/* -*- 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_Comm_create_errhandler */

#if defined(HAVE_PRAGMA_WEAK)

#pragma weak MPI_Comm_create_errhandler = PMPI_Comm_create_errhandler

#elif defined(HAVE_PRAGMA_HP_SEC_DEF)

#pragma _HP_SECONDARY_DEF PMPI_Comm_create_errhandler  MPI_Comm_create_errhandler

#elif defined(HAVE_PRAGMA_CRI_DUP)

#pragma _CRI duplicate MPI_Comm_create_errhandler as PMPI_Comm_create_errhandler

#elif defined(HAVE_WEAK_ATTRIBUTE)

int MPI_Comm_create_errhandler(MPI_Comm_errhandler_function * comm_errhandler_fn,

                               MPI_Errhandler * errhandler)

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

#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_Comm_create_errhandler

#define MPI_Comm_create_errhandler PMPI_Comm_create_errhandler

#undef FUNCNAME

#define FUNCNAME MPIR_Comm_create_errhandler_impl

#undef FCNAME

#define FCNAME MPL_QUOTE(FUNCNAME)

int MPIR_Comm_create_errhandler_impl(MPI_Comm_errhandler_function * comm_errhandler_fn,

                                     MPI_Errhandler * errhandler)

{

    int mpi_errno = MPI_SUCCESS;

    MPIR_Errhandler *errhan_ptr;

    errhan_ptr = (MPIR_Errhandler *) MPIR_Handle_obj_alloc(&MPIR_Errhandler_mem);

    MPIR_ERR_CHKANDJUMP(!errhan_ptr, mpi_errno, MPI_ERR_OTHER, "**nomem");

    errhan_ptr->language = MPIR_LANG__C;

    errhan_ptr->kind = MPIR_COMM;

    MPIR_Object_set_ref(errhan_ptr, 1);

    errhan_ptr->errfn.C_Comm_Handler_function = comm_errhandler_fn;

    MPIR_OBJ_PUBLISH_HANDLE(*errhandler, errhan_ptr->handle);

  fn_exit:

    return mpi_errno;

  fn_fail:

    goto fn_exit;

}

#endif

#undef FUNCNAME

#define FUNCNAME MPI_Comm_create_errhandler

#undef FCNAME

#define FCNAME MPL_QUOTE(FUNCNAME)

/*@

   MPI_Comm_create_errhandler - Create a communicator error handler

Input Parameters:

. comm_errhandler_fn - user defined error handling procedure (function)

Output Parameters:

. errhandler - MPI error handler (handle)

Error Handler:

   The error handler function should be of the form

   void MPI_Comm_errhandler_function(MPI_Comm *comm, int *rc);

.N ThreadSafe

.N Fortran

.N Errors

.N MPI_SUCCESS

.N MPI_ERR_COMM

.N MPI_ERR_OTHER

@*/

int MPI_Comm_create_errhandler(MPI_Comm_errhandler_function * comm_errhandler_fn,

                               MPI_Errhandler * errhandler)

{

    int mpi_errno = MPI_SUCCESS;

    MPIR_FUNC_TERSE_STATE_DECL(MPID_STATE_MPI_COMM_CREATE_ERRHANDLER);

    MPIR_ERRTEST_INITIALIZED_ORDIE();

    MPID_THREAD_CS_ENTER(GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);

    MPIR_FUNC_TERSE_ENTER(MPID_STATE_MPI_COMM_CREATE_ERRHANDLER);

    /* Validate parameters, especially handles needing to be converted */

#ifdef HAVE_ERROR_CHECKING

    {

        MPID_BEGIN_ERROR_CHECKS;

        {

            MPIR_ERRTEST_ARGNULL(comm_errhandler_fn, "comm_errhandler_fn", mpi_errno);

            MPIR_ERRTEST_ARGNULL(errhandler, "errhandler", mpi_errno);

        }

        MPID_END_ERROR_CHECKS;

    }

#endif /* HAVE_ERROR_CHECKING */

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

    mpi_errno = MPIR_Comm_create_errhandler_impl(comm_errhandler_fn, errhandler);

    if (mpi_errno)

        goto fn_fail;

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

  fn_exit:

    MPIR_FUNC_TERSE_EXIT(MPID_STATE_MPI_COMM_CREATE_ERRHANDLER);

    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_comm_create_errhandler",

                                 "**mpi_comm_create_errhandler %p %p", comm_errhandler_fn,

                                 errhandler);

    }

#endif

    mpi_errno = MPIR_Err_return_comm(NULL, FCNAME, mpi_errno);

    goto fn_exit;

    /* --END ERROR HANDLING-- */

}