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