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/* Support functions for general registry objects.
Copyright (C) 2011-2013 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "registry.h"
#include "gdb_assert.h"
#include <string.h>
const struct registry_data *
register_data_with_cleanup (struct registry_data_registry *registry,
registry_data_callback save,
registry_data_callback free)
{
struct registry_data_registration **curr;
/* Append new registration. */
for (curr = ®istry->registrations;
*curr != NULL;
curr = &(*curr)->next)
;
*curr = XMALLOC (struct registry_data_registration);
(*curr)->next = NULL;
(*curr)->data = XMALLOC (struct registry_data);
(*curr)->data->index = registry->num_registrations++;
(*curr)->data->save = save;
(*curr)->data->free = free;
return (*curr)->data;
}
void
registry_alloc_data (struct registry_data_registry *registry,
struct registry_fields *fields)
{
gdb_assert (fields->data == NULL);
fields->num_data = registry->num_registrations;
fields->data = XCALLOC (fields->num_data, void *);
}
void
registry_clear_data (struct registry_data_registry *data_registry,
registry_callback_adaptor adaptor,
struct registry_container *container,
struct registry_fields *fields)
{
struct registry_data_registration *registration;
int i;
gdb_assert (fields->data != NULL);
/* Process all the save handlers. */
for (registration = data_registry->registrations, i = 0;
i < fields->num_data;
registration = registration->next, i++)
if (fields->data[i] != NULL && registration->data->save != NULL)
adaptor (registration->data->save, container, fields->data[i]);
/* Now process all the free handlers. */
for (registration = data_registry->registrations, i = 0;
i < fields->num_data;
registration = registration->next, i++)
if (fields->data[i] != NULL && registration->data->free != NULL)
adaptor (registration->data->free, container, fields->data[i]);
memset (fields->data, 0, fields->num_data * sizeof (void *));
}
void
registry_container_free_data (struct registry_data_registry *data_registry,
registry_callback_adaptor adaptor,
struct registry_container *container,
struct registry_fields *fields)
{
void ***rdata = &fields->data;
gdb_assert (*rdata != NULL);
registry_clear_data (data_registry, adaptor, container, fields);
xfree (*rdata);
*rdata = NULL;
}
void
registry_set_data (struct registry_fields *fields,
const struct registry_data *data,
void *value)
{
gdb_assert (data->index < fields->num_data);
fields->data[data->index] = value;
}
void *
registry_data (struct registry_fields *fields,
const struct registry_data *data)
{
gdb_assert (data->index < fields->num_data);
return fields->data[data->index];
}
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