/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
/*
*
* (C) 2001 by Argonne National Laboratory.
* See COPYRIGHT in top-level directory.
*/
#include "mpiimpl.h"
#include <limits.h>
/* -- Begin Profiling Symbol Block for routine MPI_Type_size */
#if defined(HAVE_PRAGMA_WEAK)
#pragma weak MPI_Type_size = PMPI_Type_size
#elif defined(HAVE_PRAGMA_HP_SEC_DEF)
#pragma _HP_SECONDARY_DEF PMPI_Type_size MPI_Type_size
#elif defined(HAVE_PRAGMA_CRI_DUP)
#pragma _CRI duplicate MPI_Type_size as PMPI_Type_size
#elif defined(HAVE_WEAK_ATTRIBUTE)
int MPI_Type_size(MPI_Datatype datatype, int *size) __attribute__ ((weak, alias("PMPI_Type_size")));
#endif
/* -- End Profiling Symbol Block */
/* Define MPICH_MPI_FROM_PMPI if weak symbols are not supported to build
the MPI routines */
#ifndef MPICH_MPI_FROM_PMPI
#undef MPI_Type_size
#define MPI_Type_size PMPI_Type_size
#endif
#undef FUNCNAME
#define FUNCNAME MPI_Type_size
#undef FCNAME
#define FCNAME MPL_QUOTE(FUNCNAME)
/*@
MPI_Type_size - Return the number of bytes occupied by entries
in the datatype
Input Parameters:
. datatype - datatype (handle)
Output Parameters:
. size - datatype size (integer)
.N SignalSafe
.N Fortran
.N Errors
.N MPI_SUCCESS
.N MPI_ERR_TYPE
.N MPI_ERR_ARG
@*/
int MPI_Type_size(MPI_Datatype datatype, int *size)
{
int mpi_errno = MPI_SUCCESS;
MPI_Count size_x = MPI_UNDEFINED;
MPIR_FUNC_TERSE_STATE_DECL(MPID_STATE_MPI_TYPE_SIZE);
MPIR_ERRTEST_INITIALIZED_ORDIE();
MPIR_FUNC_TERSE_ENTER(MPID_STATE_MPI_TYPE_SIZE);
/* Validate parameters, especially handles needing to be converted */
#ifdef HAVE_ERROR_CHECKING
{
MPID_BEGIN_ERROR_CHECKS;
{
MPIR_ERRTEST_DATATYPE(datatype, "datatype", mpi_errno);
}
MPID_END_ERROR_CHECKS;
}
#endif /* HAVE_ERROR_CHECKING */
/* If this is a built-in datatype, then get the size out of the handle */
if (HANDLE_GET_KIND(datatype) == HANDLE_KIND_BUILTIN) {
MPIR_Datatype_get_size_macro(datatype, *size);
goto fn_exit;
}
/* Validate parameters and objects (post conversion) */
#ifdef HAVE_ERROR_CHECKING
{
MPID_BEGIN_ERROR_CHECKS;
{
MPIR_Datatype *datatype_ptr = NULL;
/* Convert MPI object handles to object pointers */
MPIR_Datatype_get_ptr(datatype, datatype_ptr);
/* Validate datatype_ptr */
MPIR_Datatype_valid_ptr(datatype_ptr, mpi_errno);
if (mpi_errno)
goto fn_fail;
}
MPID_END_ERROR_CHECKS;
}
#endif /* HAVE_ERROR_CHECKING */
/* ... body of routine ... */
mpi_errno = MPIR_Type_size_x_impl(datatype, &size_x);
if (mpi_errno)
MPIR_ERR_POP(mpi_errno);
MPIR_Assert(size_x >= 0);
/* handle overflow: see MPI-3 p.104 */
*size = (size_x > INT_MAX) ? MPI_UNDEFINED : (int) size_x;
/* ... end of body of routine ... */
fn_exit:
MPIR_FUNC_TERSE_EXIT(MPID_STATE_MPI_TYPE_SIZE);
return mpi_errno;
/* --BEGIN ERROR HANDLING-- */
fn_fail:
{
mpi_errno =
MPIR_Err_create_code(mpi_errno, MPIR_ERR_RECOVERABLE, FCNAME, __LINE__, MPI_ERR_OTHER,
"**mpi_type_size", "**mpi_type_size %D %p", datatype, size);
}
mpi_errno = MPIR_Err_return_comm(NULL, FCNAME, mpi_errno);
goto fn_exit;
/* --END ERROR HANDLING-- */
}