Support fuer Mapper-Setmethoden
Setmethoden koennen zusammen mit einem neuen Modus SETMAPPED
eingetragen werden. In diesem Fall speichert die Setmethode
den Wert nicht selber, sondern gibt ihn nur zurueck und die
Propertyverwaltung speichert den neuen Wert.
Das ermoeglicht (wiederverwendbare, generische) Funktionen
als Mapper.
Change-Id: Ief259dc4ccad9bc0e9138ab964edeb6a2b408949
diff --git a/sys/thing/properties.h b/sys/thing/properties.h
index c472af5..be7a6cd 100644
--- a/sys/thing/properties.h
+++ b/sys/thing/properties.h
@@ -13,6 +13,12 @@
#define F_SET_METHOD 2
#define F_QUERY_METHOD 3
+// The following are used as type flags for Set(), but they do not index
+// <prop>, therfore they have a negative sign.
+//
+// F_SET_MAPPER sets F_SET_METHOD, but additionally sets the mode SETMAPPED
+// automatically
+#define F_SET_MAPPER -F_SET_METHOD
// Flags for Set() to modify/manipulate F_MODE of a property in bit-wise
// manner
#define F_MODE_AS 4
@@ -23,6 +29,7 @@
#define PROTECTED 128 // only this_object() can change the values
#define SECURED 256 // like PROTECTED, but never resetable
#define NOSETMETHOD 512 // Keine Set-Methode => Nicht mofifizierbar
+#define SETMAPPED 0x4000 // Setmethod only maps, not sets
// Problem with the following: shadows, default methods etc. may change the
// result at runtime and they do not save that much time (or even at all?)
// because of the apply cache of the driver. Not used since 1995. But