/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */

/*

 *  (C) 2011 by Argonne National Laboratory.

 *      See COPYRIGHT in top-level directory.

 */

#include "mpiimpl.h"

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

#if defined(HAVE_PRAGMA_WEAK)

#pragma weak MPI_T_category_get_cvars = PMPI_T_category_get_cvars

#elif defined(HAVE_PRAGMA_HP_SEC_DEF)

#pragma _HP_SECONDARY_DEF PMPI_T_category_get_cvars  MPI_T_category_get_cvars

#elif defined(HAVE_PRAGMA_CRI_DUP)

#pragma _CRI duplicate MPI_T_category_get_cvars as PMPI_T_category_get_cvars

#elif defined(HAVE_WEAK_ATTRIBUTE)

int MPI_T_category_get_cvars(int cat_index, int len, int indices[])

    __attribute__ ((weak, alias("PMPI_T_category_get_cvars")));

#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_T_category_get_cvars

#define MPI_T_category_get_cvars PMPI_T_category_get_cvars

/* any non-MPI functions go here, especially non-static ones */

#undef FUNCNAME

#define FUNCNAME MPIR_T_category_get_cvars_impl

#undef FCNAME

#define FCNAME MPL_QUOTE(FUNCNAME)

int MPIR_T_category_get_cvars_impl(int cat_index, int len, int indices[])

{

    int mpi_errno = MPI_SUCCESS;

    cat_table_entry_t *cat;

    int i, num_cvars, count;

    cat = (cat_table_entry_t *) utarray_eltptr(cat_table, cat_index);

    num_cvars = utarray_len(cat->cvar_indices);

    count = len < num_cvars ? len : num_cvars;

    for (i = 0; i < count; i++) {

        indices[i] = *(int *) utarray_eltptr(cat->cvar_indices, i);

    }

    return mpi_errno;

}

#endif /* MPICH_MPI_FROM_PMPI */

#undef FUNCNAME

#define FUNCNAME MPI_T_category_get_cvars

#undef FCNAME

#define FCNAME MPL_QUOTE(FUNCNAME)

/*@

MPI_T_category_get_cvars - Get control variables in a category

Input Parameters:

+ cat_index - index of the category to be queried, in the range [0,N-1] (integer)

- len - the length of the indices array (integer)

Output Parameters:

. indices - an integer array of size len, indicating control variable indices (array of integers)

.N ThreadSafe

.N Errors

.N MPI_SUCCESS

.N MPI_T_ERR_NOT_INITIALIZED

.N MPI_T_ERR_INVALID_INDEX

@*/

int MPI_T_category_get_cvars(int cat_index, int len, int indices[])

{

    int mpi_errno = MPI_SUCCESS;

    MPIR_FUNC_TERSE_STATE_DECL(MPID_STATE_MPI_T_CATEGORY_GET_CVARS);

    MPIR_ERRTEST_MPIT_INITIALIZED(mpi_errno);

    MPIR_T_THREAD_CS_ENTER();

    MPIR_FUNC_TERSE_ENTER(MPID_STATE_MPI_T_CATEGORY_GET_CVARS);

    /* Validate parameters */

#ifdef HAVE_ERROR_CHECKING

    {

        MPID_BEGIN_ERROR_CHECKS;

        {

            MPIR_ERRTEST_CAT_INDEX(cat_index, mpi_errno);

            if (len != 0)

                MPIR_ERRTEST_ARGNULL(indices, "indices", mpi_errno);

        }

        MPID_END_ERROR_CHECKS;

    }

#endif /* HAVE_ERROR_CHECKING */

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

    if (len == 0)

        goto fn_exit;

    mpi_errno = MPIR_T_category_get_cvars_impl(cat_index, len, indices);

    if (mpi_errno)

        MPIR_ERR_POP(mpi_errno);

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

  fn_exit:

    MPIR_FUNC_TERSE_EXIT(MPID_STATE_MPI_T_CATEGORY_GET_CVARS);

    MPIR_T_THREAD_CS_EXIT();

    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_t_category_get_cvars",

                                 "**mpi_t_category_get_cvars %d %d %p", cat_index, len, indices);

    }

#endif

    mpi_errno = MPIR_Err_return_comm(NULL, FCNAME, mpi_errno);

    goto fn_exit;

    /* --END ERROR HANDLING-- */

}