xkb: Add XkbCopySrvLedInfo, deep-copies a XkbSrvLedInfoRec.

include/xkbsrv.h

@@ -576,6 +576,14 @@ extern XkbSrvLedInfoPtr XkbAllocSrvLedInfo(
     unsigned int		/* needed_parts */
 );
 
+extern XkbSrvLedInfoPtr XkbCopySrvLedInfo(
+    DeviceIntPtr		/* dev */,
+    XkbSrvLedInfoPtr		/* src */,
+    KbdFeedbackPtr		/* kf */,
+    LedFeedbackPtr		/* lf */
+);
+
+
 extern XkbSrvLedInfoPtr XkbFindSrvLedInfo(
     DeviceIntPtr		/* dev */,
     unsigned int		/* class */,

xkb/xkbLEDs.c

@@ -615,6 +615,45 @@ XkbFreeSrvLedInfo(XkbSrvLedInfoPtr sli)
     return;
 }
 
+/*
+ * XkbSrvLedInfoPtr
+ * XkbCopySrvLedInfo(dev,src,kf,lf)
+ *
+ * Takes the given XkbSrvLedInfoPtr and duplicates it. A deep copy is made,
+ * thus the new copy behaves like the original one and can be freed with
+ * XkbFreeSrvLedInfo.
+ */
+XkbSrvLedInfoPtr
+XkbCopySrvLedInfo(	DeviceIntPtr		from,
+			XkbSrvLedInfoPtr	src,
+			KbdFeedbackPtr		kf,
+			LedFeedbackPtr		lf)
+{
+    XkbSrvLedInfoPtr sli_new;
+
+    if (!src)
+	goto finish;
+
+    sli_new = _XkbTypedCalloc(1, XkbSrvLedInfoRec);
+    if (!sli_new)
+	goto finish;
+
+    memcpy(src, sli_new, sizeof(XkbSrvLedInfoRec));
+    if (sli_new->class == KbdFeedbackClass)
+	sli_new->fb.kf = kf;
+    else
+	sli_new->fb.lf = lf;
+
+    if (sli_new->flags & XkbSLI_IsDefault) {
+	sli_new->names= _XkbTypedCalloc(XkbNumIndicators,Atom);
+	sli_new->maps= _XkbTypedCalloc(XkbNumIndicators,XkbIndicatorMapRec);
+    } /* else sli_new->names/maps is pointing to
+	dev->key->xkbInfo->desc->names->indicators;
+	dev->key->xkbInfo->desc->names->indicators; */
+
+finish:
+    return sli_new;
+}
 
 /***====================================================================***/