[base] Introduce io_generator

base/io.h

@@ -0,0 +1,25 @@
+#ifndef BASE_IO_H
+#define BASE_IO_H
+
+#include "base/types.h"
+#include <stdint.h>
+
+//----------------------------------------------------------------
+
+namespace base {
+	enum req_op {
+		REQ_OP_READ,
+		REQ_OP_WRITE,
+		REQ_OP_DISCARD
+	};
+
+	struct io {
+		unsigned op_;
+		sector_t sector_;
+		sector_t size_;
+	};
+}
+
+//----------------------------------------------------------------
+
+#endif