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[xonotic/darkplaces.git] / host.c
1 /*
2 Copyright (C) 1996-1997 Id Software, Inc.
3
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12
13 See the GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
18
19 */
20 // host.c -- coordinates spawning and killing of local servers
21
22 #include "quakedef.h"
23
24 #include <time.h>
25 #include "libcurl.h"
26 #include "cdaudio.h"
27 #include "cl_video.h"
28 #include "progsvm.h"
29 #include "csprogs.h"
30 #include "sv_demo.h"
31 #include "snd_main.h"
32 #include "thread.h"
33 #include "utf8lib.h"
34
35 /*
36
37 A server can always be started, even if the system started out as a client
38 to a remote system.
39
40 A client can NOT be started if the system started as a dedicated server.
41
42 Memory is cleared / released when a server or client begins, not when they end.
43
44 */
45
46 // how many frames have occurred
47 // (checked by Host_Error and Host_SaveConfig_f)
48 int host_framecount = 0;
49 // LordHavoc: set when quit is executed
50 qboolean host_shuttingdown = false;
51
52 // the accumulated mainloop time since application started (with filtering), without any slowmo or clamping
53 double realtime;
54 // the main loop wall time for this frame
55 double host_dirtytime;
56
57 // current client
58 client_t *host_client;
59
60 jmp_buf host_abortframe;
61
62 // pretend frames take this amount of time (in seconds), 0 = realtime
63 cvar_t host_framerate = {0, "host_framerate","0", "locks frame timing to this value in seconds, 0.05 is 20fps for example, note that this can easily run too fast, use cl_maxfps if you want to limit your framerate instead, or sys_ticrate to limit server speed"};
64 cvar_t cl_maxphysicsframesperserverframe = {0, "cl_maxphysicsframesperserverframe","10", "maximum number of physics frames per server frame"};
65 // shows time used by certain subsystems
66 cvar_t host_speeds = {0, "host_speeds","0", "reports how much time is used in server/graphics/sound"};
67 cvar_t host_maxwait = {0, "host_maxwait","1000", "maximum sleep time requested from the operating system in millisecond. Larger sleeps will be done using multiple host_maxwait length sleeps. Lowering this value will increase CPU load, but may help working around problems with accuracy of sleep times."};
68 cvar_t cl_minfps = {CVAR_SAVE, "cl_minfps", "40", "minimum fps target - while the rendering performance is below this, it will drift toward lower quality"};
69 cvar_t cl_minfps_fade = {CVAR_SAVE, "cl_minfps_fade", "0.2", "how fast the quality adapts to varying framerate"};
70 cvar_t cl_minfps_qualitymax = {CVAR_SAVE, "cl_minfps_qualitymax", "1", "highest allowed drawdistance multiplier"};
71 cvar_t cl_minfps_qualitymin = {CVAR_SAVE, "cl_minfps_qualitymin", "0.25", "lowest allowed drawdistance multiplier"};
72 cvar_t cl_minfps_qualitypower = {CVAR_SAVE, "cl_minfps_qualitypower", "4", "raises quality value to a power of itself, higher values make quality drop more sharply in relation to framerate"};
73 cvar_t cl_minfps_qualityscale = {CVAR_SAVE, "cl_minfps_qualityscale", "0.5", "multiplier for quality"};
74 cvar_t cl_maxfps = {CVAR_SAVE, "cl_maxfps", "0", "maximum fps cap, 0 = unlimited, if game is running faster than this it will wait before running another frame (useful to make cpu time available to other programs)"};
75 cvar_t cl_maxfps_alwayssleep = {0, "cl_maxfps_alwayssleep","1", "gives up some processing time to other applications each frame, value in milliseconds, disabled if cl_maxfps is 0"};
76 cvar_t cl_maxidlefps = {CVAR_SAVE, "cl_maxidlefps", "20", "maximum fps cap when the game is not the active window (makes cpu time available to other programs"};
77
78 cvar_t developer = {CVAR_SAVE, "developer","0", "shows debugging messages and information (recommended for all developers and level designers); the value -1 also suppresses buffering and logging these messages"};
79 cvar_t developer_extra = {0, "developer_extra", "0", "prints additional debugging messages, often very verbose!"};
80 cvar_t developer_insane = {0, "developer_insane", "0", "prints huge streams of information about internal workings, entire contents of files being read/written, etc.  Not recommended!"};
81 cvar_t developer_loadfile = {0, "developer_loadfile","0", "prints name and size of every file loaded via the FS_LoadFile function (which is almost everything)"};
82 cvar_t developer_loading = {0, "developer_loading","0", "prints information about files as they are loaded or unloaded successfully"};
83 cvar_t developer_entityparsing = {0, "developer_entityparsing", "0", "prints detailed network entities information each time a packet is received"};
84
85 cvar_t timestamps = {CVAR_SAVE, "timestamps", "0", "prints timestamps on console messages"};
86 cvar_t timeformat = {CVAR_SAVE, "timeformat", "[%Y-%m-%d %H:%M:%S] ", "time format to use on timestamped console messages"};
87
88 /*
89 ================
90 Host_AbortCurrentFrame
91
92 aborts the current host frame and goes on with the next one
93 ================
94 */
95 void Host_AbortCurrentFrame(void)
96 {
97         longjmp (host_abortframe, 1);
98 }
99
100 /*
101 ================
102 Host_Error
103
104 This shuts down both the client and server
105 ================
106 */
107 void Host_Error (const char *error, ...)
108 {
109         static char hosterrorstring1[MAX_INPUTLINE]; // THREAD UNSAFE
110         static char hosterrorstring2[MAX_INPUTLINE]; // THREAD UNSAFE
111         static qboolean hosterror = false;
112         va_list argptr;
113
114         // turn off rcon redirect if it was active when the crash occurred
115         // to prevent loops when it is a networking problem
116         Con_Rcon_Redirect_Abort();
117
118         va_start (argptr,error);
119         dpvsnprintf (hosterrorstring1,sizeof(hosterrorstring1),error,argptr);
120         va_end (argptr);
121
122         Con_Printf("Host_Error: %s\n", hosterrorstring1);
123
124         // LordHavoc: if crashing very early, or currently shutting down, do
125         // Sys_Error instead
126         if (host_framecount < 3 || host_shuttingdown)
127                 Sys_Error ("Host_Error: %s", hosterrorstring1);
128
129         if (hosterror)
130                 Sys_Error ("Host_Error: recursively entered (original error was: %s    new error is: %s)", hosterrorstring2, hosterrorstring1);
131         hosterror = true;
132
133         strlcpy(hosterrorstring2, hosterrorstring1, sizeof(hosterrorstring2));
134
135         CL_Parse_DumpPacket();
136
137         CL_Parse_ErrorCleanUp();
138
139         //PR_Crash();
140
141         // print out where the crash happened, if it was caused by QC (and do a cleanup)
142         PRVM_Crash(SVVM_prog);
143         PRVM_Crash(CLVM_prog);
144         PRVM_Crash(MVM_prog);
145
146         cl.csqc_loaded = false;
147         Cvar_SetValueQuick(&csqc_progcrc, -1);
148         Cvar_SetValueQuick(&csqc_progsize, -1);
149
150         SV_LockThreadMutex();
151         Host_ShutdownServer ();
152         SV_UnlockThreadMutex();
153
154         if (cls.state == ca_dedicated)
155                 Sys_Error ("Host_Error: %s",hosterrorstring2);  // dedicated servers exit
156
157         CL_Disconnect ();
158         cls.demonum = -1;
159
160         hosterror = false;
161
162         Host_AbortCurrentFrame();
163 }
164
165 static void Host_ServerOptions (void)
166 {
167         int i;
168
169         // general default
170         svs.maxclients = 8;
171
172 // COMMANDLINEOPTION: Server: -dedicated [playerlimit] starts a dedicated server (with a command console), default playerlimit is 8
173 // COMMANDLINEOPTION: Server: -listen [playerlimit] starts a multiplayer server with graphical client, like singleplayer but other players can connect, default playerlimit is 8
174         // if no client is in the executable or -dedicated is specified on
175         // commandline, start a dedicated server
176         i = COM_CheckParm ("-dedicated");
177         if (i || !cl_available)
178         {
179                 cls.state = ca_dedicated;
180                 // check for -dedicated specifying how many players
181                 if (i && i + 1 < com_argc && atoi (com_argv[i+1]) >= 1)
182                         svs.maxclients = atoi (com_argv[i+1]);
183                 if (COM_CheckParm ("-listen"))
184                         Con_Printf ("Only one of -dedicated or -listen can be specified\n");
185                 // default sv_public on for dedicated servers (often hosted by serious administrators), off for listen servers (often hosted by clueless users)
186                 Cvar_SetValue("sv_public", 1);
187         }
188         else if (cl_available)
189         {
190                 // client exists and not dedicated, check if -listen is specified
191                 cls.state = ca_disconnected;
192                 i = COM_CheckParm ("-listen");
193                 if (i)
194                 {
195                         // default players unless specified
196                         if (i + 1 < com_argc && atoi (com_argv[i+1]) >= 1)
197                                 svs.maxclients = atoi (com_argv[i+1]);
198                 }
199                 else
200                 {
201                         // default players in some games, singleplayer in most
202                         if (gamemode != GAME_GOODVSBAD2 && gamemode != GAME_NEXUIZ && gamemode != GAME_XONOTIC && gamemode != GAME_BATTLEMECH)
203                                 svs.maxclients = 1;
204                 }
205         }
206
207         svs.maxclients = svs.maxclients_next = bound(1, svs.maxclients, MAX_SCOREBOARD);
208
209         svs.clients = (client_t *)Mem_Alloc(sv_mempool, sizeof(client_t) * svs.maxclients);
210
211         if (svs.maxclients > 1 && !deathmatch.integer && !coop.integer)
212                 Cvar_SetValueQuick(&deathmatch, 1);
213 }
214
215 /*
216 =======================
217 Host_InitLocal
218 ======================
219 */
220 void Host_SaveConfig_f(void);
221 void Host_LoadConfig_f(void);
222 extern cvar_t sv_writepicture_quality;
223 extern cvar_t r_texture_jpeg_fastpicmip;
224 static void Host_InitLocal (void)
225 {
226         Cmd_AddCommand("saveconfig", Host_SaveConfig_f, "save settings to config.cfg (or a specified filename) immediately (also automatic when quitting)");
227         Cmd_AddCommand("loadconfig", Host_LoadConfig_f, "reset everything and reload configs");
228
229         Cvar_RegisterVariable (&cl_maxphysicsframesperserverframe);
230         Cvar_RegisterVariable (&host_framerate);
231         Cvar_RegisterVariable (&host_speeds);
232         Cvar_RegisterVariable (&host_maxwait);
233         Cvar_RegisterVariable (&cl_minfps);
234         Cvar_RegisterVariable (&cl_minfps_fade);
235         Cvar_RegisterVariable (&cl_minfps_qualitymax);
236         Cvar_RegisterVariable (&cl_minfps_qualitymin);
237         Cvar_RegisterVariable (&cl_minfps_qualitypower);
238         Cvar_RegisterVariable (&cl_minfps_qualityscale);
239         Cvar_RegisterVariable (&cl_maxfps);
240         Cvar_RegisterVariable (&cl_maxfps_alwayssleep);
241         Cvar_RegisterVariable (&cl_maxidlefps);
242
243         Cvar_RegisterVariable (&developer);
244         Cvar_RegisterVariable (&developer_extra);
245         Cvar_RegisterVariable (&developer_insane);
246         Cvar_RegisterVariable (&developer_loadfile);
247         Cvar_RegisterVariable (&developer_loading);
248         Cvar_RegisterVariable (&developer_entityparsing);
249
250         Cvar_RegisterVariable (&timestamps);
251         Cvar_RegisterVariable (&timeformat);
252
253         Cvar_RegisterVariable (&sv_writepicture_quality);
254         Cvar_RegisterVariable (&r_texture_jpeg_fastpicmip);
255 }
256
257
258 /*
259 ===============
260 Host_SaveConfig_f
261
262 Writes key bindings and archived cvars to config.cfg
263 ===============
264 */
265 static void Host_SaveConfig_to(const char *file)
266 {
267         qfile_t *f;
268
269 // dedicated servers initialize the host but don't parse and set the
270 // config.cfg cvars
271         // LordHavoc: don't save a config if it crashed in startup
272         if (host_framecount >= 3 && cls.state != ca_dedicated && !COM_CheckParm("-benchmark") && !COM_CheckParm("-capturedemo"))
273         {
274                 f = FS_OpenRealFile(file, "wb", false);
275                 if (!f)
276                 {
277                         Con_Printf("Couldn't write %s.\n", file);
278                         return;
279                 }
280
281                 Key_WriteBindings (f);
282                 Cvar_WriteVariables (f);
283
284                 FS_Close (f);
285         }
286 }
287 void Host_SaveConfig(void)
288 {
289         Host_SaveConfig_to(CONFIGFILENAME);
290 }
291 void Host_SaveConfig_f(void)
292 {
293         const char *file = CONFIGFILENAME;
294
295         if(Cmd_Argc() >= 2) {
296                 file = Cmd_Argv(1);
297                 Con_Printf("Saving to %s\n", file);
298         }
299
300         Host_SaveConfig_to(file);
301 }
302
303 static void Host_AddConfigText(void)
304 {
305         // set up the default startmap_sp and startmap_dm aliases (mods can
306         // override these) and then execute the quake.rc startup script
307         if (gamemode == GAME_NEHAHRA)
308                 Cbuf_InsertText("alias startmap_sp \"map nehstart\"\nalias startmap_dm \"map nehstart\"\nexec " STARTCONFIGFILENAME "\n");
309         else if (gamemode == GAME_TRANSFUSION)
310                 Cbuf_InsertText("alias startmap_sp \"map e1m1\"\n""alias startmap_dm \"map bb1\"\nexec " STARTCONFIGFILENAME "\n");
311         else if (gamemode == GAME_TEU)
312                 Cbuf_InsertText("alias startmap_sp \"map start\"\nalias startmap_dm \"map start\"\nexec teu.rc\n");
313         else
314                 Cbuf_InsertText("alias startmap_sp \"map start\"\nalias startmap_dm \"map start\"\nexec " STARTCONFIGFILENAME "\n");
315 }
316
317 /*
318 ===============
319 Host_LoadConfig_f
320
321 Resets key bindings and cvars to defaults and then reloads scripts
322 ===============
323 */
324 void Host_LoadConfig_f(void)
325 {
326         // reset all cvars, commands and aliases to init values
327         Cmd_RestoreInitState();
328         // prepend a menu restart command to execute after the config
329         Cbuf_InsertText("\nmenu_restart\n");
330         // reset cvars to their defaults, and then exec startup scripts again
331         Host_AddConfigText();
332 }
333
334 /*
335 =================
336 SV_ClientPrint
337
338 Sends text across to be displayed
339 FIXME: make this just a stuffed echo?
340 =================
341 */
342 void SV_ClientPrint(const char *msg)
343 {
344         if (host_client->netconnection)
345         {
346                 MSG_WriteByte(&host_client->netconnection->message, svc_print);
347                 MSG_WriteString(&host_client->netconnection->message, msg);
348         }
349 }
350
351 /*
352 =================
353 SV_ClientPrintf
354
355 Sends text across to be displayed
356 FIXME: make this just a stuffed echo?
357 =================
358 */
359 void SV_ClientPrintf(const char *fmt, ...)
360 {
361         va_list argptr;
362         char msg[MAX_INPUTLINE];
363
364         va_start(argptr,fmt);
365         dpvsnprintf(msg,sizeof(msg),fmt,argptr);
366         va_end(argptr);
367
368         SV_ClientPrint(msg);
369 }
370
371 /*
372 =================
373 SV_BroadcastPrint
374
375 Sends text to all active clients
376 =================
377 */
378 void SV_BroadcastPrint(const char *msg)
379 {
380         int i;
381         client_t *client;
382
383         for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
384         {
385                 if (client->active && client->netconnection)
386                 {
387                         MSG_WriteByte(&client->netconnection->message, svc_print);
388                         MSG_WriteString(&client->netconnection->message, msg);
389                 }
390         }
391
392         if (sv_echobprint.integer && cls.state == ca_dedicated)
393                 Con_Print(msg);
394 }
395
396 /*
397 =================
398 SV_BroadcastPrintf
399
400 Sends text to all active clients
401 =================
402 */
403 void SV_BroadcastPrintf(const char *fmt, ...)
404 {
405         va_list argptr;
406         char msg[MAX_INPUTLINE];
407
408         va_start(argptr,fmt);
409         dpvsnprintf(msg,sizeof(msg),fmt,argptr);
410         va_end(argptr);
411
412         SV_BroadcastPrint(msg);
413 }
414
415 /*
416 =================
417 Host_ClientCommands
418
419 Send text over to the client to be executed
420 =================
421 */
422 void Host_ClientCommands(const char *fmt, ...)
423 {
424         va_list argptr;
425         char string[MAX_INPUTLINE];
426
427         if (!host_client->netconnection)
428                 return;
429
430         va_start(argptr,fmt);
431         dpvsnprintf(string, sizeof(string), fmt, argptr);
432         va_end(argptr);
433
434         MSG_WriteByte(&host_client->netconnection->message, svc_stufftext);
435         MSG_WriteString(&host_client->netconnection->message, string);
436 }
437
438 /*
439 =====================
440 SV_DropClient
441
442 Called when the player is getting totally kicked off the host
443 if (crash = true), don't bother sending signofs
444 =====================
445 */
446 void SV_DropClient(qboolean crash)
447 {
448         prvm_prog_t *prog = SVVM_prog;
449         int i;
450         Con_Printf("Client \"%s\" dropped\n", host_client->name);
451
452         SV_StopDemoRecording(host_client);
453
454         // make sure edict is not corrupt (from a level change for example)
455         host_client->edict = PRVM_EDICT_NUM(host_client - svs.clients + 1);
456
457         if (host_client->netconnection)
458         {
459                 // tell the client to be gone
460                 if (!crash)
461                 {
462                         // LordHavoc: no opportunity for resending, so use unreliable 3 times
463                         unsigned char bufdata[8];
464                         sizebuf_t buf;
465                         memset(&buf, 0, sizeof(buf));
466                         buf.data = bufdata;
467                         buf.maxsize = sizeof(bufdata);
468                         MSG_WriteByte(&buf, svc_disconnect);
469                         NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, false);
470                         NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, false);
471                         NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, false);
472                 }
473         }
474
475         // call qc ClientDisconnect function
476         // LordHavoc: don't call QC if server is dead (avoids recursive
477         // Host_Error in some mods when they run out of edicts)
478         if (host_client->clientconnectcalled && sv.active && host_client->edict)
479         {
480                 // call the prog function for removing a client
481                 // this will set the body to a dead frame, among other things
482                 int saveSelf = PRVM_serverglobaledict(self);
483                 host_client->clientconnectcalled = false;
484                 PRVM_serverglobalfloat(time) = sv.time;
485                 PRVM_serverglobaledict(self) = PRVM_EDICT_TO_PROG(host_client->edict);
486                 prog->ExecuteProgram(prog, PRVM_serverfunction(ClientDisconnect), "QC function ClientDisconnect is missing");
487                 PRVM_serverglobaledict(self) = saveSelf;
488         }
489
490         if (host_client->netconnection)
491         {
492                 // break the net connection
493                 NetConn_Close(host_client->netconnection);
494                 host_client->netconnection = NULL;
495         }
496
497         // if a download is active, close it
498         if (host_client->download_file)
499         {
500                 Con_DPrintf("Download of %s aborted when %s dropped\n", host_client->download_name, host_client->name);
501                 FS_Close(host_client->download_file);
502                 host_client->download_file = NULL;
503                 host_client->download_name[0] = 0;
504                 host_client->download_expectedposition = 0;
505                 host_client->download_started = false;
506         }
507
508         // remove leaving player from scoreboard
509         host_client->name[0] = 0;
510         host_client->colors = 0;
511         host_client->frags = 0;
512         // send notification to all clients
513         // get number of client manually just to make sure we get it right...
514         i = host_client - svs.clients;
515         MSG_WriteByte (&sv.reliable_datagram, svc_updatename);
516         MSG_WriteByte (&sv.reliable_datagram, i);
517         MSG_WriteString (&sv.reliable_datagram, host_client->name);
518         MSG_WriteByte (&sv.reliable_datagram, svc_updatecolors);
519         MSG_WriteByte (&sv.reliable_datagram, i);
520         MSG_WriteByte (&sv.reliable_datagram, host_client->colors);
521         MSG_WriteByte (&sv.reliable_datagram, svc_updatefrags);
522         MSG_WriteByte (&sv.reliable_datagram, i);
523         MSG_WriteShort (&sv.reliable_datagram, host_client->frags);
524
525         // free the client now
526         if (host_client->entitydatabase)
527                 EntityFrame_FreeDatabase(host_client->entitydatabase);
528         if (host_client->entitydatabase4)
529                 EntityFrame4_FreeDatabase(host_client->entitydatabase4);
530         if (host_client->entitydatabase5)
531                 EntityFrame5_FreeDatabase(host_client->entitydatabase5);
532
533         if (sv.active)
534         {
535                 // clear a fields that matter to DP_SV_CLIENTNAME and DP_SV_CLIENTCOLORS, and also frags
536                 PRVM_ED_ClearEdict(prog, host_client->edict);
537         }
538
539         // clear the client struct (this sets active to false)
540         memset(host_client, 0, sizeof(*host_client));
541
542         // update server listing on the master because player count changed
543         // (which the master uses for filtering empty/full servers)
544         NetConn_Heartbeat(1);
545
546         if (sv.loadgame)
547         {
548                 for (i = 0;i < svs.maxclients;i++)
549                         if (svs.clients[i].active && !svs.clients[i].spawned)
550                                 break;
551                 if (i == svs.maxclients)
552                 {
553                         Con_Printf("Loaded game, everyone rejoined - unpausing\n");
554                         sv.paused = sv.loadgame = false; // we're basically done with loading now
555                 }
556         }
557 }
558
559 /*
560 ==================
561 Host_ShutdownServer
562
563 This only happens at the end of a game, not between levels
564 ==================
565 */
566 void Host_ShutdownServer(void)
567 {
568         prvm_prog_t *prog = SVVM_prog;
569         int i;
570
571         Con_DPrintf("Host_ShutdownServer\n");
572
573         if (!sv.active)
574                 return;
575
576         NetConn_Heartbeat(2);
577         NetConn_Heartbeat(2);
578
579 // make sure all the clients know we're disconnecting
580         World_End(&sv.world);
581         if(prog->loaded)
582         {
583                 if(PRVM_serverfunction(SV_Shutdown))
584                 {
585                         func_t s = PRVM_serverfunction(SV_Shutdown);
586                         PRVM_serverglobalfloat(time) = sv.time;
587                         PRVM_serverfunction(SV_Shutdown) = 0; // prevent it from getting called again
588                         prog->ExecuteProgram(prog, s,"SV_Shutdown() required");
589                 }
590         }
591         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
592                 if (host_client->active)
593                         SV_DropClient(false); // server shutdown
594
595         NetConn_CloseServerPorts();
596
597         sv.active = false;
598 //
599 // clear structures
600 //
601         memset(&sv, 0, sizeof(sv));
602         memset(svs.clients, 0, svs.maxclients*sizeof(client_t));
603
604         cl.islocalgame = false;
605 }
606
607
608 //============================================================================
609
610 /*
611 ===================
612 Host_GetConsoleCommands
613
614 Add them exactly as if they had been typed at the console
615 ===================
616 */
617 static void Host_GetConsoleCommands (void)
618 {
619         char *cmd;
620
621         while (1)
622         {
623                 cmd = Sys_ConsoleInput ();
624                 if (!cmd)
625                         break;
626                 Cbuf_AddText (cmd);
627         }
628 }
629
630 /*
631 ==================
632 Host_TimeReport
633
634 Returns a time report string, for example for
635 ==================
636 */
637 const char *Host_TimingReport(char *buf, size_t buflen)
638 {
639         return va(buf, buflen, "%.1f%% CPU, %.2f%% lost, offset avg %.1fms, max %.1fms, sdev %.1fms", svs.perf_cpuload * 100, svs.perf_lost * 100, svs.perf_offset_avg * 1000, svs.perf_offset_max * 1000, svs.perf_offset_sdev * 1000);
640 }
641
642 /*
643 ==================
644 Host_Frame
645
646 Runs all active servers
647 ==================
648 */
649 static void Host_Init(void);
650 void Host_Main(void)
651 {
652         double time1 = 0;
653         double time2 = 0;
654         double time3 = 0;
655         double cl_timer = 0, sv_timer = 0;
656         double clframetime, deltacleantime, olddirtytime, dirtytime;
657         double wait;
658         int pass1, pass2, pass3, i;
659         char vabuf[1024];
660
661         Host_Init();
662
663         realtime = 0;
664         dirtytime = Sys_DirtyTime();
665         for (;;)
666         {
667                 if (setjmp(host_abortframe))
668                 {
669                         SCR_ClearLoadingScreen(false);
670                         continue;                       // something bad happened, or the server disconnected
671                 }
672
673                 olddirtytime = host_dirtytime;
674                 dirtytime = Sys_DirtyTime();
675                 deltacleantime = dirtytime - olddirtytime;
676                 if (deltacleantime < 0)
677                 {
678                         // warn if it's significant
679                         if (deltacleantime < -0.01)
680                                 Con_Printf("Host_Mingled: time stepped backwards (went from %f to %f, difference %f)\n", olddirtytime, dirtytime, deltacleantime);
681                         deltacleantime = 0;
682                 }
683                 else if (deltacleantime >= 1800)
684                 {
685                         Con_Printf("Host_Mingled: time stepped forward (went from %f to %f, difference %f)\n", olddirtytime, dirtytime, deltacleantime);
686                         deltacleantime = 0;
687                 }
688                 realtime += deltacleantime;
689                 host_dirtytime = dirtytime;
690
691                 cl_timer += deltacleantime;
692                 sv_timer += deltacleantime;
693
694                 if (!svs.threaded)
695                 {
696                         svs.perf_acc_realtime += deltacleantime;
697
698                         // Look for clients who have spawned
699                         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
700                                 if(host_client->spawned)
701                                         if(host_client->netconnection)
702                                                 break;
703                         if(i == svs.maxclients)
704                         {
705                                 // Nobody is looking? Then we won't do timing...
706                                 // Instead, reset it to zero
707                                 svs.perf_acc_realtime = svs.perf_acc_sleeptime = svs.perf_acc_lost = svs.perf_acc_offset = svs.perf_acc_offset_squared = svs.perf_acc_offset_max = svs.perf_acc_offset_samples = 0;
708                         }
709                         else if(svs.perf_acc_realtime > 5)
710                         {
711                                 svs.perf_cpuload = 1 - svs.perf_acc_sleeptime / svs.perf_acc_realtime;
712                                 svs.perf_lost = svs.perf_acc_lost / svs.perf_acc_realtime;
713                                 if(svs.perf_acc_offset_samples > 0)
714                                 {
715                                         svs.perf_offset_max = svs.perf_acc_offset_max;
716                                         svs.perf_offset_avg = svs.perf_acc_offset / svs.perf_acc_offset_samples;
717                                         svs.perf_offset_sdev = sqrt(svs.perf_acc_offset_squared / svs.perf_acc_offset_samples - svs.perf_offset_avg * svs.perf_offset_avg);
718                                 }
719                                 if(svs.perf_lost > 0 && developer_extra.integer)
720                                         Con_DPrintf("Server can't keep up: %s\n", Host_TimingReport(vabuf, sizeof(vabuf)));
721                                 svs.perf_acc_realtime = svs.perf_acc_sleeptime = svs.perf_acc_lost = svs.perf_acc_offset = svs.perf_acc_offset_squared = svs.perf_acc_offset_max = svs.perf_acc_offset_samples = 0;
722                         }
723                 }
724
725                 if (slowmo.value < 0.00001 && slowmo.value != 0)
726                         Cvar_SetValue("slowmo", 0);
727                 if (host_framerate.value < 0.00001 && host_framerate.value != 0)
728                         Cvar_SetValue("host_framerate", 0);
729
730                 // keep the random time dependent, but not when playing demos/benchmarking
731                 if(!*sv_random_seed.string && !cls.demoplayback)
732                         rand();
733
734                 // get new key events
735                 Key_EventQueue_Unblock();
736                 SndSys_SendKeyEvents();
737                 Sys_SendKeyEvents();
738
739                 NetConn_UpdateSockets();
740
741                 Log_DestBuffer_Flush();
742
743                 // receive packets on each main loop iteration, as the main loop may
744                 // be undersleeping due to select() detecting a new packet
745                 if (sv.active && !svs.threaded)
746                         NetConn_ServerFrame();
747
748                 Curl_Run();
749
750                 // check for commands typed to the host
751                 Host_GetConsoleCommands();
752
753                 // when a server is running we only execute console commands on server frames
754                 // (this mainly allows frikbot .way config files to work properly by staying in sync with the server qc)
755                 // otherwise we execute them on client frames
756                 if (sv.active ? sv_timer > 0 : cl_timer > 0)
757                 {
758                         SV_LockThreadMutex();
759                         // process console commands
760 //                      R_TimeReport("preconsole");
761                         CL_VM_PreventInformationLeaks();
762                         Cbuf_Execute();
763 //                      R_TimeReport("console");
764                         SV_UnlockThreadMutex();
765                 }
766
767                 //Con_Printf("%6.0f %6.0f\n", cl_timer * 1000000.0, sv_timer * 1000000.0);
768
769                 // if the accumulators haven't become positive yet, wait a while
770                 if (cls.state == ca_dedicated)
771                         wait = sv_timer * -1000000.0;
772                 else if (!sv.active || svs.threaded)
773                         wait = cl_timer * -1000000.0;
774                 else
775                         wait = max(cl_timer, sv_timer) * -1000000.0;
776
777                 if (!cls.timedemo && wait >= 1)
778                 {
779                         double time0, delta;
780
781                         if(host_maxwait.value <= 0)
782                                 wait = min(wait, 1000000.0);
783                         else
784                                 wait = min(wait, host_maxwait.value * 1000.0);
785                         if(wait < 1)
786                                 wait = 1; // because we cast to int
787
788                         time0 = Sys_DirtyTime();
789                         if (sv_checkforpacketsduringsleep.integer && !sys_usenoclockbutbenchmark.integer && !svs.threaded)
790                                 NetConn_SleepMicroseconds((int)wait);
791                         else
792                                 Sys_Sleep((int)wait);
793                         delta = Sys_DirtyTime() - time0;
794                         if (delta < 0 || delta >= 1800) delta = 0;
795                         if (!svs.threaded)
796                                 svs.perf_acc_sleeptime += delta;
797 //                      R_TimeReport("sleep");
798                         continue;
799                 }
800
801                 // limit the frametime steps to no more than 100ms each
802                 if (cl_timer > 0.1)
803                         cl_timer = 0.1;
804                 if (sv_timer > 0.1)
805                 {
806                         if (!svs.threaded)
807                                 svs.perf_acc_lost += (sv_timer - 0.1);
808                         sv_timer = 0.1;
809                 }
810
811                 R_TimeReport("---");
812
813         //-------------------
814         //
815         // server operations
816         //
817         //-------------------
818
819                 // limit the frametime steps to no more than 100ms each
820                 if (sv.active && sv_timer > 0 && !svs.threaded)
821                 {
822                         // execute one or more server frames, with an upper limit on how much
823                         // execution time to spend on server frames to avoid freezing the game if
824                         // the server is overloaded, this execution time limit means the game will
825                         // slow down if the server is taking too long.
826                         int framecount, framelimit = 1;
827                         double advancetime, aborttime = 0;
828                         float offset;
829                         prvm_prog_t *prog = SVVM_prog;
830
831                         // run the world state
832                         // don't allow simulation to run too fast or too slow or logic glitches can occur
833
834                         // stop running server frames if the wall time reaches this value
835                         if (sys_ticrate.value <= 0)
836                                 advancetime = sv_timer;
837                         else if (cl.islocalgame && !sv_fixedframeratesingleplayer.integer)
838                         {
839                                 // synchronize to the client frametime, but no less than 10ms and no more than sys_ticrate
840                                 advancetime = bound(0.01, cl_timer, sys_ticrate.value);
841                                 framelimit = cl_maxphysicsframesperserverframe.integer;
842                                 aborttime = realtime + 0.1;
843                         }
844                         else
845                         {
846                                 advancetime = sys_ticrate.value;
847                                 // listen servers can run multiple server frames per client frame
848                                 if (cls.state == ca_connected)
849                                 {
850                                         framelimit = cl_maxphysicsframesperserverframe.integer;
851                                         aborttime = realtime + 0.1;
852                                 }
853                         }
854                         if(slowmo.value > 0 && slowmo.value < 1)
855                                 advancetime = min(advancetime, 0.1 / slowmo.value);
856                         else
857                                 advancetime = min(advancetime, 0.1);
858
859                         if(advancetime > 0)
860                         {
861                                 offset = Sys_DirtyTime() - realtime;if (offset < 0 || offset >= 1800) offset = 0;
862                                 offset += sv_timer;
863                                 ++svs.perf_acc_offset_samples;
864                                 svs.perf_acc_offset += offset;
865                                 svs.perf_acc_offset_squared += offset * offset;
866                                 if(svs.perf_acc_offset_max < offset)
867                                         svs.perf_acc_offset_max = offset;
868                         }
869
870                         // only advance time if not paused
871                         // the game also pauses in singleplayer when menu or console is used
872                         sv.frametime = advancetime * slowmo.value;
873                         if (host_framerate.value)
874                                 sv.frametime = host_framerate.value;
875                         if (sv.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive || cl.csqc_paused)))
876                                 sv.frametime = 0;
877
878                         for (framecount = 0;framecount < framelimit && sv_timer > 0;framecount++)
879                         {
880                                 sv_timer -= advancetime;
881
882                                 // move things around and think unless paused
883                                 if (sv.frametime)
884                                         SV_Physics();
885
886                                 // if this server frame took too long, break out of the loop
887                                 if (framelimit > 1 && Sys_DirtyTime() >= aborttime)
888                                         break;
889                         }
890                         R_TimeReport("serverphysics");
891
892                         // send all messages to the clients
893                         SV_SendClientMessages();
894
895                         if (sv.paused == 1 && realtime > sv.pausedstart && sv.pausedstart > 0) {
896                                 prog->globals.generic[OFS_PARM0] = realtime - sv.pausedstart;
897                                 PRVM_serverglobalfloat(time) = sv.time;
898                                 prog->ExecuteProgram(prog, PRVM_serverfunction(SV_PausedTic), "QC function SV_PausedTic is missing");
899                         }
900
901                         // send an heartbeat if enough time has passed since the last one
902                         NetConn_Heartbeat(0);
903                         R_TimeReport("servernetwork");
904                 }
905                 else if (!svs.threaded)
906                 {
907                         // don't let r_speeds display jump around
908                         R_TimeReport("serverphysics");
909                         R_TimeReport("servernetwork");
910                 }
911
912         //-------------------
913         //
914         // client operations
915         //
916         //-------------------
917
918                 if (cls.state != ca_dedicated && (cl_timer > 0 || cls.timedemo || ((vid_activewindow ? cl_maxfps : cl_maxidlefps).value < 1)))
919                 {
920                         R_TimeReport("---");
921                         Collision_Cache_NewFrame();
922                         R_TimeReport("collisioncache");
923                         // decide the simulation time
924                         if (cls.capturevideo.active)
925                         {
926                                 //***
927                                 if (cls.capturevideo.realtime)
928                                         clframetime = cl.realframetime = max(cl_timer, 1.0 / cls.capturevideo.framerate);
929                                 else
930                                 {
931                                         clframetime = 1.0 / cls.capturevideo.framerate;
932                                         cl.realframetime = max(cl_timer, clframetime);
933                                 }
934                         }
935                         else if (vid_activewindow && cl_maxfps.value >= 1 && !cls.timedemo)
936                         {
937                                 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxfps.value);
938                                 // when running slow, we need to sleep to keep input responsive
939                                 wait = bound(0, cl_maxfps_alwayssleep.value * 1000, 100000);
940                                 if (wait > 0)
941                                         Sys_Sleep((int)wait);
942                         }
943                         else if (!vid_activewindow && cl_maxidlefps.value >= 1 && !cls.timedemo)
944                                 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxidlefps.value);
945                         else
946                                 clframetime = cl.realframetime = cl_timer;
947
948                         // apply slowmo scaling
949                         clframetime *= cl.movevars_timescale;
950                         // scale playback speed of demos by slowmo cvar
951                         if (cls.demoplayback)
952                         {
953                                 clframetime *= slowmo.value;
954                                 // if demo playback is paused, don't advance time at all
955                                 if (cls.demopaused)
956                                         clframetime = 0;
957                         }
958
959                         // host_framerate overrides all else
960                         if (host_framerate.value)
961                                 clframetime = host_framerate.value;
962
963                         if (cl.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive || cl.csqc_paused)))
964                                 clframetime = 0;
965
966                         if (cls.timedemo)
967                                 clframetime = cl.realframetime = cl_timer;
968
969                         // deduct the frame time from the accumulator
970                         cl_timer -= cl.realframetime;
971
972                         cl.oldtime = cl.time;
973                         cl.time += clframetime;
974
975                         // update video
976                         if (host_speeds.integer)
977                                 time1 = Sys_DirtyTime();
978                         R_TimeReport("pre-input");
979
980                         // Collect input into cmd
981                         CL_Input();
982
983                         R_TimeReport("input");
984
985                         // check for new packets
986                         NetConn_ClientFrame();
987
988                         // read a new frame from a demo if needed
989                         CL_ReadDemoMessage();
990                         R_TimeReport("clientnetwork");
991
992                         // now that packets have been read, send input to server
993                         CL_SendMove();
994                         R_TimeReport("sendmove");
995
996                         // update client world (interpolate entities, create trails, etc)
997                         CL_UpdateWorld();
998                         R_TimeReport("lerpworld");
999
1000                         CL_Video_Frame();
1001
1002                         R_TimeReport("client");
1003
1004                         CL_UpdateScreen();
1005                         R_TimeReport("render");
1006
1007                         if (host_speeds.integer)
1008                                 time2 = Sys_DirtyTime();
1009
1010                         // update audio
1011                         if(cl.csqc_usecsqclistener)
1012                         {
1013                                 S_Update(&cl.csqc_listenermatrix);
1014                                 cl.csqc_usecsqclistener = false;
1015                         }
1016                         else
1017                                 S_Update(&r_refdef.view.matrix);
1018
1019                         CDAudio_Update();
1020                         R_TimeReport("audio");
1021
1022                         // reset gathering of mouse input
1023                         in_mouse_x = in_mouse_y = 0;
1024
1025                         if (host_speeds.integer)
1026                         {
1027                                 pass1 = (int)((time1 - time3)*1000000);
1028                                 time3 = Sys_DirtyTime();
1029                                 pass2 = (int)((time2 - time1)*1000000);
1030                                 pass3 = (int)((time3 - time2)*1000000);
1031                                 Con_Printf("%6ius total %6ius server %6ius gfx %6ius snd\n",
1032                                                         pass1+pass2+pass3, pass1, pass2, pass3);
1033                         }
1034                 }
1035
1036 #if MEMPARANOIA
1037                 Mem_CheckSentinelsGlobal();
1038 #else
1039                 if (developer_memorydebug.integer)
1040                         Mem_CheckSentinelsGlobal();
1041 #endif
1042
1043                 // if there is some time remaining from this frame, reset the timers
1044                 if (cl_timer >= 0)
1045                         cl_timer = 0;
1046                 if (sv_timer >= 0)
1047                 {
1048                         if (!svs.threaded)
1049                                 svs.perf_acc_lost += sv_timer;
1050                         sv_timer = 0;
1051                 }
1052
1053                 host_framecount++;
1054         }
1055 }
1056
1057 //============================================================================
1058
1059 qboolean vid_opened = false;
1060 void Host_StartVideo(void)
1061 {
1062         if (!vid_opened && cls.state != ca_dedicated)
1063         {
1064                 vid_opened = true;
1065                 // make sure we open sockets before opening video because the Windows Firewall "unblock?" dialog can screw up the graphics context on some graphics drivers
1066                 NetConn_UpdateSockets();
1067                 VID_Start();
1068                 CDAudio_Startup();
1069         }
1070 }
1071
1072 char engineversion[128];
1073
1074 qboolean sys_nostdout = false;
1075
1076 extern qboolean host_stuffcmdsrun;
1077
1078 /*
1079 ====================
1080 Host_Init
1081 ====================
1082 */
1083 static void Host_Init (void)
1084 {
1085         int i;
1086         const char* os;
1087         char vabuf[1024];
1088
1089         if (COM_CheckParm("-profilegameonly"))
1090                 Sys_AllowProfiling(false);
1091
1092         // LordHavoc: quake never seeded the random number generator before... heh
1093         if (COM_CheckParm("-benchmark"))
1094                 srand(0); // predictable random sequence for -benchmark
1095         else
1096                 srand((unsigned int)time(NULL));
1097
1098         // FIXME: this is evil, but possibly temporary
1099         // LordHavoc: doesn't seem very temporary...
1100         // LordHavoc: made this a saved cvar
1101 // COMMANDLINEOPTION: Console: -developer enables warnings and other notices (RECOMMENDED for mod developers)
1102         if (COM_CheckParm("-developer"))
1103         {
1104                 developer.value = developer.integer = 1;
1105                 developer.string = "1";
1106         }
1107
1108         if (COM_CheckParm("-developer2") || COM_CheckParm("-developer3"))
1109         {
1110                 developer.value = developer.integer = 1;
1111                 developer.string = "1";
1112                 developer_extra.value = developer_extra.integer = 1;
1113                 developer_extra.string = "1";
1114                 developer_insane.value = developer_insane.integer = 1;
1115                 developer_insane.string = "1";
1116                 developer_memory.value = developer_memory.integer = 1;
1117                 developer_memory.string = "1";
1118                 developer_memorydebug.value = developer_memorydebug.integer = 1;
1119                 developer_memorydebug.string = "1";
1120         }
1121
1122         if (COM_CheckParm("-developer3"))
1123         {
1124                 gl_paranoid.integer = 1;gl_paranoid.string = "1";
1125                 gl_printcheckerror.integer = 1;gl_printcheckerror.string = "1";
1126         }
1127
1128 // COMMANDLINEOPTION: Console: -nostdout disables text output to the terminal the game was launched from
1129         if (COM_CheckParm("-nostdout"))
1130                 sys_nostdout = 1;
1131
1132         // used by everything
1133         Memory_Init();
1134
1135         // initialize console command/cvar/alias/command execution systems
1136         Cmd_Init();
1137
1138         // initialize memory subsystem cvars/commands
1139         Memory_Init_Commands();
1140
1141         // initialize console and logging and its cvars/commands
1142         Con_Init();
1143
1144         // initialize various cvars that could not be initialized earlier
1145         u8_Init();
1146         Curl_Init_Commands();
1147         Cmd_Init_Commands();
1148         Sys_Init_Commands();
1149         COM_Init_Commands();
1150         FS_Init_Commands();
1151
1152         // initialize console window (only used by sys_win.c)
1153         Sys_InitConsole();
1154
1155         // initialize the self-pack (must be before COM_InitGameType as it may add command line options)
1156         FS_Init_SelfPack();
1157
1158         // detect gamemode from commandline options or executable name
1159         COM_InitGameType();
1160
1161         // construct a version string for the corner of the console
1162         os = DP_OS_NAME;
1163         dpsnprintf (engineversion, sizeof (engineversion), "%s %s %s", gamename, os, buildstring);
1164         Con_Printf("%s\n", engineversion);
1165
1166         // initialize ixtable
1167         Mathlib_Init();
1168
1169         // initialize filesystem (including fs_basedir, fs_gamedir, -game, scr_screenshot_name)
1170         FS_Init();
1171
1172         // must be after FS_Init
1173         Crypto_Init();
1174         Crypto_Init_Commands();
1175
1176         NetConn_Init();
1177         Curl_Init();
1178         //PR_Init();
1179         //PR_Cmd_Init();
1180         PRVM_Init();
1181         Mod_Init();
1182         World_Init();
1183         SV_Init();
1184         V_Init(); // some cvars needed by server player physics (cl_rollangle etc)
1185         Host_InitCommands();
1186         Host_InitLocal();
1187         Host_ServerOptions();
1188
1189         Thread_Init();
1190
1191         if (cls.state == ca_dedicated)
1192                 Cmd_AddCommand ("disconnect", CL_Disconnect_f, "disconnect from server (or disconnect all clients if running a server)");
1193         else
1194         {
1195                 Con_DPrintf("Initializing client\n");
1196
1197                 R_Modules_Init();
1198                 Palette_Init();
1199                 MR_Init_Commands();
1200                 VID_Shared_Init();
1201                 VID_Init();
1202                 Render_Init();
1203                 S_Init();
1204                 CDAudio_Init();
1205                 Key_Init();
1206                 CL_Init();
1207         }
1208
1209         // save off current state of aliases, commands and cvars for later restore if FS_GameDir_f is called
1210         // NOTE: menu commands are freed by Cmd_RestoreInitState
1211         Cmd_SaveInitState();
1212
1213         // FIXME: put this into some neat design, but the menu should be allowed to crash
1214         // without crashing the whole game, so this should just be a short-time solution
1215
1216         // here comes the not so critical stuff
1217         if (setjmp(host_abortframe)) {
1218                 return;
1219         }
1220
1221         Host_AddConfigText();
1222         Cbuf_Execute();
1223
1224         // if stuffcmds wasn't run, then quake.rc is probably missing, use default
1225         if (!host_stuffcmdsrun)
1226         {
1227                 Cbuf_AddText("exec default.cfg\nexec " CONFIGFILENAME "\nexec autoexec.cfg\nstuffcmds\n");
1228                 Cbuf_Execute();
1229         }
1230
1231         // put up the loading image so the user doesn't stare at a black screen...
1232         SCR_BeginLoadingPlaque();
1233
1234         if (cls.state != ca_dedicated)
1235         {
1236                 MR_Init();
1237         }
1238
1239         // check for special benchmark mode
1240 // COMMANDLINEOPTION: Client: -benchmark <demoname> runs a timedemo and quits, results of any timedemo can be found in gamedir/benchmark.log (for example id1/benchmark.log)
1241         i = COM_CheckParm("-benchmark");
1242         if (i && i + 1 < com_argc)
1243         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1244         {
1245                 Cbuf_AddText(va(vabuf, sizeof(vabuf), "timedemo %s\n", com_argv[i + 1]));
1246                 Cbuf_Execute();
1247         }
1248
1249         // check for special demo mode
1250 // COMMANDLINEOPTION: Client: -demo <demoname> runs a playdemo and quits
1251         i = COM_CheckParm("-demo");
1252         if (i && i + 1 < com_argc)
1253         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1254         {
1255                 Cbuf_AddText(va(vabuf, sizeof(vabuf), "playdemo %s\n", com_argv[i + 1]));
1256                 Cbuf_Execute();
1257         }
1258
1259 // COMMANDLINEOPTION: Client: -capturedemo <demoname> captures a playdemo and quits
1260         i = COM_CheckParm("-capturedemo");
1261         if (i && i + 1 < com_argc)
1262         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1263         {
1264                 Cbuf_AddText(va(vabuf, sizeof(vabuf), "playdemo %s\ncl_capturevideo 1\n", com_argv[i + 1]));
1265                 Cbuf_Execute();
1266         }
1267
1268         if (cls.state == ca_dedicated || COM_CheckParm("-listen"))
1269         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1270         {
1271                 Cbuf_AddText("startmap_dm\n");
1272                 Cbuf_Execute();
1273         }
1274
1275         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1276         {
1277                 Cbuf_AddText("togglemenu\n");
1278                 Cbuf_Execute();
1279         }
1280
1281         Con_DPrint("========Initialized=========\n");
1282
1283         //Host_StartVideo();
1284
1285         if (cls.state != ca_dedicated)
1286                 SV_StartThread();
1287 }
1288
1289
1290 /*
1291 ===============
1292 Host_Shutdown
1293
1294 FIXME: this is a callback from Sys_Quit and Sys_Error.  It would be better
1295 to run quit through here before the final handoff to the sys code.
1296 ===============
1297 */
1298 void Host_Shutdown(void)
1299 {
1300         static qboolean isdown = false;
1301
1302         if (isdown)
1303         {
1304                 Con_Print("recursive shutdown\n");
1305                 return;
1306         }
1307         if (setjmp(host_abortframe))
1308         {
1309                 Con_Print("aborted the quitting frame?!?\n");
1310                 return;
1311         }
1312         isdown = true;
1313
1314         // be quiet while shutting down
1315         S_StopAllSounds();
1316
1317         // end the server thread
1318         if (svs.threaded)
1319                 SV_StopThread();
1320
1321         // disconnect client from server if active
1322         CL_Disconnect();
1323
1324         // shut down local server if active
1325         SV_LockThreadMutex();
1326         Host_ShutdownServer ();
1327         SV_UnlockThreadMutex();
1328
1329         // Shutdown menu
1330         if(MR_Shutdown)
1331                 MR_Shutdown();
1332
1333         // AK shutdown PRVM
1334         // AK hmm, no PRVM_Shutdown(); yet
1335
1336         CL_Video_Shutdown();
1337
1338         Host_SaveConfig();
1339
1340         CDAudio_Shutdown ();
1341         S_Terminate ();
1342         Curl_Shutdown ();
1343         NetConn_Shutdown ();
1344         //PR_Shutdown ();
1345
1346         if (cls.state != ca_dedicated)
1347         {
1348                 R_Modules_Shutdown();
1349                 VID_Shutdown();
1350         }
1351
1352         SV_StopThread();
1353         Thread_Shutdown();
1354         Cmd_Shutdown();
1355         Key_Shutdown();
1356         CL_Shutdown();
1357         Sys_Shutdown();
1358         Log_Close();
1359         Crypto_Shutdown();
1360         FS_Shutdown();
1361         Con_Shutdown();
1362         Memory_Shutdown();
1363 }
1364