hedgewars/uFLNet.pas
author unc0rr
Wed, 18 Nov 2015 22:18:39 +0300
branchqmlfrontend
changeset 11418 ffff8a0d1a76
parent 11408 b894922d58cc
child 11420 05cf35103206
permissions -rw-r--r--
Implement processing net commands in the main thread
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unit uFLNet;
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interface
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procedure connectOfficialServer;
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procedure initModule;
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procedure freeModule;
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procedure sendNet(s: shortstring);
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implementation
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uses SDLh, uFLIPC, uFLTypes, uFLUICallback, uFLNetTypes, uFLUtils;
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const endCmd: string = #10 + #10;
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function getNextChar: char; forward;
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function getCurrChar: char; forward;
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type
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    TNetState = (netDisconnected, netConnecting, netLoggedIn);
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    TParserState = record
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                       cmd: TCmdType;
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                       l: LongInt;
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                       netState: TNetState;
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                       buf: shortstring;
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                       bufpos: byte;
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                   end;
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    PHandler = procedure;
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var state: TParserState;
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procedure handleTail; forward;
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function getShortString: shortstring; forward;
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// generated stuff here
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const letters: array[0..211] of char = ('A', 'S', 'K', 'P', 'A', 'S', 'S', 'W',
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    'O', 'R', 'D', #10, 'B', 'A', 'N', 'L', 'I', 'S', 'T', #10, 'Y', 'E', #10, 'C',
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    'H', 'A', 'T', #10, 'L', 'I', 'E', 'N', 'T', '_', 'F', 'L', 'A', 'G', 'S', #10,
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    'O', 'N', 'N', 'E', 'C', 'T', 'E', 'D', #10, 'E', 'M', #10, 'R', 'R', 'O', 'R',
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    #10, 'H', 'H', '_', 'N', 'U', 'M', #10, 'I', 'N', 'F', 'O', #10, 'J', 'O', 'I',
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    'N', 'E', 'D', #10, 'I', 'N', 'G', #10, 'K', 'I', 'C', 'K', 'E', 'D', #10, 'L',
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    'E', 'F', 'T', #10, 'O', 'B', 'B', 'Y', ':', 'J', 'O', 'I', 'N', 'E', 'D', #10,
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    'L', 'E', 'F', 'T', #10, 'N', 'I', 'C', 'K', #10, 'O', 'T', 'I', 'C', 'E', #10,
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    'P', 'I', 'N', 'G', #10, 'R', 'O', 'T', 'O', #10, 'R', 'O', 'O', 'M', 'S', #10,
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    'U', 'N', 'D', '_', 'F', 'I', 'N', 'I', 'S', 'H', 'E', 'D', #10, 'U', 'N', '_',
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    'G', 'A', 'M', 'E', #10, 'S', 'E', 'R', 'V', 'E', 'R', '_', 'A', 'U', 'T', 'H',
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    #10, 'M', 'E', 'S', 'S', 'A', 'G', 'E', #10, 'V', 'A', 'R', 'S', #10, 'T', 'E',
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    'A', 'M', '_', 'A', 'C', 'C', 'E', 'P', 'T', 'E', 'D', #10, 'C', 'O', 'L', 'O',
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    'R', #10, 'W', 'A', 'R', 'N', 'I', 'N', 'G', #10, #0, #10);
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const commands: array[0..211] of integer = (12, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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    -39, 11, 7, 0, 0, 0, 0, 0, -38, 0, 0, -37, 26, 4, 0, 0, -36, 12, 0, 0, 0, 0, 0,
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    0, 0, 0, 0, 0, -35, 0, 0, 0, 0, 0, 0, 0, 0, -34, 8, 2, -33, 0, 0, 0, 0, -32, 7,
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    0, 0, 0, 0, 0, -31, 5, 0, 0, 0, -30, 11, 0, 0, 0, 3, 0, -29, 0, 0, 0, -28, 7, 0,
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    0, 0, 0, 0, -27, 22, 4, 0, 0, -26, 0, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, -25, 0, 0,
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    0, 0, -24, 11, 4, 0, 0, -23, 0, 0, 0, 0, 0, -22, 10, 4, 0, 0, -21, 0, 0, 0, 0,
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    -20, 27, 18, 4, 0, 0, -19, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -18, 0, 0, 0, 0,
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    0, 0, 0, -17, 25, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, -16, 8, 0, 0, 0, 0, 0, 0, -15,
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    0, 0, 0, 0, -14, 20, 0, 0, 0, 0, 9, 0, 0, 0, 0, 0, 0, 0, -13, 0, 0, 0, 0, 0,
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    -12, 8, 0, 0, 0, 0, 0, 0, -11, 0, -10);
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procedure handler_;
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begin
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    sendUI(mtNetData, @state.cmd, sizeof(state.cmd));
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    writeln('handler_');
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    handleTail()
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end;
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procedure handler_L;
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begin
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    writeln('handler_L');
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    handleTail()
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end;
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procedure handler_ML;
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begin
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    writeln('handler_ML');
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    handleTail()
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end;
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procedure handler_MS;
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var cmd: TCmdParamS;
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    f: boolean;
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begin
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    sendUI(mtNetData, @state.cmd, sizeof(state.cmd));
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    writeln('handler_MS');
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    cmd.cmd:= Succ(state.cmd);
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    repeat
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        cmd.str1:= getShortString;
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        f:= cmd.str1[0] <> #0;
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        if f then
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            sendUI(mtNetData, @cmd, sizeof(cmd));
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    until not f
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end;
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procedure handler_S;
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begin
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    writeln('handler_S');
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    handleTail()
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end;
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procedure handler_SL;
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begin
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    writeln('handler_SL');
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    handleTail()
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end;
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procedure handler_SMS;
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begin
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    writeln('handler_SMS');
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    handleTail()
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end;
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procedure handler__i;
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var cmd: TCmdParami;
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begin
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    writeln('handler__i');
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    getShortString;
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    cmd.cmd:= state.cmd;
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    cmd.param1:= strToInt(getShortString);
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    sendUI(mtNetData, @cmd, sizeof(cmd));
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    handleTail()
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end;
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procedure handler_i;
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begin
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    writeln('handler_i');
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    handleTail()
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end;
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procedure handler__UNKNOWN_;
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begin
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    writeln('[NET] Unknown cmd');
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end;
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const handlers: array[0..29] of PHandler = (@handler__UNKNOWN_, @handler_L, @handler_MS, @handler_S,
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    @handler_SL, @handler_L, @handler_S, @handler_, @handler_, @handler_MS,
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    @handler_i, @handler_MS, @handler_L, @handler_S, @handler_SL, @handler_MS,
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    @handler_SMS, @handler_, @handler_S, @handler_MS, @handler_MS, @handler_MS,
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    @handler_L, @handler_ML, @handler__i, @handler_SMS, @handler_SL, @handler_SL,
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    @handler_MS, @handler_S);
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const net2cmd: array[0..29] of TCmdType = (cmd_WARNING, cmd_WARNING,
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    cmd_TEAM_COLOR, cmd_TEAM_ACCEPTED, cmd_SERVER_VARS, cmd_SERVER_MESSAGE,
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    cmd_SERVER_AUTH, cmd_RUN_GAME, cmd_ROUND_FINISHED, cmd_ROOMS, cmd_PROTO,
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    cmd_PING, cmd_NOTICE, cmd_NICK, cmd_LOBBY_LEFT, cmd_LOBBY_JOINED, cmd_LEFT,
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    cmd_KICKED, cmd_JOINING, cmd_JOINED, cmd_INFO, cmd_HH_NUM, cmd_ERROR, cmd_EM,
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    cmd_CONNECTED, cmd_CLIENT_FLAGS, cmd_CHAT, cmd_BYE, cmd_BANLIST,
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    cmd_ASKPASSWORD);
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// end of generated stuff
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procedure handleTail;
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var cnt: Longint;
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    c: char;
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begin
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    state.l:= 0;
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    c:= getCurrChar;
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    repeat
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        if c = #10 then cnt:= 0 else cnt:= 1;
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        repeat
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            c:= getNextChar;
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            inc(cnt)
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        until (c = #0) or (c = #10);
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    until (c = #0) or (cnt = 1)
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end;
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var sock: PTCPSocket;
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    netReaderThread: PSDL_Thread;
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function getCurrChar: char;
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begin
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    getCurrChar:= state.buf[state.bufpos]
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end;
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function getNextChar: char;
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var r: byte;
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begin
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    if state.bufpos < byte(state.buf[0]) then
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    begin
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        inc(state.bufpos);
10900
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   181
    end else
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   182
    begin
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        r:= SDLNet_TCP_Recv(sock, @state.buf[1], 255);
10900
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   184
        if r > 0 then
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        begin
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   186
            state.bufpos:= 1;
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            state.buf[0]:= char(r);
10900
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   188
        end else
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        begin
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            state.bufpos:= 0;
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   191
            state.buf[0]:= #0;
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        end
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    end;
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    getNextChar:= state.buf[state.bufpos];
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end;
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   197
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function netWriter(sock: PTCPSocket): LongInt; cdecl; export;
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begin
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   200
    netWriter:= 0;
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   201
end;
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function netReader(data: pointer): LongInt; cdecl; export;
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var c: char;
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    ipaddr: TIPAddress;
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begin
10933
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    netReader:= 0;
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   208
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    if SDLNet_ResolveHost(ipaddr, PChar('netserver.hedgewars.org'), 46631) = 0 then
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        sock:= SDLNet_TCP_Open(ipaddr);
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    SDL_CreateThread(@netWriter, 'netWriter', sock);
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    repeat
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        c:= getNextChar;
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        //writeln('>>>>> ', c, ' [', letters[state.l], '] ', commands[state.l]);
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   217
        if c = #0 then
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   218
            state.netState:= netDisconnected
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        else
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        begin
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   221
            while (letters[state.l] <> c) and (commands[state.l] > 0) do
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   222
                inc(state.l, commands[state.l]);
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diff changeset
   223
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   224
            if c = letters[state.l] then
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   225
                if commands[state.l] < 0 then
10931
384765cd0caf Parse net commands, answer to pings
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   226
                begin
11418
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                    state.cmd:= net2cmd[-10 - commands[state.l]];
10933
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                    writeln('[NET] ', state.cmd);
10931
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   229
                    handlers[-10 - commands[state.l]]();
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diff changeset
   230
                end
10933
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diff changeset
   231
                else
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   232
                    inc(state.l)
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384765cd0caf Parse net commands, answer to pings
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   233
            else
10933
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diff changeset
   234
            begin
11418
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   235
                handler__UNKNOWN_();
10933
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   236
                handleTail()
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   237
            end
10931
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   238
        end
10933
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   239
    until state.netState = netDisconnected;
10931
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   240
10933
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    sock:= nil;
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   242
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   243
    writeln('[NET] netReader: disconnected');
10931
384765cd0caf Parse net commands, answer to pings
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   244
end;
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   245
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   246
procedure sendNet(s: shortstring);
384765cd0caf Parse net commands, answer to pings
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   247
begin
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   248
    writeln('[NET] Send: ', s);
10935
3a65fcd7c335 Move SDLNet_TCP_Send to its own thread
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diff changeset
   249
    ipcToNet(s + endCmd);
3a65fcd7c335 Move SDLNet_TCP_Send to its own thread
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diff changeset
   250
end;
3a65fcd7c335 Move SDLNet_TCP_Send to its own thread
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diff changeset
   251
11418
ffff8a0d1a76 Implement processing net commands in the main thread
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   252
function getShortString: shortstring;
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diff changeset
   253
var s: shortstring;
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diff changeset
   254
    c: char;
ffff8a0d1a76 Implement processing net commands in the main thread
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diff changeset
   255
begin
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diff changeset
   256
    s[0]:= #0;
ffff8a0d1a76 Implement processing net commands in the main thread
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diff changeset
   257
ffff8a0d1a76 Implement processing net commands in the main thread
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diff changeset
   258
    repeat
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diff changeset
   259
        inc(s[0]);
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   260
        s[byte(s[0])]:= getNextChar
ffff8a0d1a76 Implement processing net commands in the main thread
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   261
    until (s[0] = #255) or (s[byte(s[0])] = #10) or (s[byte(s[0])] = #0);
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diff changeset
   262
ffff8a0d1a76 Implement processing net commands in the main thread
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diff changeset
   263
    if s[byte(s[0])] = #10 then
ffff8a0d1a76 Implement processing net commands in the main thread
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diff changeset
   264
        dec(s[0])
ffff8a0d1a76 Implement processing net commands in the main thread
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diff changeset
   265
    else
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   266
        repeat c:= getNextChar until (c = #0) or (c = #10);
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diff changeset
   267
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   268
    getShortString:= s
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   269
end;
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   270
10935
3a65fcd7c335 Move SDLNet_TCP_Send to its own thread
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   271
procedure netSendCallback(p: pointer; msg: PChar; len: Longword);
3a65fcd7c335 Move SDLNet_TCP_Send to its own thread
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diff changeset
   272
begin
3a65fcd7c335 Move SDLNet_TCP_Send to its own thread
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   273
    // W A R N I N G: totally thread-unsafe due to use of sock variable
3a65fcd7c335 Move SDLNet_TCP_Send to its own thread
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   274
    SDLNet_TCP_Send(sock, msg, len);
10898
f373838129c2 Some futher work on flib net client part
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   275
end;
10896
5a74923120d5 Start network support: only setting up a connection for now
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   276
5a74923120d5 Start network support: only setting up a connection for now
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diff changeset
   277
procedure connectOfficialServer;
5a74923120d5 Start network support: only setting up a connection for now
unc0rr
parents:
diff changeset
   278
begin
10898
f373838129c2 Some futher work on flib net client part
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diff changeset
   279
    if sock <> nil then
10896
5a74923120d5 Start network support: only setting up a connection for now
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   280
        exit;
5a74923120d5 Start network support: only setting up a connection for now
unc0rr
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diff changeset
   281
10931
384765cd0caf Parse net commands, answer to pings
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   282
    state.bufpos:= 0;
384765cd0caf Parse net commands, answer to pings
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diff changeset
   283
    state.buf:= '';
384765cd0caf Parse net commands, answer to pings
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diff changeset
   284
384765cd0caf Parse net commands, answer to pings
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diff changeset
   285
    state.l:= 0;
384765cd0caf Parse net commands, answer to pings
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diff changeset
   286
    state.netState:= netConnecting;
384765cd0caf Parse net commands, answer to pings
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diff changeset
   287
11408
b894922d58cc Merge default (add a bunch of FIXMEs)
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   288
    netReaderThread:= SDL_CreateThread(@netReader, 'netReader', nil);
10896
5a74923120d5 Start network support: only setting up a connection for now
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diff changeset
   289
end;
5a74923120d5 Start network support: only setting up a connection for now
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diff changeset
   290
5a74923120d5 Start network support: only setting up a connection for now
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diff changeset
   291
procedure initModule;
5a74923120d5 Start network support: only setting up a connection for now
unc0rr
parents:
diff changeset
   292
begin
5a74923120d5 Start network support: only setting up a connection for now
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   293
    sock:= nil;
5a74923120d5 Start network support: only setting up a connection for now
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diff changeset
   294
5a74923120d5 Start network support: only setting up a connection for now
unc0rr
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diff changeset
   295
    SDLNet_Init;
10935
3a65fcd7c335 Move SDLNet_TCP_Send to its own thread
unc0rr
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diff changeset
   296
3a65fcd7c335 Move SDLNet_TCP_Send to its own thread
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   297
    registerNetCallback(nil, @netSendCallback);
10896
5a74923120d5 Start network support: only setting up a connection for now
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diff changeset
   298
end;
5a74923120d5 Start network support: only setting up a connection for now
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diff changeset
   299
5a74923120d5 Start network support: only setting up a connection for now
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diff changeset
   300
procedure freeModule;
5a74923120d5 Start network support: only setting up a connection for now
unc0rr
parents:
diff changeset
   301
begin
5a74923120d5 Start network support: only setting up a connection for now
unc0rr
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diff changeset
   302
end;
5a74923120d5 Start network support: only setting up a connection for now
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diff changeset
   303
5a74923120d5 Start network support: only setting up a connection for now
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diff changeset
   304
end.