Add example process with PipeIO event handlers

solvable/src/pipe_io_main.py

@@ -0,0 +1,24 @@
+from signal import signal, SIGTERM, SIGINT
+
+from tornado.ioloop import IOLoop
+
+from tfw import EventHandlerBase
+from tfw.components import PipeIOEventHandler
+
+
+if __name__ == '__main__':
+    ide_pipeio = PipeIOEventHandler(
+        'ide',
+        '/tmp/ide_send',
+        '/tmp/ide_recv'
+    )
+
+    event_handlers = EventHandlerBase.get_local_instances()
+    def cleanup(sig, frame):
+        for eh in event_handlers:
+            eh.cleanup()
+        exit(0)
+    signal(SIGTERM, cleanup)
+    signal(SIGINT, cleanup)
+
+    IOLoop.instance().start()

solvable/supervisor/pipe_io_main.conf

@@ -0,0 +1,4 @@
+[program:pipe_io_main]
+user=root
+directory=%(ENV_TFW_EHMAIN_DIR)s
+command=python3 pipe_io_main.py