commit c3130a5bd9105c4c119e855010ec39605dcb3dcf
author Anton Ivanov <aii@google.com> Wed Mar 05 23:00:53 2025 -0800
committer Anton Ivanov <aii@google.com> Fri Mar 14 14:05:19 2025 -0700
tree 79c83dabafd411d5d272e7627351997945ed9091
parent 11a92a99db63fafe9efe05607e8d93fb9bc31950

Avoid copying Transaction objects unneccessarily.

Flag: EXEMPT refactor
Bug: 385156191
Test: presubmit
Change-Id: Ibd9d64bd7d41adbf5af0dacd660b6aaed6bc8741

libs/gui/BLASTBufferQueue.cpp

diff --git a/libs/gui/BLASTBufferQueue.cpp b/libs/gui/BLASTBufferQueue.cpp
index 1aae13c..5b0f21d 100644
--- a/libs/gui/BLASTBufferQueue.cpp
+++ b/libs/gui/BLASTBufferQueue.cpp
@@ -1032,7 +1032,7 @@
         // Apply the transaction since we have already acquired the desired frame.
         t->setApplyToken(mApplyToken).apply();
     } else {
-        mPendingTransactions.emplace_back(frameNumber, *t);
+        mPendingTransactions.emplace_back(frameNumber, std::move(*t));
         // Clear the transaction so it can't be applied elsewhere.
         t->clear();
     }
@@ -1050,8 +1050,8 @@
 void BLASTBufferQueue::mergePendingTransactions(SurfaceComposerClient::Transaction* t,
                                                 uint64_t frameNumber) {
     auto mergeTransaction =
-            [&t, currentFrameNumber = frameNumber](
-                    std::tuple<uint64_t, SurfaceComposerClient::Transaction> pendingTransaction) {
+            [t, currentFrameNumber = frameNumber](
+                    std::pair<uint64_t, SurfaceComposerClient::Transaction>& pendingTransaction) {
                 auto& [targetFrameNumber, transaction] = pendingTransaction;
                 if (currentFrameNumber < targetFrameNumber) {
                     return false;