Add MetadataFile / Replicator class and initial IOC-write logic.

src/Replicator.h

@@ -0,0 +1,33 @@
+#ifndef REPLICATOR_H_
+#define REPLICATOR_H_
+
+//#include "ThreadPool.h"
+#include <sys/types.h>
+#include <stdint.h>
+
+namespace storagemanager
+{
+
+//	64-bit offset
+//	64-bit length
+//	<length-bytes of data to write at specified offset>
+
+class Replicator
+{
+    public:
+        static Replicator *get();
+        virtual ~Replicator();
+
+        int addJournalEntry(const char *filename, const uint8_t *data, off_t offset, size_t length);
+        int newObject(const char *filename, const uint8_t *data, size_t length);
+        int remove(const char *key ,uint8_t flags);
+
+
+    private:
+        Replicator();
+        //ThreadPool threadPool;
+};
+
+}
+
+#endif