From: Bdale Garbee <bdale@gag.com>
Date: Sat, 5 Apr 2025 07:02:51 +0000 (-0600)
Subject: arrange for systemd to trigger graceful shutdown without CherryPy involved
X-Git-Url: https://git.gag.com/?a=commitdiff_plain;h=aefa7246154406bd8647b7167b2dff5c2bd7ded6;p=fw%2Fquantimotor

arrange for systemd to trigger graceful shutdown without CherryPy involved
---

diff --git a/application.py b/application.py
index 6eb057d..862e74e 100755
--- a/application.py
+++ b/application.py
@@ -30,6 +30,22 @@ def set_line_values(chip_path, line_values):
     )
     request.set_values(line_values)
 
+def handler(signum, frame):
+    set_line_values(
+        "/dev/gpiochip0", 
+        { 4: Value.INACTIVE,    # indicate 'not ready' to LPC
+         16: Value.INACTIVE,    # pyro off
+         17: Value.INACTIVE,    # alarm b off
+         20: Value.INACTIVE,    # turn continuity LED off
+         21: Value.INACTIVE,    # turn armed LED off
+         27: Value.INACTIVE     # alarm a off
+        }
+    )
+    sys.exit(0)
+
+# having systemd use SIGINT to avoid CherryPy consuming the kill signal
+signal.signal(signal.SIGINT, handler)
+
 class Root(object):
     @cherrypy.expose
 
@@ -85,6 +101,6 @@ if __name__ == '__main__':
          'server.socket_port': 8080,
       },
    }
-
+   
    cherrypy.quickstart(Root(), '/', config)
 
diff --git a/debian/quantimotor.service b/debian/quantimotor.service
index 3940c23..3950743 100644
--- a/debian/quantimotor.service
+++ b/debian/quantimotor.service
@@ -5,6 +5,7 @@ After=network.target
 [Service]
 Type=simple
 ExecStart=/usr/share/quantimotor/startup
+KillSignal=SIGINT
 
 [Install]
 WantedBy=multi-user.target