1Changes from the earlier BETA releases. 2 3o dbm_prep does everything now, so dbm_open is just a simple 4 wrapper that builds the default filenames. dbm_prep no longer 5 requires a (DBM *) db parameter: it allocates one itself. It 6 returns (DBM *) db or (DBM *) NULL. 7 8o makroom is now reliable. In the common-case optimization of the page 9 split, the page into which the incoming key/value pair is to be inserted 10 is write-deferred (if the split is successful), thereby saving a cosly 11 write. BUT, if the split does not make enough room (unsuccessful), the 12 deferred page is written out, as the failure-window is now dependent on 13 the number of split attempts. 14 15o if -DDUFF is defined, hash function will also use the DUFF construct. 16 This may look like a micro-performance tweak (maybe it is), but in fact, 17 the hash function is the third most-heavily used function, after read 18 and write. 19