1ba97181dc
* Added Create_errhandler for MPI::File
* Make errors_throw_exceptions a first-class predefined exception
handler, and make it work for Comm, File, and Win
* Deal with error handlers and attributes for Files, Types, and Wins
like we do with Comms - can't just cast the callbacks from C++
signatures to C signatures. Callbacks will then fire with the
C object, not the C++ object. That's bad.
Refs trac:455
This commit was SVN r12945.
The following Trac tickets were found above:
Ticket 455 --> https://svn.open-mpi.org/trac/ompi/ticket/455
282 строки
9.4 KiB
C
282 строки
9.4 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "ompi_config.h"
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#include "ompi/communicator/communicator.h"
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#include "ompi/win/win.h"
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#include "ompi/file/file.h"
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#include "ompi/errhandler/errhandler.h"
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#include "ompi/errhandler/errhandler_predefined.h"
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#include "ompi/class/ompi_pointer_array.h"
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/*
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* Table for Fortran <-> C errhandler handle conversion
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*/
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ompi_pointer_array_t *ompi_errhandler_f_to_c_table;
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/*
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* Class information
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*/
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static void ompi_errhandler_construct(ompi_errhandler_t *eh);
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static void ompi_errhandler_destruct(ompi_errhandler_t *eh);
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/*
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* Class instance
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*/
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OBJ_CLASS_INSTANCE(ompi_errhandler_t, opal_object_t, ompi_errhandler_construct,
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ompi_errhandler_destruct);
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ompi_errhandler_t ompi_mpi_errhandler_null;
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ompi_errhandler_t ompi_mpi_errors_are_fatal;
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ompi_errhandler_t ompi_mpi_errors_return;
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ompi_errhandler_t ompi_mpi_errors_throw_exceptions;
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/*
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* Local state to know when the three intrinsics have been freed; see
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* the errhandler destructor for more info.
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*/
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static bool null_freed = false;
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static bool fatal_freed = false;
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static bool return_freed = false;
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static bool throw_freed = false;
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/*
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* Initialize OMPI errhandler infrastructure
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*/
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int ompi_errhandler_init(void)
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{
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/* initialize ompi_errhandler_f_to_c_table */
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ompi_errhandler_f_to_c_table = OBJ_NEW(ompi_pointer_array_t);
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if (NULL == ompi_errhandler_f_to_c_table){
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return OMPI_ERROR;
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}
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/* Initialize the predefined error handlers */
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OBJ_CONSTRUCT( &ompi_mpi_errhandler_null, ompi_errhandler_t );
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if( ompi_mpi_errhandler_null.eh_f_to_c_index != OMPI_ERRHANDLER_NULL_FORTRAN )
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return OMPI_ERROR;
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ompi_mpi_errhandler_null.eh_mpi_object_type = OMPI_ERRHANDLER_TYPE_PREDEFINED;
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ompi_mpi_errhandler_null.eh_fortran_function = false;
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ompi_mpi_errhandler_null.eh_comm_fn = NULL;
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ompi_mpi_errhandler_null.eh_file_fn = NULL;
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ompi_mpi_errhandler_null.eh_win_fn = NULL ;
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ompi_mpi_errhandler_null.eh_fort_fn = NULL;
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strncpy (ompi_mpi_errhandler_null.eh_name, "MPI_ERRHANDLER_NULL",
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strlen("MPI_ERRHANDLER_NULL")+1 );
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OBJ_CONSTRUCT( &ompi_mpi_errors_are_fatal, ompi_errhandler_t );
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if( ompi_mpi_errors_are_fatal.eh_f_to_c_index != OMPI_ERRORS_ARE_FATAL_FORTRAN )
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return OMPI_ERROR;
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ompi_mpi_errors_are_fatal.eh_mpi_object_type = OMPI_ERRHANDLER_TYPE_PREDEFINED;
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ompi_mpi_errors_are_fatal.eh_fortran_function = false;
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ompi_mpi_errors_are_fatal.eh_comm_fn = ompi_mpi_errors_are_fatal_comm_handler;
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ompi_mpi_errors_are_fatal.eh_file_fn = ompi_mpi_errors_are_fatal_file_handler;
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ompi_mpi_errors_are_fatal.eh_win_fn = ompi_mpi_errors_are_fatal_win_handler ;
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ompi_mpi_errors_are_fatal.eh_fort_fn = NULL;
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strncpy (ompi_mpi_errors_are_fatal.eh_name, "MPI_ERRORS_ARE_FATAL",
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strlen("MPI_ERRORS_ARE_FATAL")+1 );
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OBJ_CONSTRUCT( &ompi_mpi_errors_return, ompi_errhandler_t );
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if( ompi_mpi_errors_return.eh_f_to_c_index != OMPI_ERRORS_RETURN_FORTRAN )
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return OMPI_ERROR;
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ompi_mpi_errors_return.eh_mpi_object_type = OMPI_ERRHANDLER_TYPE_PREDEFINED;
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ompi_mpi_errors_return.eh_fortran_function = false;
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ompi_mpi_errors_return.eh_comm_fn = ompi_mpi_errors_return_comm_handler;
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ompi_mpi_errors_return.eh_file_fn = ompi_mpi_errors_return_file_handler;
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ompi_mpi_errors_return.eh_win_fn = ompi_mpi_errors_return_win_handler;
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ompi_mpi_errors_return.eh_fort_fn = NULL;
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strncpy (ompi_mpi_errors_return.eh_name, "MPI_ERRORS_RETURN",
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strlen("MPI_ERRORS_RETURN")+1 );
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/* If we're going to use C++, functions will be fixed up during MPI::Init */
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OBJ_CONSTRUCT( &ompi_mpi_errors_throw_exceptions, ompi_errhandler_t );
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ompi_mpi_errors_are_fatal.eh_mpi_object_type = OMPI_ERRHANDLER_TYPE_PREDEFINED;
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ompi_mpi_errors_are_fatal.eh_fortran_function = false;
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ompi_mpi_errors_are_fatal.eh_comm_fn = ompi_mpi_errors_are_fatal_comm_handler;
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ompi_mpi_errors_are_fatal.eh_file_fn = ompi_mpi_errors_are_fatal_file_handler;
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ompi_mpi_errors_are_fatal.eh_win_fn = ompi_mpi_errors_are_fatal_win_handler ;
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ompi_mpi_errors_are_fatal.eh_fort_fn = NULL;
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strncpy (ompi_mpi_errors_are_fatal.eh_name, "MPI_ERRORS_THROW_EXCEPTIONS",
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strlen("MPI_ERRORS_THROW_EXCEPTIONS")+1 );
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/* All done */
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return OMPI_SUCCESS;
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}
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/*
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* Clean up the errorhandler resources
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*/
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int ompi_errhandler_finalize(void)
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{
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/* Forcibly release the intrinsic error handlers because in order
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to be safe, we increase the refcount on error handlers in
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MPI_*_GET_ERRHANDLER and MPI_ERRHANDLER_GET. If these handles
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are never ERRHANDLER_FREEd, then the refcount will not be
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decremented and they will not naturally get to 0 during
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FINALIZE. Hence, we RELEASE on the intrinsics until they are
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freed. */
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while (!null_freed) {
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OBJ_DESTRUCT(&ompi_mpi_errhandler_null);
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}
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while (!fatal_freed) {
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OBJ_DESTRUCT(&ompi_mpi_errors_are_fatal);
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}
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while (!return_freed) {
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OBJ_DESTRUCT(&ompi_mpi_errors_return);
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}
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while (!throw_freed) {
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OBJ_DESTRUCT(&ompi_mpi_errors_throw_exceptions);
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}
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/* JMS Add stuff here checking for unreleased errorhandlers,
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similar to communicators, info handles, etc. */
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/* Remove errhandler F2C table */
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/* Forcibly release the intrinsic error handlers because in order to
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be safe, we increase the refcount on error handlers in
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MPI_*_GET_ERRHANDLER and MPI_ERRHANDLER_GET. If these handles
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are never ERRHANDLER_FREEd, then the refcount will not be
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decremented and they will not naturally get to 0 during FINALIZE.
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Hence, we RELEASE on the intrinsics until they are freed. */
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OBJ_RELEASE(ompi_errhandler_f_to_c_table);
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/* All done */
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return OMPI_SUCCESS;
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}
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ompi_errhandler_t *ompi_errhandler_create(ompi_errhandler_type_t object_type,
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ompi_errhandler_generic_handler_fn_t *func)
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{
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ompi_errhandler_t *new_errhandler;
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/* Create a new object and ensure that it's valid */
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new_errhandler = OBJ_NEW(ompi_errhandler_t);
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if (NULL != new_errhandler) {
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if (OMPI_ERROR == new_errhandler->eh_f_to_c_index) {
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OBJ_RELEASE(new_errhandler);
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new_errhandler = NULL;
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} else {
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/* The new object is valid -- initialize it. If this is being
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created from fortran, the fortran MPI API wrapper function
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will override the eh_fortran_field directly. We cast the
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function pointer type to the fortran type arbitrarily -- it
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only has to be a function pointer in order to store properly,
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it doesn't matter what type it is (we'll cast it to the Right
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type when we *use* it). */
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new_errhandler->eh_mpi_object_type = object_type;
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new_errhandler->eh_fortran_function = false;
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switch (object_type ) {
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case (OMPI_ERRHANDLER_TYPE_COMM):
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new_errhandler->eh_comm_fn = (MPI_Comm_errhandler_fn *)func;
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break;
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case (OMPI_ERRHANDLER_TYPE_FILE):
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new_errhandler->eh_file_fn = (MPI_File_errhandler_fn *)func;
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break;
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case (OMPI_ERRHANDLER_TYPE_WIN):
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new_errhandler->eh_win_fn = (MPI_Win_errhandler_fn *)func;
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break;
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default:
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break;
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}
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new_errhandler->eh_fort_fn = (ompi_errhandler_fortran_handler_fn_t *)func;
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}
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}
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/* All done */
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return new_errhandler;
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}
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/**************************************************************************
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*
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* Static functions
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*
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**************************************************************************/
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/**
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* Errhandler constructor
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*/
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static void ompi_errhandler_construct(ompi_errhandler_t *new_errhandler)
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{
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int ret_val;
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/* assign entry in fortran <-> c translation array */
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ret_val = ompi_pointer_array_add(ompi_errhandler_f_to_c_table,
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new_errhandler);
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new_errhandler->eh_f_to_c_index = ret_val;
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new_errhandler->eh_fortran_function = false;
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new_errhandler->eh_comm_fn = NULL;
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new_errhandler->eh_win_fn = NULL;
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new_errhandler->eh_file_fn = NULL;
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new_errhandler->eh_fort_fn = NULL;
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memset (new_errhandler->eh_name, 0, MPI_MAX_OBJECT_NAME);
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}
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/**
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* Errhandler destructor
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*/
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static void ompi_errhandler_destruct(ompi_errhandler_t *errhandler)
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{
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/* reset the ompi_errhandler_f_to_c_table entry - make sure that the
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entry is in the table */
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if (NULL!= ompi_pointer_array_get_item(ompi_errhandler_f_to_c_table,
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errhandler->eh_f_to_c_index)) {
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ompi_pointer_array_set_item(ompi_errhandler_f_to_c_table,
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errhandler->eh_f_to_c_index, NULL);
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}
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/* Reset the static state if we're releasing one of the
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intrinsics */
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if (&ompi_mpi_errhandler_null == errhandler) {
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null_freed = true;
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} else if (&ompi_mpi_errors_are_fatal == errhandler) {
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fatal_freed = true;
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} else if (&ompi_mpi_errors_return == errhandler) {
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return_freed = true;
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} else if (&ompi_mpi_errors_throw_exceptions == errhandler) {
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throw_freed = true;
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}
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}
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