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