script/cpy/TestBlueskyPause.py

@@ -0,0 +1,48 @@
+from functools import partial
+import threading
+import traceback
+import socket
+
+CTRL_CMD_PORT = 9587
+msg=None
+if ("ctrl_cmd_socket" in globals()) and (ctrl_cmd_socket is not None):
+    ctrl_cmd_socket.close()
+    ctrl_cmd_task_thread.join(5.0)
+    if ctrl_cmd_task_thread.is_alive():
+        raise Exception("Cannot stop ctrl_cmd_task_thread")
+        
+def on_ctrl_cmd(cmd):   
+    global RE
+    print ("Control command: ", cmd)
+    if cmd=="abort":
+        if "RE" in globals():
+            if RE.state not in ['idle','paused', 'pausing']:
+                print ("Run Engine pause request")
+                RE.request_pause()
+
+def ctlm_cmd_task(port,parent_thread, rc):
+    try:
+        global ctrl_cmd_socket
+        print ("Starting control command task")
+        quit=False
+        with socket.socket(family=socket.AF_INET, type=socket.SOCK_DGRAM) as ctrl_cmd_socket:
+            ctrl_cmd_socket.bind(("127.0.0.1", port))
+            ctrl_cmd_socket.settimeout(2.0) 
+            while(quit==False) and (run_count==rc) and parent_thread.is_alive() and not ctrl_cmd_socket._closed:
+                try:      
+                    msg,add = ctrl_cmd_socket.recvfrom(100) 
+                except socket.timeout:
+                    continue                    
+                cmd =msg.decode('UTF-8')
+                on_ctrl_cmd(cmd)
+                if cmd=="exit":
+                    quit=True            
+                ctrl_cmd_socket.sendto("ack".encode('UTF-8'), add)
+    finally:
+        print("Quitting control command task")
+        
+ctrl_cmd_task_thread = threading.Thread(target=partial(ctlm_cmd_task, CTRL_CMD_PORT, threading.currentThread(), run_count))
+ctrl_cmd_task_thread.setDaemon(True)
+ctrl_cmd_task_thread.start()
+
+#RE(rel_scan(dets, motor, -1, 1, 10))