commit 4bd0b7c2a228fb19dac58e238b8599aa88d98428
author Siarhei Vishniakou <svv@google.com> Fri Oct 27 00:51:14 2023 -0700
committer Siarhei Vishniakou <svv@google.com> Fri Oct 27 17:41:33 2023 +0000
tree 5e0257235780a4abd3a794b9e766b0fd00b4bed4
parent a1277efde03027ad1ce78a8318dc613a0108a679

Dump dispatcher state before crashing

To check on the device state, dump the dispatcher state before crashing.
This will help with debugging when the condition is triggered.

Bug: 307690884
Test: TEST=inputflinger_tests; m $TEST && $ANDROID_HOST_OUT/nativetest64/$TEST/$TEST
Change-Id: I0eca70e2193318e8954e180c6cb5db3b48670d2e

services/inputflinger/dispatcher/InputDispatcher.cpp

diff --git a/services/inputflinger/dispatcher/InputDispatcher.cpp b/services/inputflinger/dispatcher/InputDispatcher.cpp
index 7dfbf94..53e0855 100644
--- a/services/inputflinger/dispatcher/InputDispatcher.cpp
+++ b/services/inputflinger/dispatcher/InputDispatcher.cpp
@@ -2910,7 +2910,10 @@
         it = inputTargets.end() - 1;
     }
 
-    LOG_ALWAYS_FATAL_IF(it->flags != targetFlags);
+    if (it->flags != targetFlags) {
+        logDispatchStateLocked();
+        LOG(FATAL) << "Flags don't match! targetFlags=" << targetFlags.string() << ", it=" << *it;
+    }
     LOG_ALWAYS_FATAL_IF(it->globalScaleFactor != windowInfo->globalScaleFactor);
 
     it->addPointers(pointerIds, windowInfo->transform);