aa0fbdd82c
* Makefile.in (COMMON_OBS): Add registry.o. * registry.c: New file. * registry.h (struct registry_container): Declare. (registry_data_callback): New typedef. (struct registry_data, struct registry_data_registration, struct registry_data_registry): New type. (register_data_with_cleanup, registry_alloc_data) (registry_callback_adaptor, registry_clear_data) (registry_container_free_data, registry_set_data, registry_data): Declare. (DEFINE_REGISTRY): Refactor structures and functions as shims over the new common structures and functions. (DECLARE_REGISTRY): Declare struct TAG ## _data. Use the tagged callback typedefs.
116 lines
3.4 KiB
C
116 lines
3.4 KiB
C
/* Support functions for general registry objects.
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Copyright (C) 2011, 2012
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Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "registry.h"
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#include "gdb_assert.h"
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#include "gdb_string.h"
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const struct registry_data *
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register_data_with_cleanup (struct registry_data_registry *registry,
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registry_data_callback save,
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registry_data_callback free)
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{
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struct registry_data_registration **curr;
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/* Append new registration. */
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for (curr = ®istry->registrations;
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*curr != NULL;
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curr = &(*curr)->next)
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;
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*curr = XMALLOC (struct registry_data_registration);
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(*curr)->next = NULL;
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(*curr)->data = XMALLOC (struct registry_data);
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(*curr)->data->index = registry->num_registrations++;
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(*curr)->data->save = save;
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(*curr)->data->free = free;
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return (*curr)->data;
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}
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void
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registry_alloc_data (struct registry_data_registry *registry,
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struct registry_fields *fields)
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{
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gdb_assert (fields->data == NULL);
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fields->num_data = registry->num_registrations;
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fields->data = XCALLOC (fields->num_data, void *);
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}
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void
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registry_clear_data (struct registry_data_registry *data_registry,
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registry_callback_adaptor adaptor,
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struct registry_container *container,
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struct registry_fields *fields)
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{
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struct registry_data_registration *registration;
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int i;
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gdb_assert (fields->data != NULL);
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/* Process all the save handlers. */
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for (registration = data_registry->registrations, i = 0;
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i < fields->num_data;
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registration = registration->next, i++)
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if (fields->data[i] != NULL && registration->data->save != NULL)
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adaptor (registration->data->save, container, fields->data[i]);
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/* Now process all the free handlers. */
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for (registration = data_registry->registrations, i = 0;
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i < fields->num_data;
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registration = registration->next, i++)
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if (fields->data[i] != NULL && registration->data->free != NULL)
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adaptor (registration->data->free, container, fields->data[i]);
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memset (fields->data, 0, fields->num_data * sizeof (void *));
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}
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void
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registry_container_free_data (struct registry_data_registry *data_registry,
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registry_callback_adaptor adaptor,
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struct registry_container *container,
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struct registry_fields *fields)
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{
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void ***rdata = &fields->data;
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gdb_assert (*rdata != NULL);
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registry_clear_data (data_registry, adaptor, container, fields);
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xfree (*rdata);
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*rdata = NULL;
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}
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void
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registry_set_data (struct registry_fields *fields,
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const struct registry_data *data,
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void *value)
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{
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gdb_assert (data->index < fields->num_data);
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fields->data[data->index] = value;
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}
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void *
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registry_data (struct registry_fields *fields,
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const struct registry_data *data)
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{
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gdb_assert (data->index < fields->num_data);
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return fields->data[data->index];
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}
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