Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1

Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:

Imported nx-X11-3.1.0-1.tar.gz
into Git repository

1 files changed, 213 insertions, 0 deletions

diff --git a/nx-X11/programs/Xserver/dix/atom.c b/nx-X11/programs/Xserver/dix/atom.c
new file mode 100644
index 000000000..207174280
--- /dev/null
+++ b/nx-X11/programs/Xserver/dix/atom.c
@@ -0,0 +1,213 @@
+/* $XFree86: xc/programs/Xserver/dix/atom.c,v 3.3 2001/12/14 19:59:29 dawes Exp $ */
+/***********************************************************
+
+Copyright 1987, 1998  The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+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
+OPEN GROUP 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 Open Group 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 Open Group.
+
+
+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.
+
+******************************************************************/
+
+/* $Xorg: atom.c,v 1.4 2001/02/09 02:04:39 xorgcvs Exp $ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <X11/X.h>
+#include <X11/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;
+
+void FreeAtom(NodePtr patom);
+
+Atom 
+MakeAtom(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)
+{
+    return (atom != None) && (atom <= lastAtom);
+}
+
+char *
+NameForAtom(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(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 ();
+}
+
+