QAbstractFileEngine: Add permission argument to open()

The new argument allows atomic creation of files with non-default
permissions.

Task-number: QTBUG-79750
Change-Id: I4c49455b41f924ba87148302c8d0f77f5de0832b
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>

1 files changed, 3 insertions, 2 deletions

diff --git a/src/corelib/io/qtemporaryfile.cpp b/src/corelib/io/qtemporaryfile.cpp
index 5ccb959288..4b587857a8 100644
--- a/src/corelib/io/qtemporaryfile.cpp
+++ b/src/corelib/io/qtemporaryfile.cpp
@@ -340,7 +340,8 @@ void QTemporaryFileEngine::setFileName(const QString &file)
     QFSFileEngine::setFileName(file);
 }
 
-bool QTemporaryFileEngine::open(QIODevice::OpenMode openMode)
+bool QTemporaryFileEngine::open(QIODevice::OpenMode openMode,
+                                std::optional<QFile::Permissions> permissions)
 {
     Q_D(QFSFileEngine);
     Q_ASSERT(!isReallyOpen());
@@ -348,7 +349,7 @@ bool QTemporaryFileEngine::open(QIODevice::OpenMode openMode)
     openMode |= QIODevice::ReadWrite;
 
     if (!filePathIsTemplate)
-        return QFSFileEngine::open(openMode);
+        return QFSFileEngine::open(openMode, permissions);
 
     QTemporaryFileName tfn(templateName);