commit c6ae4bbc44183811ad84abf5abc56a96843545bc
author Edgar Arriaga <edgararriaga@google.com> Thu Apr 16 18:46:48 2020 -0700
committer Edgar Arriaga <edgararriaga@google.com> Mon Apr 27 13:49:25 2020 -0700
tree 548f4c662072d2c2ff3bf84f6fbdd94efe8412f3
parent fbedbecbe53428412e832dd1703bc3acc65e49e9

Optimization: Restrict signing to ACTION_UP and ACTION_DOWN while doing a motion gesture such as scrolling apps

Savings. ~2.5% of total system_server time while scrolling on apps drawer screen.

Baseline:
https://pprof.corp.google.com/?id=732307aa60aa82bf478b0c3f0e6de6be&ignore=sendMessage
https://screenshot.googleplex.com/JpWt25tXRJO

Optimized:
https://pprof.corp.google.com/?id=5040d255411f407662a7f2da0109ca48&ignore=sendMessage
https://screenshot.googleplex.com/x81k7vUUKdd

Test: atest inputflinger_tests

Change-Id: I52dd33f8203fe62bfcbde7be5a1ac45c46064585

libs/input/InputTransport.cpp

diff --git a/libs/input/InputTransport.cpp b/libs/input/InputTransport.cpp
index ef7cc7d..11af23e 100644
--- a/libs/input/InputTransport.cpp
+++ b/libs/input/InputTransport.cpp
@@ -468,7 +468,7 @@
     msg.body.key.deviceId = deviceId;
     msg.body.key.source = source;
     msg.body.key.displayId = displayId;
-    msg.body.key.hmac = hmac;
+    msg.body.key.hmac = std::move(hmac);
     msg.body.key.action = action;
     msg.body.key.flags = flags;
     msg.body.key.keyCode = keyCode;
@@ -526,7 +526,7 @@
     msg.body.motion.deviceId = deviceId;
     msg.body.motion.source = source;
     msg.body.motion.displayId = displayId;
-    msg.body.motion.hmac = hmac;
+    msg.body.motion.hmac = std::move(hmac);
     msg.body.motion.action = action;
     msg.body.motion.actionButton = actionButton;
     msg.body.motion.flags = flags;