1 files changed, 36 insertions, 0 deletions
diff --git a/third_party/libwebrtc/build/android/host_heartbeat.py b/third_party/libwebrtc/build/android/host_heartbeat.py
new file mode 100755
index 0000000000..34a1a3597c
--- /dev/null
+++ b/third_party/libwebrtc/build/android/host_heartbeat.py
@@ -0,0 +1,36 @@
+#!/usr/bin/env vpython3
+#
+# 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.
+"""
+# pylint: disable=W0702
+
+import sys
+import time
+
+import devil_chromium
+from devil.android import device_utils
+
+PULSE_PERIOD = 20
+
+def main():
+  devil_chromium.Initialize()
+
+  while True:
+    try:
+      devices = device_utils.DeviceUtils.HealthyDevices(denylist=None)
+      for d in devices:
+        d.RunShellCommand(['touch', '/sdcard/host_heartbeat'],
+                          check_return=True)
+    except:
+      # Keep the heatbeat running bypassing all errors.
+      pass
+    time.sleep(PULSE_PERIOD)
+
+
+if __name__ == '__main__':
+  sys.exit(main())