xserver git update 15/5/2010

1 files changed, 218 insertions, 212 deletions

diff --git a/xorg-server/dix/atom.c b/xorg-server/dix/atom.c
index f5bf8ad7e..210641bd4 100644
--- a/xorg-server/dix/atom.c
+++ b/xorg-server/dix/atom.c
@@ -1,212 +1,218 @@
-/***********************************************************
-
-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.
-
-******************************************************************/
-
-
-#ifdef HAVE_DIX_CONFIG_H
-#include <dix-config.h>
-#endif
-
-#include <X11/X.h>
-#include <X11/Xatom.h>
-#include <stdio.h>
-#include <string.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;
-    const 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(const char *string, unsigned len, Bool makeit)
-{
-    NodePtr * np;
-    unsigned i;
-    int comp;
-    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)
-    {
-	NodePtr nd;
-
-	nd = xalloc(sizeof(NodeRec));
-	if (!nd)
-	    return BAD_RESOURCE;
-	if (lastAtom < XA_LAST_PREDEFINED)
-	{
-	    nd->string = string;
-	}
-	else
-	{
-	    char *newstring = xalloc(len + 1);
-	    if (!newstring) {
-		xfree(nd);
-		return BAD_RESOURCE;
-	    }
-	    strncpy(newstring, string, (int)len);
-	    newstring[len] = 0;
-	    nd->string = newstring;
-	}
-	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);
-}
-
-const char *
-NameForAtom(Atom atom)
-{
-    NodePtr node;
-    if (atom > lastAtom) return 0;
-    if ((node = nodeTable[atom]) == (NodePtr)NULL) return 0;
-    return node->string;
-}
-
-void
-AtomError(void)
-{
-    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(void)
-{
-    if(atomRoot == (NodePtr)NULL)
-	return;
-    FreeAtom(atomRoot);
-    atomRoot = (NodePtr)NULL;
-    xfree(nodeTable);
-    nodeTable = (NodePtr *)NULL;
-    lastAtom = None;
-}
-
-void
-InitAtoms(void)
-{
-    FreeAllAtoms();
-    tableLength = InitialTableSize;
-    nodeTable = xalloc(InitialTableSize*sizeof(NodePtr));
-    if (!nodeTable)
-	AtomError();
-    nodeTable[None] = (NodePtr)NULL;
-    MakePredeclaredAtoms();
-    if (lastAtom != XA_LAST_PREDEFINED)
-	AtomError ();
-}
+/***********************************************************

+

+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.

+

+******************************************************************/

+

+

+#ifdef HAVE_DIX_CONFIG_H

+#include <dix-config.h>

+#endif

+

+#include <X11/X.h>

+#include <X11/Xatom.h>

+#include <stdio.h>

+#include <string.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;

+    const char   *string;

+} NodeRec, *NodePtr;

+

+static Atom lastAtom = None;

+static NodePtr atomRoot = NULL;

+static unsigned long tableLength;

+static NodePtr *nodeTable;

+

+void FreeAtom(NodePtr patom);

+

+Atom

+MakeAtom(const char *string, unsigned len, Bool makeit)

+{

+    NodePtr * np;

+    unsigned i;

+    int comp;

+    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 != 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)

+    {

+	NodePtr nd;

+

+	nd = malloc(sizeof(NodeRec));

+	if (!nd)

+	    return BAD_RESOURCE;

+	if (lastAtom < XA_LAST_PREDEFINED)

+	{

+	    nd->string = string;

+	}

+	else

+	{

+	    char *newstring = malloc(len + 1);

+	    if (!newstring) {

+		free(nd);

+		return BAD_RESOURCE;

+	    }

+	    strncpy(newstring, string, (int)len);

+	    newstring[len] = 0;

+	    nd->string = newstring;

+	}

+	if ((lastAtom + 1) >= tableLength) {

+	    NodePtr *table;

+

+	    table = realloc(nodeTable, tableLength * (2 * sizeof(NodePtr)));

+	    if (!table) {

+		if (nd->string != string) {

+                    /* nd->string has been strdup'ed */

+		    free((char *)nd->string);

+                }

+		free(nd);

+		return BAD_RESOURCE;

+	    }

+	    tableLength <<= 1;

+	    nodeTable = table;

+	}

+	*np = nd;

+	nd->left = nd->right = 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);

+}

+

+const char *

+NameForAtom(Atom atom)

+{

+    NodePtr node;

+    if (atom > lastAtom) return 0;

+    if ((node = nodeTable[atom]) == NULL) return 0;

+    return node->string;

+}

+

+void

+AtomError(void)

+{

+    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) {

+        /*

+         * All strings above XA_LAST_PREDEFINED are strdup'ed, so it's safe to

+         * cast here

+         */

+	free((char *)patom->string);

+    }

+    free(patom);

+}

+

+void

+FreeAllAtoms(void)

+{

+    if (atomRoot == NULL)

+	return;

+    FreeAtom(atomRoot);

+    atomRoot = NULL;

+    free(nodeTable);

+    nodeTable = NULL;

+    lastAtom = None;

+}

+

+void

+InitAtoms(void)

+{

+    FreeAllAtoms();

+    tableLength = InitialTableSize;

+    nodeTable = malloc(InitialTableSize * sizeof(NodePtr));

+    if (!nodeTable)

+	AtomError();

+    nodeTable[None] = NULL;

+    MakePredeclaredAtoms();

+    if (lastAtom != XA_LAST_PREDEFINED)

+	AtomError();

+}