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IABSD.fr/xenocara/xserver/xkb/XKBAlloc.c
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- xserver/xkb/XKBAlloc.c
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/************************************************************ 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_DIX_CONFIG_H #include <dix-config.h> #endif #include <stdio.h> #include <X11/X.h> #include <X11/Xproto.h> #include "misc.h" #include "inputstr.h" #include <xkbsrv.h> #include "xkbgeom.h" #include <os.h> #include <string.h> /***===================================================================***/ /*ARGSUSED*/ Status XkbAllocCompatMap(XkbDescPtr xkb, unsigned which, unsigned nSI) { XkbCompatMapPtr compat; XkbSymInterpretRec *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 == NULL) compat->num_si = 0; prev_interpret = compat->sym_interpret; compat->sym_interpret = reallocarray(compat->sym_interpret, nSI, sizeof(XkbSymInterpretRec)); if (compat->sym_interpret == NULL) { free(prev_interpret); compat->size_si = compat->num_si = 0; return BadAlloc; } if (compat->num_si != 0) { memset(&compat->sym_interpret[compat->num_si], 0, (compat->size_si - compat->num_si) * sizeof(XkbSymInterpretRec)); } return Success; } compat = calloc(1, sizeof(XkbCompatMapRec)); if (compat == NULL) return BadAlloc; if (nSI > 0) { compat->sym_interpret = calloc(nSI, sizeof(XkbSymInterpretRec)); if (!compat->sym_interpret) { free(compat); return BadAlloc; } } compat->size_si = nSI; compat->num_si = 0; memset((char *) &compat->groups[0], 0, XkbNumKbdGroups * sizeof(XkbModsRec)); xkb->compat = compat; return Success; } void XkbFreeCompatMap(XkbDescPtr xkb, unsigned which, Bool freeMap) { register XkbCompatMapPtr compat; if ((xkb == NULL) || (xkb->compat == NULL)) return; compat = xkb->compat; if (freeMap) which = XkbAllCompatMask; if (which & XkbGroupCompatMask) memset((char *) &compat->groups[0], 0, XkbNumKbdGroups * sizeof(XkbModsRec)); if (which & XkbSymInterpMask) { if ((compat->sym_interpret) && (compat->size_si > 0)) free(compat->sym_interpret); compat->size_si = compat->num_si = 0; compat->sym_interpret = NULL; } if (freeMap) { free(compat); xkb->compat = NULL; } return; } /***===================================================================***/ Status XkbAllocNames(XkbDescPtr xkb, unsigned which, int nTotalRG, int nTotalAliases) { XkbNamesPtr names; if (xkb == NULL) return BadMatch; if (xkb->names == NULL) { xkb->names = calloc(1, sizeof(XkbNamesRec)); if (xkb->names == NULL) return BadAlloc; } names = xkb->names; if ((which & XkbKTLevelNamesMask) && (xkb->map != NULL) && (xkb->map->types != NULL)) { register int i; XkbKeyTypePtr type; type = xkb->map->types; for (i = 0; i < xkb->map->num_types; i++, type++) { if (type->level_names == NULL) { type->level_names = calloc(type->num_levels, sizeof(Atom)); if (type->level_names == NULL) return BadAlloc; } } } if ((which & XkbKeyNamesMask) && (names->keys == NULL)) { if ((!XkbIsLegalKeycode(xkb->min_key_code)) || (!XkbIsLegalKeycode(xkb->max_key_code)) || (xkb->max_key_code < xkb->min_key_code)) return BadValue; names->keys = calloc((xkb->max_key_code + 1), sizeof(XkbKeyNameRec)); if (names->keys == NULL) return BadAlloc; } if ((which & XkbKeyAliasesMask) && (nTotalAliases > 0)) { if (names->key_aliases == NULL) { names->key_aliases = calloc(nTotalAliases, sizeof(XkbKeyAliasRec)); } else if (nTotalAliases > names->num_key_aliases) { XkbKeyAliasRec *prev_aliases = names->key_aliases; names->key_aliases = reallocarray(names->key_aliases, nTotalAliases, sizeof(XkbKeyAliasRec)); if (names->key_aliases != NULL) { memset(&names->key_aliases[names->num_key_aliases], 0, (nTotalAliases - names->num_key_aliases) * sizeof(XkbKeyAliasRec)); } else { free(prev_aliases); } } if (names->key_aliases == NULL) { names->num_key_aliases = 0; return BadAlloc; } names->num_key_aliases = nTotalAliases; } if ((which & XkbRGNamesMask) && (nTotalRG > 0)) { if (names->radio_groups == NULL) { names->radio_groups = calloc(nTotalRG, sizeof(Atom)); } else if (nTotalRG > names->num_rg) { Atom *prev_radio_groups = names->radio_groups; names->radio_groups = reallocarray(names->radio_groups, nTotalRG, sizeof(Atom)); if (names->radio_groups != NULL) { memset(&names->radio_groups[names->num_rg], 0, (nTotalRG - names->num_rg) * sizeof(Atom)); } else { free(prev_radio_groups); } } if (names->radio_groups == NULL) { names->num_rg = 0; return BadAlloc; } names->num_rg = nTotalRG; } return Success; } void XkbFreeNames(XkbDescPtr xkb, unsigned which, Bool freeMap) { XkbNamesPtr names; if ((xkb == NULL) || (xkb->names == NULL)) return; names = xkb->names; if (freeMap) which = XkbAllNamesMask; if (which & XkbKTLevelNamesMask) { XkbClientMapPtr map = xkb->map; if ((map != NULL) && (map->types != NULL)) { register int i; register XkbKeyTypePtr type; type = map->types; for (i = 0; i < map->num_types; i++, type++) { free(type->level_names); type->level_names = NULL; } } } if ((which & XkbKeyNamesMask) && (names->keys != NULL)) { free(names->keys); names->keys = NULL; names->num_keys = 0; } if ((which & XkbKeyAliasesMask) && (names->key_aliases)) { free(names->key_aliases); names->key_aliases = NULL; names->num_key_aliases = 0; } if ((which & XkbRGNamesMask) && (names->radio_groups)) { free(names->radio_groups); names->radio_groups = NULL; names->num_rg = 0; } if (freeMap) { free(names); xkb->names = NULL; } return; } /***===================================================================***/ /*ARGSUSED*/ Status XkbAllocControls(XkbDescPtr xkb, unsigned which) { if (xkb == NULL) return BadMatch; if (xkb->ctrls == NULL) { xkb->ctrls = calloc(1, sizeof(XkbControlsRec)); if (!xkb->ctrls) return BadAlloc; } return Success; } /*ARGSUSED*/ static void XkbFreeControls(XkbDescPtr xkb, unsigned which, Bool freeMap) { if (freeMap && (xkb != NULL) && (xkb->ctrls != NULL)) { free(xkb->ctrls); xkb->ctrls = NULL; } return; } /***===================================================================***/ Status XkbAllocIndicatorMaps(XkbDescPtr xkb) { if (xkb == NULL) return BadMatch; if (xkb->indicators == NULL) { xkb->indicators = calloc(1, sizeof(XkbIndicatorRec)); if (!xkb->indicators) return BadAlloc; } return Success; } static void XkbFreeIndicatorMaps(XkbDescPtr xkb) { if ((xkb != NULL) && (xkb->indicators != NULL)) { free(xkb->indicators); xkb->indicators = NULL; } return; } /***====================================================================***/ XkbDescRec * XkbAllocKeyboard(void) { XkbDescRec *xkb; xkb = calloc(1, sizeof(XkbDescRec)); if (xkb) xkb->device_spec = XkbUseCoreKbd; return xkb; } void XkbFreeKeyboard(XkbDescPtr xkb, unsigned which, Bool freeAll) { if (xkb == NULL) return; if (freeAll) which = XkbAllComponentsMask; if (which & XkbClientMapMask) XkbFreeClientMap(xkb, XkbAllClientInfoMask, TRUE); if (which & XkbServerMapMask) XkbFreeServerMap(xkb, XkbAllServerInfoMask, TRUE); if (which & XkbCompatMapMask) XkbFreeCompatMap(xkb, XkbAllCompatMask, TRUE); if (which & XkbIndicatorMapMask) XkbFreeIndicatorMaps(xkb); if (which & XkbNamesMask) XkbFreeNames(xkb, XkbAllNamesMask, TRUE); if ((which & XkbGeometryMask) && (xkb->geom != NULL)) { XkbFreeGeometry(xkb->geom, XkbGeomAllMask, TRUE); /* PERHAPS BONGHITS etc */ xkb->geom = NULL; } if (which & XkbControlsMask) XkbFreeControls(xkb, XkbAllControlsMask, TRUE); if (freeAll) free(xkb); return; } /***====================================================================***/ void XkbFreeComponentNames(XkbComponentNamesPtr names, Bool freeNames) { if (names) { free(names->keycodes); free(names->types); free(names->compat); free(names->symbols); free(names->geometry); memset(names, 0, sizeof(XkbComponentNamesRec)); } if (freeNames) free(names); }