/* -*- 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_contents */

#if defined(HAVE_PRAGMA_WEAK)

#pragma weak MPI_Type_get_contents = PMPI_Type_get_contents

#elif defined(HAVE_PRAGMA_HP_SEC_DEF)

#pragma _HP_SECONDARY_DEF PMPI_Type_get_contents  MPI_Type_get_contents

#elif defined(HAVE_PRAGMA_CRI_DUP)

#pragma _CRI duplicate MPI_Type_get_contents as PMPI_Type_get_contents

#elif defined(HAVE_WEAK_ATTRIBUTE)

int MPI_Type_get_contents(MPI_Datatype datatype, int max_integers, int max_addresses,

                          int max_datatypes, int array_of_integers[],

                          MPI_Aint array_of_addresses[], MPI_Datatype array_of_datatypes[]) __attribute__((weak,alias("PMPI_Type_get_contents")));

#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_contents

#define MPI_Type_get_contents PMPI_Type_get_contents

#endif

#undef FUNCNAME

#define FUNCNAME MPI_Type_get_contents

/*@

   MPI_Type_get_contents - get type contents

Input Parameters:

+  datatype - datatype to access (handle)

.  max_integers - number of elements in array_of_integers (non-negative integer)

.  max_addresses - number of elements in array_of_addresses (non-negative integer)

-  max_datatypes - number of elements in array_of_datatypes (non-negative integer)

Output Parameters:

+  array_of_integers - contains integer arguments used in constructing the datatype (array of integers)

.  array_of_addresses - contains address arguments used in constructing the datatype (array of integers)

-  array_of_datatypes - contains datatype arguments used in constructing the datatype (array of handles)

   Notes:

.N Fortran

.N Errors

.N MPI_SUCCESS

@*/

int MPI_Type_get_contents(MPI_Datatype datatype,

			  int max_integers,

			  int max_addresses,

			  int max_datatypes,

			  int array_of_integers[],

			  MPI_Aint array_of_addresses[],

			  MPI_Datatype array_of_datatypes[])

{

    static const char FCNAME[] = "MPI_Type_get_contents";

    int mpi_errno = MPI_SUCCESS;

    MPID_MPI_STATE_DECL(MPID_STATE_MPI_TYPE_GET_CONTENTS);

    MPIR_ERRTEST_INITIALIZED_ORDIE();

    MPID_THREAD_CS_ENTER(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);

    MPID_MPI_FUNC_ENTER(MPID_STATE_MPI_TYPE_GET_CONTENTS);

    /* 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;

	    /* Check for built-in type */

	    if (HANDLE_GET_KIND(datatype) == HANDLE_KIND_BUILTIN) {

		mpi_errno = MPIR_Err_create_code(MPI_SUCCESS,

						 MPIR_ERR_RECOVERABLE,

						 FCNAME, __LINE__,

						 MPI_ERR_TYPE,

						 "**contentspredef", 0);

		goto fn_fail;

	    }

	    /* all but MPI_2INT of the pair types are not stored as builtins

	     * but should be treated similarly.

	     */

	    if (datatype == MPI_FLOAT_INT ||

		datatype == MPI_DOUBLE_INT ||

		datatype == MPI_LONG_INT ||

		datatype == MPI_SHORT_INT ||

		datatype == MPI_LONG_DOUBLE_INT)

	    {

		mpi_errno = MPIR_Err_create_code(MPI_SUCCESS,

						 MPIR_ERR_RECOVERABLE,

						 FCNAME, __LINE__,

						 MPI_ERR_TYPE,

						 "**contentspredef", 0);

		goto fn_fail;

	    }

            /* 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 comm_ptr is not value, it will be reset to null */

            if (mpi_errno) goto fn_fail;

        }

        MPID_END_ERROR_CHECKS;

    }

#   endif /* HAVE_ERROR_CHECKING */

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

    mpi_errno = MPID_Type_get_contents(datatype,

				       max_integers,

				       max_addresses,

				       max_datatypes,

				       array_of_integers,

				       array_of_addresses,

				       array_of_datatypes);

    if (mpi_errno != MPI_SUCCESS) goto fn_fail;

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

  fn_exit:

    MPID_MPI_FUNC_EXIT(MPID_STATE_MPI_TYPE_GET_CONTENTS);

    MPID_THREAD_CS_EXIT(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);

    return mpi_errno;

  fn_fail:

    /* --BEGIN ERROR HANDLING-- */

#   ifdef HAVE_ERROR_CHECKING

    {

	mpi_errno = MPIR_Err_create_code(

	    mpi_errno, MPIR_ERR_RECOVERABLE, FCNAME, __LINE__, MPI_ERR_OTHER, "**mpi_type_get_contents",

	    "**mpi_type_get_contents %D %d %d %d %p %p %p", datatype, max_integers, max_addresses, max_datatypes,

	    array_of_integers, array_of_addresses, array_of_datatypes);

    }

#   endif

    mpi_errno = MPIR_Err_return_comm( NULL, FCNAME, mpi_errno );

    goto fn_exit;

    /* --END ERROR HANDLING-- */

}