Optimize IXWebSocketTransport chunk buffering (#562)

AaronAtP123 · web-flow · commit 91ca3e81e19a · 2026-06-24T16:36:56.000-07:00
Use move instead of copy when appending a fragment to _chunks (std::list&lt;std::string&gt;), avoiding one string copy per fragmented-message frame. C++11-compatible (std::move + list::emplace_back) and build-verified with CMAKE_CXX_STANDARD 11.
diff --git a/ixwebsocket/IXWebSocketTransport.cpp b/ixwebsocket/IXWebSocketTransport.cpp
@@ -618,7 +618,7 @@ namespace ix
                     // the internal buffer which is slow and can let the internal OS
                     // receive buffer fill out.
                     //
-                    _chunks.emplace_back(frameData);
+                    _chunks.emplace_back(std::move(frameData));
 
                     if (ws.fin)
                     {

Original file line number	Diff line number	Diff line change
`@@ -618,7 +618,7 @@ namespace ix`
`618`	`618`	`// the internal buffer which is slow and can let the internal OS`
`619`	`619`	`// receive buffer fill out.`
`620`	`620`	`//`
`621`		`- _chunks.emplace_back(frameData);`
	`621`	`+ _chunks.emplace_back(std::move(frameData));`
`622`	`622`
`623`	`623`	`if (ws.fin)`
`624`	`624`	`{`