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, 6 insertions, 0 deletions

diff --git a/src/corelib/io/qfsfileengine.cpp b/src/corelib/io/qfsfileengine.cpp
index 1b0a28c..089f1a1 100644
--- a/src/corelib/io/qfsfileengine.cpp
+++ b/src/corelib/io/qfsfileengine.cpp
@@ -364,6 +364,12 @@ bool QFSFileEnginePrivate::closeFdFh()
     if (closeFileHandle) {
         int ret;
         do {
+#ifdef Q_OS_SYMBIAN
+            if (symbianFile.SubSessionHandle()) {
+                symbianFile.Close();
+                ret = 0;
+            } else
+#endif
             if (fh) {
                 // Close buffered file.
                 ret = fclose(fh) != 0 ? -1 : 0;