tree 6505d79625d91ebf0fd3011970350eabb448bc2c
parent fc4b4e34653375d02bef1be44d0702d054f4de3a
author Josh Gao <jmgao@google.com> 1496256896 -0700
committer Josh Gao <jmgao@google.com> 1496258039 -0700

adb: reunregress waiting for device on start-server.

Move the invocation of adb_notify_device_scan_complete to
the end of device_connected, where we decrement connecting_devices.
Also, create a dedicated thread for handling hotplug events, instead of
reusing the main thread for this, since the main thread blocks until
device scan is complete.

Test: `adb kill-server; adb devices`
Change-Id: Ia73b1a57538174282a48ef73ab0a3e58152d6f83