#include <db_cxx.h>

int
Db::get_pagesize(u_int32_t *pagesizep);

The Db::get_pagesize() method returns the database's current page size, as set by the Db::set_pagesize() method. Note that if Db::set_pagesize() was not called by your application, then the default pagesize is selected based on the underlying filesystem I/O block size. If you call Db::get_pagesize() before you have opened the database, the value returned by this method is therefore the underlying filesystem I/O block size.

The Db::get_pagesize() method may be called only after the database has been opened.

The Db::get_pagesize() method either returns a non-zero error value or throws an exception that encapsulates a non-zero error value on failure, and returns 0 on success.