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openmpi/ompi/errhandler/errhandler.c
Brian Barrett b1d2424013 Merge in present work on the MPI-2 onesided chapter. The current code is not
complete, but stable enough that it will have no impact on general development,
so into the trunk it goes.  Changes in this commit include:

 - Remove the --with option for disabling MPI-2 onesided support.  It
   complicated code, and has no real reason for existing
 - add a framework osc (OneSided Communication) for encapsulating
   all the MPI-2 onesided functionality
 - Modify the MPI interface functions for the MPI-2 onesided chapter
   to properly call the underlying framework and do the required
   error checking
 - Created an osc component pt2pt, which is layered over the BML/BTL
   for communication (although it also uses the PML for long message
   transfers).  Currently, all support functions, all communication
   functions (Put, Get, Accumulate), and the Fence synchronization
   function are implemented.  The PWSC active synchronization
   functions and Lock/Unlock passive synchronization functions are
   still not implemented

This commit was SVN r8836.
2006-01-28 15:38:37 +00:00

265 строки
8.5 KiB
C

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