Add hardware monitoring to skpbench

tools/skpbench/_hardware.py

Index: tools/skpbench/_hardware.py
diff --git a/tools/skpbench/_hardware.py b/tools/skpbench/_hardware.py
new file mode 100644
index 0000000000000000000000000000000000000000..23cfc827bc97ccf44f98dee0549e7a04c564a8c6
--- /dev/null
+++ b/tools/skpbench/_hardware.py
@@ -0,0 +1,29 @@
+# Copyright 2016 Google Inc.
+#
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+import time
+
+class HardwareException(Exception):
+  def __init__(self, message, sleeptime=60):
+    Exception.__init__(self, message)
+    self.sleeptime = sleeptime
+
+class Hardware:
+  def __init__(self):
+    self.kick_in_time = 0
+
+  def __enter__(self):
+    return self
+
+  def __exit__(self, exception_type, exception_value, traceback):
+    pass
+
+  def sanity_check(self):
+    '''Raises a HardwareException if any hardware state is not as expected.'''
+    pass
+
+  def sleep(self, sleeptime):
+    '''Puts the hardware into a resting state for a fixed amount of time.'''
+    time.sleep(sleeptime)