tree 4359d4c0bcc8bff18ab5275982ade02abbb9190e
parent 48cf760bea211b43aa79675c6b73f846202865f9
author Josh Gao <jmgao@google.com> 1525475089 -0700
committer Josh Gao <jmgao@google.com> 1525482318 -0700

adb: add authorizing, connecting states to transport.

Add two states: connecting and authorizing, to disambiguate the offline
and unauthorized states, respectively.

Previously, devices would transition as follows:

  offline -> unauthorized -> offline -> online
  offline -> unauthorized (when actually unauthorized)

With this patch:

  connecting -> authorizing -> online
  connecting -> authorizing -> unauthorized (when actually unauthorized)

This allows test automation and the like to distinguish between offline
devices, unauthorized devices, and working devices without having to
do retry loops with arbitrary sleeps on their end.

Bug: http://b/79257434
Test: adb_test
Test: adbd_test
Test: manually plugging in a device with `while true; do adb shell echo foo; done`
Change-Id: I036d9b593b51a27a59ac3fc57da966fd52658567