| [email protected] | 12f36c8 | 2013-03-29 06:21:13 | [diff] [blame^] | 1 | #!/usr/bin/env python |
| 2 | # |
| 3 | # Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| 4 | # Use of this source code is governed by a BSD-style license that can be |
| 5 | # found in the LICENSE file. |
| 6 | |
| 7 | """Sends a heart beat pulse to the currently online Android devices. |
| 8 | This heart beat lets the devices know that they are connected to a host. |
| 9 | """ |
| 10 | |
| 11 | import os |
| 12 | import sys |
| 13 | import time |
| 14 | |
| 15 | from pylib import android_commands |
| 16 | |
| 17 | PULSE_PERIOD = 20 |
| 18 | |
| 19 | def main(): |
| 20 | while True: |
| 21 | try: |
| 22 | devices = android_commands.GetAttachedDevices() |
| 23 | for device in devices: |
| 24 | android_cmd = android_commands.AndroidCommands(device) |
| 25 | android_cmd.RunShellCommand('touch /sdcard/host_heartbeat') |
| 26 | except: |
| 27 | # Keep the heatbeat running bypassing all errors. |
| 28 | pass |
| 29 | time.sleep(PULSE_PERIOD) |
| 30 | |
| 31 | |
| 32 | if __name__ == '__main__': |
| 33 | sys.exit(main()) |
