Week 02 Lectures (18)

Single-file Storage Manager (cont)

Each file segment consists of a number fixed-size blocks

The following data/constant definitions are useful

#define PAGESIZE 2048   // bytes per page

typedef long PageId;    // PageId is block index
                        // pageOffset=PageId*PAGESIZE

typedef char *Page;     // pointer to page/block buffer

Typical PAGESIZE values: 1024, 2048, 4096, 8192