1 files changed, 4 insertions, 0 deletions
diff --git a/src/corelib/io/qnoncontiguousbytedevice_p.h b/src/corelib/io/qnoncontiguousbytedevice_p.h
index b6966ebd85..d1a99a14ab 100644
--- a/src/corelib/io/qnoncontiguousbytedevice_p.h
+++ b/src/corelib/io/qnoncontiguousbytedevice_p.h
@@ -69,6 +69,7 @@ public:
     virtual const char* readPointer(qint64 maximumLength, qint64 &len) = 0;
     virtual bool advanceReadPointer(qint64 amount) = 0;
     virtual bool atEnd() = 0;
+    virtual qint64 pos() { return -1; }
     virtual bool reset() = 0;
     void disableReset();
     bool isResetDisabled() { return resetDisabled; }
@@ -108,6 +109,7 @@ public:
     bool atEnd();
     bool reset();
     qint64 size();
+    qint64 pos();
 protected:
     QByteArray* byteArray;
     qint64 currentPosition;
@@ -123,6 +125,7 @@ public:
     bool atEnd();
     bool reset();
     qint64 size();
+    qint64 pos();
 protected:
     QSharedPointer<QRingBuffer> ringBuffer;
     qint64 currentPosition;
@@ -140,6 +143,7 @@ public:
     bool atEnd();
     bool reset();
     qint64 size();
+    qint64 pos();
 protected:
     QIODevice* device;
     QByteArray* currentReadBuffer;