first pass at making DB use basic integral types (the Alpha port)

typo

the __bt_search value shouldn't be stored in a static, can't pin
across calls in that case

add B_DB_{LOCK,SHMEM,TXN}, local copies of DB_{LOCK,SHMEM,TXN}
add bt_pinned field, if DB_LOCK not set, pin page across calls and don't
copy key/data pair

4.4BSD snapshot (revision 8.1); add 1993 to copyright

support 64K pages

break BTF flags up into btree/recno (B_, R_) categories

restore BTF_NODUPS and BTF_RECNO to their original values, and note
that they cannot be altered
recognize different byte orders automatically; m_lorder no longer used

clean up mmap and file pointer uses in recno interface

bcmp/bcopy/bzero -> memcmp/memmove/memset

index -> indx_t

add BTF_RINMEM for recno in memory trees
add CLR, ISSET

implement free page reuse

make recno eof flag part of each BT struct

fix BTDATAOFF macro to work even if the compiler pads to long boundary

can't increment an lvalue, but gcc lets you anyway

delete maxkeypage; do pointer arithmetic in the macros instead of using
+= sizeof; consolidate macros; replace minkeypage with bt_ovflsize; lots
of minor cleanups.

Rev #2. Redo the btree code add recno's and checkpoint

ANSI prototypes

date and time created 91/01/23 08:12:54 by mao