/* -*- 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"

/* -- Begin Profiling Symbol Block for routine MPI_Type_get_true_extent */

#if defined(HAVE_PRAGMA_WEAK)

#pragma weak MPI_Type_get_true_extent = PMPI_Type_get_true_extent

#elif defined(HAVE_PRAGMA_HP_SEC_DEF)

#pragma _HP_SECONDARY_DEF PMPI_Type_get_true_extent  MPI_Type_get_true_extent

#elif defined(HAVE_PRAGMA_CRI_DUP)

#pragma _CRI duplicate MPI_Type_get_true_extent as PMPI_Type_get_true_extent

#elif defined(HAVE_WEAK_ATTRIBUTE)

int MPI_Type_get_true_extent(MPI_Datatype datatype, MPI_Aint *true_lb, MPI_Aint *true_extent) __attribute__((weak,alias("PMPI_Type_get_true_extent")));

#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_get_true_extent

#define MPI_Type_get_true_extent PMPI_Type_get_true_extent

#undef FUNCNAME

#define FUNCNAME MPIR_Type_get_true_extent_impl

#undef FCNAME

#define FCNAME MPL_QUOTE(FUNCNAME)

void MPIR_Type_get_true_extent_impl(MPI_Datatype datatype, MPI_Aint *true_lb, MPI_Aint *true_extent)

{

    MPI_Count true_lb_x, true_extent_x;

    MPIR_Type_get_true_extent_x_impl(datatype, &true_lb_x, &true_extent_x);

    *true_lb = (true_lb_x > MPIR_AINT_MAX) ? MPI_UNDEFINED : (MPI_Aint)true_lb_x;

    *true_extent = (true_extent_x > MPIR_AINT_MAX) ? MPI_UNDEFINED : (MPI_Aint)true_extent_x;

}

#endif

#undef FUNCNAME

#define FUNCNAME MPI_Type_get_true_extent

#undef FCNAME

#define FCNAME MPL_QUOTE(FUNCNAME)

/*@

   MPI_Type_get_true_extent - Get the true lower bound and extent for a

     datatype

Input Parameters:

. datatype - datatype to get information on (handle)

Output Parameters:

+ true_lb - true lower bound of datatype (address integer)

- true_extent - true size of datatype (address integer)

.N SignalSafe

.N Fortran

.N Errors

.N MPI_SUCCESS

.N MPI_ERR_TYPE

.N MPI_ERR_ARG

@*/

int MPI_Type_get_true_extent(MPI_Datatype datatype, MPI_Aint *true_lb,

			     MPI_Aint *true_extent)

{

    int mpi_errno = MPI_SUCCESS;

    MPID_MPI_STATE_DECL(MPID_STATE_MPI_TYPE_GET_TRUE_EXTENT);

    MPIR_ERRTEST_INITIALIZED_ORDIE();

    MPID_MPI_FUNC_ENTER(MPID_STATE_MPI_TYPE_GET_TRUE_EXTENT);

    /* 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

    /* Validate parameters and objects (post conversion) */

#   ifdef HAVE_ERROR_CHECKING

    {

        MPID_BEGIN_ERROR_CHECKS;

        {

            MPID_Datatype *datatype_ptr = NULL;

            /* Convert MPI object handles to object pointers */

            MPID_Datatype_get_ptr(datatype, datatype_ptr);

            /* Validate datatype_ptr */

            MPID_Datatype_valid_ptr(datatype_ptr, mpi_errno);

            if (mpi_errno) goto fn_fail;

        }

        MPID_END_ERROR_CHECKS;

    }

#   endif /* HAVE_ERROR_CHECKING */

    /* ... body of routine ...  */

    MPIR_Type_get_true_extent_impl(datatype, true_lb, true_extent);

    /* ... end of body of routine ... */

#ifdef HAVE_ERROR_CHECKING

  fn_exit:

#endif

    MPID_MPI_FUNC_EXIT(MPID_STATE_MPI_TYPE_GET_TRUE_EXTENT);

    return mpi_errno;

    /* --BEGIN ERROR HANDLING-- */

#   ifdef HAVE_ERROR_CHECKING

  fn_fail:

    {

	mpi_errno = MPIR_Err_create_code(

	    mpi_errno, MPIR_ERR_RECOVERABLE, FCNAME, __LINE__, MPI_ERR_OTHER,

	    "**mpi_type_get_true_extent",

	    "**mpi_type_get_true_extent %D %p %p",

	    datatype, true_lb, true_extent);

    }

    mpi_errno = MPIR_Err_return_comm(NULL, FCNAME, mpi_errno);

    goto fn_exit;

#   endif

    /* --END ERROR HANDLING-- */

}