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-rw-r--r--src/corelib/io/qfsfileengine_unix.cpp17
1 files changed, 17 insertions, 0 deletions
diff --git a/src/corelib/io/qfsfileengine_unix.cpp b/src/corelib/io/qfsfileengine_unix.cpp
index ca5af924e9..ff77278dc1 100644
--- a/src/corelib/io/qfsfileengine_unix.cpp
+++ b/src/corelib/io/qfsfileengine_unix.cpp
@@ -780,6 +780,23 @@ bool QFSFileEnginePrivate::unmap(uchar *ptr)
#endif
}
+/*!
+ \reimp
+*/
+bool QFSFileEngine::clone(int sourceHandle)
+{
+#if defined(Q_OS_LINUX)
+ Q_D(QFSFileEngine);
+# if !defined FICLONE
+# define FICLONE _IOW (0x94, 9, int)
+# endif
+ return ::ioctl(d->fd, FICLONE, sourceHandle) == 0;
+#else
+ Q_UNUSED(sourceHandle);
+ return false;
+#endif
+}
+
QT_END_NAMESPACE
#endif // QT_NO_FSFILEENGINE