script/ShellCommand.py

@@ -0,0 +1,73 @@
+#CAS.setServerPort(5064)
+import java.util.function.BiFunction as BiFunction
+
+class ShellCommand(RegisterBase, RegisterArray):
+    def __init__(self, name):
+        RegisterBase.__init__(self, name)
+        self.val = ""
+        self.debug=False
+        self.max_size = 10000
+
+    def getSize(self):
+        return 1
+        
+    def doRead(self):
+        if self.debug:
+            print "READ: ", self.val
+        return self.val
+        
+    def doWrite(self, val):
+        self.val = "RUNNING"
+
+
+
+
+        
+        try:
+            if self.debug:            
+                print "WRITE: ", val
+            cmd = str(val[0])
+
+            class eval_callback(BiFunction):
+                def apply(self_callback, ret, ex):
+                    try:
+                        if ex is not None:
+                            err=ex.message
+                            if "Exception:" in err:
+                                err = err[err.index("Exception:")+10:].strip()
+                            self.val = "ERR:" + err  
+                        else:
+                            self.val = "RET:" + str(ret)  
+                        self.val = self.val[0:self.max_size]
+                    except:
+                        err=str(sys.exc_info()[1])
+                        self.val = "EXC: " + err
+                    if self.debug:
+                        print self.val
+                                            
+            #self.val = cmd           
+            get_context().evalLineBackgroundAsync(cmd).handle(eval_callback())
+        except:
+            err=str(sys.exc_info()[1])
+            if "Exception:" in err:
+                err = err[err.index("Exception:")+10:].strip()
+            self.val = "EXC: " + err
+            self.val = self.val[0:self.max_size]
+            if self.debug:
+                print self.val
+        
+
+        
+add_device(ShellCommand("sc"), True)
+cas = CAS("TESTCAS:sc", sc, 'string')
+
+
+
+#print caget("TESTCAS:sc","s")
+#/Users/gobbo_a/anaconda3/envs/epics/epics/bin/darwin-x86
+
+
+
+
+
+