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openmpi/ompi/mpi/c/pack_size.c

62 строки
2.0 KiB
C
Исходник Обычный вид История

/*
* Copyright (c) 2004-2005 The Trustees of Indiana University.
* All rights reserved.
* Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
* 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.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include <stdio.h>
#include "mpi/c/bindings.h"
#include "ompi/datatype/datatype.h"
#include "ompi/datatype/convertor.h"
#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
#pragma weak MPI_Pack_size = PMPI_Pack_size
#endif
#if OMPI_PROFILING_DEFINES
#include "mpi/c/profile/defines.h"
#endif
static const char FUNC_NAME[] = "MPI_Pack_size";
int MPI_Pack_size(int incount, MPI_Datatype datatype, MPI_Comm comm,
int *size)
{
int ret;
ompi_convertor_t local_convertor;
size_t length;
if (MPI_PARAM_CHECK) {
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
if (MPI_COMM_NULL == 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) {
return OMPI_ERRHANDLER_INVOKE(comm, MPI_ERR_TYPE, FUNC_NAME);
}
}
OBJ_CONSTRUCT( &local_convertor, ompi_convertor_t );
/* the resulting convertor will be set to the position ZERO */
ompi_convertor_copy_and_prepare_for_send( ompi_mpi_local_convertor, datatype, incount, NULL, &local_convertor );
ret = ompi_convertor_get_packed_size( &local_convertor, &length );
*size = (int)length;
OBJ_DESTRUCT( &local_convertor );
OMPI_ERRHANDLER_RETURN(ret, comm, MPI_ERR_UNKNOWN, FUNC_NAME);
}