1 | /* |
1 | /* |
2 | CrossFire, A Multiplayer game for X-windows |
2 | CrossFire, A Multiplayer game for X-windows |
3 | |
3 | |
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4 | Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team |
4 | Copyright (C) 2002-2003 Mark Wedel & The Crossfire Development Team |
5 | Copyright (C) 2002-2003 Mark Wedel & The Crossfire Development Team |
5 | Copyright (C) 1992 Frank Tore Johansen |
6 | Copyright (C) 1992 Frank Tore Johansen |
6 | |
7 | |
7 | This program is free software; you can redistribute it and/or modify |
8 | This program 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 |
… | |
… | |
26 | * Main client/server loops. |
27 | * Main client/server loops. |
27 | * |
28 | * |
28 | * \date 2003-12-02 |
29 | * \date 2003-12-02 |
29 | * |
30 | * |
30 | * loop.c mainly deals with initialization and higher level socket |
31 | * loop.c mainly deals with initialization and higher level socket |
31 | * maintenance (checking for lost connections and if data has arrived.) |
32 | * 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 | */ |
33 | */ |
34 | |
34 | |
35 | |
35 | |
36 | #include <global.h> |
36 | #include <global.h> |
37 | #include <sproto.h> |
37 | #include <sproto.h> |
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… | |
47 | #include <arpa/inet.h> |
47 | #include <arpa/inet.h> |
48 | |
48 | |
49 | #include <loader.h> |
49 | #include <loader.h> |
50 | |
50 | |
51 | #define MAX_QUEUE_DEPTH 500 //TODO |
51 | #define MAX_QUEUE_DEPTH 500 //TODO |
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52 | #define MAX_QUEUE_BACKLOG 3. //TODO |
52 | |
53 | |
53 | //TODO: cannot use this, as it might ignore vital commands such as fire_stop |
54 | void |
54 | #define MAX_QUEUE_BACKLOG 1e99 //TODO |
55 | client::reset_state () |
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56 | { |
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57 | if (!pl) |
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58 | return; |
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59 | |
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60 | pl->run_on = 0; |
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61 | pl->fire_on = 0; |
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62 | } |
55 | |
63 | |
56 | void |
64 | void |
57 | client::queue_command (packet_type *handler, char *data, int datalen) |
65 | client::queue_command (packet_type *handler, char *data, int datalen) |
58 | { |
66 | { |
59 | tstamp stamp = now (); |
67 | tstamp stamp = now (); |
60 | |
68 | |
61 | if (cmd_queue.size () >= MAX_QUEUE_DEPTH) |
69 | if (cmd_queue.size () >= MAX_QUEUE_DEPTH) |
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70 | { |
62 | //TODO: just disconnect here? |
71 | //TODO: just disconnect here? |
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72 | reset_state (); |
63 | send_packet_printf ("drawinfo %d command queue overflow, ignoring.", NDI_RED); |
73 | send_packet_printf ("drawinfo %d command queue overflow, ignoring.", NDI_RED); |
64 | else if (!cmd_queue.empty () && cmd_queue.front ().stamp + MAX_QUEUE_BACKLOG < stamp) |
74 | } |
65 | //TODO: do fire_stop and other things that might be necessary |
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66 | send_packet_printf ("drawinfo %d too many commands in queue, ignoring.", NDI_RED); |
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67 | else |
75 | else |
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76 | { |
68 | cmd_queue.push_back (command ( |
77 | cmd_queue.push_back (command ()); |
69 | stamp, handler, (char *)salloc (datalen, data), datalen |
78 | command &cmd = cmd_queue.back (); |
70 | )); |
79 | cmd.stamp = stamp; |
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80 | cmd.handler = handler; |
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81 | cmd.data = salloc<char> (datalen + 1, data); |
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82 | cmd.datalen = datalen; |
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83 | } |
71 | } |
84 | } |
72 | |
85 | |
73 | bool |
86 | bool |
74 | client::handle_command () |
87 | client::handle_command () |
75 | { |
88 | { |
76 | if (pl && pl->state == ST_PLAYING && pl->ob && pl->ob->speed_left < 0) |
89 | bool skipping = false; |
77 | return false; |
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78 | |
90 | |
79 | if (cmd_queue.empty ()) |
91 | while (!cmd_queue.empty () |
80 | return false; |
92 | && !(state == ST_PLAYING && pl->ob && pl->ob->speed_left <= 0)) |
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93 | { |
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94 | command &cmd = cmd_queue.front (); |
81 | |
95 | |
82 | command &cmd = cmd_queue.front (); |
96 | if (cmd.stamp + MAX_QUEUE_BACKLOG < now ()) |
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97 | { |
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98 | if (!skipping) |
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99 | { |
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100 | skipping = true; |
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101 | reset_state (); |
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102 | send_packet_printf ("drawinfo %d ignoring delayed commands.", NDI_RED); |
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103 | } |
83 | |
104 | |
84 | if (cmd.stamp + MAX_QUEUE_BACKLOG < now ()) |
105 | cmd_queue.pop_front (); |
85 | //TODO: do fire_stop and other things that might be necessary |
106 | } |
86 | send_packet_printf ("drawinfo %d ignoring delayed command.", NDI_RED); |
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87 | else |
107 | else |
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108 | { |
88 | execute (cmd.handler, cmd.data, cmd.datalen); |
109 | execute (cmd.handler, cmd.data, cmd.datalen); |
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110 | cmd_queue.pop_front (); |
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111 | return true; |
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112 | } |
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113 | } |
89 | |
114 | |
90 | sfree (cmd.data, cmd.datalen); |
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91 | cmd_queue.pop_front (); |
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92 | |
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93 | return true; |
115 | return false; |
94 | } |
116 | } |
95 | |
117 | |
96 | void |
118 | void |
97 | flush_sockets (void) |
119 | flush_sockets (void) |
98 | { |
120 | { |
99 | for (sockvec::iterator i = clients.begin (); i != clients.end (); ++i) |
121 | for (sockvec::iterator i = clients.begin (); i != clients.end (); ++i) |
100 | if ((*i)->status != Ns_Dead) |
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101 | (*i)->flush (); |
122 | (*i)->flush (); |
102 | } |
123 | } |
103 | |
124 | |
104 | /** |
125 | /** |
105 | * This checks the sockets for input, does the right thing. |
126 | * This checks the sockets for input, does the right thing. |
106 | * |
127 | * |
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114 | #ifdef CS_LOGSTATS |
135 | #ifdef CS_LOGSTATS |
115 | if ((time (NULL) - cst_lst.time_start) >= CS_LOGTIME) |
136 | if ((time (NULL) - cst_lst.time_start) >= CS_LOGTIME) |
116 | write_cs_stats (); |
137 | write_cs_stats (); |
117 | #endif |
138 | #endif |
118 | |
139 | |
119 | /* Go through the players. Let the loop set the next pl value, |
140 | //TODO: should not be done here, either |
120 | * since we may remove some |
141 | for (int i = 0; i < clients.size (); ++i) |
121 | */ |
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122 | //TODO: must be handled cleanly elsewhere |
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123 | for (player *pl = first_player; pl; ) |
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124 | { |
142 | { |
125 | player *npl = pl->next; |
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126 | |
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127 | //TODO: must be handled cleanly elsewhere |
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128 | if (!pl->socket || pl->socket->status == Ns_Dead) |
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129 | { |
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130 | save_player (pl->ob, 0); |
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131 | |
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132 | if (!QUERY_FLAG (pl->ob, FLAG_REMOVED)) |
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133 | { |
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134 | terminate_all_pets (pl->ob); |
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135 | pl->ob->remove (); |
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136 | } |
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137 | |
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138 | leave (pl, 1); |
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139 | final_free_player (pl); |
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140 | } |
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141 | |
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142 | pl = npl; |
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143 | } |
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144 | |
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145 | for (sockvec::iterator i = clients.begin (); i != clients.end (); ) |
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146 | { |
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147 | client *s = *i; |
143 | client *s = clients [i]; |
148 | |
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149 | if (s->status == Ns_Dead) |
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150 | { |
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151 | clients.erase (i); |
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152 | delete s; |
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153 | } |
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154 | else |
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155 | ++i; |
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156 | } |
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157 | |
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158 | /* We need to do some of the processing below regardless */ |
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159 | |
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160 | /* Check for any input on the sockets */ |
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161 | for (sockvec::iterator i = clients.begin (); i != clients.end (); ++i) |
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162 | { |
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163 | client *s = *i; |
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164 | player *pl = s->pl; |
144 | player *pl = s->pl; |
165 | |
145 | |
166 | s->handle_packet (); |
146 | if (pl && pl->ns && !pl->ns->destroyed ()) |
167 | s->handle_command (); |
147 | { |
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148 | client *ns = pl->ns; |
168 | |
149 | |
169 | //TODO: should not be done here, either |
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170 | if (s->status != Ns_Dead && pl) |
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171 | { |
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172 | /* Update the players stats once per tick. More efficient than |
150 | /* Update the players stats once per tick. More efficient than |
173 | * sending them whenever they change, and probably just as useful |
151 | * sending them whenever they change, and probably just as useful |
174 | */ |
152 | */ |
175 | esrv_update_stats (pl); |
153 | esrv_update_stats (pl); |
176 | |
154 | |
177 | if (pl->last_weight != -1 && pl->last_weight != WEIGHT (pl->ob)) |
155 | if (ns->last_weight != -1 && ns->last_weight != WEIGHT (pl->ob)) |
178 | { |
156 | { |
179 | esrv_update_item (UPD_WEIGHT, pl->ob, pl->ob); |
157 | esrv_update_item (UPD_WEIGHT, pl->ob, pl->ob); |
180 | if (pl->last_weight != WEIGHT (pl->ob)) |
158 | if (ns->last_weight != WEIGHT (pl->ob)) |
181 | LOG (llevError, "esrv_update_item(UPD_WEIGHT) did not set player weight: is %lu, should be %lu\n", |
159 | LOG (llevError, "esrv_update_item(UPD_WEIGHT) did not set player weight: is %lu, should be %lu\n", |
182 | (unsigned long) pl->last_weight, WEIGHT (pl->ob)); |
160 | (unsigned long) ns->last_weight, WEIGHT (pl->ob)); |
183 | } |
161 | } |
184 | |
162 | |
185 | draw_client_map (pl->ob); |
163 | draw_client_map (pl->ob); |
186 | |
164 | |
187 | if (s->update_look) |
165 | if (s->update_look) |
188 | esrv_draw_look (pl->ob); |
166 | esrv_draw_look (pl->ob); |
189 | } |
167 | } |
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168 | |
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169 | s->refcnt_chk (); |
190 | } |
170 | } |
191 | } |
171 | } |
192 | |
172 | |