Enable symbian IO code in the build

This patch contains several changes that needed to be done atomically.
The native file path im QFileSystemEntry is changed from 8 bit to 16 bit
character set.
QFsFileEngine has some new symbian specific code (as the unix code does
not compile with the above change), and forwards more calls to the new
QFileSystemEngine.
Unix implementations of link, rename and remove are moved to the unix
version of this class, so less ifdef'ing is needed.
Finally, io.pri now selects the _symbian.cpp source files instead of the
_unix.cpp equivalents when building for symbian.

1 files changed, 28 insertions, 0 deletions

diff --git a/src/corelib/io/qfsfileengine_p.h b/src/corelib/io/qfsfileengine_p.h
index 6e5f30e6c2..a3733d8b4d 100644
--- a/src/corelib/io/qfsfileengine_p.h
+++ b/src/corelib/io/qfsfileengine_p.h
@@ -60,6 +60,10 @@
 #include <QtCore/private/qfilesystemmetadata_p.h>
 #include <qhash.h>
 
+#ifdef Q_OS_SYMBIAN
+#include <f32file.h>
+#endif
+
 #ifndef QT_NO_FSFILEENGINE
 
 QT_BEGIN_NAMESPACE
@@ -115,6 +119,30 @@ public:
 #endif
 
     FILE *fh;
+#ifdef Q_OS_SYMBIAN
+#ifdef  SYMBIAN_ENABLE_64_BIT_FILE_SERVER_API
+    RFile64 symbianFile;
+    TInt64 symbianFilePos;
+#else
+    RFile symbianFile;
+    
+    /**
+     * The cursor position in the underlying file.  This differs
+     * from devicePos because the latter is updated on calls to
+     * writeData, even if no data was physically transferred to
+     * the file, but instead stored in the write buffer.
+     * 
+     * iFilePos is updated on calls to RFile::Read and
+     * RFile::Write.  It is also updated on calls to seek() but
+     * RFile::Seek is not called when that happens because
+     * Symbian supports positioned reads and writes, saving a file
+     * server call, and because Symbian does not support seeking
+     * past the end of a file.  
+     */
+    TInt symbianFilePos;
+#endif
+#endif
+
 #ifdef Q_WS_WIN
     HANDLE fileHandle;
     HANDLE mapHandle;