1 files changed, 98 insertions, 0 deletions
diff --git a/shared/file_io.h b/shared/file_io.h
new file mode 100644
index 00000000..c3fb3f65
--- /dev/null
+++ b/shared/file_io.h
@@ -0,0 +1,98 @@
+// **************************************************************************
+// * This file is part of the FreeFileSync project. It is distributed under *
+// * GNU General Public License: http://www.gnu.org/licenses/gpl.html       *
+// * Copyright (C) 2008-2010 ZenJu (zhnmju123 AT gmx.de)                    *
+// **************************************************************************
+//
+#ifndef FILEIO_H_INCLUDED
+#define FILEIO_H_INCLUDED
+
+#include <wx/stream.h>
+
+#ifdef FFS_WIN
+#include <wx/msw/wrapwin.h> //includes "windows.h"
+#elif defined FFS_LINUX
+#include <cstdio>
+#endif
+
+#include "zstring.h"
+#include "file_error.h"
+
+namespace ffs3
+{
+//file IO optimized for sequential read/write accesses + better error reporting + long path support (following symlinks)
+
+class FileInput
+{
+public:
+    FileInput(const Zstring& filename); //throw (FileError, ErrorNotExisting)
+    ~FileInput();
+
+    size_t read(void* buffer, size_t bytesToRead); //throw FileError(); returns actual number of bytes read
+    bool eof(); //end of file reached
+
+private:
+#ifdef FFS_WIN
+    HANDLE fileHandle;
+    bool eofReached;
+#elif defined FFS_LINUX
+    FILE* fileHandle;
+#endif
+    const Zstring filename_;
+};
+
+
+class  FileOutput
+{
+public:
+    FileOutput(const Zstring& filename); //throw FileError()
+    ~FileOutput();
+
+    void write(const void* buffer, size_t bytesToWrite); //throw FileError()
+    void close(); //close file stream
+private:
+#ifdef FFS_WIN
+    HANDLE fileHandle;
+#elif defined FFS_LINUX
+    FILE* fileHandle;
+#endif
+    const Zstring filename_;
+};
+
+
+//############# wxWidgets stream adapter #############
+// can be used as base classes (have virtual destructors)
+class FileInputStream : public wxInputStream
+{
+public:
+    FileInputStream(const Zstring& filename) : //throw FileError()
+        fileObj(filename) {}
+
+private:
+    virtual size_t OnSysRead(void* buffer, size_t bufsize) //throw FileError()
+    {
+        return fileObj.read(buffer, bufsize);
+    }
+
+    FileInput fileObj;
+};
+
+
+class FileOutputStream : public wxOutputStream
+{
+public:
+    FileOutputStream(const Zstring& filename) : //throw FileError()
+        fileObj(filename) {}
+
+private:
+    virtual size_t OnSysWrite(const void* buffer, size_t bufsize) //throw FileError()
+    {
+        fileObj.write(buffer, bufsize);
+        return bufsize;
+    }
+
+    FileOutput fileObj;
+};
+}
+
+#endif // FILEIO_H_INCLUDED