/*
 * Copyright (C) by Argonne National Laboratory
 *     See COPYRIGHT in top-level directory
 */

#include "mpiimpl.h"

/* -- Begin Profiling Symbol Block for routine MPI_Register_datarep */
#if defined(HAVE_PRAGMA_WEAK)
#pragma weak MPI_Register_datarep = PMPI_Register_datarep
#elif defined(HAVE_PRAGMA_HP_SEC_DEF)
#pragma _HP_SECONDARY_DEF PMPI_Register_datarep  MPI_Register_datarep
#elif defined(HAVE_PRAGMA_CRI_DUP)
#pragma _CRI duplicate MPI_Register_datarep as PMPI_Register_datarep
#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_Register_datarep
#define MPI_Register_datarep PMPI_Register_datarep

#endif

/*@
   MPI_Register_datarep - Register a set of user-provided data conversion
   functions

Input Parameters:
+ datarep - data representation identifier (string)
. read_conversion_fn - function invoked to convert from file representation to native representation (function)
. write_conversion_fn - function invoked to convert from native representation to file representation (function)
. dtype_file_extent_fn - function invoked to get the extent of a datatype as represented in the file (function)
- extra_state - extra state that is passed to the conversion functions

.N ThreadSafe

.N Fortran

.N Errors
.N MPI_SUCCESS
.N MPI_ERR_ARG
@*/
int MPI_Register_datarep(char *datarep,
                         MPI_Datarep_conversion_function * read_conversion_fn,
                         MPI_Datarep_conversion_function * write_conversion_fn,
                         MPI_Datarep_extent_function * dtype_file_extent_fn, void *extra_state)
{
    int mpi_errno = MPI_SUCCESS;
    MPIR_FUNC_TERSE_STATE_DECL(MPID_STATE_MPI_REGISTER_DATAREP);

    MPIR_ERRTEST_INITIALIZED_ORDIE();

    MPID_THREAD_CS_ENTER(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
    MPIR_FUNC_TERSE_ENTER(MPID_STATE_MPI_REGISTER_DATAREP);

    /* Validate parameters and objects (post conversion) */
#ifdef HAVE_ERROR_CHECKING
    {
        MPID_BEGIN_ERROR_CHECKS;
        {
            if (mpi_errno)
                goto fn_fail;
        }
        MPID_END_ERROR_CHECKS;
    }
#endif /* HAVE_ERROR_CHECKING */

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

    /* FIXME UNIMPLEMENTED */
    mpi_errno =
        MPIR_Err_create_code(MPI_SUCCESS, MPIR_ERR_RECOVERABLE, __func__, __LINE__, MPI_ERR_OTHER,
                             "**notimpl", 0);

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

    if (mpi_errno != MPI_SUCCESS)
        goto fn_fail;

  fn_exit:
    MPIR_FUNC_TERSE_EXIT(MPID_STATE_MPI_REGISTER_DATAREP);
    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, __func__, __LINE__, MPI_ERR_OTHER,
                                 "**mpi_register_datarep", "**mpi_register_datarep %s %p %p %p %p",
                                 datarep, read_conversion_fn, write_conversion_fn,
                                 dtype_file_extent_fn, extra_state);
    }
#endif
    mpi_errno = MPIR_Err_return_comm(NULL, __func__, mpi_errno);
    goto fn_exit;
    /* --END ERROR HANDLING-- */
}
