From a202bf3621c42a3c2864b7c8ed45205c08d464ca Mon Sep 17 00:00:00 2001
From: Ivailo Monev <xakepa10@gmail.com>
Date: Tue, 27 Dec 2022 02:43:11 +0200
Subject: [PATCH] implement default QStatInfo constructor and use it as
 optimization in QFileSystemWatcherPrivate::_q_timeout()

Signed-off-by: Ivailo Monev <xakepa10@gmail.com>
---
 src/core/io/qfilesystemwatcher.cpp |  7 +++++--
 src/core/kernel/qcore_unix.cpp     | 14 ++++++++++++--
 src/core/kernel/qcore_unix_p.h     |  1 +
 3 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/src/core/io/qfilesystemwatcher.cpp b/src/core/io/qfilesystemwatcher.cpp
index 6e9a75a48..bf5e47166 100644
--- a/src/core/io/qfilesystemwatcher.cpp
+++ b/src/core/io/qfilesystemwatcher.cpp
@@ -94,9 +94,12 @@ void QFileSystemWatcherPrivate::_q_timeout()
     while (dit.hasNext()) {
         QHash<QString, QStatInfo>::iterator x = dit.next();
         QString path = x.key();
-        QStatInfo fi(path, true);
-        if (!path.endsWith(QLatin1Char('/')))
+        QStatInfo fi;
+        if (!path.endsWith(QLatin1Char('/'))) {
             fi = QStatInfo(path + QLatin1Char('/'), true);
+        } else {
+            fi = QStatInfo(path, true);
+        }
         if (!fi.dirEquals(x.value())) {
             if (!fi.exists()) {
                 dit.remove();
diff --git a/src/core/kernel/qcore_unix.cpp b/src/core/kernel/qcore_unix.cpp
index 2232f8017..860792749 100644
--- a/src/core/kernel/qcore_unix.cpp
+++ b/src/core/kernel/qcore_unix.cpp
@@ -22,6 +22,7 @@
 #include "qcore_unix_p.h"
 #include "qelapsedtimer.h"
 #include "qbytearray.h"
+#include "qfilesystemmetadata_p.h"
 #include "qdebug.h"
 
 #include <sys/select.h>
@@ -30,10 +31,19 @@
 
 QT_BEGIN_NAMESPACE
 
+QStatInfo::QStatInfo()
+    : m_mode(0),
+    m_uid(QFileSystemMetaData::nobodyID),
+    m_gid(QFileSystemMetaData::nobodyID),
+    m_mtime(0),
+    m_size(0)
+{
+}
+
 QStatInfo::QStatInfo(const QString &path, const bool listdir)
     : m_mode(0),
-    m_uid(-2),
-    m_gid(-2),
+    m_uid(QFileSystemMetaData::nobodyID),
+    m_gid(QFileSystemMetaData::nobodyID),
     m_mtime(0),
     m_size(0),
     m_path(path.toLocal8Bit())
diff --git a/src/core/kernel/qcore_unix_p.h b/src/core/kernel/qcore_unix_p.h
index 416656be3..f38e0fe6e 100644
--- a/src/core/kernel/qcore_unix_p.h
+++ b/src/core/kernel/qcore_unix_p.h
@@ -68,6 +68,7 @@ QT_BEGIN_NAMESPACE
 
 class Q_CORE_EXPORT QStatInfo {
 public:
+    QStatInfo();
     QStatInfo(const QString &path, const bool listdir = false);
     QStatInfo(const QStatInfo &other);
 
-- 
2.11.0