From: David Adam (zanchey) <zanchey@ucc.gu.uwa.edu.au>
Date: Mon, 7 Sep 2009 13:29:29 +0000 (+0800)
Subject: initial import of D-BUS server
X-Git-Url: https://git.ucc.asn.au/?p=uccdoor.git;a=commitdiff_plain;h=446ae2bd2f559e56ffc35ada410f55dabb7d996c;ds=sidebyside

initial import of D-BUS server
---

446ae2bd2f559e56ffc35ada410f55dabb7d996c
diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..4e2fff4
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,18 @@
+Copyright (c) 2009 David Adam <zanchey@ucc.gu.uwa.edu.au>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/server.py b/server.py
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+++ b/server.py
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+#! /usr/bin/env python
+# UCC Door Server - hardware interface server
+# reads status of reed switches and provides a D-BUS interface to read them
+# David Adam <zanchey@ucc.gu.uwa.edu.au>
+# Released under an MIT-style license; see COPYING for details.
+
+# statuses: 1 means open circuit, 0 means closed circuit, -1 means error
+
+import dbus, dbus.service
+import gobject
+
+class Door(dbus.service.Object):
+    
+    def __init__(self, doorname, bus):
+        self.interval = 10 # seconds
+        self.service = doorname
+        self.status = -1
+        
+        # set up D-BUS service name
+        object_path = '/au/asn/ucc/doors/%s' % doorname
+        dbus.service.Object.__init__(self, bus, object_path)
+        
+        # get initial state
+        self.poll()
+    
+    def poll(self):
+        # check LAT
+        # XXX to be added
+        
+        newstatus = -1
+        if newstatus != self.status:
+            self.status = newstatus
+            # emit signal
+            # XXX to be added
+        
+        # set up timeout again
+        gobject.timeout_add_seconds(self.interval, self.poll)
+    
+    @dbus.service.method('au.asn.ucc.DoorInterface', in_signature='',
+                         out_signature='n')
+    def get_status(self):
+        return self.status
+
+if __name__ == '__main__':
+    doors = ('uccdoor', 'unisfadoor', 'chdoor', 'mrdoor', 'uccpir')
+    
+    from dbus.mainloop.glib import DBusGMainLoop
+    DBusGMainLoop(set_as_default=True)
+    # get on the bus
+    system_bus = dbus.SystemBus()
+    system_bus.request_name('au.asn.ucc.DoorServer')
+    
+    door_objects = []
+
+    for door in doors:
+        door_objects.append(Door(door, system_bus))
+
+    # engage!
+    loop = gobject.MainLoop()
+    try:
+        loop.run()
+    except KeyboardInterrupt:
+        loop.quit()
+    except:
+        pass