Summary
BitTorent protocol for peer-to-peer file sharing.

Metadata

Authors:

John Benediktsson

Words

Tuple classes

Class	Superclass	Slots
allowed-fast	tuple	index
bitfield	tuple	bitfield
cancel	tuple	index begin length
choke	tuple
extended	tuple	id payload
handshake	tuple	string reserved info-hash peer-id
have	tuple	index
have-all	tuple
have-none	tuple
interested	tuple
keep-alive	tuple
magnet	tuple	display-name exact-length exact-topic web-seed acceptable-source exact-source keyword-topic manifest-topic address-tracker select-only peer
not-interested	tuple
peer	disposable	torrent remote stream local handshake self-choking self-interested peer-choking peer-interested timer #pieces piece-length bitfield current-index current-piece
piece	tuple	index begin block
port	tuple	port
reject-request	tuple	index begin length
request	tuple	index begin length
suggest-piece	tuple	index
torrent	tuple	metainfo tracker peers
unchoke	tuple
unknown	tuple	id payload

Generic words

Word	Stack effect
handle-message	( peer message -- peer )
load-metainfo	( obj -- metainfo )
write-message	( message -- )

Symbol words

torrent-directory

torrent-max-block-size

torrent-peer-id

torrent-port

Ordinary words

Word	Stack effect
<handshake>	( info-hash peer-id -- handshake )
<peer>	( torrent remote -- peer )
<torrent>	( metainfo -- torrent )
>message	( bytes -- message )
ALPHANUMERIC	( -- value )
announce-url	( metainfo -- url )
bitfield-index	( n -- j i )
check-bitfield	( n bitfield -- ? )
choke-peer	( peer -- peer )
connect-peer	( peer -- peer )
fast-peer?	( peer -- ? )
handshake-peer	( peer -- peer )
http-get-bencode	( url -- obj )
info-hash	( metainfo -- hash )
load-tracker	( torrent -- response )
magnet-link>magnet	( url -- magnet-url )
message>	( message -- bytes )
next-block	( peer -- peer )
parse-message	( bytes -- message/f )
parse-peer4	( peerbin -- inet4 )
parse-peer4s	( peersbin -- inet4s )
parse-peer6	( peerbin -- inet6 )
parse-peer6s	( peersbin -- inet6s )
random-peer	( torrent -- peer )
random-peer-id	( -- bytes )
read-handshake	( -- handshake/f )
read-int	( -- n/f )
read-message	( -- message )
read-messages	( peer -- peer )
request-piece	( peer -- peer )
save-block	( peer -- peer )
scrape-url	( metainfo -- url/f )
send-event	( torrent event -- response )
set-bitfield	( elt n bitfield -- )
torrent-path	( torrent -- path )
tracker-url	( metainfo -- url )
unchoke-peer	( peer -- peer )
update-tracker	( client -- client )
verify-block	( peer -- peer )
with-debug	( quot -- )
with-peer	( peer quot -- )
write-handshake	( handshake -- )
write-int	( n -- )

Class predicate words

Word	Stack effect
allowed-fast?	( object -- ? )
bitfield?	( object -- ? )
cancel?	( object -- ? )
choke?	( object -- ? )
extended?	( object -- ? )
handshake?	( object -- ? )
have-all?	( object -- ? )
have-none?	( object -- ? )
have?	( object -- ? )
interested?	( object -- ? )
keep-alive?	( object -- ? )
magnet?	( object -- ? )
not-interested?	( object -- ? )
peer?	( object -- ? )
piece?	( object -- ? )
port?	( object -- ? )
reject-request?	( object -- ? )
request?	( object -- ? )
suggest-piece?	( object -- ? )
torrent?	( object -- ? )
unchoke?	( object -- ? )
unknown?	( object -- ? )

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