1 | /* |
1 | /* |
2 | CrossFire, A Multiplayer game for X-windows |
2 | * This file is part of Crossfire TRT, the Roguelike Realtime MORPG. |
3 | |
3 | * |
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4 | * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team |
4 | Copyright (C) 2002-2003 Mark Wedel & The Crossfire Development Team |
5 | * Copyright (©) 2002-2003,2007 Mark Wedel & The Crossfire Development Team |
5 | Copyright (C) 1992 Frank Tore Johansen |
6 | * Copyright (©) 1992,2007 Frank Tore Johansen |
6 | |
7 | * |
7 | This program is free software; you can redistribute it and/or modify |
8 | * Crossfire TRT is free software: you can redistribute it and/or modify |
8 | it under the terms of the GNU General Public License as published by |
9 | * it under the terms of the GNU General Public License as published by |
9 | the Free Software Foundation; either version 2 of the License, or |
10 | * the Free Software Foundation, either version 3 of the License, or |
10 | (at your option) any later version. |
11 | * (at your option) any later version. |
11 | |
12 | * |
12 | This program is distributed in the hope that it will be useful, |
13 | * This program is distributed in the hope that it will be useful, |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | GNU General Public License for more details. |
16 | * GNU General Public License for more details. |
16 | |
17 | * |
17 | You should have received a copy of the GNU General Public License |
18 | * You should have received a copy of the GNU General Public License |
18 | along with this program; if not, write to the Free Software |
19 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
19 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
20 | * |
20 | |
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21 | The author can be reached via e-mail to <crossfire@schmorp.de> |
21 | * The authors can be reached via e-mail to <crossfire@schmorp.de> |
22 | */ |
22 | */ |
23 | |
23 | |
24 | /** |
24 | /** |
25 | * \file |
25 | * \file |
26 | * Main client/server loops. |
26 | * Main client/server loops. |
27 | * |
27 | * |
28 | * \date 2003-12-02 |
28 | * \date 2003-12-02 |
29 | * |
29 | * |
30 | * loop.c mainly deals with initialization and higher level socket |
30 | * loop.c mainly deals with initialization and higher level socket |
31 | * maintenance (checking for lost connections and if data has arrived.) |
31 | * maintanance (checking for lost connections and if data has arrived.) |
32 | * The reading of data is handled in ericserver.c |
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33 | */ |
32 | */ |
34 | |
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35 | |
33 | |
36 | #include <global.h> |
34 | #include <global.h> |
37 | #include <sproto.h> |
35 | #include <sproto.h> |
38 | #include <sockproto.h> |
36 | #include <sockproto.h> |
39 | |
37 | |
… | |
… | |
41 | #include <sys/time.h> |
39 | #include <sys/time.h> |
42 | #include <sys/socket.h> |
40 | #include <sys/socket.h> |
43 | #include <netinet/in.h> |
41 | #include <netinet/in.h> |
44 | #include <netdb.h> |
42 | #include <netdb.h> |
45 | |
43 | |
46 | #ifdef HAVE_UNISTD_H |
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47 | # include <unistd.h> |
44 | #include <unistd.h> |
48 | #endif |
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49 | |
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50 | #ifdef HAVE_ARPA_INET_H |
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51 | # include <arpa/inet.h> |
45 | #include <arpa/inet.h> |
52 | #endif |
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53 | |
46 | |
54 | #include <loader.h> |
47 | #include <loader.h> |
55 | #include <newserver.h> |
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56 | |
48 | |
57 | /***************************************************************************** |
49 | #define BG_SCRUB_RATE 4 // how often to send a face in the background |
58 | * Start of command dispatch area. |
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59 | * The commands here are protocol commands. |
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60 | ****************************************************************************/ |
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61 | |
50 | |
62 | /* Either keep this near the start or end of the file so it is |
51 | #define MAX_QUEUE_DEPTH 500 |
63 | * at least reasonablye easy to find. |
52 | #define MAX_QUEUE_BACKLOG 3. |
64 | * There are really 2 commands - those which are sent/received |
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65 | * before player joins, and those happen after the player has joined. |
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66 | * As such, we have function types that might be called, so |
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67 | * we end up having 2 tables. |
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68 | */ |
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69 | |
53 | |
70 | typedef void (*func_uint8_int_ns) (char *, int, client_socket *); |
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71 | |
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72 | struct NsCmdMapping |
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73 | { |
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74 | const char *cmdname; |
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75 | func_uint8_int_ns cmdproc; |
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76 | uint8 flag; |
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77 | }; |
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78 | |
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79 | typedef void (*func_uint8_int_pl) (char *, int, player *); |
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80 | struct PlCmdMapping |
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81 | { |
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82 | const char *cmdname; |
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83 | func_uint8_int_pl cmdproc; |
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84 | uint8 flag; |
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85 | }; |
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86 | |
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87 | /** |
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88 | * Dispatch table for the server. |
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89 | * |
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90 | * CmdMapping is the dispatch table for the server, used in HandleClient, |
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91 | * which gets called when the client has input. All commands called here |
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92 | * use the same parameter form (char* data, int len, int clientnum. |
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93 | * We do implicit casts, because the data that is being passed is |
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94 | * unsigned (pretty much needs to be for binary data), however, most |
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95 | * of these treat it only as strings, so it makes things easier |
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96 | * to cast it here instead of a bunch of times in the function itself. |
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97 | * flag is 1 if the player must be in the playing state to issue the |
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98 | * command, 0 if they can issue it at any time. |
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99 | */ |
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100 | static struct PlCmdMapping plcommands[] = { |
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101 | {"examine", ExamineCmd, 1}, |
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102 | {"apply", ApplyCmd, 1}, |
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103 | {"move", MoveCmd, 1}, |
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104 | {"reply", ReplyCmd, 0}, |
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105 | {"command", PlayerCmd, 1}, |
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106 | {"ncom", (func_uint8_int_pl) NewPlayerCmd, 1}, |
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107 | {"lookat", LookAt, 1}, |
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108 | {"lock", (func_uint8_int_pl) LockItem, 1}, |
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109 | {"mark", (func_uint8_int_pl) MarkItem, 1}, |
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110 | {"mapredraw", MapRedrawCmd, 0}, /* Added: phil */ |
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111 | {"mapinfo", MapInfoCmd, 2}, /* CF+ */ |
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112 | {"ext", ExtCmd, 2}, /* CF+ */ |
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113 | { 0 } /* terminator */ |
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114 | }; |
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115 | |
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116 | /** Face-related commands */ |
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117 | static struct NsCmdMapping nscommands[] = { |
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118 | {"addme", AddMeCmd, 2}, |
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119 | {"askface", SendFaceCmd}, /* Added: phil */ |
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120 | {"requestinfo", RequestInfo}, |
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121 | {"setfacemode", SetFaceMode, 2}, |
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122 | {"setsound", SetSound, 2}, |
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123 | {"setup", SetUp, 2}, |
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124 | {"version", VersionCmd, 2}, |
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125 | {"toggleextendedinfos", ToggleExtendedInfos, 2}, /*Added: tchize */ |
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126 | {"toggleextendedtext", ToggleExtendedText, 2}, /*Added: tchize */ |
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127 | {"asksmooth", AskSmooth}, /*Added: tchize (smoothing technologies) */ |
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128 | { 0 } /* terminator (I, II & III) */ |
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129 | }; |
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130 | |
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131 | /** |
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132 | * RequestInfo is sort of a meta command. There is some specific |
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133 | * request of information, but we call other functions to provide |
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134 | * that information. |
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135 | */ |
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136 | void |
54 | void |
137 | RequestInfo (char *buf, int len, client_socket * ns) |
55 | client::reset_state () |
138 | { |
56 | { |
139 | char *params = NULL, *cp; |
57 | if (!pl) |
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58 | return; |
140 | |
59 | |
141 | /* No match */ |
60 | pl->run_on = 0; |
142 | char bigbuf[MAX_BUF]; |
61 | pl->fire_on = 0; |
143 | int slen; |
62 | } |
144 | |
63 | |
145 | /* Set up replyinfo before we modify any of the buffers - this is used |
64 | void |
146 | * if we don't find a match. |
65 | client::queue_command (packet_type *handler, char *data, int datalen) |
147 | */ |
66 | { |
148 | strcpy (bigbuf, "replyinfo "); |
67 | tstamp stamp = NOW; |
149 | slen = strlen (bigbuf); |
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150 | safe_strcat (bigbuf, buf, &slen, MAX_BUF); |
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151 | |
68 | |
152 | /* find the first space, make it null, and update the |
69 | if (cmd_queue.size () >= MAX_QUEUE_DEPTH) |
153 | * params pointer. |
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154 | */ |
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155 | for (cp = buf; *cp != '\0'; cp++) |
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156 | if (*cp == ' ') |
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157 | { |
70 | { |
158 | *cp = '\0'; |
71 | //TODO: just disconnect here? |
159 | params = cp + 1; |
72 | reset_state (); |
160 | break; |
73 | send_packet_printf ("drawinfo %d command queue overflow, ignoring.", NDI_RED); |
161 | } |
74 | } |
162 | |
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163 | if (!strcmp (buf, "image_info")) |
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164 | send_image_info (ns, params); |
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165 | else if (!strcmp (buf, "image_sums")) |
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166 | send_image_sums (ns, params); |
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167 | else if (!strcmp (buf, "skill_info")) |
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168 | send_skill_info (ns, params); |
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169 | else if (!strcmp (buf, "spell_paths")) |
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170 | send_spell_paths (ns, params); |
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171 | else |
75 | else |
172 | ns->send_packet (bigbuf, len); |
76 | { |
173 | } |
77 | cmd_queue.push_back (command ()); |
174 | |
78 | command &cmd = cmd_queue.back (); |
175 | /** |
79 | cmd.stamp = stamp; |
176 | * Handle client input. |
80 | cmd.handler = handler; |
177 | * |
81 | cmd.data = salloc<char> (datalen + 1, data); |
178 | * HandleClient is actually not named really well - we only get here once |
82 | cmd.datalen = datalen; |
179 | * there is input, so we don't do exception or other stuff here. |
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180 | * sock is the output socket information. pl is the player associated |
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181 | * with this socket, null if no player (one of the init_sockets for just |
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182 | * starting a connection) |
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183 | */ |
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184 | |
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185 | void |
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186 | HandleClient (client_socket *ns, player *pl) |
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187 | { |
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188 | /* Loop through this - maybe we have several complete packets here. */ |
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189 | // limit to a few commands only, though, as to not monopolise the server |
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190 | for (int repeat = 16; repeat--;) |
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191 | { |
83 | } |
192 | /* If it is a player, and they don't have any speed left, we |
84 | } |
193 | * return, and will read in the data when they do have time. |
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194 | */ |
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195 | if (pl && pl->state == ST_PLAYING && pl->ob && pl->ob->speed_left < 0) |
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196 | return; |
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197 | |
85 | |
198 | int pkt_len = ns->read_packet (); |
86 | bool |
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87 | client::handle_command () |
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88 | { |
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89 | if (!cmd_queue.empty () |
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90 | && state == ST_PLAYING |
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91 | && pl->ob->speed_left > 0.f) |
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92 | { |
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93 | command &cmd = cmd_queue.front (); |
199 | |
94 | |
200 | if (pkt_len < 0) |
95 | if (cmd.stamp + MAX_QUEUE_BACKLOG < NOW) |
201 | { |
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202 | LOG (llevError, "read error on player %s\n", &pl->ob->name); |
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203 | /* Caller will take care of cleaning this up */ |
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204 | ns->status = Ns_Dead; |
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205 | return; |
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206 | } |
96 | { |
207 | else if (pkt_len == 0) |
97 | reset_state (); |
208 | /* Still dont have a full packet */ |
98 | send_packet_printf ("drawinfo %d ignoring delayed commands.", NDI_RED); |
209 | return; |
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210 | |
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211 | /* First, break out beginning word. There are at least |
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212 | * a few commands that do not have any paremeters. If |
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213 | * we get such a command, don't worry about trying |
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214 | * to break it up. |
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215 | */ |
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216 | int datalen; |
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217 | char *data = strchr ((char *)ns->inbuf + 2, ' '); |
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218 | |
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219 | if (data) |
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220 | { |
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221 | *data++ = 0; |
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222 | datalen = pkt_len - (data - (char *)ns->inbuf); |
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223 | } |
99 | } |
224 | else |
100 | else |
225 | { |
101 | execute (cmd.handler, cmd.data, cmd.datalen); |
226 | data = (char *)ns->inbuf + 2; // better read garbage than segfault |
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227 | datalen = 0; |
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228 | } |
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229 | |
102 | |
230 | ns->inbuf [pkt_len] = 0; /* Terminate buffer - useful for string data */ |
103 | cmd_queue.pop_front (); |
231 | |
104 | return true; |
232 | for (int i = 0; nscommands[i].cmdname; i++) |
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233 | { |
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234 | if (!strcmp ((char *)ns->inbuf + 2, nscommands[i].cmdname)) |
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235 | { |
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236 | nscommands[i].cmdproc (data, datalen, ns); |
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237 | ns->skip_packet (pkt_len); |
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238 | //D// not doing this causes random memory corruption |
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239 | if (nscommands[i].flag & 2) |
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240 | goto next_packet; |
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241 | return; |
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242 | } |
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243 | } |
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244 | |
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245 | /* Player must be in the playing state or the flag on the |
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246 | * the command must be zero for the user to use the command - |
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247 | * otherwise, a player cam save, be in the play_again state, and |
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248 | * the map they were on gets swapped out, yet things that try to look |
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249 | * at the map causes a crash. If the command is valid, but |
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250 | * one they can't use, we still swallow it up. |
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251 | */ |
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252 | if (pl) |
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253 | for (int i = 0; plcommands[i].cmdname; i++) |
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254 | { |
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255 | if (!strcmp ((char *)ns->inbuf + 2, plcommands[i].cmdname)) |
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256 | { |
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257 | if (pl->state == ST_PLAYING || !(plcommands[i].flag & 1)) |
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258 | plcommands[i].cmdproc ((char *) data, datalen, pl); |
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259 | |
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260 | ns->skip_packet (pkt_len); |
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261 | //D// not doing this causes random memory corruption |
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262 | if (plcommands[i].flag & 2) |
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263 | goto next_packet; |
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264 | |
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265 | return; |
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266 | } |
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267 | } |
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268 | |
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269 | /* If we get here, we didn't find a valid command. Logging |
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270 | * this might be questionable, because a broken client/malicious |
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271 | * user could certainly send a whole bunch of invalid commands. |
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272 | */ |
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273 | LOG (llevDebug, "Bad command from client (%s)\n", ns->inbuf + 2); |
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274 | ns->skip_packet (pkt_len); |
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275 | next_packet: |
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276 | ; |
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277 | } |
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278 | } |
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279 | |
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280 | |
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281 | /***************************************************************************** |
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282 | * |
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283 | * Low level socket looping - select calls and watchdog udp packet |
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284 | * sending. |
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285 | * |
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286 | ******************************************************************************/ |
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287 | |
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288 | #ifdef WATCHDOG |
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289 | |
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290 | /** |
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291 | * Tell watchdog that we are still alive |
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292 | * |
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293 | * I put the function here since we should hopefully already be getting |
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294 | * all the needed include files for socket support |
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295 | */ |
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296 | |
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297 | void |
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298 | watchdog (void) |
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299 | { |
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300 | static int fd = -1; |
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301 | static struct sockaddr_in insock; |
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302 | |
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303 | if (fd == -1) |
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304 | { |
105 | } |
305 | struct protoent *protoent; |
106 | else |
306 | |
107 | return false; |
307 | if ((protoent = getprotobyname ("udp")) == NULL || (fd = socket (PF_INET, SOCK_DGRAM, protoent->p_proto)) == -1) |
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308 | { |
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309 | return; |
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310 | } |
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311 | insock.sin_family = AF_INET; |
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312 | insock.sin_port = htons ((unsigned short) 13325); |
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313 | insock.sin_addr.s_addr = inet_addr ("127.0.0.1"); |
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314 | } |
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315 | sendto (fd, (void *) &fd, 1, 0, (struct sockaddr *) &insock, sizeof (insock)); |
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316 | } |
108 | } |
317 | #endif |
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318 | |
109 | |
319 | void |
110 | void |
320 | flush_sockets (void) |
111 | flush_sockets (void) |
321 | { |
112 | { |
322 | player *pl; |
113 | for (sockvec::iterator i = clients.begin (); i != clients.end (); ++i) |
323 | |
114 | (*i)->flush (); |
324 | for (pl = first_player; pl != NULL; pl = pl->next) |
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325 | if (pl->socket->status != Ns_Dead) |
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326 | Socket_Flush (pl->socket); |
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327 | } |
115 | } |
328 | |
116 | |
329 | /** |
117 | /** |
330 | * This checks the sockets for input, does the right thing. |
118 | * This checks the sockets for input, does the right thing. |
331 | * |
119 | * |
… | |
… | |
334 | * |
122 | * |
335 | */ |
123 | */ |
336 | void |
124 | void |
337 | doeric_server (void) |
125 | doeric_server (void) |
338 | { |
126 | { |
339 | int i, pollret; |
127 | //TODO: should not be done here, either |
340 | fd_set tmp_read, tmp_write; |
128 | for (unsigned i = 0; i < clients.size (); ++i) |
341 | struct sockaddr_in addr; |
129 | { |
342 | socklen_t addrlen = sizeof (struct sockaddr); |
130 | client *ns = clients [i]; |
343 | player *pl, *next; |
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344 | int maxfd = 0; |
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345 | |
131 | |
346 | #ifdef CS_LOGSTATS |
132 | ns->tick (); |
347 | if ((time (NULL) - cst_lst.time_start) >= CS_LOGTIME) |
133 | ns->refcnt_chk (); |
348 | write_cs_stats (); |
134 | } |
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135 | } |
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136 | |
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137 | void |
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138 | client::tick () |
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139 | { |
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140 | if (!pl || destroyed ()) |
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141 | return; |
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142 | |
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143 | /* Update the players stats once per tick. More efficient than |
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144 | * sending them whenever they change, and probably just as useful |
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145 | */ |
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146 | esrv_update_stats (pl); |
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147 | |
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148 | if (last_weight != -1 && last_weight != WEIGHT (pl->ob)) |
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149 | { |
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150 | esrv_update_item (UPD_WEIGHT, pl->ob, pl->ob); |
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151 | if (last_weight != WEIGHT (pl->ob)) |
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152 | LOG (llevError, "esrv_update_item(UPD_WEIGHT) did not set player weight: is %lu, should be %lu\n", |
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153 | (unsigned long) last_weight, WEIGHT (pl->ob)); |
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154 | } |
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155 | |
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156 | draw_client_map (pl); |
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157 | |
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158 | if (update_look) |
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159 | esrv_draw_look (pl); |
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160 | |
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161 | bool overload = false; |
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162 | |
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163 | #if HAVE_TCP_INFO |
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164 | // do bandwidth checking |
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165 | if (tcpi.tcpi_unacked + 1 > max (4, tcpi.tcpi_snd_cwnd)) |
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166 | { |
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167 | overload = true; |
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168 | if (next_rate_adjust <= NOW) |
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169 | { |
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170 | next_rate_adjust = NOW + 2; |
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171 | max_rate = max (max_rate >> 1, int (5000 * TICK)); |
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172 | LOG (llevDebug, "tcp %s overloaded (%d + 1 > 4 | %d), rate now %d\n", |
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173 | host, (int)tcpi.tcpi_unacked, (int)tcpi.tcpi_snd_cwnd, int (max_rate / TICK));//D |
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174 | send_packet_printf ("drawinfo %d Due to possible network congestion, your output-rate has been reduced to %dbps.", |
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175 | NDI_RED, int (max_rate / TICK)); |
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176 | } |
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177 | } |
349 | #endif |
178 | #endif |
350 | |
179 | |
351 | /* Go through the players. Let the loop set the next pl value, |
180 | if (!overload) |
352 | * since we may remove some |
|
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353 | */ |
|
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354 | //TODO: must be handled cleanly elsewhere |
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355 | for (pl = first_player; pl; ) |
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356 | { |
181 | { |
357 | player *npl = pl->next; |
182 | if (ixface.empty ()) |
|
|
183 | { |
|
|
184 | // regularly send a new face when queue is empty |
|
|
185 | if (bg_scrub && !--bg_scrub && enable_bg_scrub) |
|
|
186 | while (scrub_idx < faces.size () - 1) |
|
|
187 | { |
|
|
188 | ++scrub_idx; |
358 | |
189 | |
359 | //TODO: must be handled cleanly elsewhere |
190 | if (!faces_sent [scrub_idx]) |
360 | if (pl->socket->status == Ns_Dead) |
191 | if (faceinfo *f = face_info (scrub_idx)) |
|
|
192 | if (f->type == FT_FACE) // only scrub faces for now |
|
|
193 | { |
|
|
194 | send_face (scrub_idx, -120); |
|
|
195 | flush_fx (); |
|
|
196 | |
|
|
197 | bg_scrub = 1; // send up to one face per tick, unless an image was requested |
|
|
198 | break; |
|
|
199 | } |
|
|
200 | } |
|
|
201 | |
|
|
202 | rate_avail = max_rate - outputbuffer_len (); |
361 | { |
203 | } |
362 | save_player (pl->ob, 0); |
204 | else |
|
|
205 | { |
|
|
206 | int ol = outputbuffer_len (); |
363 | |
207 | |
364 | if (!QUERY_FLAG (pl->ob, FLAG_REMOVED)) |
208 | rate_avail = min (max_rate, rate_avail + max_rate); |
|
|
209 | rate_avail -= ol; |
|
|
210 | |
|
|
211 | int avail = rate_avail; |
|
|
212 | |
|
|
213 | // if we can split images, transfer up to mss-sized packets if possible |
|
|
214 | // but never 768 bytes more. |
|
|
215 | if (fxix) avail += min (768, mss - (ol % mss)); |
|
|
216 | |
|
|
217 | bg_scrub = BG_SCRUB_RATE; |
|
|
218 | |
|
|
219 | while (avail > 0) |
365 | { |
220 | { |
366 | terminate_all_pets (pl->ob); |
221 | ixsend &ix = ixface.back (); |
367 | pl->ob->remove (); |
222 | |
|
|
223 | if (facedata *d = face_data (ix.idx, faceset)) |
|
|
224 | { |
|
|
225 | if (fxix) |
|
|
226 | { |
|
|
227 | // only transfer something if the amount of data transferred |
|
|
228 | // has a healthy relation to the header overhead |
|
|
229 | if (avail <= 40) |
|
|
230 | break; |
|
|
231 | |
|
|
232 | // 9 bytes is enough for fx_FFFOOO |
|
|
233 | int chunk = min (min (avail, MAXSOCKBUF - 9), (int)ix.ofs); |
|
|
234 | |
|
|
235 | if (chunk <= 0) |
|
|
236 | break; |
|
|
237 | |
|
|
238 | ix.ofs -= chunk; |
|
|
239 | |
|
|
240 | //fprintf (stderr, "i%dx %6d: %5d+%4d (%4d)\n", fxix, ix.idx,ix.ofs,chunk, ixface.size());//D |
|
|
241 | |
|
|
242 | packet sl ("ix"); |
|
|
243 | |
|
|
244 | sl << ber32 (ix.idx) |
|
|
245 | << ber32 (ix.ofs) |
|
|
246 | << data (d->data.data () + ix.ofs, chunk); |
|
|
247 | |
|
|
248 | send_packet (sl); |
|
|
249 | } |
|
|
250 | else |
|
|
251 | { |
|
|
252 | send_image (ix.idx); |
|
|
253 | ix.ofs = 0; |
|
|
254 | } |
|
|
255 | } |
|
|
256 | else |
|
|
257 | ix.ofs = 0; |
|
|
258 | |
|
|
259 | int consumed = outputbuffer_len () - ol; |
|
|
260 | |
|
|
261 | avail -= consumed; |
|
|
262 | rate_avail -= consumed; |
|
|
263 | |
|
|
264 | ol = outputbuffer_len (); |
|
|
265 | |
|
|
266 | if (!ix.ofs) |
|
|
267 | { |
|
|
268 | ixface.pop_back (); |
|
|
269 | |
|
|
270 | if (ixface.empty ()) |
|
|
271 | break; |
|
|
272 | } |
368 | } |
273 | } |
369 | |
|
|
370 | leave (pl, 1); |
|
|
371 | final_free_player (pl); |
|
|
372 | } |
|
|
373 | |
|
|
374 | pl = npl; |
|
|
375 | } |
|
|
376 | |
|
|
377 | FD_ZERO (&tmp_read); |
|
|
378 | FD_ZERO (&tmp_write); |
|
|
379 | |
|
|
380 | for (sockvec::iterator i = client_sockets.begin (); i != client_sockets.end (); ) |
|
|
381 | { |
|
|
382 | client_socket *s = *i; |
|
|
383 | |
|
|
384 | if (s->status == Ns_Dead) |
|
|
385 | { |
274 | } |
386 | client_sockets.erase (i); |
|
|
387 | delete s; |
|
|
388 | } |
|
|
389 | else |
|
|
390 | { |
|
|
391 | if (s->fd > maxfd) maxfd = s->fd; |
|
|
392 | |
|
|
393 | FD_SET (s->fd, &tmp_read); |
|
|
394 | |
|
|
395 | if (s->outputbuffer.len) |
|
|
396 | FD_SET (s->fd, &tmp_write); |
|
|
397 | |
|
|
398 | ++i; |
|
|
399 | } |
|
|
400 | } |
|
|
401 | |
|
|
402 | struct timeval timeout; |
|
|
403 | |
|
|
404 | timeout.tv_sec = 0; |
|
|
405 | timeout.tv_usec = 0; |
|
|
406 | |
|
|
407 | pollret = select (maxfd + 1, |
|
|
408 | &tmp_read, &tmp_write, 0, |
|
|
409 | &timeout); |
|
|
410 | |
|
|
411 | if (pollret == -1) |
|
|
412 | { |
275 | } |
413 | LOG (llevError, "select failed: %s\n", strerror (errno)); |
|
|
414 | return; |
|
|
415 | } |
|
|
416 | |
|
|
417 | /* We need to do some of the processing below regardless */ |
|
|
418 | |
|
|
419 | /* Check for any input on the sockets */ |
|
|
420 | for (sockvec::iterator i = client_sockets.begin (); i != client_sockets.end (); ++i) |
|
|
421 | { |
|
|
422 | client_socket *s = *i; |
|
|
423 | player *pl = s->pl; |
|
|
424 | |
|
|
425 | //TODO: writing should be independent of tick |
|
|
426 | if (FD_ISSET (s->fd, &tmp_write)) |
|
|
427 | { |
|
|
428 | s->can_write = 1; |
|
|
429 | write_socket_buffer (s); |
|
|
430 | } |
|
|
431 | |
|
|
432 | //TODO: disassociate handleclient from socket readin |
|
|
433 | if (s->inbuf_len || FD_ISSET (s->fd, &tmp_read)) |
|
|
434 | HandleClient (s, pl); |
|
|
435 | |
|
|
436 | //TODO: should not be done here, either |
|
|
437 | if (s->status != Ns_Dead && pl) |
|
|
438 | { |
|
|
439 | /* Update the players stats once per tick. More efficient than |
|
|
440 | * sending them whenever they change, and probably just as useful |
|
|
441 | */ |
|
|
442 | esrv_update_stats (pl); |
|
|
443 | if (pl->last_weight != -1 && pl->last_weight != WEIGHT (pl->ob)) |
|
|
444 | { |
|
|
445 | esrv_update_item (UPD_WEIGHT, pl->ob, pl->ob); |
|
|
446 | if (pl->last_weight != WEIGHT (pl->ob)) |
|
|
447 | LOG (llevError, "esrv_update_item(UPD_WEIGHT) did not set player weight: is %lu, should be %lu\n", |
|
|
448 | (unsigned long) pl->last_weight, WEIGHT (pl->ob)); |
|
|
449 | } |
|
|
450 | |
|
|
451 | /* draw_client_map does sanity checking that map is |
|
|
452 | * valid, so don't do it here. |
|
|
453 | */ |
|
|
454 | draw_client_map (pl->ob); |
|
|
455 | if (s->update_look) |
|
|
456 | esrv_draw_look (pl->ob); |
|
|
457 | } |
|
|
458 | } |
|
|
459 | } |
276 | } |
460 | |
277 | |