diff --git a/moontalk.c b/client/moontalk.c similarity index 100% rename from moontalk.c rename to client/moontalk.c diff --git a/moontalk.rb b/client/moontalk.rb similarity index 100% rename from moontalk.rb rename to client/moontalk.rb diff --git a/moontalk.tcl b/client/moontalk.tcl similarity index 100% rename from moontalk.tcl rename to client/moontalk.tcl diff --git a/server/eventloop-server-experiment/LICENSE b/server/eventloop-server-experiment/LICENSE new file mode 100644 index 0000000..f288702 --- /dev/null +++ b/server/eventloop-server-experiment/LICENSE @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/server/eventloop-server-experiment/NOT_MADE_BY_ME b/server/eventloop-server-experiment/NOT_MADE_BY_ME new file mode 100644 index 0000000..402d848 --- /dev/null +++ b/server/eventloop-server-experiment/NOT_MADE_BY_ME @@ -0,0 +1,2 @@ +this tool was made by an Anonymous third party, provided primarily at: +7ks473deh6ggtwqsvbqdurepv5i6iblpbkx33b6cydon3ajph73sssad.onion:50000 diff --git a/server/eventloop-server-experiment/check-gforth.4th b/server/eventloop-server-experiment/check-gforth.4th new file mode 100644 index 0000000..3966a25 --- /dev/null +++ b/server/eventloop-server-experiment/check-gforth.4th @@ -0,0 +1,15 @@ +: (line) ( n -- ) 0 DO [char] - emit LOOP ; +: (_warning) ( n -- ) dup (line) space ." Warning" space (line) ; +: (warning-line) ( -- ) 30 (_warning) ; +: check-gforth ( -- ) + s" gforth" environment? IF + s" 0.7.3" compare 0<> IF + (warning-line) cr + ." This code was developed for gforth version 0.7.3, " + ." other versions may or may not work." cr + (warning-line) cr cr + THEN + ELSE + ." This code depends on gforth specific C FFI." cr abort + THEN ; +check-gforth diff --git a/server/eventloop-server-experiment/connections.4th b/server/eventloop-server-experiment/connections.4th new file mode 100644 index 0000000..63423a6 --- /dev/null +++ b/server/eventloop-server-experiment/connections.4th @@ -0,0 +1,50 @@ + +256 constant CONNECTION_BUFFER_SIZE + +0 + cell +field connection.number + cell +field connection.fd + cell +field connection.connected + cell +field connection.bufferlen + CONNECTION_BUFFER_SIZE +field connection.buffer +constant /CONNECTION + +1024 10 * constant MAX_CONNECTIONS + +variable last-connection -1 last-connection ! +variable largest-index -1 largest-index ! +MAX_CONNECTIONS /CONNECTION * constant CONNECTIONS_SIZE +create connections CONNECTIONS_SIZE allot +connections CONNECTIONS_SIZE erase + +: (translate) ( index-u -- connection-addr ) + /CONNECTION * connections + ; +: (untranslate) ( connection-addr -- index-u ) + connections - /CONNECTION / ; +: (find-free) ( -- index-u flag ) + MAX_CONNECTIONS 0 DO + I (translate) connection.connected @ invert IF + I true UNLOOP EXIT + THEN + LOOP 0 false ; +: connections.append ( connection-addr -- flag ) + (find-free) IF + tuck (translate) /CONNECTION move + dup last-connection ! + dup largest-index @ > IF + largest-index ! + ELSE + drop + THEN + true + ELSE + 2drop false + THEN ; +: connections.count ( -- count-u ) + largest-index @ 1+ ; +: connections.at ( index-u -- connection-addr ) + (translate) ; +: connections.last ( -- connection-addr ) + last-connection @ (translate) ; +: connections.indexOf ( connection-addr -- index-u ) + (untranslate) ; diff --git a/server/eventloop-server-experiment/event-constants.4th b/server/eventloop-server-experiment/event-constants.4th new file mode 100644 index 0000000..7348ed5 --- /dev/null +++ b/server/eventloop-server-experiment/event-constants.4th @@ -0,0 +1,6 @@ + +0 constant EVENT_IDLE +1 constant EVENT_CONNECTION_NEW +2 constant EVENT_CONNECTION_CLOSED +3 constant EVENT_CONNECTION_SEND +4 constant EVENT_CONNECTION_RECV diff --git a/server/eventloop-server-experiment/eventhandlers.4th b/server/eventloop-server-experiment/eventhandlers.4th new file mode 100644 index 0000000..7c7fba7 --- /dev/null +++ b/server/eventloop-server-experiment/eventhandlers.4th @@ -0,0 +1,26 @@ +32 constant MAX_EVENTHANDLERS + +0 + cell +field eventhandler.eventid + cell +field eventhandler.xt +constant /EVENTHANDLER + +MAX_EVENTHANDLERS /EVENTHANDLER * constant EVENTHANDLERS_SIZE +create eventhandlers EVENTHANDLERS_SIZE allot +eventhandlers EVENTHANDLERS_SIZE erase + +: (translate) ( index-u -- eventhandler-addr ) /EVENTHANDLER * eventhandlers + ; +: (eventhandler-set?) ( eventhandler-addr -- flag ) eventhandler.xt @ 0<> ; +: (set-eventhandler) ( handler-xt eventid-u eventhandler-addr -- ) + tuck eventhandler.eventid ! eventhandler.xt ! ; +: eventhandlers.remove ( index-u -- ) + (translate) /EVENTHANDLER erase ; +: eventhandlers.append ( handler-xt eventid-u -- index-u ) + MAX_EVENTHANDLERS 0 DO + I (translate) dup (eventhandler-set?) invert IF + (set-eventhandler) UNLOOP EXIT + ELSE + drop + THEN + LOOP + true abort" no free eventhandler slots!" ; diff --git a/server/eventloop-server-experiment/eventloop.4th b/server/eventloop-server-experiment/eventloop.4th new file mode 100644 index 0000000..86e1b0a --- /dev/null +++ b/server/eventloop-server-experiment/eventloop.4th @@ -0,0 +1,43 @@ +require events.4th +require eventhandlers.4th + +variable continue +: (call) ( eventdata-u eventid-u eventhandler-addr -- ) + eventhandler.xt @ execute ; +: (handles?) ( eventid-u eventhandler-addr -- flag ) + tuck eventhandler.eventid @ = swap eventhandler.xt @ 0<> and ; +: eventloop.has-events? ( -- flag ) + events.has-item? ; +: eventloop.stop-propagation ( -- ) + false continue ! ; +: eventloop.dispatch ( -- ) + true continue ! + events.dequeue + MAX_EVENTHANDLERS 0 DO + continue @ invert IF + 2drop UNLOOP EXIT + THEN + 2dup I (translate) 2dup (handles?) IF + (call) + ELSE + drop 2drop + THEN + LOOP 2drop ; + +: eventloop.run ( -- ) + BEGIN + eventloop.has-events? IF + eventloop.dispatch + ELSE + EXIT + THEN + AGAIN ; + +: eventloop.idlerun ( -- ) + BEGIN + eventloop.has-events? IF + eventloop.dispatch + ELSE + 0 0 events.enqueue eventloop.dispatch + THEN + AGAIN ; diff --git a/server/eventloop-server-experiment/events.4th b/server/eventloop-server-experiment/events.4th new file mode 100644 index 0000000..3e962f0 --- /dev/null +++ b/server/eventloop-server-experiment/events.4th @@ -0,0 +1,88 @@ +256 constant MAX_EVENTS + +0 + cell +field event.id + cell +field event.data +constant /EVENT + +0 + cell +field eventlink.next + /EVENT +field eventlink.event +constant /EVENTLINK + +variable first-event +variable last-event +variable free-event +MAX_EVENTS /EVENTLINK * constant EVENTS_SIZE +create events EVENTS_SIZE allot + +: (translate) ( index-u -- eventlink-addr ) + /EVENTLINK * events + ; +: (link-to-next) ( index-u -- ) + dup 1+ (translate) swap (translate) eventlink.next ! ; +: (fix-last-link) ( -- ) + MAX_EVENTS 1- (translate) eventlink.next 0 swap ! ; +: (set-first-free) ( -- ) + 0 (translate) free-event ! ; +: (link-free) ( -- ) + MAX_EVENTS 0 DO I (link-to-next) LOOP + (fix-last-link) + (set-first-free) ; +: (free-available?) ( -- flag ) + free-event @ 0<> ; +: (assert-free-available) ( -- ) + (free-available?) invert abort" no free eventlinks available." ; +: (next-free) ( -- eventlink-addr ) + (assert-free-available) + free-event @ dup eventlink.next @ free-event ! ; + +: events.clear ( -- ) + 0 first-event ! 0 last-event ! + events EVENTS_SIZE erase + (link-free) ; +: (set-next-null) ( eventlink-addr -- ) + dup eventlink.next 0 swap ! ; +: (first-event-exists?) ( -- flag ) first-event @ 0<> ; +: (last-event-exists?) ( -- flag ) last-event @ 0<> ; +: (as-first-event) ( eventlink-addr -- ) first-event ! ; +: (as-last-event) ( eventlink-addr -- ) last-event ! ; +: (after-last-event) ( eventlink-addr -- ) + dup last-event @ eventlink.next ! + last-event ! ; +: (append-event) ( eventlink-addr -- ) + (set-next-null) + (first-event-exists?) invert IF + dup (as-first-event) + THEN + (last-event-exists?) IF + dup (after-last-event) + ELSE + dup (as-last-event) + THEN drop ; +: (set-eventdata) ( data-u id-u eventlink-addr -- ) + eventlink.event tuck event.id ! event.data ! ; +: events.enqueue ( data-u id-u -- ) + (next-free) dup >r (set-eventdata) r> (append-event) ; +: (get-eventdata) ( eventlink-addr -- data-u id-u ) + eventlink.event dup event.data @ swap event.id @ ; +: (assert-first-exists) ( -- ) + (first-event-exists?) invert abort" no events in queue" ; +: (check-first-and-last) ( -- ) + first-event @ 0= IF + 0 last-event ! + THEN ; +: (get-first-event) ( -- eventlink-addr ) + first-event @ ; +: (free-event) ( eventlink-addr -- ) + dup eventlink.next free-event @ swap ! + free-event ! ; +: (set-first-event-to-next) ( -- ) + first-event @ eventlink.next @ first-event ! + (check-first-and-last) ; +: events.dequeue ( -- data-u id-u ) + (assert-first-exists) (get-first-event) (set-first-event-to-next) + dup (free-event) (get-eventdata) ; +: events.has-item? ( -- flag ) (first-event-exists?) ; + +\ Clear events, initialize events array. +events.clear diff --git a/server/eventloop-server-experiment/main.4th b/server/eventloop-server-experiment/main.4th new file mode 100644 index 0000000..f3f7222 --- /dev/null +++ b/server/eventloop-server-experiment/main.4th @@ -0,0 +1,18 @@ +require check-gforth.4th +require eventloop.4th +require event-constants.4th +require server.4th + +: custom-eventloop ( -- ) + BEGIN + eventloop.has-events? IF + eventloop.dispatch + ELSE + server-idle? IF + 10 ms false server-idle! + THEN + 0 0 events.enqueue eventloop.dispatch + THEN + AGAIN ; + +' custom-eventloop catch close-server throw diff --git a/server/eventloop-server-experiment/sendbuffer.4th b/server/eventloop-server-experiment/sendbuffer.4th new file mode 100644 index 0000000..4bc00bf --- /dev/null +++ b/server/eventloop-server-experiment/sendbuffer.4th @@ -0,0 +1,28 @@ +variable sendbuffer-len 0 sendbuffer-len ! +2048 constant SENDBUFFER_SIZE +create sendbuffer SENDBUFFER_SIZE allot + +\ Calling C here is just optimization. +c-library sanitizelib +\c void csanitize(char *buffer, int buffersize) { +\c int lastIsNewline = buffer[buffersize-1] == '\n' ? 1 : 0; +\c for(int i = 0; i127) { buffer[i] = '?'; } +\c } +\c if(lastIsNewline) { buffer[buffersize-1] = '\n'; } +\c return; +\c } + c-function csanitize csanitize a n -- void +end-c-library + +: sendbuffer-reset ( -- ) 0 sendbuffer-len ! ; +: (overflow?) ( n -- flag ) + sendbuffer-len @ + SENDBUFFER_SIZE u> ; +: (append) ( str -- ) + dup -rot sendbuffer sendbuffer-len @ + swap move + sendbuffer-len +! ; +: sendbuffer-append ( str -- ) + dup (overflow?) abort" sendbuffer overflow" (append) ; +: sendbuffer-sanitize ( -- ) + sendbuffer sendbuffer-len @ csanitize ; +: sendbuffer@ ( -- str ) sendbuffer sendbuffer-len @ ; diff --git a/server/eventloop-server-experiment/server.4th b/server/eventloop-server-experiment/server.4th new file mode 100644 index 0000000..f53cb14 --- /dev/null +++ b/server/eventloop-server-experiment/server.4th @@ -0,0 +1,230 @@ +require unix/socket.fs + +require socket-extensions.4th +require connections.4th +require sendbuffer.4th + +AF_INET constant SERVER_SOCKET_DOMAIN + SOCK_STREAM + SOCK_NONBLOCK or + constant SERVER_SOCKET_TYPE + 0 constant SERVER_SOCKET_PROTOCOL + 0 constant SERVER_ADDR + 50000 constant SERVER_PORT + 128 constant SERVER_LISTEN_BACKLOG + +\ Listening file descriptor. +variable listenfd +0 listenfd ! + +\ Idle detection. +variable idle false idle ! +: server-idle? ( -- flag ) idle @ ; +: server-idle! ( flag -- ) idle ! ; + +\ Temporary structs. +create con /CONNECTION allot +create saddr /sockaddr_in allot +create optval /option_value allot + +: (assert-setsockopt) ( result-n -- ) + 0< abort" making socket reusable failed" ; +: (optval-true!) ( -- ) + 1 optval l! ; +: (make-reusable) ( socket-fd-n -- ) + (optval-true!) + SOL_SOCKET SO_REUSEADDR optval /option_value setsockopt (assert-setsockopt) ; + +: (saddr!) ( protocol-n sin_addr-n port-n -- ) + htons saddr port w! + saddr sin_addr l! + saddr family w! ; + +: (assert-socket) ( result-n -- result-n ) + dup 0< abort" socket() failed." ; +: (assert-bind) ( result-n -- ) + 0< abort" bind failed." ; +: (assert-listen) ( result-n -- ) + 0< abort" listen failed." ; + +: (erase-saddr) ( -- ) + saddr /sockaddr_in erase ; +: (create-socket) ( -- ) + SERVER_SOCKET_DOMAIN + SERVER_SOCKET_TYPE + SERVER_SOCKET_PROTOCOL + socket (assert-socket) listenfd ! ; +: (make-socket-reusable) ( -- ) + listenfd @ (make-reusable) ; +: (set-saddr) ( -- ) + SERVER_SOCKET_DOMAIN SERVER_ADDR SERVER_PORT (saddr!) ; +: (bind-socket) ( -- ) + listenfd @ saddr /sockaddr_in bind (assert-bind) ; +: (listen-socket) ( -- ) + listenfd @ SERVER_LISTEN_BACKLOG listen() (assert-listen) ; +: (server-info) ( -- ) + cr cr ." Server listening at port: " SERVER_PORT . cr ; +: initialize-server ( -- ) + (erase-saddr) + (create-socket) + (make-socket-reusable) + (set-saddr) + (bind-socket) + (listen-socket) + (server-info) ; + +: (perform-disconnect) ( connection-addr -- ) + dup connection.connected false swap ! + connection.fd @ close() throw ; + +: (close-clients) ( -- ) + connections.count 0= IF + EXIT + THEN + connections.count 0 DO + I connections.at connection.connected @ true = IF + I connections.at (perform-disconnect) + THEN + LOOP ; + +: (assert-close()) ( result-n -- ) + 0<> abort" close failed" ; +: (close-server) ( -- ) + listenfd @ close() (assert-close()) ; + +: (close-server-info) ( -- ) + cr ." Closed server connections." cr ; +: close-server ( -- ) + (close-clients) (close-server) (close-server-info) ; + +: (queue-disconnect) ( connection-addr -- ) + dup (perform-disconnect) EVENT_CONNECTION_CLOSED events.enqueue ; + +: (try-accept) ( -- c-result-n ) + listenfd @ 0 0 accept() ; +: (accept-error) ( accept-result-n -- ) + errno EAGAIN <> abort" accept error" drop ; +: (erase-connection) ( connection-addr -- ) + /CONNECTION erase ; +: (set-connection-number) ( -- ) + connections.last dup connections.indexOf 1+ swap connection.number ! ; +: (enqueue-new-connection) ( -- ) + connections.last EVENT_CONNECTION_NEW events.enqueue ; +: (store-connection) ( connection-addr -- ) + dup >r connections.append IF + (set-connection-number) + (enqueue-new-connection) + rdrop + ELSE + ." Warning: failed to store connection, disconnecting client." cr + r> (perform-disconnect) + THEN ; +: (con!) ( fd-n connected-flag -- ) + con connection.connected ! + con connection.fd ! ; +: (accept-connection) ( fd-n -- ) + con (erase-connection) + true (con!) + con (store-connection) ; +: (server-idle-accept) ( -- ) + (try-accept) dup 0< IF + (accept-error) + ELSE + (accept-connection) + THEN ; + +: (connected?) ( connection-addr -- flag ) + connection.connected @ ; +: (try-recv) ( connection-addr -- recv-result-n ) + dup connection.fd @ + swap connection.buffer + CONNECTION_BUFFER_SIZE + MSG_DONTWAIT + recv ; +: (recv-error?) ( c-result-n -- flag ) 0< ; +: (recv) ( recv-result-n connection-addr -- ) + 2dup connection.bufferlen ! swap + 0> IF + EVENT_CONNECTION_RECV events.enqueue + ELSE \ disconnected + (queue-disconnect) + THEN +; +: (recv-warning) ( -- ) ." Warning: recv failed, disconnecting client." cr ; +: (recv-error) ( recv-result-n connection-addr -- ) + errno EAGAIN <> IF + (queue-disconnect) drop + (recv-warning) + ELSE + 2drop + THEN ; +: (connection-recv) ( connection-addr -- ) + dup (try-recv) tuck (recv-error?) IF + (recv-error) + ELSE + (recv) + THEN ; + +: (server-idle-recv) ( -- ) + true server-idle! + connections.count 0= IF + EXIT + THEN + connections.count 0 DO + I connections.at dup (connected?) IF + (connection-recv) + ELSE + drop + THEN + LOOP ; + +: server-idle-accept ( eventdata-n eventid-n -- ) + 2drop (server-idle-accept) ; +: server-idle-recv ( eventdata-n eventid-n -- ) + 2drop (server-idle-recv) ; +: server-connection-new ( connection-addr eventid-n -- ) + 2drop ." New client connected!" cr ; +: server-connection-closed ( connection-addr eventid-n -- ) + 2drop ." Client disconnected." cr ; + +: (to-string) ( n -- addr c ) s>d <# #s #> ; +: (connectionnumber@) ( connection-addr -- c-addr u ) + connection.number @ (to-string) ; +: (connectionbuffer@) ( connection-addr -- c-addr u ) + dup connection.buffer swap connection.bufferlen @ ; +: (format-sendbuffer) ( from-connection-addr -- ) + >r sendbuffer-reset + s" Anon " sendbuffer-append + r@ (connectionnumber@) sendbuffer-append + s" : " sendbuffer-append + r> (connectionbuffer@) sendbuffer-append + sendbuffer-sanitize ; +: (connected?) ( connection-addr -- ) + connection.connected @ ; +: (different-connection?) ( from-connection-addr to-connection-addr -- ) + <> ; +: (send?) ( from-connection-addr to-connection-addr -- ) + tuck (different-connection?) swap (connected?) and ; +: (check-send) ( result-n -- ) + 0< IF ." Warning: send failed." cr THEN ; +: (send) ( from-connection-addr to-connection-addr -- ) + nip connection.fd @ sendbuffer@ 0 send (check-send) ; +: (try-send) ( from-connection-addr to-connection-addr -- ) + 2dup (send?) IF + (send) + ELSE + 2drop + THEN ; +: server-recv ( from-connection-addr eventid-n ) + drop dup (format-sendbuffer) + connections.count 0 DO + dup I connections.at (try-send) + LOOP drop ; + +' server-idle-accept EVENT_IDLE eventhandlers.append +' server-idle-recv EVENT_IDLE eventhandlers.append +' server-connection-new EVENT_CONNECTION_NEW eventhandlers.append +' server-connection-closed EVENT_CONNECTION_CLOSED eventhandlers.append +' server-recv EVENT_CONNECTION_RECV eventhandlers.append + +initialize-server diff --git a/server/eventloop-server-experiment/socket-extensions.4th b/server/eventloop-server-experiment/socket-extensions.4th new file mode 100644 index 0000000..714826e --- /dev/null +++ b/server/eventloop-server-experiment/socket-extensions.4th @@ -0,0 +1,17 @@ +\ Gforth 0.7.3 doesn't seem to have these defined. + 2 Constant AF_INET + $40 Constant MSG_DONTWAIT + 2048 constant SOCK_NONBLOCK + 1 constant SOL_SOCKET + 2 Constant SO_REUSEADDR + 11 constant EAGAIN + +\ Just some size definitions for the C structs / values. +sockaddr_in nip constant /sockaddr_in +4 constant /option_value + +\ C FFI for functions which aren't defined in unix/socket.fs +c-library socketext + c-function close() close n -- n ( fd -- result ) + c-function setsockopt setsockopt n n n a n -- n ( sockfd level optname optval optlen -- r ) +end-c-library