多线程响应sigint信息退出

Author: lanzhiwang

thread_signal.py

@@ -0,0 +1,34 @@
+import threading
+from time import sleep
+import signal
+
+class producer(threading.Thread):
+    def __init__(self, event):
+        threading.Thread.__init__(self)
+        self.event = event
+
+    def run(self):
+        while self.event.is_set():
+            print "sub thread"
+            sleep(2)
+        else:
+            print("sub thread end")
+            exit()
+
+def handler_thread(event):
+    print("main thread end")
+    event.clear()
+
+def handler(signum, frame):
+    handler_thread(frame.f_globals['event'])
+
+signal.signal(signal.SIGINT, handler)
+
+print "main thread"
+event = threading.Event()
+event.set()
+p = producer(event)
+p.start()
+p.join()
+
+sleep(100) # 一定要使主线程处于活动状态，否则信号处理对子线程不起作用