Provision Android devices after the 'device_status_check' step.
BUG=169338
Review URL: https://chromiumcodereview.appspot.com/12733012
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@191315 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/build/android/host_heartbeat.py b/build/android/host_heartbeat.py
new file mode 100755
index 0000000..8321a77
--- /dev/null
+++ b/build/android/host_heartbeat.py
@@ -0,0 +1,33 @@
+#!/usr/bin/env python
+#
+# Copyright (c) 2013 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""Sends a heart beat pulse to the currently online Android devices.
+This heart beat lets the devices know that they are connected to a host.
+"""
+
+import os
+import sys
+import time
+
+from pylib import android_commands
+
+PULSE_PERIOD = 20
+
+def main():
+ while True:
+ try:
+ devices = android_commands.GetAttachedDevices()
+ for device in devices:
+ android_cmd = android_commands.AndroidCommands(device)
+ android_cmd.RunShellCommand('touch /sdcard/host_heartbeat')
+ except:
+ # Keep the heatbeat running bypassing all errors.
+ pass
+ time.sleep(PULSE_PERIOD)
+
+
+if __name__ == '__main__':
+ sys.exit(main())
