kc3-lang/libxkbcommon/src/alloc.c

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• Hash : 731e5c40
  Author :
  Date : 2012-03-09T18:53:47
  

  Stringify public name types Ensure that all names under xkb_desc are strings, rather than atoms. Signed-off-by: Daniel Stone <daniel@fooishbar.org>

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• src/alloc.c

• /*
  Copyright (c) 1993 by Silicon Graphics Computer Systems, Inc.
  
  Permission to use, copy, modify, and distribute this
  software and its documentation for any purpose and without
  fee is hereby granted, provided that the above copyright
  notice appear in all copies and that both that copyright
  notice and this permission notice appear in supporting
  documentation, and that the name of Silicon Graphics not be
  used in advertising or publicity pertaining to distribution
  of the software without specific prior written permission.
  Silicon Graphics makes no representation about the suitability
  of this software for any purpose. It is provided "as is"
  without any express or implied warranty.
  
  SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
  SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
  AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
  GRAPHICS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
  DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
  DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
  OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION  WITH
  THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
  
  #ifdef HAVE_CONFIG_H
  #include <config.h>
  #endif
  #include "xkballoc.h"
  #include "xkbcommon/xkbcommon.h"
  #include "XKBcommonint.h"
  #include <X11/extensions/XKB.h>
  
  int
  XkbcAllocCompatMap(struct xkb_desc * xkb, unsigned which, unsigned nSI)
  {
      struct xkb_compat_map * compat;
      struct xkb_sym_interpret *prev_interpret;
  
      if (!xkb)
          return BadMatch;
  
      if (xkb->compat) {
          if (xkb->compat->size_si >= nSI)
              return Success;
  
          compat = xkb->compat;
          compat->size_si = nSI;
          if (!compat->sym_interpret)
              compat->num_si = 0;
  
          prev_interpret = compat->sym_interpret;
          compat->sym_interpret = _XkbTypedRealloc(compat->sym_interpret,
                                                   nSI, struct xkb_sym_interpret);
          if (!compat->sym_interpret) {
              free(prev_interpret);
              compat->size_si = compat->num_si = 0;
              return BadAlloc;
          }
  
          if (compat->num_si != 0)
              _XkbClearElems(compat->sym_interpret, compat->num_si,
                             compat->size_si - 1, struct xkb_sym_interpret);
  
          return Success;
      }
  
      compat = _XkbTypedCalloc(1, struct xkb_compat_map);
      if (!compat)
          return BadAlloc;
  
      if (nSI > 0) {
          compat->sym_interpret = _XkbTypedCalloc(nSI, struct xkb_sym_interpret);
          if (!compat->sym_interpret) {
              free(compat);
              return BadAlloc;
          }
      }
      compat->size_si = nSI;
      compat->num_si = 0;
      memset(&compat->groups[0], 0, XkbNumKbdGroups * sizeof(struct xkb_mods));
      xkb->compat = compat;
  
      return Success;
  }
  
  
  static void
  XkbcFreeCompatMap(struct xkb_desc * xkb)
  {
      struct xkb_compat_map * compat;
  
      if (!xkb || !xkb->compat)
          return;
  
      compat = xkb->compat;
  
      free(compat->sym_interpret);
      free(compat);
      xkb->compat = NULL;
  }
  
  int
  XkbcAllocNames(struct xkb_desc * xkb, unsigned which, int nTotalAliases)
  {
      struct xkb_names * names;
  
      if (!xkb)
          return BadMatch;
  
      if (!xkb->names) {
          xkb->names = _XkbTypedCalloc(1, struct xkb_names);
          if (!xkb->names)
              return BadAlloc;
      }
      names = xkb->names;
  
      if ((which & XkbKTLevelNamesMask) && xkb->map && xkb->map->types) {
          int i;
          struct xkb_key_type * type;
  
          type = xkb->map->types;
          for (i = 0; i < xkb->map->num_types; i++, type++) {
              if (!type->level_names) {
                  type->level_names = _XkbTypedCalloc(type->num_levels, const char *);
                  if (!type->level_names)
                      return BadAlloc;
              }
          }
      }
  
      if ((which & XkbKeyNamesMask) && !names->keys) {
          if (!xkb_keymap_keycode_range_is_legal(xkb))
              return BadMatch;
  
          names->keys = _XkbTypedCalloc(xkb->max_key_code + 1, struct xkb_key_name);
          if (!names->keys)
              return BadAlloc;
      }
  
      if ((which & XkbKeyAliasesMask) && (nTotalAliases > 0)) {
          if (!names->key_aliases)
              names->key_aliases = _XkbTypedCalloc(nTotalAliases,
                                                   struct xkb_key_alias);
          else if (nTotalAliases > names->num_key_aliases) {
              struct xkb_key_alias *prev_aliases = names->key_aliases;
  
              names->key_aliases = _XkbTypedRealloc(names->key_aliases,
                                                    nTotalAliases,
                                                    struct xkb_key_alias);
              if (names->key_aliases)
                  _XkbClearElems(names->key_aliases, names->num_key_aliases,
                                 nTotalAliases - 1, struct xkb_key_alias);
              else
                  free(prev_aliases);
          }
  
          if (!names->key_aliases) {
              names->num_key_aliases = 0;
              return BadAlloc;
          }
  
          names->num_key_aliases = nTotalAliases;
      }
  
      return Success;
  }
  
  static void
  XkbcFreeNames(struct xkb_desc * xkb)
  {
      struct xkb_names * names;
      struct xkb_client_map * map;
      int i;
  
      if (!xkb || !xkb->names)
          return;
  
      names = xkb->names;
      map = xkb->map;
  
      if (map && map->types) {
          struct xkb_key_type * type = map->types;
  
          for (i = 0; i < map->num_types; i++, type++) {
              int j;
              for (j = 0; j < type->num_levels; j++)
                  free((char *) type->level_names[i]);
              free(type->level_names);
              type->level_names = NULL;
          }
      }
  
      for (i = 0; i < XkbNumVirtualMods; i++)
          free((char *) names->vmods[i]);
      for (i = 0; i < XkbNumIndicators; i++)
          free((char *) names->indicators[i]);
      for (i = 0; i < XkbNumKbdGroups; i++)
          free((char *) names->groups[i]);
  
      free(names->keys);
      free(names->key_aliases);
      free(names);
      xkb->names = NULL;
  }
  
  int
  XkbcAllocControls(struct xkb_desc * xkb, unsigned which)
  {
      if (!xkb)
          return BadMatch;
  
      if (!xkb->ctrls) {
          xkb->ctrls = _XkbTypedCalloc(1, struct xkb_controls);
          if (!xkb->ctrls)
              return BadAlloc;
      }
  
      if (!xkb->ctrls->per_key_repeat) {
          xkb->ctrls->per_key_repeat = _XkbTypedCalloc(xkb->max_key_code << 3,
                                                       unsigned char);
          if (!xkb->ctrls->per_key_repeat)
              return BadAlloc;
      }
  
      return Success;
  }
  
  static void
  XkbcFreeControls(struct xkb_desc * xkb)
  {
      if (xkb && xkb->ctrls) {
          free(xkb->ctrls->per_key_repeat);
          free(xkb->ctrls);
          xkb->ctrls = NULL;
      }
  }
  
  int
  XkbcAllocIndicatorMaps(struct xkb_desc * xkb)
  {
      if (!xkb)
          return BadMatch;
  
      if (!xkb->indicators) {
          xkb->indicators = _XkbTypedCalloc(1, struct xkb_indicator);
          if (!xkb->indicators)
              return BadAlloc;
      }
  
      return Success;
  }
  
  static void
  XkbcFreeIndicatorMaps(struct xkb_desc * xkb)
  {
      if (xkb) {
          free(xkb->indicators);
          xkb->indicators = NULL;
      }
  }
  
  struct xkb_desc *
  XkbcAllocKeyboard(void)
  {
      struct xkb_desc *xkb;
  
      xkb = _XkbTypedCalloc(1, struct xkb_desc);
      if (xkb)
          xkb->device_spec = XkbUseCoreKbd;
      return xkb;
  }
  
  void
  XkbcFreeKeyboard(struct xkb_desc * xkb)
  {
      if (!xkb)
          return;
  
      XkbcFreeClientMap(xkb);
      XkbcFreeServerMap(xkb);
      XkbcFreeCompatMap(xkb);
      XkbcFreeIndicatorMaps(xkb);
      XkbcFreeNames(xkb);
      XkbcFreeControls(xkb);
      free(xkb);
  }
  

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