gdb/registry.c - gdb

Functions defined

Source code

  1. /* Support functions for general registry objects.

  3.    Copyright (C) 2011-2015 Free Software Foundation, Inc.

  5.    This file is part of GDB.

  7.    This program is free software; you can redistribute it and/or modify
  8.    it under the terms of the GNU General Public License as published by
  9.    the Free Software Foundation; either version 3 of the License, or
  10.    (at your option) any later version.

  12.    This program is distributed in the hope that it will be useful,
  13.    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14.    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15.    GNU General Public License for more details.

  17.    You should have received a copy of the GNU General Public License
  18.    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

  20. #include "defs.h"
  21. #include "registry.h"
  22. const struct registry_data *
  23. ‌register_data_with_cleanup (struct registry_data_registry *registry,
  24.                             registry_data_callback save,
  25.                             registry_data_callback free)
  26. {
  27.   struct registry_data_registration **curr;

  29.   /* Append new registration.  */
  30.   for (curr = &registry->registrations;
  31.        *curr != NULL;
  32.        curr = &(*curr)->next)
  33.     ;

  35.   *curr = XNEW (struct registry_data_registration);
  36.   (*curr)->next = NULL;
  37.   (*curr)->data = XNEW (struct registry_data);
  38.   (*curr)->data->index = registry->num_registrations++;
  39.   (*curr)->data->save = save;
  40.   (*curr)->data->free = free;

  42.   return (*curr)->data;
  43. }

  45. void
  46. ‌registry_alloc_data (struct registry_data_registry *registry,
  47.                        struct registry_fields *fields)
  48. {
  49.   gdb_assert (fields->data == NULL);
  50.   fields->num_data = registry->num_registrations;
  51.   fields->data = XCNEWVEC (void *, fields->num_data);
  52. }

  54. void
  55. ‌registry_clear_data (struct registry_data_registry *data_registry,
  56.                      registry_callback_adaptor adaptor,
  57.                      struct registry_container *container,
  58.                      struct registry_fields *fields)
  59. {
  60.   struct registry_data_registration *registration;
  61.   int i;

  63.   gdb_assert (fields->data != NULL);

  65.   /* Process all the save handlers.  */

  67.   for (registration = data_registry->registrations, i = 0;
  68.        i < fields->num_data;
  69.        registration = registration->next, i++)
  70.     if (fields->data[i] != NULL && registration->data->save != NULL)
  71.       adaptor (registration->data->save, container, fields->data[i]);

  73.   /* Now process all the free handlers.  */

  75.   for (registration = data_registry->registrations, i = 0;
  76.        i < fields->num_data;
  77.        registration = registration->next, i++)
  78.     if (fields->data[i] != NULL && registration->data->free != NULL)
  79.       adaptor (registration->data->free, container, fields->data[i]);

  81.   memset (fields->data, 0, fields->num_data * sizeof (void *));
  82. }

  84. void
  85. ‌registry_container_free_data (struct registry_data_registry *data_registry,
  86.                               registry_callback_adaptor adaptor,
  87.                               struct registry_container *container,
  88.                               struct registry_fields *fields)
  89. {
  90.   void ***rdata = &fields->data;
  91.   gdb_assert (*rdata != NULL);
  92.   registry_clear_data (data_registry, adaptor, container, fields);
  93.   xfree (*rdata);
  94.   *rdata = NULL;
  95. }

  97. void
  98. ‌registry_set_data (struct registry_fields *fields,
  99.                    const struct registry_data *data,
  100.                    void *value)
  101. {
  102.   gdb_assert (data->index < fields->num_data);
  103.   fields->data[data->index] = value;
  104. }

  106. void *
  107. ‌registry_data (struct registry_fields *fields,
  108.                const struct registry_data *data)
  109. {
  110.   gdb_assert (data->index < fields->num_data);
  111.   return fields->data[data->index];
  112. }