NOTES.txt

@@ -1,10 +1,3 @@
-OPEN LOOPS - 2025-11-12
-    - websockets
-        - separate websocket handling from websocket parsing/sending
-    - do renaming
-    - make wfc not terrible
-
-
 VIDEO 1 - 2025-09-16
     TODONE
         - add qhl as dep

src/fd_client.erl

@@ -13,7 +13,7 @@
 %%% http://erlang.org/doc/design_principles/spec_proc.html
 %%% @end
 
--module(fd_http_client).
+-module(fd_client).
 -vsn("0.1.0").
 -author("Peter Harpending <peterharpending@qpq.swiss>").
 -copyright("Peter Harpending <peterharpending@qpq.swiss>").
@@ -291,7 +291,7 @@ respond_static(Sock, not_found) ->
          NewReceived :: binary().
 
 ws_tetris(Sock, Request, Received) ->
-    error(nyi).
+    .
 
 
 
@@ -303,7 +303,7 @@ ws_tetris(Sock, Request, Received) ->
 
 ws_tetris2(Sock, Request, Received) ->
     %tell("~p: ws_tetris request: ~tp", [?LINE, Request]),
-    case qhl_ws:handshake(Request) of
+    case fd_ws:handshake(Request) of
         {ok, Response} ->
             fd_http_utils:respond(Sock, Response),
             {ok, TetrisPid} = fd_tetris:start_link(),
@@ -317,7 +317,7 @@ ws_tetris2(Sock, Request, Received) ->
 -spec ws_tetris_loop(Sock, Tetris, Frames, Received) -> NewReceived
     when Sock        :: gen_tcp:socket(),
          Tetris      :: pid(),
-         Frames      :: [qhl_ws:frame()],
+         Frames      :: [fd_ws:frame()],
          Received    :: binary(),
          NewReceived :: binary().
 
@@ -329,7 +329,7 @@ ws_tetris_loop(Sock, Tetris, Frames, Received) ->
             receive
                 {tcp, Sock, Bin} ->
                     Rcv1 = <<Received/binary, Bin/binary>>,
-                    case qhl_ws:recv(Sock, Rcv1, 3_000, Frames) of
+                    case fd_ws:recv(Sock, Rcv1, 3_000, Frames) of
                         {ok, WsMsg, NewFrames, Rcv2} ->
                             ok = fd_tetris:ws_msg(Tetris, WsMsg),
                             ws_tetris_loop(Sock, Tetris, NewFrames, Rcv2);
@@ -338,7 +338,7 @@ ws_tetris_loop(Sock, Tetris, Frames, Received) ->
                     end;
                 {tetris, Message} ->
                     ok = log(info, "~p tetris: ~p", [self(), Message]),
-                    ok = qhl_ws:send(Sock, {text, Message}),
+                    ok = fd_ws:send(Sock, {text, Message}),
                     ws_tetris_loop(Sock, Tetris, Frames, Received);
                 {tcp_closed, Sock}        -> {error, tcp_closed};
                 {tcp_error, Sock, Reason} -> {error, {tcp_error, Reason}}
@@ -363,7 +363,7 @@ ws_echo(Sock, Request) ->
     end.
 
 ws_echo2(Sock, Request) ->
-    case qhl_ws:handshake(Request) of
+    case fd_ws:handshake(Request) of
         {ok, Response} ->
             fd_http_utils:respond(Sock, Response),
             ws_echo_loop(Sock);
@@ -377,15 +377,15 @@ ws_echo_loop(Sock) ->
 
 ws_echo_loop(Sock, Frames, Received) ->
     tell("~p ws_echo_loop(Sock, ~tp, ~tp)", [self(), Frames, Received]),
-    case qhl_ws:recv(Sock, Received, 5*qhl_ws:min(), Frames) of
+    case fd_ws:recv(Sock, Received, 5*fd_ws:min(), Frames) of
         {ok, Message, NewFrames, NewReceived} ->
             tell("~p echo message: ~tp", [self(), Message]),
             % send the same message back
-            ok = qhl_ws:send(Sock, Message),
+            ok = fd_ws:send(Sock, Message),
             ws_echo_loop(Sock, NewFrames, NewReceived);
         Error ->
             tell(error, "ws_echo_loop: error: ~tp", [Error]),
-            qhl_ws:send(Sock, {close, <<>>}),
+            fd_ws:send(Sock, {close, <<>>}),
             error(Error)
     end.
 

src/fd_client_man.erl

@@ -9,7 +9,7 @@
 %%% OTP should take care of for us.
 %%% @end
 
--module(fd_http_client_man).
+-module(fd_client_man).
 -vsn("0.1.0").
 -behavior(gen_server).
 -author("Peter Harpending <peterharpending@qpq.swiss>").

src/fd_client_sup.erl

@@ -13,7 +13,7 @@
 %%% http://erlang.org/doc/design_principles/sup_princ.html#id79244
 %%% @end
 
--module(fd_http_client_sup).
+-module(fd_client_sup).
 -vsn("0.1.0").
 -behaviour(supervisor).
 -author("Peter Harpending <peterharpending@qpq.swiss>").

src/fd_clients.erl

@@ -8,7 +8,7 @@
 %%% See: http://erlang.org/doc/apps/kernel/application.html
 %%% @end
 
--module(fd_http).
+-module(fd_clients).
 -vsn("0.1.0").
 -behavior(supervisor).
 -author("Peter Harpending <peterharpending@qpq.swiss>").
@@ -32,17 +32,17 @@ start_link() ->
 
 init(none) ->
     RestartStrategy = {rest_for_one, 1, 60},
-    HttpClientMan = {fd_http_client_man,
+    ClientMan = {fd_client_man,
-                     {fd_http_client_man, start_link, []},
+                 {fd_client_man, start_link, []},
                  permanent,
                  5000,
                  worker,
-                     [fd_http_client_man]},
+                 [fd_client_man]},
-    HttpClientSup = {fd_http_client_sup,
+    ClientSup = {fd_client_sup,
-                     {fd_http_client_sup, start_link, []},
+                 {fd_client_sup, start_link, []},
                  permanent,
                  5000,
                  supervisor,
-                     [fd_http_client_sup]},
+                 [fd_client_sup]},
-    Children  = [HttpClientSup, HttpClientMan],
+    Children  = [ClientSup, ClientMan],
     {ok, {RestartStrategy, Children}}.

src/fd_http_utils.erl

@@ -7,10 +7,7 @@
     http_err/2,
     respond/2,
     fmtresp/1
-]).
+])
-
--include("http.hrl").
--include("$zx_include/zx_logger.hrl").
 
 
 -spec new_cookie() -> Cookie

src/fd_sup.erl

@@ -36,8 +36,8 @@ start_link() ->
 
 init([]) ->
     RestartStrategy = {one_for_one, 1, 60},
-    Httpd     = {fd_http,
+    Clients   = {fd_clients,
-                 {fd_http, start_link, []},
+                 {fd_clients, start_link, []},
                  permanent,
                  5000,
                  supervisor,
@@ -60,5 +60,5 @@ init([]) ->
                  5000,
                  worker,
                  [fd_cache]},
-    Children  = [Httpd, Chat, FileCache, Cache],
+    Children  = [Clients, Chat, FileCache, Cache],
     {ok, {RestartStrategy, Children}}.

src/fd_tetris.erl

@@ -33,7 +33,7 @@
 
 -spec ws_msg(Tetris, Message) -> ok
     when Tetris  :: pid(),
-         Message :: qhl_ws:ws_msg().
+         Message :: fd_ws:ws_msg().
 
 ws_msg(Tetris, Msg) ->
     gen_server:cast(Tetris, {ws_msg, Msg}).

src/fd_ws.erl

@@ -1,7 +1,7 @@
 % @doc websockets
 %
 % ref: https://datatracker.ietf.org/doc/html/rfc6455
--module(qhl_ws).
+-module(fd_ws).
 
 -export_type([
     opcode/0,
@@ -19,6 +19,7 @@
 ]).
 
 -include("http.hrl").
+-include("$zx_include/zx_logger.hrl").
 
 
 -define(MAX_PAYLOAD_SIZE, ((1 bsl 63) - 1)).
@@ -631,8 +632,11 @@ recv_frame_await(Frame, Sock, Received, Timeout) ->
 % @end
 
 send(Socket, {Type, Payload}) ->
+    log(info, "fd_ws: send(~tp, {~tp, ~tp})", [Socket, Type, Payload]),
     BPayload = payload_to_binary(Payload),
+    log(info, "fd_ws: BPayload = ~tp", [BPayload]),
     Frame = message_to_frame(Type, BPayload),
+    log(info, "fd_ws: Frame = ~tp", [Frame]),
     send_frame(Socket, Frame).
 
 payload_to_binary(Bin) when is_binary(Bin) -> Bin;
@@ -671,6 +675,7 @@ message_to_frame(Control, Payload)
 
 send_frame(Sock, Frame) ->
     Binary = render_frame(Frame),
+    log(info, "send_frame: rendered frame: ~tp", [Binary]),
     gen_tcp:send(Sock, Binary).
 
 

src/fd_wsp.erl

@@ -3,7 +3,7 @@
 % hands the TCP socket over to this process, also this process does the
 % handshake.
 %
-% this process sends back `{ws, self(), Message: qhl_ws:ws_msg()}'
+% this process sends back `{ws, self(), Message: fd_ws:ws_msg()}'
 %
 % for each websocket message it gets
 -module(fd_wsp).
@@ -16,8 +16,8 @@
 
 -export([
     %% caller context
-    %handshake/0,
+    handshake/0,
-    start_link/3,
+    start_link/0,
 
     %% process context
     init/1, handle_call/3, handle_cast/2, handle_info/2,
@@ -27,7 +27,7 @@
 -include("http.hrl").
 -include("$zx_include/zx_logger.hrl").
 
--record(s, {socket     :: gen_tcp:socket()}).
+-record(s, {socket     :: gen_tcp:socket()})
 -type state() :: #s{}.
 
 
@@ -63,14 +63,13 @@ start_link(Socket, HandshakeReq, Received) ->
 
 init([Socket, HandshakeReq, Received]) ->
     log("~p:~p init", [?MODULE, self()]),
-    case qhl_ws:handshake(HandshakeReq) of
+    case fd_ws:handshake(HandshakeReq) of
         {ok, Response} ->
-            ok = fd_http_utils:respond(Socket, Response),
+            ok = fd_http_utils:respond(Sock, Response),
             InitState = #s{socket = Socket},
-            {ok, InitState};
         Error ->
             tell("~p:~p websocket handshake err: ~p", [?MODULE, self(), Error]),
-            fd_http_utils:http_err(Socket, 400),
+            fd_http_utils:http_err(Socket, 400)
             Error
     end.
 
@@ -86,7 +85,6 @@ handle_cast(Unexpected, State) ->
 
 
 handle_info({tcp, Sock, Bytes}, State = #s{socket = Sock}) ->
-    {noreply, State};
 handle_info(Unexpected, State) ->
     tell("~tp: unexpected info: ~tp", [?MODULE, Unexpected]),
     {noreply, State}.

src/fewd.erl

@@ -24,7 +24,7 @@
 %% Returns an {error, Reason} tuple if it is already listening.
 
 listen(PortNum) ->
-    fd_http:listen(PortNum).
+    fd_client_man:listen(PortNum).
 
 
 -spec ignore() -> ok.
@@ -32,7 +32,7 @@ listen(PortNum) ->
 %% Make the server stop listening if it is, or continue to do nothing if it isn't.
 
 ignore() ->
-    fd_http:ignore().
+    fd_client_man:ignore().
 
 
 -spec start(normal, term()) -> {ok, pid()}.