1 files changed, 66 insertions, 0 deletions
diff --git a/akregator/src/mk4storage/metakit/include/mk4io.h b/akregator/src/mk4storage/metakit/include/mk4io.h
new file mode 100644
index 000000000..d70db9c52
--- /dev/null
+++ b/akregator/src/mk4storage/metakit/include/mk4io.h
@@ -0,0 +1,66 @@
+// mk4io.h --
+// $Id$
+// This is part of Metakit, the homepage is http://www.equi4.com/metakit/
+
+/** @file
+ * Declaration of the file stream and strategy classes.
+ */
+
+#ifndef __MK4IO_H__
+#define __MK4IO_H__
+
+#include <stdio.h>
+
+/////////////////////////////////////////////////////////////////////////////
+/// A file stream can be used to serialize using the stdio library.
+
+class c4_FileStream : public c4_Stream
+{
+public:
+    c4_FileStream (FILE* stream_, bool owned_ =false);
+    virtual ~c4_FileStream ();
+
+    virtual int Read(void* buffer_, int length_);
+    virtual bool Write(const void* buffer_, int length_);
+
+    FILE* _stream;
+    bool _owned;
+};
+
+/////////////////////////////////////////////////////////////////////////////
+/// A file strategy encapsulates code dealing with all file I/O.
+
+class c4_FileStrategy : public c4_Strategy
+{     
+public:
+        /// Construct a new strategy object
+    c4_FileStrategy (FILE* file_ =0);
+    virtual ~c4_FileStrategy ();
+
+        /// True if we can do I/O with this object
+    virtual bool IsValid() const;
+        /// Open a data file by name
+    virtual bool DataOpen(const char* fileName_, int mode_);
+        /// Read a number of bytes
+    virtual int  DataRead(t4_i32 pos_, void* buffer_, int length_);
+        /// Write a number of bytes, return true if successful
+    virtual void DataWrite(t4_i32 pos_, const void* buffer_, int length_);
+        /// Flush and truncate file
+    virtual void DataCommit(t4_i32 newSize_);
+        /// Support for memory-mapped files
+    virtual void ResetFileMapping();
+        /// Report total size of the datafile
+    virtual t4_i32 FileSize();
+        /// Return a good value to use as fresh generation counter
+    virtual t4_i32 FreshGeneration();
+
+protected:
+        /// Pointer to file object
+    FILE* _file;
+        /// Pointer to same file object, if it must be deleted at end
+    FILE* _cleanup;
+};
+
+/////////////////////////////////////////////////////////////////////////////
+
+#endif // __MK4IO_H__