From: Ivailo Monev <xakepa10@gmail.com>
Date: Mon, 21 Mar 2022 10:47:53 +0000 (+0200)
Subject: optimize QByteArray streaming
X-Git-Tag: 4.12.0~744
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=43dad8b2455bc4cfb7b19906818a9cb258e68cd9;p=kde%2FKatie.git

optimize QByteArray streaming

Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
---

diff --git a/src/core/tools/qbytearray.cpp b/src/core/tools/qbytearray.cpp
index 1c6ccd266..06e7bdd68 100644
--- a/src/core/tools/qbytearray.cpp
+++ b/src/core/tools/qbytearray.cpp
@@ -2533,11 +2533,12 @@ QDataStream &operator<<(QDataStream &out, const QByteArray &ba)
 
 QDataStream &operator>>(QDataStream &in, QByteArray &ba)
 {
-    ba.clear();
     quint32 len;
     in >> len;
-    if (len == 0xffffffff)
+    if (len == 0xffffffff) {
+        ba.clear();
         return in;
+    }
 
     ba.resize(len);
     const quint32 readlen = in.readRawData(ba.data(), len);