Merge pull request #98 from bradbishop/upload-state

Inventory upload fixes
diff --git a/bin/Barreleye.py b/bin/Barreleye.py
index 66691fa..c23f657 100755
--- a/bin/Barreleye.py
+++ b/bin/Barreleye.py
@@ -18,6 +18,7 @@
 	'BMC_READY',
 	'HOST_POWERING_ON',
 	'HOST_POWERED_ON',
+	'INVENTORY_UPLOADED',
 	'HOST_BOOTING',
 	'HOST_BOOTED',
 	'HOST_POWERED_OFF',
@@ -42,7 +43,7 @@
 
 ## method will be called when state is entered
 ENTER_STATE_CALLBACK = {
-	'HOST_POWERED_ON' : {
+	'INVENTORY_UPLOADED' : {
 		'boot' : {
 			'bus_name'    : 'org.openbmc.control.Host',
 			'obj_name'    : '/org/openbmc/control/host0',
@@ -95,10 +96,17 @@
 		'process_name'    : 'inventory_items.py',
 		'args'            : [ SYSTEM_NAME ]
 	},
-	'pcie_present' : {
+	'inventory_upload' : {
 		'system_state'    : 'HOST_POWERED_ON',
 		'start_process'   : True,
 		'monitor_process' : False,
+		'process_name'    : 'goto_system_state.py',
+		'args'            : [ 'INVENTORY_UPLOADED', 'inventory_upload.py' ]
+	},
+	'pcie_present' : {
+		'system_state'    : 'INVENTORY_UPLOADED',
+		'start_process'   : True,
+		'monitor_process' : False,
 		'process_name'    : 'pcie_slot_present.exe',
 	},
 	'fan_control' : {
diff --git a/bin/goto_system_state.py b/bin/goto_system_state.py
new file mode 100644
index 0000000..4efa1c6
--- /dev/null
+++ b/bin/goto_system_state.py
@@ -0,0 +1,61 @@
+#!/usr/bin/env python
+
+# Contributors Listed Below - COPYRIGHT 2016
+# [+] International Business Machines Corp.
+#
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# permissions and limitations under the License.
+
+import sys
+import subprocess
+import dbus
+import dbus.service
+import dbus.mainloop.glib
+import gobject
+
+
+class Goto(dbus.service.Object):
+    def __init__(self, connection, path, loop, state, cmdline):
+        super(Goto, self).__init__(connection, path)
+        self.loop = loop
+        self.state = state
+        self.cmdline = cmdline
+        gobject.idle_add(self.go)
+
+    def go(self):
+        if self.cmdline:
+            subprocess.call(self.cmdline)
+
+        if self.state:
+            self.GotoSystemState(self.state)
+
+        self.loop.quit()
+
+    @dbus.service.signal('org.openbmc.Control', signature='s')
+    def GotoSystemState(self, state):
+        pass
+
+if __name__ == '__main__':
+    dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)
+    bus = dbus.SystemBus()
+    cmdline = None
+    state = None
+
+    if len(sys.argv) > 1:
+        state = sys.argv[1]
+    if len(sys.argv) > 2:
+        cmdline = sys.argv[2:]
+
+    loop = gobject.MainLoop()
+    o = Goto(bus, '/org/openbmc/goto', loop, state, cmdline)
+    loop.run()
diff --git a/bin/hwmon.py b/bin/hwmon.py
index 08c6f06..1209d46 100755
--- a/bin/hwmon.py
+++ b/bin/hwmon.py
@@ -44,6 +44,7 @@
 		self.hwmon_root = { }
 		self.scanDirectory()
 		gobject.timeout_add(DIR_POLL_INTERVAL, self.scanDirectory)   
+		self.cache = {}
 
 	def readAttribute(self,filename):
 		val = ""
@@ -56,17 +57,29 @@
 		with open(filename, 'w') as f:
 			f.write(str(value)+'\n')
 
+	def should_update(attribute, value):
+		if attribute not in self.cache:
+			self.cache[attribute] = value
+			return True
+
+		update = (value != self.cache[attribute])
+		self.cache[attribute] = value
+
+		return update
 
 	def poll(self,objpath,attribute):
 		try:
 			raw_value = int(self.readAttribute(attribute))
-			obj = bus.get_object(SENSOR_BUS,objpath,introspect=False)
-			intf = dbus.Interface(obj,HwmonSensor.IFACE_NAME)
-			rtn = intf.setByPoll(raw_value)
-			if (rtn[0] == True):
-				self.writeAttribute(attribute,rtn[1])
+			if self.should_update(attribute, raw_value):
+				obj = bus.get_object(SENSOR_BUS,objpath,introspect=False)
+				intf = dbus.Interface(obj,HwmonSensor.IFACE_NAME)
+				rtn = intf.setByPoll(raw_value)
+				if (rtn[0] == True):
+					self.writeAttribute(attribute,rtn[1])
 		except:
 			print "HWMON: Attibute no longer exists: "+attribute
+			if attribute in self.cache:
+				del self.cache[attribute]
 			return False