertor.h"
#include "ompi/memchecker.h"
#if OMPI_BUILD_MPI_PROFILING
#if OPAL_HAVE_WEAK_SYMBOLS
#pragma weak MPI_Pack_size = PMPI_Pack_size
#endif
#define MPI_Pack_size PMPI_Pack_size
#endif
static const char FUNC_NAME[] = "MPI_Pack_size";
int MPI_Pack_size(int incount, MPI_Datatype datatype, MPI_Comm comm,
int *size)
{
opal_convertor_t local_convertor;
size_t length;
MEMCHECKER(
memchecker_datatype(datatype);
memchecker_comm(comm);
);
if (MPI_PARAM_CHECK) {
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
if (ompi_comm_invalid(comm)) {
return OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, MPI_ERR_COMM,
FUNC_NAME);
} else if (NULL == size) {
return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_ARG, FUNC_NAME);
} else if (MPI_DATATYPE_NULL == datatype || NULL == datatype) {
return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_TYPE, FUNC_NAME);
}
}
OPAL_CR_ENTER_LIBRARY();
OBJ_CONSTRUCT( &local_convertor, opal_convertor_t );
/* the resulting convertor will be set to the position ZERO */
opal_convertor_copy_and_prepare_for_send( ompi_mpi_local_convertor, &(datatype->super),
incount, NULL, 0, &local_convertor );
opal_convertor_get_packed_size( &local_convertor, &length );
*size = (int)length;
OBJ_DESTRUCT( &local_convertor );
OPAL_CR_EXIT_LIBRARY();
return MPI_SUCCESS;
}