Creation

script/test/test6.py

@@ -0,0 +1,36 @@
+""" 
+Creating pseudo-devices
+"""
+import time
+
+sin_val=None        
+        
+class Sensor(ch.psi.pshell.dev.Readable):
+    def read(self):
+        global sin_val
+        return sin_val + time.clock()
+    def getName(self):
+        return "Sensor"
+
+class Positioner(ch.psi.pshell.dev.Writable):
+    def write(self,pos):
+        print pos
+    def getName(self):
+        return "Positioner"
+
+class Listener (ch.psi.pshell.dev.DeviceListener):
+    def onStateChanged(self, device, state, former):
+        pass
+    def onValueChanged(self, device, value, former):
+        global sin_val
+        sin_val=value
+
+sensor=Sensor()
+positioner=Positioner()
+listener = Listener()
+
+sin.addListener(listener)
+try:
+    a= lscan((inp,positioner),(sin,sensor),(0,0),(40,10),20,0.1)
+finally:
+    sin.removeListener(listener)