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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
671         Host_Init();
672
673         realtime = 0;
674         dirtytime = Sys_DirtyTime();
675         for (;;)
676         {
677                 if (setjmp(host_abortframe))
678                 {
679                         SCR_ClearLoadingScreen(false);
680                         continue;                       // something bad happened, or the server disconnected
681                 }
682
683                 olddirtytime = host_dirtytime;
684                 dirtytime = Sys_DirtyTime();
685                 deltacleantime = dirtytime - olddirtytime;
686                 if (deltacleantime < 0)
687                 {
688                         // warn if it's significant
689                         if (deltacleantime < -0.01)
690                                 Con_Printf("Host_Mingled: time stepped backwards (went from %f to %f, difference %f)\n", olddirtytime, dirtytime, deltacleantime);
691                         deltacleantime = 0;
692                 }
693                 else if (deltacleantime >= 1800)
694                 {
695                         Con_Printf("Host_Mingled: time stepped forward (went from %f to %f, difference %f)\n", olddirtytime, dirtytime, deltacleantime);
696                         deltacleantime = 0;
697                 }
698                 realtime += deltacleantime;
699                 host_dirtytime = dirtytime;
700
701                 cl_timer += deltacleantime;
702                 sv_timer += deltacleantime;
703
704                 if (!svs.threaded)
705                 {
706                         svs.perf_acc_realtime += deltacleantime;
707
708                         // Look for clients who have spawned
709                         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
710                                 if(host_client->spawned)
711                                         if(host_client->netconnection)
712                                                 break;
713                         if(i == svs.maxclients)
714                         {
715                                 // Nobody is looking? Then we won't do timing...
716                                 // Instead, reset it to zero
717                                 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;
718                         }
719                         else if(svs.perf_acc_realtime > 5)
720                         {
721                                 svs.perf_cpuload = 1 - svs.perf_acc_sleeptime / svs.perf_acc_realtime;
722                                 svs.perf_lost = svs.perf_acc_lost / svs.perf_acc_realtime;
723                                 if(svs.perf_acc_offset_samples > 0)
724                                 {
725                                         svs.perf_offset_max = svs.perf_acc_offset_max;
726                                         svs.perf_offset_avg = svs.perf_acc_offset / svs.perf_acc_offset_samples;
727                                         svs.perf_offset_sdev = sqrt(svs.perf_acc_offset_squared / svs.perf_acc_offset_samples - svs.perf_offset_avg * svs.perf_offset_avg);
728                                 }
729                                 if(svs.perf_lost > 0 && developer_extra.integer)
730                                         Con_DPrintf("Server can't keep up: %s\n", Host_TimingReport(vabuf, sizeof(vabuf)));
731                                 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;
732                         }
733                 }
734
735                 if (slowmo.value < 0.00001 && slowmo.value != 0)
736                         Cvar_SetValue("slowmo", 0);
737                 if (host_framerate.value < 0.00001 && host_framerate.value != 0)
738                         Cvar_SetValue("host_framerate", 0);
739
740                 // keep the random time dependent, but not when playing demos/benchmarking
741                 if(!*sv_random_seed.string && !cls.demoplayback)
742                         rand();
743
744                 // get new key events
745                 Key_EventQueue_Unblock();
746                 SndSys_SendKeyEvents();
747                 Sys_SendKeyEvents();
748
749                 NetConn_UpdateSockets();
750
751                 Log_DestBuffer_Flush();
752
753                 // receive packets on each main loop iteration, as the main loop may
754                 // be undersleeping due to select() detecting a new packet
755                 if (sv.active && !svs.threaded)
756                         NetConn_ServerFrame();
757
758                 Curl_Run();
759
760                 // check for commands typed to the host
761                 Host_GetConsoleCommands();
762
763                 // when a server is running we only execute console commands on server frames
764                 // (this mainly allows frikbot .way config files to work properly by staying in sync with the server qc)
765                 // otherwise we execute them on client frames
766                 if (sv.active ? sv_timer > 0 : cl_timer > 0)
767                 {
768                         // process console commands
769 //                      R_TimeReport("preconsole");
770                         CL_VM_PreventInformationLeaks();
771                         Cbuf_Frame();
772 //                      R_TimeReport("console");
773                 }
774
775                 //Con_Printf("%6.0f %6.0f\n", cl_timer * 1000000.0, sv_timer * 1000000.0);
776
777                 // if the accumulators haven't become positive yet, wait a while
778                 if (cls.state == ca_dedicated)
779                         wait = sv_timer * -1000000.0;
780                 else if (!sv.active || svs.threaded)
781                         wait = cl_timer * -1000000.0;
782                 else
783                         wait = max(cl_timer, sv_timer) * -1000000.0;
784
785                 if (!cls.timedemo && wait >= 1)
786                 {
787                         double time0, delta;
788
789                         if(host_maxwait.value <= 0)
790                                 wait = min(wait, 1000000.0);
791                         else
792                                 wait = min(wait, host_maxwait.value * 1000.0);
793                         if(wait < 1)
794                                 wait = 1; // because we cast to int
795
796                         time0 = Sys_DirtyTime();
797                         if (sv_checkforpacketsduringsleep.integer && !sys_usenoclockbutbenchmark.integer && !svs.threaded)
798                                 NetConn_SleepMicroseconds((int)wait);
799                         else
800                                 Sys_Sleep((int)wait);
801                         delta = Sys_DirtyTime() - time0;
802                         if (delta < 0 || delta >= 1800) delta = 0;
803                         if (!svs.threaded)
804                                 svs.perf_acc_sleeptime += delta;
805 //                      R_TimeReport("sleep");
806                         continue;
807                 }
808
809                 // limit the frametime steps to no more than 100ms each
810                 if (cl_timer > 0.1)
811                         cl_timer = 0.1;
812                 if (sv_timer > 0.1)
813                 {
814                         if (!svs.threaded)
815                                 svs.perf_acc_lost += (sv_timer - 0.1);
816                         sv_timer = 0.1;
817                 }
818
819                 R_TimeReport("---");
820
821         //-------------------
822         //
823         // server operations
824         //
825         //-------------------
826
827                 // limit the frametime steps to no more than 100ms each
828                 if (sv.active && sv_timer > 0 && !svs.threaded)
829                 {
830                         // execute one or more server frames, with an upper limit on how much
831                         // execution time to spend on server frames to avoid freezing the game if
832                         // the server is overloaded, this execution time limit means the game will
833                         // slow down if the server is taking too long.
834                         int framecount, framelimit = 1;
835                         double advancetime, aborttime = 0;
836                         float offset;
837                         prvm_prog_t *prog = SVVM_prog;
838
839                         // run the world state
840                         // don't allow simulation to run too fast or too slow or logic glitches can occur
841
842                         // stop running server frames if the wall time reaches this value
843                         if (sys_ticrate.value <= 0)
844                                 advancetime = sv_timer;
845                         else if (cl.islocalgame && !sv_fixedframeratesingleplayer.integer)
846                         {
847                                 // synchronize to the client frametime, but no less than 10ms and no more than 100ms
848                                 advancetime = bound(0.01, cl_timer, 0.1);
849                         }
850                         else
851                         {
852                                 advancetime = sys_ticrate.value;
853                                 // listen servers can run multiple server frames per client frame
854                                 framelimit = cl_maxphysicsframesperserverframe.integer;
855                                 aborttime = Sys_DirtyTime() + 0.1;
856                         }
857                         if(slowmo.value > 0 && slowmo.value < 1)
858                                 advancetime = min(advancetime, 0.1 / slowmo.value);
859                         else
860                                 advancetime = min(advancetime, 0.1);
861
862                         if(advancetime > 0)
863                         {
864                                 offset = Sys_DirtyTime() - dirtytime;if (offset < 0 || offset >= 1800) offset = 0;
865                                 offset += sv_timer;
866                                 ++svs.perf_acc_offset_samples;
867                                 svs.perf_acc_offset += offset;
868                                 svs.perf_acc_offset_squared += offset * offset;
869                                 if(svs.perf_acc_offset_max < offset)
870                                         svs.perf_acc_offset_max = offset;
871                         }
872
873                         // only advance time if not paused
874                         // the game also pauses in singleplayer when menu or console is used
875                         sv.frametime = advancetime * slowmo.value;
876                         if (host_framerate.value)
877                                 sv.frametime = host_framerate.value;
878                         if (sv.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive || cl.csqc_paused)))
879                                 sv.frametime = 0;
880
881                         for (framecount = 0;framecount < framelimit && sv_timer > 0;framecount++)
882                         {
883                                 sv_timer -= advancetime;
884
885                                 // move things around and think unless paused
886                                 if (sv.frametime)
887                                         SV_Physics();
888
889                                 // if this server frame took too long, break out of the loop
890                                 if (framelimit > 1 && Sys_DirtyTime() >= aborttime)
891                                         break;
892                         }
893                         R_TimeReport("serverphysics");
894
895                         // send all messages to the clients
896                         SV_SendClientMessages();
897
898                         if (sv.paused == 1 && realtime > sv.pausedstart && sv.pausedstart > 0) {
899                                 prog->globals.generic[OFS_PARM0] = realtime - sv.pausedstart;
900                                 PRVM_serverglobalfloat(time) = sv.time;
901                                 prog->ExecuteProgram(prog, PRVM_serverfunction(SV_PausedTic), "QC function SV_PausedTic is missing");
902                         }
903
904                         // send an heartbeat if enough time has passed since the last one
905                         NetConn_Heartbeat(0);
906                         R_TimeReport("servernetwork");
907                 }
908                 else if (!svs.threaded)
909                 {
910                         // don't let r_speeds display jump around
911                         R_TimeReport("serverphysics");
912                         R_TimeReport("servernetwork");
913                 }
914
915         //-------------------
916         //
917         // client operations
918         //
919         //-------------------
920
921                 if (cls.state != ca_dedicated && (cl_timer > 0 || cls.timedemo || ((vid_activewindow ? cl_maxfps : cl_maxidlefps).value < 1)))
922                 {
923                         R_TimeReport("---");
924                         Collision_Cache_NewFrame();
925                         R_TimeReport("collisioncache");
926                         // decide the simulation time
927                         if (cls.capturevideo.active)
928                         {
929                                 //***
930                                 if (cls.capturevideo.realtime)
931                                         clframetime = cl.realframetime = max(cl_timer, 1.0 / cls.capturevideo.framerate);
932                                 else
933                                 {
934                                         clframetime = 1.0 / cls.capturevideo.framerate;
935                                         cl.realframetime = max(cl_timer, clframetime);
936                                 }
937                         }
938                         else if (vid_activewindow && cl_maxfps.value >= 1 && !cls.timedemo)
939                         {
940                                 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxfps.value);
941                                 // when running slow, we need to sleep to keep input responsive
942                                 wait = bound(0, cl_maxfps_alwayssleep.value * 1000, 100000);
943                                 if (wait > 0)
944                                         Sys_Sleep((int)wait);
945                         }
946                         else if (!vid_activewindow && cl_maxidlefps.value >= 1 && !cls.timedemo)
947                                 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxidlefps.value);
948                         else
949                                 clframetime = cl.realframetime = cl_timer;
950
951                         // apply slowmo scaling
952                         clframetime *= cl.movevars_timescale;
953                         // scale playback speed of demos by slowmo cvar
954                         if (cls.demoplayback)
955                         {
956                                 clframetime *= slowmo.value;
957                                 // if demo playback is paused, don't advance time at all
958                                 if (cls.demopaused)
959                                         clframetime = 0;
960                         }
961
962                         // host_framerate overrides all else
963                         if (host_framerate.value)
964                                 clframetime = host_framerate.value;
965
966                         if (cl.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive || cl.csqc_paused)))
967                                 clframetime = 0;
968
969                         if (cls.timedemo)
970                                 clframetime = cl.realframetime = cl_timer;
971
972                         // deduct the frame time from the accumulator
973                         cl_timer -= cl.realframetime;
974
975                         cl.oldtime = cl.time;
976                         cl.time += clframetime;
977
978                         // update video
979                         if (host_speeds.integer)
980                                 time1 = Sys_DirtyTime();
981                         R_TimeReport("pre-input");
982
983                         // Collect input into cmd
984                         CL_Input();
985
986                         R_TimeReport("input");
987
988                         // check for new packets
989                         NetConn_ClientFrame();
990
991                         // read a new frame from a demo if needed
992                         CL_ReadDemoMessage();
993                         R_TimeReport("clientnetwork");
994
995                         // now that packets have been read, send input to server
996                         CL_SendMove();
997                         R_TimeReport("sendmove");
998
999                         // update client world (interpolate entities, create trails, etc)
1000                         CL_UpdateWorld();
1001                         R_TimeReport("lerpworld");
1002
1003                         CL_Video_Frame();
1004
1005                         R_TimeReport("client");
1006
1007                         CL_UpdateScreen();
1008                         R_TimeReport("render");
1009
1010                         if (host_speeds.integer)
1011                                 time2 = Sys_DirtyTime();
1012
1013                         // update audio
1014                         if(cl.csqc_usecsqclistener)
1015                         {
1016                                 S_Update(&cl.csqc_listenermatrix);
1017                                 cl.csqc_usecsqclistener = false;
1018                         }
1019                         else
1020                                 S_Update(&r_refdef.view.matrix);
1021
1022                         CDAudio_Update();
1023                         R_TimeReport("audio");
1024
1025                         // reset gathering of mouse input
1026                         in_mouse_x = in_mouse_y = 0;
1027
1028                         if (host_speeds.integer)
1029                         {
1030                                 pass1 = (int)((time1 - time3)*1000000);
1031                                 time3 = Sys_DirtyTime();
1032                                 pass2 = (int)((time2 - time1)*1000000);
1033                                 pass3 = (int)((time3 - time2)*1000000);
1034                                 Con_Printf("%6ius total %6ius server %6ius gfx %6ius snd\n",
1035                                                         pass1+pass2+pass3, pass1, pass2, pass3);
1036                         }
1037                 }
1038
1039 #if MEMPARANOIA
1040                 Mem_CheckSentinelsGlobal();
1041 #else
1042                 if (developer_memorydebug.integer)
1043                         Mem_CheckSentinelsGlobal();
1044 #endif
1045
1046                 // if there is some time remaining from this frame, reset the timers
1047                 if (cl_timer >= 0)
1048                         cl_timer = 0;
1049                 if (sv_timer >= 0)
1050                 {
1051                         if (!svs.threaded)
1052                                 svs.perf_acc_lost += sv_timer;
1053                         sv_timer = 0;
1054                 }
1055
1056                 host_framecount++;
1057         }
1058 }
1059
1060 //============================================================================
1061
1062 qboolean vid_opened = false;
1063 void Host_StartVideo(void)
1064 {
1065         if (!vid_opened && cls.state != ca_dedicated)
1066         {
1067                 vid_opened = true;
1068                 // make sure we open sockets before opening video because the Windows Firewall "unblock?" dialog can screw up the graphics context on some graphics drivers
1069                 NetConn_UpdateSockets();
1070                 VID_Start();
1071                 CDAudio_Startup();
1072         }
1073 }
1074
1075 char engineversion[128];
1076
1077 qboolean sys_nostdout = false;
1078
1079 extern qboolean host_stuffcmdsrun;
1080
1081 static qfile_t *locksession_fh = NULL;
1082 static qboolean locksession_run = false;
1083 static void Host_InitSession(void)
1084 {
1085         int i;
1086         Cvar_RegisterVariable(&sessionid);
1087         Cvar_RegisterVariable(&locksession);
1088
1089         // load the session ID into the read-only cvar
1090         if ((i = COM_CheckParm("-sessionid")) && (i + 1 < com_argc))
1091         {
1092                 char vabuf[1024];
1093                 if(com_argv[i+1][0] == '.')
1094                         Cvar_SetQuick(&sessionid, com_argv[i+1]);
1095                 else
1096                         Cvar_SetQuick(&sessionid, va(vabuf, sizeof(vabuf), ".%s", com_argv[i+1]));
1097         }
1098 }
1099 void Host_LockSession(void)
1100 {
1101         if(locksession_run)
1102                 return;
1103         locksession_run = true;
1104         if(locksession.integer != 0)
1105         {
1106                 char vabuf[1024];
1107                 char *p = va(vabuf, sizeof(vabuf), "%slock%s", *fs_userdir ? fs_userdir : fs_basedir, sessionid.string);
1108                 FS_CreatePath(p);
1109                 locksession_fh = FS_SysOpen(p, "wl", false);
1110                 // TODO maybe write the pid into the lockfile, while we are at it? may help server management tools
1111                 if(!locksession_fh)
1112                 {
1113                         if(locksession.integer == 2)
1114                         {
1115                                 Con_Printf("WARNING: session lock %s could not be acquired. Please run with -sessionid and an unique session name. Continuing anyway.\n", p);
1116                         }
1117                         else
1118                         {
1119                                 Sys_Error("session lock %s could not be acquired. Please run with -sessionid and an unique session name.\n", p);
1120                         }
1121                 }
1122         }
1123 }
1124 void Host_UnlockSession(void)
1125 {
1126         if(!locksession_run)
1127                 return;
1128         locksession_run = false;
1129
1130         if(locksession_fh)
1131         {
1132                 FS_Close(locksession_fh);
1133                 // NOTE: we can NOT unlink the lock here, as doing so would
1134                 // create a race condition if another process created it
1135                 // between our close and our unlink
1136                 locksession_fh = NULL;
1137         }
1138 }
1139
1140 /*
1141 ====================
1142 Host_Init
1143 ====================
1144 */
1145 static void Host_Init (void)
1146 {
1147         int i;
1148         const char* os;
1149         char vabuf[1024];
1150
1151         if (COM_CheckParm("-profilegameonly"))
1152                 Sys_AllowProfiling(false);
1153
1154         // LordHavoc: quake never seeded the random number generator before... heh
1155         if (COM_CheckParm("-benchmark"))
1156                 srand(0); // predictable random sequence for -benchmark
1157         else
1158                 srand((unsigned int)time(NULL));
1159
1160         // FIXME: this is evil, but possibly temporary
1161         // LordHavoc: doesn't seem very temporary...
1162         // LordHavoc: made this a saved cvar
1163 // COMMANDLINEOPTION: Console: -developer enables warnings and other notices (RECOMMENDED for mod developers)
1164         if (COM_CheckParm("-developer"))
1165         {
1166                 developer.value = developer.integer = 1;
1167                 developer.string = "1";
1168         }
1169
1170         if (COM_CheckParm("-developer2") || COM_CheckParm("-developer3"))
1171         {
1172                 developer.value = developer.integer = 1;
1173                 developer.string = "1";
1174                 developer_extra.value = developer_extra.integer = 1;
1175                 developer_extra.string = "1";
1176                 developer_insane.value = developer_insane.integer = 1;
1177                 developer_insane.string = "1";
1178                 developer_memory.value = developer_memory.integer = 1;
1179                 developer_memory.string = "1";
1180                 developer_memorydebug.value = developer_memorydebug.integer = 1;
1181                 developer_memorydebug.string = "1";
1182         }
1183
1184         if (COM_CheckParm("-developer3"))
1185         {
1186                 gl_paranoid.integer = 1;gl_paranoid.string = "1";
1187                 gl_printcheckerror.integer = 1;gl_printcheckerror.string = "1";
1188         }
1189
1190 // COMMANDLINEOPTION: Console: -nostdout disables text output to the terminal the game was launched from
1191         if (COM_CheckParm("-nostdout"))
1192                 sys_nostdout = 1;
1193
1194         // used by everything
1195         Memory_Init();
1196
1197         // initialize console command/cvar/alias/command execution systems
1198         Cmd_Init();
1199
1200         // initialize memory subsystem cvars/commands
1201         Memory_Init_Commands();
1202
1203         // initialize console and logging and its cvars/commands
1204         Con_Init();
1205
1206         // initialize various cvars that could not be initialized earlier
1207         u8_Init();
1208         Curl_Init_Commands();
1209         Cmd_Init_Commands();
1210         Sys_Init_Commands();
1211         COM_Init_Commands();
1212         FS_Init_Commands();
1213
1214         // initialize console window (only used by sys_win.c)
1215         Sys_InitConsole();
1216
1217         // initialize the self-pack (must be before COM_InitGameType as it may add command line options)
1218         FS_Init_SelfPack();
1219
1220         // detect gamemode from commandline options or executable name
1221         COM_InitGameType();
1222
1223         // construct a version string for the corner of the console
1224         os = DP_OS_NAME;
1225         dpsnprintf (engineversion, sizeof (engineversion), "%s %s %s", gamename, os, buildstring);
1226         Con_Printf("%s\n", engineversion);
1227
1228         // initialize process nice level
1229         Sys_InitProcessNice();
1230
1231         // initialize ixtable
1232         Mathlib_Init();
1233
1234         // initialize filesystem (including fs_basedir, fs_gamedir, -game, scr_screenshot_name)
1235         FS_Init();
1236
1237         // register the cvars for session locking
1238         Host_InitSession();
1239
1240         // must be after FS_Init
1241         Crypto_Init();
1242         Crypto_Init_Commands();
1243
1244         NetConn_Init();
1245         Curl_Init();
1246         //PR_Init();
1247         //PR_Cmd_Init();
1248         PRVM_Init();
1249         Mod_Init();
1250         World_Init();
1251         SV_Init();
1252         V_Init(); // some cvars needed by server player physics (cl_rollangle etc)
1253         Host_InitCommands();
1254         Host_InitLocal();
1255         Host_ServerOptions();
1256
1257         Thread_Init();
1258
1259         if (cls.state == ca_dedicated)
1260                 Cmd_AddCommand ("disconnect", CL_Disconnect_f, "disconnect from server (or disconnect all clients if running a server)");
1261         else
1262         {
1263                 Con_DPrintf("Initializing client\n");
1264
1265                 R_Modules_Init();
1266                 Palette_Init();
1267                 MR_Init_Commands();
1268                 VID_Shared_Init();
1269                 VID_Init();
1270                 Render_Init();
1271                 S_Init();
1272                 CDAudio_Init();
1273                 Key_Init();
1274                 CL_Init();
1275         }
1276
1277         // save off current state of aliases, commands and cvars for later restore if FS_GameDir_f is called
1278         // NOTE: menu commands are freed by Cmd_RestoreInitState
1279         Cmd_SaveInitState();
1280
1281         // FIXME: put this into some neat design, but the menu should be allowed to crash
1282         // without crashing the whole game, so this should just be a short-time solution
1283
1284         // here comes the not so critical stuff
1285         if (setjmp(host_abortframe)) {
1286                 return;
1287         }
1288
1289         Host_AddConfigText();
1290         Cbuf_Execute();
1291
1292         // if stuffcmds wasn't run, then quake.rc is probably missing, use default
1293         if (!host_stuffcmdsrun)
1294         {
1295                 Cbuf_AddText("exec default.cfg\nexec " CONFIGFILENAME "\nexec autoexec.cfg\nstuffcmds\n");
1296                 Cbuf_Execute();
1297         }
1298
1299         // put up the loading image so the user doesn't stare at a black screen...
1300         SCR_BeginLoadingPlaque();
1301
1302         if (cls.state != ca_dedicated)
1303         {
1304                 MR_Init();
1305         }
1306
1307         // check for special benchmark mode
1308 // 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)
1309         i = COM_CheckParm("-benchmark");
1310         if (i && i + 1 < com_argc)
1311         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1312         {
1313                 Cbuf_AddText(va(vabuf, sizeof(vabuf), "timedemo %s\n", com_argv[i + 1]));
1314                 Cbuf_Execute();
1315         }
1316
1317         // check for special demo mode
1318 // COMMANDLINEOPTION: Client: -demo <demoname> runs a playdemo and quits
1319         i = COM_CheckParm("-demo");
1320         if (i && i + 1 < com_argc)
1321         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1322         {
1323                 Cbuf_AddText(va(vabuf, sizeof(vabuf), "playdemo %s\n", com_argv[i + 1]));
1324                 Cbuf_Execute();
1325         }
1326
1327 // COMMANDLINEOPTION: Client: -capturedemo <demoname> captures a playdemo and quits
1328         i = COM_CheckParm("-capturedemo");
1329         if (i && i + 1 < com_argc)
1330         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1331         {
1332                 Cbuf_AddText(va(vabuf, sizeof(vabuf), "playdemo %s\ncl_capturevideo 1\n", com_argv[i + 1]));
1333                 Cbuf_Execute();
1334         }
1335
1336         if (cls.state == ca_dedicated || COM_CheckParm("-listen"))
1337         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1338         {
1339                 Cbuf_AddText("startmap_dm\n");
1340                 Cbuf_Execute();
1341         }
1342
1343         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1344         {
1345                 Cbuf_AddText("togglemenu\n");
1346                 Cbuf_Execute();
1347         }
1348
1349         Con_DPrint("========Initialized=========\n");
1350
1351         //Host_StartVideo();
1352
1353         if (cls.state != ca_dedicated)
1354                 SV_StartThread();
1355 }
1356
1357
1358 /*
1359 ===============
1360 Host_Shutdown
1361
1362 FIXME: this is a callback from Sys_Quit and Sys_Error.  It would be better
1363 to run quit through here before the final handoff to the sys code.
1364 ===============
1365 */
1366 void Host_Shutdown(void)
1367 {
1368         static qboolean isdown = false;
1369
1370         if (isdown)
1371         {
1372                 Con_Print("recursive shutdown\n");
1373                 return;
1374         }
1375         if (setjmp(host_abortframe))
1376         {
1377                 Con_Print("aborted the quitting frame?!?\n");
1378                 return;
1379         }
1380         isdown = true;
1381
1382         // be quiet while shutting down
1383         S_StopAllSounds();
1384
1385         // end the server thread
1386         if (svs.threaded)
1387                 SV_StopThread();
1388
1389         // disconnect client from server if active
1390         CL_Disconnect();
1391
1392         // shut down local server if active
1393         SV_LockThreadMutex();
1394         Host_ShutdownServer ();
1395         SV_UnlockThreadMutex();
1396
1397         // Shutdown menu
1398         if(MR_Shutdown)
1399                 MR_Shutdown();
1400
1401         // AK shutdown PRVM
1402         // AK hmm, no PRVM_Shutdown(); yet
1403
1404         CL_Video_Shutdown();
1405
1406         Host_SaveConfig();
1407
1408         CDAudio_Shutdown ();
1409         S_Terminate ();
1410         Curl_Shutdown ();
1411         NetConn_Shutdown ();
1412         //PR_Shutdown ();
1413
1414         if (cls.state != ca_dedicated)
1415         {
1416                 R_Modules_Shutdown();
1417                 VID_Shutdown();
1418         }
1419
1420         SV_StopThread();
1421         Thread_Shutdown();
1422         Cmd_Shutdown();
1423         Key_Shutdown();
1424         CL_Shutdown();
1425         Sys_Shutdown();
1426         Log_Close();
1427         Crypto_Shutdown();
1428
1429         Host_UnlockSession();
1430
1431         S_Shutdown();
1432         Con_Shutdown();
1433         Memory_Shutdown();
1434 }
1435