+++ /dev/null
-/***********************************************************
-
-Copyright (c) 1987 X Consortium
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
-AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-Except as contained in this notice, the name of the X Consortium shall not be
-used in advertising or otherwise to promote the sale, use or other dealings
-in this Software without prior written authorization from the X Consortium.
-
-
-Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
-
- All Rights Reserved
-
-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 Digital not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.
-
-DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-DIGITAL 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.
-
-******************************************************************/
-
-/* $XConsortium: atom.c,v 1.30 94/04/17 20:26:16 dpw Exp $ */
-/* $XFree86: xc/programs/Xserver/dix/atom.c,v 3.0 1996/04/15 11:19:31 dawes Exp $ */
-
-#include "X.h"
-#include "Xatom.h"
-#include "misc.h"
-#include "resource.h"
-#include "dix.h"
-
-#define InitialTableSize 100
-
-typedef struct _Node {
- struct _Node *left, *right;
- Atom a;
- unsigned int fingerPrint;
- char *string;
-} NodeRec, *NodePtr;
-
-static Atom lastAtom = None;
-static NodePtr atomRoot = (NodePtr)NULL;
-static unsigned long tableLength;
-static NodePtr *nodeTable;
-
-Atom
-MakeAtom(string, len, makeit)
- char *string;
- unsigned len;
- Bool makeit;
-{
- register NodePtr * np;
- unsigned i;
- int comp;
- register unsigned int fp = 0;
-
- np = &atomRoot;
- for (i = 0; i < (len+1)/2; i++)
- {
- fp = fp * 27 + string[i];
- fp = fp * 27 + string[len - 1 - i];
- }
- while (*np != (NodePtr) NULL)
- {
- if (fp < (*np)->fingerPrint)
- np = &((*np)->left);
- else if (fp > (*np)->fingerPrint)
- np = &((*np)->right);
- else
- { /* now start testing the strings */
- comp = strncmp(string, (*np)->string, (int)len);
- if ((comp < 0) || ((comp == 0) && (len < strlen((*np)->string))))
- np = &((*np)->left);
- else if (comp > 0)
- np = &((*np)->right);
- else
- return(*np)->a;
- }
- }
- if (makeit)
- {
- register NodePtr nd;
-
- nd = (NodePtr) xalloc(sizeof(NodeRec));
- if (!nd)
- return BAD_RESOURCE;
- if (lastAtom < XA_LAST_PREDEFINED)
- {
- nd->string = string;
- }
- else
- {
- nd->string = (char *) xalloc(len + 1);
- if (!nd->string) {
- xfree(nd);
- return BAD_RESOURCE;
- }
- strncpy(nd->string, string, (int)len);
- nd->string[len] = 0;
- }
- if ((lastAtom + 1) >= tableLength) {
- NodePtr *table;
-
- table = (NodePtr *) xrealloc(nodeTable,
- tableLength * (2 * sizeof(NodePtr)));
- if (!table) {
- if (nd->string != string)
- xfree(nd->string);
- xfree(nd);
- return BAD_RESOURCE;
- }
- tableLength <<= 1;
- nodeTable = table;
- }
- *np = nd;
- nd->left = nd->right = (NodePtr) NULL;
- nd->fingerPrint = fp;
- nd->a = (++lastAtom);
- *(nodeTable+lastAtom) = nd;
- return nd->a;
- }
- else
- return None;
-}
-
-Bool
-ValidAtom(atom)
- Atom atom;
-{
- return (atom != None) && (atom <= lastAtom);
-}
-
-char *
-NameForAtom(atom)
- Atom atom;
-{
- NodePtr node;
- if (atom > lastAtom) return 0;
- if ((node = nodeTable[atom]) == (NodePtr)NULL) return 0;
- return node->string;
-}
-
-void
-AtomError()
-{
- FatalError("initializing atoms");
-}
-
-void
-FreeAtom(patom)
- NodePtr patom;
-{
- if(patom->left)
- FreeAtom(patom->left);
- if(patom->right)
- FreeAtom(patom->right);
- if (patom->a > XA_LAST_PREDEFINED)
- xfree(patom->string);
- xfree(patom);
-}
-
-void
-FreeAllAtoms()
-{
- if(atomRoot == (NodePtr)NULL)
- return;
- FreeAtom(atomRoot);
- atomRoot = (NodePtr)NULL;
- xfree(nodeTable);
- nodeTable = (NodePtr *)NULL;
- lastAtom = None;
-}
-
-void
-InitAtoms()
-{
- FreeAllAtoms();
- tableLength = InitialTableSize;
- nodeTable = (NodePtr *)xalloc(InitialTableSize*sizeof(NodePtr));
- if (!nodeTable)
- AtomError();
- nodeTable[None] = (NodePtr)NULL;
- MakePredeclaredAtoms();
- if (lastAtom != XA_LAST_PREDEFINED)
- AtomError ();
-}
-
-
projects / rdpsrv / blobdiff