added PRVM_64 define which upgrades the QC VM to double precision
[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", "1", "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_qualitymultiply = {CVAR_SAVE, "cl_minfps_qualitymultiply", "0.2", "multiplier for quality changes in quality change per second render time (1 assumes linearity of quality and render time)"};
73 cvar_t cl_minfps_qualityhysteresis = {CVAR_SAVE, "cl_minfps_qualityhysteresis", "0.05", "reduce all quality increments by this to reduce flickering"};
74 cvar_t cl_minfps_qualitystepmax = {CVAR_SAVE, "cl_minfps_qualitystepmax", "0.1", "maximum quality change in a single frame"};
75 cvar_t cl_minfps_force = {0, "cl_minfps_force", "0", "also apply quality reductions in timedemo/capturevideo"};
76 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)"};
77 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"};
78 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"};
79
80 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"};
81 cvar_t developer_extra = {0, "developer_extra", "0", "prints additional debugging messages, often very verbose!"};
82 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!"};
83 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)"};
84 cvar_t developer_loading = {0, "developer_loading","0", "prints information about files as they are loaded or unloaded successfully"};
85 cvar_t developer_entityparsing = {0, "developer_entityparsing", "0", "prints detailed network entities information each time a packet is received"};
86
87 cvar_t timestamps = {CVAR_SAVE, "timestamps", "0", "prints timestamps on console messages"};
88 cvar_t timeformat = {CVAR_SAVE, "timeformat", "[%Y-%m-%d %H:%M:%S] ", "time format to use on timestamped console messages"};
89
90 cvar_t sessionid = {CVAR_READONLY, "sessionid", "", "ID of the current session (use the -sessionid parameter to set it); this is always either empty or begins with a dot (.)"};
91 cvar_t locksession = {0, "locksession", "0", "Lock the session? 0 = no, 1 = yes and abort on failure, 2 = yes and continue on failure"};
92
93 /*
94 ================
95 Host_AbortCurrentFrame
96
97 aborts the current host frame and goes on with the next one
98 ================
99 */
100 void Host_AbortCurrentFrame(void)
101 {
102         // in case we were previously nice, make us mean again
103         Sys_MakeProcessMean();
104
105         longjmp (host_abortframe, 1);
106 }
107
108 /*
109 ================
110 Host_Error
111
112 This shuts down both the client and server
113 ================
114 */
115 void Host_Error (const char *error, ...)
116 {
117         static char hosterrorstring1[MAX_INPUTLINE]; // THREAD UNSAFE
118         static char hosterrorstring2[MAX_INPUTLINE]; // THREAD UNSAFE
119         static qboolean hosterror = false;
120         va_list argptr;
121
122         // turn off rcon redirect if it was active when the crash occurred
123         // to prevent loops when it is a networking problem
124         Con_Rcon_Redirect_Abort();
125
126         va_start (argptr,error);
127         dpvsnprintf (hosterrorstring1,sizeof(hosterrorstring1),error,argptr);
128         va_end (argptr);
129
130         Con_Printf("Host_Error: %s\n", hosterrorstring1);
131
132         // LordHavoc: if crashing very early, or currently shutting down, do
133         // Sys_Error instead
134         if (host_framecount < 3 || host_shuttingdown)
135                 Sys_Error ("Host_Error: %s", hosterrorstring1);
136
137         if (hosterror)
138                 Sys_Error ("Host_Error: recursively entered (original error was: %s    new error is: %s)", hosterrorstring2, hosterrorstring1);
139         hosterror = true;
140
141         strlcpy(hosterrorstring2, hosterrorstring1, sizeof(hosterrorstring2));
142
143         CL_Parse_DumpPacket();
144
145         CL_Parse_ErrorCleanUp();
146
147         //PR_Crash();
148
149         // print out where the crash happened, if it was caused by QC (and do a cleanup)
150         PRVM_Crash(SVVM_prog);
151         PRVM_Crash(CLVM_prog);
152         PRVM_Crash(MVM_prog);
153
154         cl.csqc_loaded = false;
155         Cvar_SetValueQuick(&csqc_progcrc, -1);
156         Cvar_SetValueQuick(&csqc_progsize, -1);
157
158         SV_LockThreadMutex();
159         Host_ShutdownServer ();
160         SV_UnlockThreadMutex();
161
162         if (cls.state == ca_dedicated)
163                 Sys_Error ("Host_Error: %s",hosterrorstring2);  // dedicated servers exit
164
165         CL_Disconnect ();
166         cls.demonum = -1;
167
168         hosterror = false;
169
170         Host_AbortCurrentFrame();
171 }
172
173 static void Host_ServerOptions (void)
174 {
175         int i;
176
177         // general default
178         svs.maxclients = 8;
179
180 // COMMANDLINEOPTION: Server: -dedicated [playerlimit] starts a dedicated server (with a command console), default playerlimit is 8
181 // COMMANDLINEOPTION: Server: -listen [playerlimit] starts a multiplayer server with graphical client, like singleplayer but other players can connect, default playerlimit is 8
182         // if no client is in the executable or -dedicated is specified on
183         // commandline, start a dedicated server
184         i = COM_CheckParm ("-dedicated");
185         if (i || !cl_available)
186         {
187                 cls.state = ca_dedicated;
188                 // check for -dedicated specifying how many players
189                 if (i && i + 1 < com_argc && atoi (com_argv[i+1]) >= 1)
190                         svs.maxclients = atoi (com_argv[i+1]);
191                 if (COM_CheckParm ("-listen"))
192                         Con_Printf ("Only one of -dedicated or -listen can be specified\n");
193                 // default sv_public on for dedicated servers (often hosted by serious administrators), off for listen servers (often hosted by clueless users)
194                 Cvar_SetValue("sv_public", 1);
195         }
196         else if (cl_available)
197         {
198                 // client exists and not dedicated, check if -listen is specified
199                 cls.state = ca_disconnected;
200                 i = COM_CheckParm ("-listen");
201                 if (i)
202                 {
203                         // default players unless specified
204                         if (i + 1 < com_argc && atoi (com_argv[i+1]) >= 1)
205                                 svs.maxclients = atoi (com_argv[i+1]);
206                 }
207                 else
208                 {
209                         // default players in some games, singleplayer in most
210                         if (gamemode != GAME_GOODVSBAD2 && gamemode != GAME_NEXUIZ && gamemode != GAME_XONOTIC && gamemode != GAME_BATTLEMECH)
211                                 svs.maxclients = 1;
212                 }
213         }
214
215         svs.maxclients = svs.maxclients_next = bound(1, svs.maxclients, MAX_SCOREBOARD);
216
217         svs.clients = (client_t *)Mem_Alloc(sv_mempool, sizeof(client_t) * svs.maxclients);
218
219         if (svs.maxclients > 1 && !deathmatch.integer && !coop.integer)
220                 Cvar_SetValueQuick(&deathmatch, 1);
221 }
222
223 /*
224 =======================
225 Host_InitLocal
226 ======================
227 */
228 void Host_SaveConfig_f(void);
229 void Host_LoadConfig_f(void);
230 extern cvar_t sv_writepicture_quality;
231 extern cvar_t r_texture_jpeg_fastpicmip;
232 static void Host_InitLocal (void)
233 {
234         Cmd_AddCommand("saveconfig", Host_SaveConfig_f, "save settings to config.cfg (or a specified filename) immediately (also automatic when quitting)");
235         Cmd_AddCommand("loadconfig", Host_LoadConfig_f, "reset everything and reload configs");
236
237         Cvar_RegisterVariable (&cl_maxphysicsframesperserverframe);
238         Cvar_RegisterVariable (&host_framerate);
239         Cvar_RegisterVariable (&host_speeds);
240         Cvar_RegisterVariable (&host_maxwait);
241         Cvar_RegisterVariable (&cl_minfps);
242         Cvar_RegisterVariable (&cl_minfps_fade);
243         Cvar_RegisterVariable (&cl_minfps_qualitymax);
244         Cvar_RegisterVariable (&cl_minfps_qualitymin);
245         Cvar_RegisterVariable (&cl_minfps_qualitystepmax);
246         Cvar_RegisterVariable (&cl_minfps_qualityhysteresis);
247         Cvar_RegisterVariable (&cl_minfps_qualitymultiply);
248         Cvar_RegisterVariable (&cl_minfps_force);
249         Cvar_RegisterVariable (&cl_maxfps);
250         Cvar_RegisterVariable (&cl_maxfps_alwayssleep);
251         Cvar_RegisterVariable (&cl_maxidlefps);
252
253         Cvar_RegisterVariable (&developer);
254         Cvar_RegisterVariable (&developer_extra);
255         Cvar_RegisterVariable (&developer_insane);
256         Cvar_RegisterVariable (&developer_loadfile);
257         Cvar_RegisterVariable (&developer_loading);
258         Cvar_RegisterVariable (&developer_entityparsing);
259
260         Cvar_RegisterVariable (&timestamps);
261         Cvar_RegisterVariable (&timeformat);
262
263         Cvar_RegisterVariable (&sv_writepicture_quality);
264         Cvar_RegisterVariable (&r_texture_jpeg_fastpicmip);
265 }
266
267
268 /*
269 ===============
270 Host_SaveConfig_f
271
272 Writes key bindings and archived cvars to config.cfg
273 ===============
274 */
275 static void Host_SaveConfig_to(const char *file)
276 {
277         qfile_t *f;
278
279 // dedicated servers initialize the host but don't parse and set the
280 // config.cfg cvars
281         // LordHavoc: don't save a config if it crashed in startup
282         if (host_framecount >= 3 && cls.state != ca_dedicated && !COM_CheckParm("-benchmark") && !COM_CheckParm("-capturedemo"))
283         {
284                 f = FS_OpenRealFile(file, "wb", false);
285                 if (!f)
286                 {
287                         Con_Printf("Couldn't write %s.\n", file);
288                         return;
289                 }
290
291                 Key_WriteBindings (f);
292                 Cvar_WriteVariables (f);
293
294                 FS_Close (f);
295         }
296 }
297 void Host_SaveConfig(void)
298 {
299         Host_SaveConfig_to(CONFIGFILENAME);
300 }
301 void Host_SaveConfig_f(void)
302 {
303         const char *file = CONFIGFILENAME;
304
305         if(Cmd_Argc() >= 2) {
306                 file = Cmd_Argv(1);
307                 Con_Printf("Saving to %s\n", file);
308         }
309
310         Host_SaveConfig_to(file);
311 }
312
313 static void Host_AddConfigText(void)
314 {
315         // set up the default startmap_sp and startmap_dm aliases (mods can
316         // override these) and then execute the quake.rc startup script
317         if (gamemode == GAME_NEHAHRA)
318                 Cbuf_InsertText("alias startmap_sp \"map nehstart\"\nalias startmap_dm \"map nehstart\"\nexec " STARTCONFIGFILENAME "\n");
319         else if (gamemode == GAME_TRANSFUSION)
320                 Cbuf_InsertText("alias startmap_sp \"map e1m1\"\n""alias startmap_dm \"map bb1\"\nexec " STARTCONFIGFILENAME "\n");
321         else if (gamemode == GAME_TEU)
322                 Cbuf_InsertText("alias startmap_sp \"map start\"\nalias startmap_dm \"map start\"\nexec teu.rc\n");
323         else
324                 Cbuf_InsertText("alias startmap_sp \"map start\"\nalias startmap_dm \"map start\"\nexec " STARTCONFIGFILENAME "\n");
325 }
326
327 /*
328 ===============
329 Host_LoadConfig_f
330
331 Resets key bindings and cvars to defaults and then reloads scripts
332 ===============
333 */
334 void Host_LoadConfig_f(void)
335 {
336         // reset all cvars, commands and aliases to init values
337         Cmd_RestoreInitState();
338         // prepend a menu restart command to execute after the config
339         Cbuf_InsertText("\nmenu_restart\n");
340         // reset cvars to their defaults, and then exec startup scripts again
341         Host_AddConfigText();
342 }
343
344 /*
345 =================
346 SV_ClientPrint
347
348 Sends text across to be displayed
349 FIXME: make this just a stuffed echo?
350 =================
351 */
352 void SV_ClientPrint(const char *msg)
353 {
354         if (host_client->netconnection)
355         {
356                 MSG_WriteByte(&host_client->netconnection->message, svc_print);
357                 MSG_WriteString(&host_client->netconnection->message, msg);
358         }
359 }
360
361 /*
362 =================
363 SV_ClientPrintf
364
365 Sends text across to be displayed
366 FIXME: make this just a stuffed echo?
367 =================
368 */
369 void SV_ClientPrintf(const char *fmt, ...)
370 {
371         va_list argptr;
372         char msg[MAX_INPUTLINE];
373
374         va_start(argptr,fmt);
375         dpvsnprintf(msg,sizeof(msg),fmt,argptr);
376         va_end(argptr);
377
378         SV_ClientPrint(msg);
379 }
380
381 /*
382 =================
383 SV_BroadcastPrint
384
385 Sends text to all active clients
386 =================
387 */
388 void SV_BroadcastPrint(const char *msg)
389 {
390         int i;
391         client_t *client;
392
393         for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
394         {
395                 if (client->active && client->netconnection)
396                 {
397                         MSG_WriteByte(&client->netconnection->message, svc_print);
398                         MSG_WriteString(&client->netconnection->message, msg);
399                 }
400         }
401
402         if (sv_echobprint.integer && cls.state == ca_dedicated)
403                 Con_Print(msg);
404 }
405
406 /*
407 =================
408 SV_BroadcastPrintf
409
410 Sends text to all active clients
411 =================
412 */
413 void SV_BroadcastPrintf(const char *fmt, ...)
414 {
415         va_list argptr;
416         char msg[MAX_INPUTLINE];
417
418         va_start(argptr,fmt);
419         dpvsnprintf(msg,sizeof(msg),fmt,argptr);
420         va_end(argptr);
421
422         SV_BroadcastPrint(msg);
423 }
424
425 /*
426 =================
427 Host_ClientCommands
428
429 Send text over to the client to be executed
430 =================
431 */
432 void Host_ClientCommands(const char *fmt, ...)
433 {
434         va_list argptr;
435         char string[MAX_INPUTLINE];
436
437         if (!host_client->netconnection)
438                 return;
439
440         va_start(argptr,fmt);
441         dpvsnprintf(string, sizeof(string), fmt, argptr);
442         va_end(argptr);
443
444         MSG_WriteByte(&host_client->netconnection->message, svc_stufftext);
445         MSG_WriteString(&host_client->netconnection->message, string);
446 }
447
448 /*
449 =====================
450 SV_DropClient
451
452 Called when the player is getting totally kicked off the host
453 if (crash = true), don't bother sending signofs
454 =====================
455 */
456 void SV_DropClient(qboolean crash)
457 {
458         prvm_prog_t *prog = SVVM_prog;
459         int i;
460         Con_Printf("Client \"%s\" dropped\n", host_client->name);
461
462         SV_StopDemoRecording(host_client);
463
464         // make sure edict is not corrupt (from a level change for example)
465         host_client->edict = PRVM_EDICT_NUM(host_client - svs.clients + 1);
466
467         if (host_client->netconnection)
468         {
469                 // tell the client to be gone
470                 if (!crash)
471                 {
472                         // LordHavoc: no opportunity for resending, so use unreliable 3 times
473                         unsigned char bufdata[8];
474                         sizebuf_t buf;
475                         memset(&buf, 0, sizeof(buf));
476                         buf.data = bufdata;
477                         buf.maxsize = sizeof(bufdata);
478                         MSG_WriteByte(&buf, svc_disconnect);
479                         NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, false);
480                         NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, false);
481                         NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, false);
482                 }
483         }
484
485         // call qc ClientDisconnect function
486         // LordHavoc: don't call QC if server is dead (avoids recursive
487         // Host_Error in some mods when they run out of edicts)
488         if (host_client->clientconnectcalled && sv.active && host_client->edict)
489         {
490                 // call the prog function for removing a client
491                 // this will set the body to a dead frame, among other things
492                 int saveSelf = PRVM_serverglobaledict(self);
493                 host_client->clientconnectcalled = false;
494                 PRVM_serverglobalfloat(time) = sv.time;
495                 PRVM_serverglobaledict(self) = PRVM_EDICT_TO_PROG(host_client->edict);
496                 prog->ExecuteProgram(prog, PRVM_serverfunction(ClientDisconnect), "QC function ClientDisconnect is missing");
497                 PRVM_serverglobaledict(self) = saveSelf;
498         }
499
500         if (host_client->netconnection)
501         {
502                 // break the net connection
503                 NetConn_Close(host_client->netconnection);
504                 host_client->netconnection = NULL;
505         }
506
507         // if a download is active, close it
508         if (host_client->download_file)
509         {
510                 Con_DPrintf("Download of %s aborted when %s dropped\n", host_client->download_name, host_client->name);
511                 FS_Close(host_client->download_file);
512                 host_client->download_file = NULL;
513                 host_client->download_name[0] = 0;
514                 host_client->download_expectedposition = 0;
515                 host_client->download_started = false;
516         }
517
518         // remove leaving player from scoreboard
519         host_client->name[0] = 0;
520         host_client->colors = 0;
521         host_client->frags = 0;
522         // send notification to all clients
523         // get number of client manually just to make sure we get it right...
524         i = host_client - svs.clients;
525         MSG_WriteByte (&sv.reliable_datagram, svc_updatename);
526         MSG_WriteByte (&sv.reliable_datagram, i);
527         MSG_WriteString (&sv.reliable_datagram, host_client->name);
528         MSG_WriteByte (&sv.reliable_datagram, svc_updatecolors);
529         MSG_WriteByte (&sv.reliable_datagram, i);
530         MSG_WriteByte (&sv.reliable_datagram, host_client->colors);
531         MSG_WriteByte (&sv.reliable_datagram, svc_updatefrags);
532         MSG_WriteByte (&sv.reliable_datagram, i);
533         MSG_WriteShort (&sv.reliable_datagram, host_client->frags);
534
535         // free the client now
536         if (host_client->entitydatabase)
537                 EntityFrame_FreeDatabase(host_client->entitydatabase);
538         if (host_client->entitydatabase4)
539                 EntityFrame4_FreeDatabase(host_client->entitydatabase4);
540         if (host_client->entitydatabase5)
541                 EntityFrame5_FreeDatabase(host_client->entitydatabase5);
542
543         if (sv.active)
544         {
545                 // clear a fields that matter to DP_SV_CLIENTNAME and DP_SV_CLIENTCOLORS, and also frags
546                 PRVM_ED_ClearEdict(prog, host_client->edict);
547         }
548
549         // clear the client struct (this sets active to false)
550         memset(host_client, 0, sizeof(*host_client));
551
552         // update server listing on the master because player count changed
553         // (which the master uses for filtering empty/full servers)
554         NetConn_Heartbeat(1);
555
556         if (sv.loadgame)
557         {
558                 for (i = 0;i < svs.maxclients;i++)
559                         if (svs.clients[i].active && !svs.clients[i].spawned)
560                                 break;
561                 if (i == svs.maxclients)
562                 {
563                         Con_Printf("Loaded game, everyone rejoined - unpausing\n");
564                         sv.paused = sv.loadgame = false; // we're basically done with loading now
565                 }
566         }
567 }
568
569 /*
570 ==================
571 Host_ShutdownServer
572
573 This only happens at the end of a game, not between levels
574 ==================
575 */
576 void Host_ShutdownServer(void)
577 {
578         prvm_prog_t *prog = SVVM_prog;
579         int i;
580
581         Con_DPrintf("Host_ShutdownServer\n");
582
583         if (!sv.active)
584                 return;
585
586         NetConn_Heartbeat(2);
587         NetConn_Heartbeat(2);
588
589 // make sure all the clients know we're disconnecting
590         World_End(&sv.world);
591         if(prog->loaded)
592         {
593                 if(PRVM_serverfunction(SV_Shutdown))
594                 {
595                         func_t s = PRVM_serverfunction(SV_Shutdown);
596                         PRVM_serverglobalfloat(time) = sv.time;
597                         PRVM_serverfunction(SV_Shutdown) = 0; // prevent it from getting called again
598                         prog->ExecuteProgram(prog, s,"SV_Shutdown() required");
599                 }
600         }
601         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
602                 if (host_client->active)
603                         SV_DropClient(false); // server shutdown
604
605         NetConn_CloseServerPorts();
606
607         sv.active = false;
608 //
609 // clear structures
610 //
611         memset(&sv, 0, sizeof(sv));
612         memset(svs.clients, 0, svs.maxclients*sizeof(client_t));
613
614         cl.islocalgame = false;
615 }
616
617
618 //============================================================================
619
620 /*
621 ===================
622 Host_GetConsoleCommands
623
624 Add them exactly as if they had been typed at the console
625 ===================
626 */
627 static void Host_GetConsoleCommands (void)
628 {
629         char *cmd;
630
631         while (1)
632         {
633                 cmd = Sys_ConsoleInput ();
634                 if (!cmd)
635                         break;
636                 Cbuf_AddText (cmd);
637         }
638 }
639
640 /*
641 ==================
642 Host_TimeReport
643
644 Returns a time report string, for example for
645 ==================
646 */
647 const char *Host_TimingReport(char *buf, size_t buflen)
648 {
649         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);
650 }
651
652 /*
653 ==================
654 Host_Frame
655
656 Runs all active servers
657 ==================
658 */
659 static void Host_Init(void);
660 void Host_Main(void)
661 {
662         double time1 = 0;
663         double time2 = 0;
664         double time3 = 0;
665         double cl_timer = 0, sv_timer = 0;
666         double clframetime, deltacleantime, olddirtytime, dirtytime;
667         double wait;
668         int pass1, pass2, pass3, i;
669         char vabuf[1024];
670         qboolean playing;
671
672         Host_Init();
673
674         realtime = 0;
675         dirtytime = Sys_DirtyTime();
676         for (;;)
677         {
678                 if (setjmp(host_abortframe))
679                 {
680                         SCR_ClearLoadingScreen(false);
681                         continue;                       // something bad happened, or the server disconnected
682                 }
683
684                 olddirtytime = host_dirtytime;
685                 dirtytime = Sys_DirtyTime();
686                 deltacleantime = dirtytime - olddirtytime;
687                 if (deltacleantime < 0)
688                 {
689                         // warn if it's significant
690                         if (deltacleantime < -0.01)
691                                 Con_Printf("Host_Mingled: time stepped backwards (went from %f to %f, difference %f)\n", olddirtytime, dirtytime, deltacleantime);
692                         deltacleantime = 0;
693                 }
694                 else if (deltacleantime >= 1800)
695                 {
696                         Con_Printf("Host_Mingled: time stepped forward (went from %f to %f, difference %f)\n", olddirtytime, dirtytime, deltacleantime);
697                         deltacleantime = 0;
698                 }
699                 realtime += deltacleantime;
700                 host_dirtytime = dirtytime;
701
702                 cl_timer += deltacleantime;
703                 sv_timer += deltacleantime;
704
705                 if (!svs.threaded)
706                 {
707                         svs.perf_acc_realtime += deltacleantime;
708
709                         // Look for clients who have spawned
710                         playing = false;
711                         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
712                                 if(host_client->spawned)
713                                         if(host_client->netconnection)
714                                                 playing = true;
715                         if(sv.time < 10)
716                         {
717                                 // don't accumulate time for the first 10 seconds of a match
718                                 // so things can settle
719                                 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;
720                         }
721                         else if(svs.perf_acc_realtime > 5)
722                         {
723                                 svs.perf_cpuload = 1 - svs.perf_acc_sleeptime / svs.perf_acc_realtime;
724                                 svs.perf_lost = svs.perf_acc_lost / svs.perf_acc_realtime;
725                                 if(svs.perf_acc_offset_samples > 0)
726                                 {
727                                         svs.perf_offset_max = svs.perf_acc_offset_max;
728                                         svs.perf_offset_avg = svs.perf_acc_offset / svs.perf_acc_offset_samples;
729                                         svs.perf_offset_sdev = sqrt(svs.perf_acc_offset_squared / svs.perf_acc_offset_samples - svs.perf_offset_avg * svs.perf_offset_avg);
730                                 }
731                                 if(svs.perf_lost > 0 && developer_extra.integer)
732                                         if(playing) // only complain if anyone is looking
733                                                 Con_DPrintf("Server can't keep up: %s\n", Host_TimingReport(vabuf, sizeof(vabuf)));
734                                 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;
735                         }
736                 }
737
738                 if (slowmo.value < 0.00001 && slowmo.value != 0)
739                         Cvar_SetValue("slowmo", 0);
740                 if (host_framerate.value < 0.00001 && host_framerate.value != 0)
741                         Cvar_SetValue("host_framerate", 0);
742
743                 // keep the random time dependent, but not when playing demos/benchmarking
744                 if(!*sv_random_seed.string && !cls.demoplayback)
745                         rand();
746
747                 // get new key events
748                 Key_EventQueue_Unblock();
749                 SndSys_SendKeyEvents();
750                 Sys_SendKeyEvents();
751
752                 NetConn_UpdateSockets();
753
754                 Log_DestBuffer_Flush();
755
756                 // receive packets on each main loop iteration, as the main loop may
757                 // be undersleeping due to select() detecting a new packet
758                 if (sv.active && !svs.threaded)
759                         NetConn_ServerFrame();
760
761                 Curl_Run();
762
763                 // check for commands typed to the host
764                 Host_GetConsoleCommands();
765
766                 // when a server is running we only execute console commands on server frames
767                 // (this mainly allows frikbot .way config files to work properly by staying in sync with the server qc)
768                 // otherwise we execute them on client frames
769                 if (sv.active ? sv_timer > 0 : cl_timer > 0)
770                 {
771                         // process console commands
772 //                      R_TimeReport("preconsole");
773                         CL_VM_PreventInformationLeaks();
774                         Cbuf_Frame();
775 //                      R_TimeReport("console");
776                 }
777
778                 //Con_Printf("%6.0f %6.0f\n", cl_timer * 1000000.0, sv_timer * 1000000.0);
779
780                 // if the accumulators haven't become positive yet, wait a while
781                 if (cls.state == ca_dedicated)
782                         wait = sv_timer * -1000000.0;
783                 else if (!sv.active || svs.threaded)
784                         wait = cl_timer * -1000000.0;
785                 else
786                         wait = max(cl_timer, sv_timer) * -1000000.0;
787
788                 if (!cls.timedemo && wait >= 1)
789                 {
790                         double time0, delta;
791
792                         if(host_maxwait.value <= 0)
793                                 wait = min(wait, 1000000.0);
794                         else
795                                 wait = min(wait, host_maxwait.value * 1000.0);
796                         if(wait < 1)
797                                 wait = 1; // because we cast to int
798
799                         time0 = Sys_DirtyTime();
800                         if (sv_checkforpacketsduringsleep.integer && !sys_usenoclockbutbenchmark.integer && !svs.threaded)
801                                 NetConn_SleepMicroseconds((int)wait);
802                         else
803                                 Sys_Sleep((int)wait);
804                         delta = Sys_DirtyTime() - time0;
805                         if (delta < 0 || delta >= 1800) delta = 0;
806                         if (!svs.threaded)
807                                 svs.perf_acc_sleeptime += delta;
808 //                      R_TimeReport("sleep");
809                         continue;
810                 }
811
812                 // limit the frametime steps to no more than 100ms each
813                 if (cl_timer > 0.1)
814                         cl_timer = 0.1;
815                 if (sv_timer > 0.1)
816                 {
817                         if (!svs.threaded)
818                                 svs.perf_acc_lost += (sv_timer - 0.1);
819                         sv_timer = 0.1;
820                 }
821
822                 R_TimeReport("---");
823
824         //-------------------
825         //
826         // server operations
827         //
828         //-------------------
829
830                 // limit the frametime steps to no more than 100ms each
831                 if (sv.active && sv_timer > 0 && !svs.threaded)
832                 {
833                         // execute one or more server frames, with an upper limit on how much
834                         // execution time to spend on server frames to avoid freezing the game if
835                         // the server is overloaded, this execution time limit means the game will
836                         // slow down if the server is taking too long.
837                         int framecount, framelimit = 1;
838                         double advancetime, aborttime = 0;
839                         float offset;
840                         prvm_prog_t *prog = SVVM_prog;
841
842                         // run the world state
843                         // don't allow simulation to run too fast or too slow or logic glitches can occur
844
845                         // stop running server frames if the wall time reaches this value
846                         if (sys_ticrate.value <= 0)
847                                 advancetime = sv_timer;
848                         else if (cl.islocalgame && !sv_fixedframeratesingleplayer.integer)
849                         {
850                                 // synchronize to the client frametime, but no less than 10ms and no more than 100ms
851                                 advancetime = bound(0.01, cl_timer, 0.1);
852                         }
853                         else
854                         {
855                                 advancetime = sys_ticrate.value;
856                                 // listen servers can run multiple server frames per client frame
857                                 framelimit = cl_maxphysicsframesperserverframe.integer;
858                                 aborttime = Sys_DirtyTime() + 0.1;
859                         }
860                         if(slowmo.value > 0 && slowmo.value < 1)
861                                 advancetime = min(advancetime, 0.1 / slowmo.value);
862                         else
863                                 advancetime = min(advancetime, 0.1);
864
865                         if(advancetime > 0)
866                         {
867                                 offset = Sys_DirtyTime() - dirtytime;if (offset < 0 || offset >= 1800) offset = 0;
868                                 offset += sv_timer;
869                                 ++svs.perf_acc_offset_samples;
870                                 svs.perf_acc_offset += offset;
871                                 svs.perf_acc_offset_squared += offset * offset;
872                                 if(svs.perf_acc_offset_max < offset)
873                                         svs.perf_acc_offset_max = offset;
874                         }
875
876                         // only advance time if not paused
877                         // the game also pauses in singleplayer when menu or console is used
878                         sv.frametime = advancetime * slowmo.value;
879                         if (host_framerate.value)
880                                 sv.frametime = host_framerate.value;
881                         if (sv.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive || cl.csqc_paused)))
882                                 sv.frametime = 0;
883
884                         for (framecount = 0;framecount < framelimit && sv_timer > 0;framecount++)
885                         {
886                                 sv_timer -= advancetime;
887
888                                 // move things around and think unless paused
889                                 if (sv.frametime)
890                                         SV_Physics();
891
892                                 // if this server frame took too long, break out of the loop
893                                 if (framelimit > 1 && Sys_DirtyTime() >= aborttime)
894                                         break;
895                         }
896                         R_TimeReport("serverphysics");
897
898                         // send all messages to the clients
899                         SV_SendClientMessages();
900
901                         if (sv.paused == 1 && realtime > sv.pausedstart && sv.pausedstart > 0) {
902                                 prog->globals.fp[OFS_PARM0] = realtime - sv.pausedstart;
903                                 PRVM_serverglobalfloat(time) = sv.time;
904                                 prog->ExecuteProgram(prog, PRVM_serverfunction(SV_PausedTic), "QC function SV_PausedTic is missing");
905                         }
906
907                         // send an heartbeat if enough time has passed since the last one
908                         NetConn_Heartbeat(0);
909                         R_TimeReport("servernetwork");
910                 }
911                 else if (!svs.threaded)
912                 {
913                         // don't let r_speeds display jump around
914                         R_TimeReport("serverphysics");
915                         R_TimeReport("servernetwork");
916                 }
917
918         //-------------------
919         //
920         // client operations
921         //
922         //-------------------
923
924                 if (cls.state != ca_dedicated && (cl_timer > 0 || cls.timedemo || ((vid_activewindow ? cl_maxfps : cl_maxidlefps).value < 1)))
925                 {
926                         R_TimeReport("---");
927                         Collision_Cache_NewFrame();
928                         R_TimeReport("collisioncache");
929                         // decide the simulation time
930                         if (cls.capturevideo.active)
931                         {
932                                 //***
933                                 if (cls.capturevideo.realtime)
934                                         clframetime = cl.realframetime = max(cl_timer, 1.0 / cls.capturevideo.framerate);
935                                 else
936                                 {
937                                         clframetime = 1.0 / cls.capturevideo.framerate;
938                                         cl.realframetime = max(cl_timer, clframetime);
939                                 }
940                         }
941                         else if (vid_activewindow && cl_maxfps.value >= 1 && !cls.timedemo)
942                         {
943                                 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxfps.value);
944                                 // when running slow, we need to sleep to keep input responsive
945                                 wait = bound(0, cl_maxfps_alwayssleep.value * 1000, 100000);
946                                 if (wait > 0)
947                                         Sys_Sleep((int)wait);
948                         }
949                         else if (!vid_activewindow && cl_maxidlefps.value >= 1 && !cls.timedemo)
950                                 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxidlefps.value);
951                         else
952                                 clframetime = cl.realframetime = cl_timer;
953
954                         // apply slowmo scaling
955                         clframetime *= cl.movevars_timescale;
956                         // scale playback speed of demos by slowmo cvar
957                         if (cls.demoplayback)
958                         {
959                                 clframetime *= slowmo.value;
960                                 // if demo playback is paused, don't advance time at all
961                                 if (cls.demopaused)
962                                         clframetime = 0;
963                         }
964
965                         // host_framerate overrides all else
966                         if (host_framerate.value)
967                                 clframetime = host_framerate.value;
968
969                         if (cl.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive || cl.csqc_paused)))
970                                 clframetime = 0;
971
972                         if (cls.timedemo)
973                                 clframetime = cl.realframetime = cl_timer;
974
975                         // deduct the frame time from the accumulator
976                         cl_timer -= cl.realframetime;
977
978                         cl.oldtime = cl.time;
979                         cl.time += clframetime;
980
981                         // update video
982                         if (host_speeds.integer)
983                                 time1 = Sys_DirtyTime();
984                         R_TimeReport("pre-input");
985
986                         // Collect input into cmd
987                         CL_Input();
988
989                         R_TimeReport("input");
990
991                         // check for new packets
992                         NetConn_ClientFrame();
993
994                         // read a new frame from a demo if needed
995                         CL_ReadDemoMessage();
996                         R_TimeReport("clientnetwork");
997
998                         // now that packets have been read, send input to server
999                         CL_SendMove();
1000                         R_TimeReport("sendmove");
1001
1002                         // update client world (interpolate entities, create trails, etc)
1003                         CL_UpdateWorld();
1004                         R_TimeReport("lerpworld");
1005
1006                         CL_Video_Frame();
1007
1008                         R_TimeReport("client");
1009
1010                         CL_UpdateScreen();
1011                         R_TimeReport("render");
1012
1013                         if (host_speeds.integer)
1014                                 time2 = Sys_DirtyTime();
1015
1016                         // update audio
1017                         if(cl.csqc_usecsqclistener)
1018                         {
1019                                 S_Update(&cl.csqc_listenermatrix);
1020                                 cl.csqc_usecsqclistener = false;
1021                         }
1022                         else
1023                                 S_Update(&r_refdef.view.matrix);
1024
1025                         CDAudio_Update();
1026                         R_TimeReport("audio");
1027
1028                         // reset gathering of mouse input
1029                         in_mouse_x = in_mouse_y = 0;
1030
1031                         if (host_speeds.integer)
1032                         {
1033                                 pass1 = (int)((time1 - time3)*1000000);
1034                                 time3 = Sys_DirtyTime();
1035                                 pass2 = (int)((time2 - time1)*1000000);
1036                                 pass3 = (int)((time3 - time2)*1000000);
1037                                 Con_Printf("%6ius total %6ius server %6ius gfx %6ius snd\n",
1038                                                         pass1+pass2+pass3, pass1, pass2, pass3);
1039                         }
1040                 }
1041
1042 #if MEMPARANOIA
1043                 Mem_CheckSentinelsGlobal();
1044 #else
1045                 if (developer_memorydebug.integer)
1046                         Mem_CheckSentinelsGlobal();
1047 #endif
1048
1049                 // if there is some time remaining from this frame, reset the timers
1050                 if (cl_timer >= 0)
1051                         cl_timer = 0;
1052                 if (sv_timer >= 0)
1053                 {
1054                         if (!svs.threaded)
1055                                 svs.perf_acc_lost += sv_timer;
1056                         sv_timer = 0;
1057                 }
1058
1059                 host_framecount++;
1060         }
1061 }
1062
1063 //============================================================================
1064
1065 qboolean vid_opened = false;
1066 void Host_StartVideo(void)
1067 {
1068         if (!vid_opened && cls.state != ca_dedicated)
1069         {
1070                 vid_opened = true;
1071                 // make sure we open sockets before opening video because the Windows Firewall "unblock?" dialog can screw up the graphics context on some graphics drivers
1072                 NetConn_UpdateSockets();
1073                 VID_Start();
1074                 CDAudio_Startup();
1075         }
1076 }
1077
1078 char engineversion[128];
1079
1080 qboolean sys_nostdout = false;
1081
1082 extern qboolean host_stuffcmdsrun;
1083
1084 static qfile_t *locksession_fh = NULL;
1085 static qboolean locksession_run = false;
1086 static void Host_InitSession(void)
1087 {
1088         int i;
1089         Cvar_RegisterVariable(&sessionid);
1090         Cvar_RegisterVariable(&locksession);
1091
1092         // load the session ID into the read-only cvar
1093         if ((i = COM_CheckParm("-sessionid")) && (i + 1 < com_argc))
1094         {
1095                 char vabuf[1024];
1096                 if(com_argv[i+1][0] == '.')
1097                         Cvar_SetQuick(&sessionid, com_argv[i+1]);
1098                 else
1099                         Cvar_SetQuick(&sessionid, va(vabuf, sizeof(vabuf), ".%s", com_argv[i+1]));
1100         }
1101 }
1102 void Host_LockSession(void)
1103 {
1104         if(locksession_run)
1105                 return;
1106         locksession_run = true;
1107         if(locksession.integer != 0)
1108         {
1109                 char vabuf[1024];
1110                 char *p = va(vabuf, sizeof(vabuf), "%slock%s", *fs_userdir ? fs_userdir : fs_basedir, sessionid.string);
1111                 FS_CreatePath(p);
1112                 locksession_fh = FS_SysOpen(p, "wl", false);
1113                 // TODO maybe write the pid into the lockfile, while we are at it? may help server management tools
1114                 if(!locksession_fh)
1115                 {
1116                         if(locksession.integer == 2)
1117                         {
1118                                 Con_Printf("WARNING: session lock %s could not be acquired. Please run with -sessionid and an unique session name. Continuing anyway.\n", p);
1119                         }
1120                         else
1121                         {
1122                                 Sys_Error("session lock %s could not be acquired. Please run with -sessionid and an unique session name.\n", p);
1123                         }
1124                 }
1125         }
1126 }
1127 void Host_UnlockSession(void)
1128 {
1129         if(!locksession_run)
1130                 return;
1131         locksession_run = false;
1132
1133         if(locksession_fh)
1134         {
1135                 FS_Close(locksession_fh);
1136                 // NOTE: we can NOT unlink the lock here, as doing so would
1137                 // create a race condition if another process created it
1138                 // between our close and our unlink
1139                 locksession_fh = NULL;
1140         }
1141 }
1142
1143 /*
1144 ====================
1145 Host_Init
1146 ====================
1147 */
1148 static void Host_Init (void)
1149 {
1150         int i;
1151         const char* os;
1152         char vabuf[1024];
1153
1154         if (COM_CheckParm("-profilegameonly"))
1155                 Sys_AllowProfiling(false);
1156
1157         // LordHavoc: quake never seeded the random number generator before... heh
1158         if (COM_CheckParm("-benchmark"))
1159                 srand(0); // predictable random sequence for -benchmark
1160         else
1161                 srand((unsigned int)time(NULL));
1162
1163         // FIXME: this is evil, but possibly temporary
1164         // LordHavoc: doesn't seem very temporary...
1165         // LordHavoc: made this a saved cvar
1166 // COMMANDLINEOPTION: Console: -developer enables warnings and other notices (RECOMMENDED for mod developers)
1167         if (COM_CheckParm("-developer"))
1168         {
1169                 developer.value = developer.integer = 1;
1170                 developer.string = "1";
1171         }
1172
1173         if (COM_CheckParm("-developer2") || COM_CheckParm("-developer3"))
1174         {
1175                 developer.value = developer.integer = 1;
1176                 developer.string = "1";
1177                 developer_extra.value = developer_extra.integer = 1;
1178                 developer_extra.string = "1";
1179                 developer_insane.value = developer_insane.integer = 1;
1180                 developer_insane.string = "1";
1181                 developer_memory.value = developer_memory.integer = 1;
1182                 developer_memory.string = "1";
1183                 developer_memorydebug.value = developer_memorydebug.integer = 1;
1184                 developer_memorydebug.string = "1";
1185         }
1186
1187         if (COM_CheckParm("-developer3"))
1188         {
1189                 gl_paranoid.integer = 1;gl_paranoid.string = "1";
1190                 gl_printcheckerror.integer = 1;gl_printcheckerror.string = "1";
1191         }
1192
1193 // COMMANDLINEOPTION: Console: -nostdout disables text output to the terminal the game was launched from
1194         if (COM_CheckParm("-nostdout"))
1195                 sys_nostdout = 1;
1196
1197         // used by everything
1198         Memory_Init();
1199
1200         // initialize console command/cvar/alias/command execution systems
1201         Cmd_Init();
1202
1203         // initialize memory subsystem cvars/commands
1204         Memory_Init_Commands();
1205
1206         // initialize console and logging and its cvars/commands
1207         Con_Init();
1208
1209         // initialize various cvars that could not be initialized earlier
1210         u8_Init();
1211         Curl_Init_Commands();
1212         Cmd_Init_Commands();
1213         Sys_Init_Commands();
1214         COM_Init_Commands();
1215         FS_Init_Commands();
1216
1217         // initialize console window (only used by sys_win.c)
1218         Sys_InitConsole();
1219
1220         // initialize the self-pack (must be before COM_InitGameType as it may add command line options)
1221         FS_Init_SelfPack();
1222
1223         // detect gamemode from commandline options or executable name
1224         COM_InitGameType();
1225
1226         // construct a version string for the corner of the console
1227         os = DP_OS_NAME;
1228         dpsnprintf (engineversion, sizeof (engineversion), "%s %s %s", gamename, os, buildstring);
1229         Con_Printf("%s\n", engineversion);
1230
1231         // initialize process nice level
1232         Sys_InitProcessNice();
1233
1234         // initialize ixtable
1235         Mathlib_Init();
1236
1237         // initialize filesystem (including fs_basedir, fs_gamedir, -game, scr_screenshot_name)
1238         FS_Init();
1239
1240         // register the cvars for session locking
1241         Host_InitSession();
1242
1243         // must be after FS_Init
1244         Crypto_Init();
1245         Crypto_Init_Commands();
1246
1247         NetConn_Init();
1248         Curl_Init();
1249         //PR_Init();
1250         //PR_Cmd_Init();
1251         PRVM_Init();
1252         Mod_Init();
1253         World_Init();
1254         SV_Init();
1255         V_Init(); // some cvars needed by server player physics (cl_rollangle etc)
1256         Host_InitCommands();
1257         Host_InitLocal();
1258         Host_ServerOptions();
1259
1260         Thread_Init();
1261
1262         if (cls.state == ca_dedicated)
1263                 Cmd_AddCommand ("disconnect", CL_Disconnect_f, "disconnect from server (or disconnect all clients if running a server)");
1264         else
1265         {
1266                 Con_DPrintf("Initializing client\n");
1267
1268                 R_Modules_Init();
1269                 Palette_Init();
1270                 MR_Init_Commands();
1271                 VID_Shared_Init();
1272                 VID_Init();
1273                 Render_Init();
1274                 S_Init();
1275                 CDAudio_Init();
1276                 Key_Init();
1277                 CL_Init();
1278         }
1279
1280         // save off current state of aliases, commands and cvars for later restore if FS_GameDir_f is called
1281         // NOTE: menu commands are freed by Cmd_RestoreInitState
1282         Cmd_SaveInitState();
1283
1284         // FIXME: put this into some neat design, but the menu should be allowed to crash
1285         // without crashing the whole game, so this should just be a short-time solution
1286
1287         // here comes the not so critical stuff
1288         if (setjmp(host_abortframe)) {
1289                 return;
1290         }
1291
1292         Host_AddConfigText();
1293         Cbuf_Execute();
1294
1295         // if stuffcmds wasn't run, then quake.rc is probably missing, use default
1296         if (!host_stuffcmdsrun)
1297         {
1298                 Cbuf_AddText("exec default.cfg\nexec " CONFIGFILENAME "\nexec autoexec.cfg\nstuffcmds\n");
1299                 Cbuf_Execute();
1300         }
1301
1302         // put up the loading image so the user doesn't stare at a black screen...
1303         SCR_BeginLoadingPlaque(true);
1304
1305         if (cls.state != ca_dedicated)
1306         {
1307                 MR_Init();
1308         }
1309
1310         // check for special benchmark mode
1311 // 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)
1312         i = COM_CheckParm("-benchmark");
1313         if (i && i + 1 < com_argc)
1314         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1315         {
1316                 Cbuf_AddText(va(vabuf, sizeof(vabuf), "timedemo %s\n", com_argv[i + 1]));
1317                 Cbuf_Execute();
1318         }
1319
1320         // check for special demo mode
1321 // COMMANDLINEOPTION: Client: -demo <demoname> runs a playdemo and quits
1322         i = COM_CheckParm("-demo");
1323         if (i && i + 1 < com_argc)
1324         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1325         {
1326                 Cbuf_AddText(va(vabuf, sizeof(vabuf), "playdemo %s\n", com_argv[i + 1]));
1327                 Cbuf_Execute();
1328         }
1329
1330 // COMMANDLINEOPTION: Client: -capturedemo <demoname> captures a playdemo and quits
1331         i = COM_CheckParm("-capturedemo");
1332         if (i && i + 1 < com_argc)
1333         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1334         {
1335                 Cbuf_AddText(va(vabuf, sizeof(vabuf), "playdemo %s\ncl_capturevideo 1\n", com_argv[i + 1]));
1336                 Cbuf_Execute();
1337         }
1338
1339         if (cls.state == ca_dedicated || COM_CheckParm("-listen"))
1340         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1341         {
1342                 Cbuf_AddText("startmap_dm\n");
1343                 Cbuf_Execute();
1344         }
1345
1346         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1347         {
1348                 Cbuf_AddText("togglemenu 1\n");
1349                 Cbuf_Execute();
1350         }
1351
1352         Con_DPrint("========Initialized=========\n");
1353
1354         //Host_StartVideo();
1355
1356         if (cls.state != ca_dedicated)
1357                 SV_StartThread();
1358 }
1359
1360
1361 /*
1362 ===============
1363 Host_Shutdown
1364
1365 FIXME: this is a callback from Sys_Quit and Sys_Error.  It would be better
1366 to run quit through here before the final handoff to the sys code.
1367 ===============
1368 */
1369 void Host_Shutdown(void)
1370 {
1371         static qboolean isdown = false;
1372
1373         if (isdown)
1374         {
1375                 Con_Print("recursive shutdown\n");
1376                 return;
1377         }
1378         if (setjmp(host_abortframe))
1379         {
1380                 Con_Print("aborted the quitting frame?!?\n");
1381                 return;
1382         }
1383         isdown = true;
1384
1385         // be quiet while shutting down
1386         S_StopAllSounds();
1387
1388         // end the server thread
1389         if (svs.threaded)
1390                 SV_StopThread();
1391
1392         // disconnect client from server if active
1393         CL_Disconnect();
1394
1395         // shut down local server if active
1396         SV_LockThreadMutex();
1397         Host_ShutdownServer ();
1398         SV_UnlockThreadMutex();
1399
1400         // Shutdown menu
1401         if(MR_Shutdown)
1402                 MR_Shutdown();
1403
1404         // AK shutdown PRVM
1405         // AK hmm, no PRVM_Shutdown(); yet
1406
1407         CL_Video_Shutdown();
1408
1409         Host_SaveConfig();
1410
1411         CDAudio_Shutdown ();
1412         S_Terminate ();
1413         Curl_Shutdown ();
1414         NetConn_Shutdown ();
1415         //PR_Shutdown ();
1416
1417         if (cls.state != ca_dedicated)
1418         {
1419                 R_Modules_Shutdown();
1420                 VID_Shutdown();
1421         }
1422
1423         SV_StopThread();
1424         Thread_Shutdown();
1425         Cmd_Shutdown();
1426         Key_Shutdown();
1427         CL_Shutdown();
1428         Sys_Shutdown();
1429         Log_Close();
1430         Crypto_Shutdown();
1431
1432         Host_UnlockSession();
1433
1434         S_Shutdown();
1435         Con_Shutdown();
1436         Memory_Shutdown();
1437 }
1438