| /* Support functions for general registry objects. |
| |
| Copyright (C) 2011-2021 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" |
| 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 = XNEW (struct registry_data_registration); |
| (*curr)->next = NULL; |
| (*curr)->data = XNEW (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 = XCNEWVEC (void *, fields->num_data); |
| } |
| |
| 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]; |
| } |