9b7603b58c81d0069dba9126e3a8d9827cae66c6 - platform_frameworks_base

commit	9b7603b58c81d0069dba9126e3a8d9827cae66c6	[log] [tgz]
author	Riddle Hsu <riddlehsu@google.com>	Wed Jan 27 16:07:49 2021 +0800
committer	Riddle Hsu <riddlehsu@google.com>	Fri Jan 29 12:41:03 2021 +0800
tree	f07e8f4a7fc0f1545385d13412100e297f089c0e
parent	8241f19a0303d48dc723599d931af33fc2cef369 [diff]

Remove WM lock from the path of service operations

The method WPC#areBackgroundFgsStartsAllowed may be called
frequently from ActiveServices when checking if foreground
service is allowed to start. Because it usually has no window
related operation, there should not have lock contention
from window manager.

This only changes to use fine grained lock and volatile fields.
The logic is the same as original.

Bug: 177268056
Test: BackgroundActivityLaunchTest ActivityRecordTests

Change-Id: Ia3ef5b436ff09ea0968776fa7c8ea86112e356d2

services/core/java/com/android/server/wm/ActivityTaskManagerService.java[diff]
services/core/java/com/android/server/wm/BackgroundActivityStartCallback.java[diff]
services/core/java/com/android/server/wm/BackgroundLaunchProcessController.java[Added - diff]
services/core/java/com/android/server/wm/WindowProcessController.java[diff]

4 files changed