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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) 2004-2005 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.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include <stdio.h>
#include "ompi/mpi/c/bindings.h"
#include "ompi/datatype/datatype.h"
#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
#pragma weak MPI_Get_count = PMPI_Get_count
#endif
#if OMPI_PROFILING_DEFINES
#include "ompi/mpi/c/profile/defines.h"
#endif
static const char FUNC_NAME[] = "MPI_Get_count";
int MPI_Get_count(MPI_Status *status, MPI_Datatype datatype, int *count)
{
size_t size = 0;
int rc = MPI_SUCCESS;
if (MPI_PARAM_CHECK) {
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
OMPI_CHECK_DATATYPE_FOR_RECV(rc, datatype, 1);
OMPI_ERRHANDLER_CHECK(rc, MPI_COMM_WORLD, rc, FUNC_NAME);
}
if( ompi_ddt_type_size( datatype, &size ) == MPI_SUCCESS ) {
if( size == 0 ) {
*count = 0;
} else {
*count = status->_count / size;
if( (int)((*count) * size) != status->_count )
*count = MPI_UNDEFINED;
}
}
return MPI_SUCCESS;
}
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