diff options
| author | 2021-04-28 15:13:06 +0000 | |
|---|---|---|
| committer | 2021-05-03 08:44:58 +0000 | |
| commit | 2274a3146953176b72f2cf2cc578945d8a95f2ff (patch) | |
| tree | 94bc623d3a3555f06163ce453926a12278b6e615 /libs/gui/SurfaceComposerClient.cpp | |
| parent | 0021fac86976361657fbc74bc908d548c18511ea (diff) | |
Fix potential synchronized race between SF and InputFlinger
The 'CountDownLatch' is used to control the synchronization behavior if
a transaction is synchronous or contains the syncInputWindow command,
while updating input windows asynchronously, if there is another
synchronized transaction queued and commited before input windows
updated, it may cause the transaction return early and cause other input
function such as 'transferTouchFocus' failed.
This CL distinguish the transaction and input windows updating
synchronization that could help to signal the CountDownLatch in correct
situation.
Test: atest SurfaceFlinger_tests
Test: atest CrossDragAndDropTests --rerun-until-failure 50
Bug: 183877670
Bug: 183877512
Bug: 183880412
Change-Id: I68e124006e86d8b9c4b8c528418b9db2065b21de
Diffstat (limited to 'libs/gui/SurfaceComposerClient.cpp')
0 files changed, 0 insertions, 0 deletions