a54067af5250d3d20aaba69fe285f418f5a3e019
[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 #ifdef CONFIG_CD
27 #include "cdaudio.h"
28 #endif
29 #include "cl_video.h"
30 #include "progsvm.h"
31 #include "csprogs.h"
32 #include "sv_demo.h"
33 #include "snd_main.h"
34 #include "thread.h"
35 #include "utf8lib.h"
36
37 /*
38
39 A server can always be started, even if the system started out as a client
40 to a remote system.
41
42 A client can NOT be started if the system started as a dedicated server.
43
44 Memory is cleared / released when a server or client begins, not when they end.
45
46 */
47
48 // how many frames have occurred
49 // (checked by Host_Error and Host_SaveConfig_f)
50 int host_framecount = 0;
51 // LordHavoc: set when quit is executed
52 qboolean host_shuttingdown = false;
53
54 // the accumulated mainloop time since application started (with filtering), without any slowmo or clamping
55 double realtime;
56 // the main loop wall time for this frame
57 double host_dirtytime;
58
59 // current client
60 client_t *host_client;
61
62 jmp_buf host_abortframe;
63
64 // pretend frames take this amount of time (in seconds), 0 = realtime
65 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"};
66 cvar_t cl_maxphysicsframesperserverframe = {0, "cl_maxphysicsframesperserverframe","10", "maximum number of physics frames per server frame"};
67 // shows time used by certain subsystems
68 cvar_t host_speeds = {0, "host_speeds","0", "reports how much time is used in server/graphics/sound"};
69 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."};
70 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"};
71 cvar_t cl_minfps_fade = {CVAR_SAVE, "cl_minfps_fade", "1", "how fast the quality adapts to varying framerate"};
72 cvar_t cl_minfps_qualitymax = {CVAR_SAVE, "cl_minfps_qualitymax", "1", "highest allowed drawdistance multiplier"};
73 cvar_t cl_minfps_qualitymin = {CVAR_SAVE, "cl_minfps_qualitymin", "0.25", "lowest allowed drawdistance multiplier"};
74 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)"};
75 cvar_t cl_minfps_qualityhysteresis = {CVAR_SAVE, "cl_minfps_qualityhysteresis", "0.05", "reduce all quality increments by this to reduce flickering"};
76 cvar_t cl_minfps_qualitystepmax = {CVAR_SAVE, "cl_minfps_qualitystepmax", "0.1", "maximum quality change in a single frame"};
77 cvar_t cl_minfps_force = {0, "cl_minfps_force", "0", "also apply quality reductions in timedemo/capturevideo"};
78 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)"};
79 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"};
80 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"};
81
82 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"};
83 cvar_t developer_extra = {0, "developer_extra", "0", "prints additional debugging messages, often very verbose!"};
84 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!"};
85 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)"};
86 cvar_t developer_loading = {0, "developer_loading","0", "prints information about files as they are loaded or unloaded successfully"};
87 cvar_t developer_entityparsing = {0, "developer_entityparsing", "0", "prints detailed network entities information each time a packet is received"};
88
89 cvar_t timestamps = {CVAR_SAVE, "timestamps", "0", "prints timestamps on console messages"};
90 cvar_t timeformat = {CVAR_SAVE, "timeformat", "[%Y-%m-%d %H:%M:%S] ", "time format to use on timestamped console messages"};
91
92 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 (.)"};
93 cvar_t locksession = {0, "locksession", "0", "Lock the session? 0 = no, 1 = yes and abort on failure, 2 = yes and continue on failure"};
94
95 /*
96 ================
97 Host_AbortCurrentFrame
98
99 aborts the current host frame and goes on with the next one
100 ================
101 */
102 void Host_AbortCurrentFrame(void) DP_FUNC_NORETURN;
103 void Host_AbortCurrentFrame(void)
104 {
105         // in case we were previously nice, make us mean again
106         Sys_MakeProcessMean();
107
108         longjmp (host_abortframe, 1);
109 }
110
111 /*
112 ================
113 Host_Error
114
115 This shuts down both the client and server
116 ================
117 */
118 void Host_Error (const char *error, ...)
119 {
120         static char hosterrorstring1[MAX_INPUTLINE]; // THREAD UNSAFE
121         static char hosterrorstring2[MAX_INPUTLINE]; // THREAD UNSAFE
122         static qboolean hosterror = false;
123         va_list argptr;
124
125         // turn off rcon redirect if it was active when the crash occurred
126         // to prevent loops when it is a networking problem
127         Con_Rcon_Redirect_Abort();
128
129         va_start (argptr,error);
130         dpvsnprintf (hosterrorstring1,sizeof(hosterrorstring1),error,argptr);
131         va_end (argptr);
132
133         Con_Printf("Host_Error: %s\n", hosterrorstring1);
134
135         // LordHavoc: if crashing very early, or currently shutting down, do
136         // Sys_Error instead
137         if (host_framecount < 3 || host_shuttingdown)
138                 Sys_Error ("Host_Error: %s", hosterrorstring1);
139
140         if (hosterror)
141                 Sys_Error ("Host_Error: recursively entered (original error was: %s    new error is: %s)", hosterrorstring2, hosterrorstring1);
142         hosterror = true;
143
144         strlcpy(hosterrorstring2, hosterrorstring1, sizeof(hosterrorstring2));
145
146         CL_Parse_DumpPacket();
147
148         CL_Parse_ErrorCleanUp();
149
150         //PR_Crash();
151
152         // print out where the crash happened, if it was caused by QC (and do a cleanup)
153         PRVM_Crash(SVVM_prog);
154         PRVM_Crash(CLVM_prog);
155 #ifdef CONFIG_MENU
156         PRVM_Crash(MVM_prog);
157 #endif
158
159         cl.csqc_loaded = false;
160         Cvar_SetValueQuick(&csqc_progcrc, -1);
161         Cvar_SetValueQuick(&csqc_progsize, -1);
162
163         SV_LockThreadMutex();
164         Host_ShutdownServer ();
165         SV_UnlockThreadMutex();
166
167         if (cls.state == ca_dedicated)
168                 Sys_Error ("Host_Error: %s",hosterrorstring2);  // dedicated servers exit
169
170         CL_Disconnect ();
171         cls.demonum = -1;
172
173         hosterror = false;
174
175         Host_AbortCurrentFrame();
176 }
177
178 static void Host_ServerOptions (void)
179 {
180         int i;
181
182         // general default
183         svs.maxclients = 8;
184
185 // COMMANDLINEOPTION: Server: -dedicated [playerlimit] starts a dedicated server (with a command console), default playerlimit is 8
186 // COMMANDLINEOPTION: Server: -listen [playerlimit] starts a multiplayer server with graphical client, like singleplayer but other players can connect, default playerlimit is 8
187         // if no client is in the executable or -dedicated is specified on
188         // commandline, start a dedicated server
189         i = COM_CheckParm ("-dedicated");
190         if (i || !cl_available)
191         {
192                 cls.state = ca_dedicated;
193                 // check for -dedicated specifying how many players
194                 if (i && i + 1 < com_argc && atoi (com_argv[i+1]) >= 1)
195                         svs.maxclients = atoi (com_argv[i+1]);
196                 if (COM_CheckParm ("-listen"))
197                         Con_Printf ("Only one of -dedicated or -listen can be specified\n");
198                 // default sv_public on for dedicated servers (often hosted by serious administrators), off for listen servers (often hosted by clueless users)
199                 Cvar_SetValue("sv_public", 1);
200         }
201         else if (cl_available)
202         {
203                 // client exists and not dedicated, check if -listen is specified
204                 cls.state = ca_disconnected;
205                 i = COM_CheckParm ("-listen");
206                 if (i)
207                 {
208                         // default players unless specified
209                         if (i + 1 < com_argc && atoi (com_argv[i+1]) >= 1)
210                                 svs.maxclients = atoi (com_argv[i+1]);
211                 }
212                 else
213                 {
214                         // default players in some games, singleplayer in most
215                         if (gamemode != GAME_GOODVSBAD2 && gamemode != GAME_NEXUIZ && gamemode != GAME_XONOTIC && gamemode != GAME_BATTLEMECH)
216                                 svs.maxclients = 1;
217                 }
218         }
219
220         svs.maxclients = svs.maxclients_next = bound(1, svs.maxclients, MAX_SCOREBOARD);
221
222         svs.clients = (client_t *)Mem_Alloc(sv_mempool, sizeof(client_t) * svs.maxclients);
223
224         if (svs.maxclients > 1 && !deathmatch.integer && !coop.integer)
225                 Cvar_SetValueQuick(&deathmatch, 1);
226 }
227
228 /*
229 =======================
230 Host_InitLocal
231 ======================
232 */
233 void Host_SaveConfig_f(void);
234 void Host_LoadConfig_f(void);
235 extern cvar_t sv_writepicture_quality;
236 extern cvar_t r_texture_jpeg_fastpicmip;
237 static void Host_InitLocal (void)
238 {
239         Cmd_AddCommand("saveconfig", Host_SaveConfig_f, "save settings to config.cfg (or a specified filename) immediately (also automatic when quitting)");
240         Cmd_AddCommand("loadconfig", Host_LoadConfig_f, "reset everything and reload configs");
241
242         Cvar_RegisterVariable (&cl_maxphysicsframesperserverframe);
243         Cvar_RegisterVariable (&host_framerate);
244         Cvar_RegisterVariable (&host_speeds);
245         Cvar_RegisterVariable (&host_maxwait);
246         Cvar_RegisterVariable (&cl_minfps);
247         Cvar_RegisterVariable (&cl_minfps_fade);
248         Cvar_RegisterVariable (&cl_minfps_qualitymax);
249         Cvar_RegisterVariable (&cl_minfps_qualitymin);
250         Cvar_RegisterVariable (&cl_minfps_qualitystepmax);
251         Cvar_RegisterVariable (&cl_minfps_qualityhysteresis);
252         Cvar_RegisterVariable (&cl_minfps_qualitymultiply);
253         Cvar_RegisterVariable (&cl_minfps_force);
254         Cvar_RegisterVariable (&cl_maxfps);
255         Cvar_RegisterVariable (&cl_maxfps_alwayssleep);
256         Cvar_RegisterVariable (&cl_maxidlefps);
257
258         Cvar_RegisterVariable (&developer);
259         Cvar_RegisterVariable (&developer_extra);
260         Cvar_RegisterVariable (&developer_insane);
261         Cvar_RegisterVariable (&developer_loadfile);
262         Cvar_RegisterVariable (&developer_loading);
263         Cvar_RegisterVariable (&developer_entityparsing);
264
265         Cvar_RegisterVariable (&timestamps);
266         Cvar_RegisterVariable (&timeformat);
267
268         Cvar_RegisterVariable (&sv_writepicture_quality);
269         Cvar_RegisterVariable (&r_texture_jpeg_fastpicmip);
270 }
271
272
273 /*
274 ===============
275 Host_SaveConfig_f
276
277 Writes key bindings and archived cvars to config.cfg
278 ===============
279 */
280 static void Host_SaveConfig_to(const char *file)
281 {
282         qfile_t *f;
283
284 // dedicated servers initialize the host but don't parse and set the
285 // config.cfg cvars
286         // LordHavoc: don't save a config if it crashed in startup
287         if (host_framecount >= 3 && cls.state != ca_dedicated && !COM_CheckParm("-benchmark") && !COM_CheckParm("-capturedemo"))
288         {
289                 f = FS_OpenRealFile(file, "wb", false);
290                 if (!f)
291                 {
292                         Con_Printf("Couldn't write %s.\n", file);
293                         return;
294                 }
295
296                 Key_WriteBindings (f);
297                 Cvar_WriteVariables (f);
298
299                 FS_Close (f);
300         }
301 }
302 void Host_SaveConfig(void)
303 {
304         Host_SaveConfig_to(CONFIGFILENAME);
305 }
306 void Host_SaveConfig_f(void)
307 {
308         const char *file = CONFIGFILENAME;
309
310         if(Cmd_Argc() >= 2) {
311                 file = Cmd_Argv(1);
312                 Con_Printf("Saving to %s\n", file);
313         }
314
315         Host_SaveConfig_to(file);
316 }
317
318 static void Host_AddConfigText(void)
319 {
320         // set up the default startmap_sp and startmap_dm aliases (mods can
321         // override these) and then execute the quake.rc startup script
322         if (gamemode == GAME_NEHAHRA)
323                 Cbuf_InsertText("alias startmap_sp \"map nehstart\"\nalias startmap_dm \"map nehstart\"\nexec " STARTCONFIGFILENAME "\n");
324         else if (gamemode == GAME_TRANSFUSION)
325                 Cbuf_InsertText("alias startmap_sp \"map e1m1\"\n""alias startmap_dm \"map bb1\"\nexec " STARTCONFIGFILENAME "\n");
326         else if (gamemode == GAME_TEU)
327                 Cbuf_InsertText("alias startmap_sp \"map start\"\nalias startmap_dm \"map start\"\nexec teu.rc\n");
328         else
329                 Cbuf_InsertText("alias startmap_sp \"map start\"\nalias startmap_dm \"map start\"\nexec " STARTCONFIGFILENAME "\n");
330 }
331
332 /*
333 ===============
334 Host_LoadConfig_f
335
336 Resets key bindings and cvars to defaults and then reloads scripts
337 ===============
338 */
339 void Host_LoadConfig_f(void)
340 {
341         // reset all cvars, commands and aliases to init values
342         Cmd_RestoreInitState();
343 #ifdef CONFIG_MENU
344         // prepend a menu restart command to execute after the config
345         Cbuf_InsertText("\nmenu_restart\n");
346 #endif
347         // reset cvars to their defaults, and then exec startup scripts again
348         Host_AddConfigText();
349 }
350
351 /*
352 =================
353 SV_ClientPrint
354
355 Sends text across to be displayed
356 FIXME: make this just a stuffed echo?
357 =================
358 */
359 void SV_ClientPrint(const char *msg)
360 {
361         if (host_client->netconnection)
362         {
363                 MSG_WriteByte(&host_client->netconnection->message, svc_print);
364                 MSG_WriteString(&host_client->netconnection->message, msg);
365         }
366 }
367
368 /*
369 =================
370 SV_ClientPrintf
371
372 Sends text across to be displayed
373 FIXME: make this just a stuffed echo?
374 =================
375 */
376 void SV_ClientPrintf(const char *fmt, ...)
377 {
378         va_list argptr;
379         char msg[MAX_INPUTLINE];
380
381         va_start(argptr,fmt);
382         dpvsnprintf(msg,sizeof(msg),fmt,argptr);
383         va_end(argptr);
384
385         SV_ClientPrint(msg);
386 }
387
388 /*
389 =================
390 SV_BroadcastPrint
391
392 Sends text to all active clients
393 =================
394 */
395 void SV_BroadcastPrint(const char *msg)
396 {
397         int i;
398         client_t *client;
399
400         for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
401         {
402                 if (client->active && client->netconnection)
403                 {
404                         MSG_WriteByte(&client->netconnection->message, svc_print);
405                         MSG_WriteString(&client->netconnection->message, msg);
406                 }
407         }
408
409         if (sv_echobprint.integer && cls.state == ca_dedicated)
410                 Con_Print(msg);
411 }
412
413 /*
414 =================
415 SV_BroadcastPrintf
416
417 Sends text to all active clients
418 =================
419 */
420 void SV_BroadcastPrintf(const char *fmt, ...)
421 {
422         va_list argptr;
423         char msg[MAX_INPUTLINE];
424
425         va_start(argptr,fmt);
426         dpvsnprintf(msg,sizeof(msg),fmt,argptr);
427         va_end(argptr);
428
429         SV_BroadcastPrint(msg);
430 }
431
432 /*
433 =================
434 Host_ClientCommands
435
436 Send text over to the client to be executed
437 =================
438 */
439 void Host_ClientCommands(const char *fmt, ...)
440 {
441         va_list argptr;
442         char string[MAX_INPUTLINE];
443
444         if (!host_client->netconnection)
445                 return;
446
447         va_start(argptr,fmt);
448         dpvsnprintf(string, sizeof(string), fmt, argptr);
449         va_end(argptr);
450
451         MSG_WriteByte(&host_client->netconnection->message, svc_stufftext);
452         MSG_WriteString(&host_client->netconnection->message, string);
453 }
454
455 /*
456 =====================
457 SV_DropClient
458
459 Called when the player is getting totally kicked off the host
460 if (crash = true), don't bother sending signofs
461 =====================
462 */
463 void SV_DropClient(qboolean crash)
464 {
465         prvm_prog_t *prog = SVVM_prog;
466         int i;
467         Con_Printf("Client \"%s\" dropped\n", host_client->name);
468
469         SV_StopDemoRecording(host_client);
470
471         // make sure edict is not corrupt (from a level change for example)
472         host_client->edict = PRVM_EDICT_NUM(host_client - svs.clients + 1);
473
474         if (host_client->netconnection)
475         {
476                 // tell the client to be gone
477                 if (!crash)
478                 {
479                         // LordHavoc: no opportunity for resending, so use unreliable 3 times
480                         unsigned char bufdata[8];
481                         sizebuf_t buf;
482                         memset(&buf, 0, sizeof(buf));
483                         buf.data = bufdata;
484                         buf.maxsize = sizeof(bufdata);
485                         MSG_WriteByte(&buf, svc_disconnect);
486                         NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, 0, false);
487                         NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, 0, false);
488                         NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, 0, false);
489                 }
490         }
491
492         // call qc ClientDisconnect function
493         // LordHavoc: don't call QC if server is dead (avoids recursive
494         // Host_Error in some mods when they run out of edicts)
495         if (host_client->clientconnectcalled && sv.active && host_client->edict)
496         {
497                 // call the prog function for removing a client
498                 // this will set the body to a dead frame, among other things
499                 int saveSelf = PRVM_serverglobaledict(self);
500                 host_client->clientconnectcalled = false;
501                 PRVM_serverglobalfloat(time) = sv.time;
502                 PRVM_serverglobaledict(self) = PRVM_EDICT_TO_PROG(host_client->edict);
503                 prog->ExecuteProgram(prog, PRVM_serverfunction(ClientDisconnect), "QC function ClientDisconnect is missing");
504                 PRVM_serverglobaledict(self) = saveSelf;
505         }
506
507         if (host_client->netconnection)
508         {
509                 // break the net connection
510                 NetConn_Close(host_client->netconnection);
511                 host_client->netconnection = NULL;
512         }
513
514         // if a download is active, close it
515         if (host_client->download_file)
516         {
517                 Con_DPrintf("Download of %s aborted when %s dropped\n", host_client->download_name, host_client->name);
518                 FS_Close(host_client->download_file);
519                 host_client->download_file = NULL;
520                 host_client->download_name[0] = 0;
521                 host_client->download_expectedposition = 0;
522                 host_client->download_started = false;
523         }
524
525         // remove leaving player from scoreboard
526         host_client->name[0] = 0;
527         host_client->colors = 0;
528         host_client->frags = 0;
529         // send notification to all clients
530         // get number of client manually just to make sure we get it right...
531         i = host_client - svs.clients;
532         MSG_WriteByte (&sv.reliable_datagram, svc_updatename);
533         MSG_WriteByte (&sv.reliable_datagram, i);
534         MSG_WriteString (&sv.reliable_datagram, host_client->name);
535         MSG_WriteByte (&sv.reliable_datagram, svc_updatecolors);
536         MSG_WriteByte (&sv.reliable_datagram, i);
537         MSG_WriteByte (&sv.reliable_datagram, host_client->colors);
538         MSG_WriteByte (&sv.reliable_datagram, svc_updatefrags);
539         MSG_WriteByte (&sv.reliable_datagram, i);
540         MSG_WriteShort (&sv.reliable_datagram, host_client->frags);
541
542         // free the client now
543         if (host_client->entitydatabase)
544                 EntityFrame_FreeDatabase(host_client->entitydatabase);
545         if (host_client->entitydatabase4)
546                 EntityFrame4_FreeDatabase(host_client->entitydatabase4);
547         if (host_client->entitydatabase5)
548                 EntityFrame5_FreeDatabase(host_client->entitydatabase5);
549
550         if (sv.active)
551         {
552                 // clear a fields that matter to DP_SV_CLIENTNAME and DP_SV_CLIENTCOLORS, and also frags
553                 PRVM_ED_ClearEdict(prog, host_client->edict);
554         }
555
556         // clear the client struct (this sets active to false)
557         memset(host_client, 0, sizeof(*host_client));
558
559         // update server listing on the master because player count changed
560         // (which the master uses for filtering empty/full servers)
561         NetConn_Heartbeat(1);
562
563         if (sv.loadgame)
564         {
565                 for (i = 0;i < svs.maxclients;i++)
566                         if (svs.clients[i].active && !svs.clients[i].spawned)
567                                 break;
568                 if (i == svs.maxclients)
569                 {
570                         Con_Printf("Loaded game, everyone rejoined - unpausing\n");
571                         sv.paused = sv.loadgame = false; // we're basically done with loading now
572                 }
573         }
574 }
575
576 /*
577 ==================
578 Host_ShutdownServer
579
580 This only happens at the end of a game, not between levels
581 ==================
582 */
583 void Host_ShutdownServer(void)
584 {
585         prvm_prog_t *prog = SVVM_prog;
586         int i;
587
588         Con_DPrintf("Host_ShutdownServer\n");
589
590         if (!sv.active)
591                 return;
592
593         NetConn_Heartbeat(2);
594         NetConn_Heartbeat(2);
595
596 // make sure all the clients know we're disconnecting
597         World_End(&sv.world);
598         if(prog->loaded)
599         {
600                 if(PRVM_serverfunction(SV_Shutdown))
601                 {
602                         func_t s = PRVM_serverfunction(SV_Shutdown);
603                         PRVM_serverglobalfloat(time) = sv.time;
604                         PRVM_serverfunction(SV_Shutdown) = 0; // prevent it from getting called again
605                         prog->ExecuteProgram(prog, s,"SV_Shutdown() required");
606                 }
607         }
608         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
609                 if (host_client->active)
610                         SV_DropClient(false); // server shutdown
611
612         NetConn_CloseServerPorts();
613
614         sv.active = false;
615 //
616 // clear structures
617 //
618         memset(&sv, 0, sizeof(sv));
619         memset(svs.clients, 0, svs.maxclients*sizeof(client_t));
620
621         cl.islocalgame = false;
622 }
623
624
625 //============================================================================
626
627 /*
628 ===================
629 Host_GetConsoleCommands
630
631 Add them exactly as if they had been typed at the console
632 ===================
633 */
634 static void Host_GetConsoleCommands (void)
635 {
636         char *cmd;
637
638         while (1)
639         {
640                 cmd = Sys_ConsoleInput ();
641                 if (!cmd)
642                         break;
643                 Cbuf_AddText (cmd);
644         }
645 }
646
647 /*
648 ==================
649 Host_TimeReport
650
651 Returns a time report string, for example for
652 ==================
653 */
654 const char *Host_TimingReport(char *buf, size_t buflen)
655 {
656         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);
657 }
658
659 /*
660 ==================
661 Host_Frame
662
663 Runs all active servers
664 ==================
665 */
666 static void Host_Init(void);
667 void Host_Main(void)
668 {
669         double time1 = 0;
670         double time2 = 0;
671         double time3 = 0;
672         double cl_timer = 0, sv_timer = 0;
673         double clframetime, deltacleantime, olddirtytime, dirtytime;
674         double wait;
675         int pass1, pass2, pass3, i;
676         char vabuf[1024];
677         qboolean playing;
678
679         Host_Init();
680
681         realtime = 0;
682         for (;;)
683         {
684                 if (setjmp(host_abortframe))
685                 {
686                         SCR_ClearLoadingScreen(false);
687                         continue;                       // something bad happened, or the server disconnected
688                 }
689
690                 olddirtytime = host_dirtytime;
691                 dirtytime = Sys_DirtyTime();
692                 deltacleantime = dirtytime - olddirtytime;
693                 if (deltacleantime < 0)
694                 {
695                         // warn if it's significant
696                         if (deltacleantime < -0.01)
697                                 Con_Printf("Host_Mingled: time stepped backwards (went from %f to %f, difference %f)\n", olddirtytime, dirtytime, deltacleantime);
698                         deltacleantime = 0;
699                 }
700                 else if (deltacleantime >= 1800)
701                 {
702                         Con_Printf("Host_Mingled: time stepped forward (went from %f to %f, difference %f)\n", olddirtytime, dirtytime, deltacleantime);
703                         deltacleantime = 0;
704                 }
705                 realtime += deltacleantime;
706                 host_dirtytime = dirtytime;
707
708                 cl_timer += deltacleantime;
709                 sv_timer += deltacleantime;
710
711                 if (!svs.threaded)
712                 {
713                         svs.perf_acc_realtime += deltacleantime;
714
715                         // Look for clients who have spawned
716                         playing = false;
717                         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
718                                 if(host_client->begun)
719                                         if(host_client->netconnection)
720                                                 playing = true;
721                         if(sv.time < 10)
722                         {
723                                 // don't accumulate time for the first 10 seconds of a match
724                                 // so things can settle
725                                 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;
726                         }
727                         else if(svs.perf_acc_realtime > 5)
728                         {
729                                 svs.perf_cpuload = 1 - svs.perf_acc_sleeptime / svs.perf_acc_realtime;
730                                 svs.perf_lost = svs.perf_acc_lost / svs.perf_acc_realtime;
731                                 if(svs.perf_acc_offset_samples > 0)
732                                 {
733                                         svs.perf_offset_max = svs.perf_acc_offset_max;
734                                         svs.perf_offset_avg = svs.perf_acc_offset / svs.perf_acc_offset_samples;
735                                         svs.perf_offset_sdev = sqrt(svs.perf_acc_offset_squared / svs.perf_acc_offset_samples - svs.perf_offset_avg * svs.perf_offset_avg);
736                                 }
737                                 if(svs.perf_lost > 0 && developer_extra.integer)
738                                         if(playing) // only complain if anyone is looking
739                                                 Con_DPrintf("Server can't keep up: %s\n", Host_TimingReport(vabuf, sizeof(vabuf)));
740                                 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;
741                         }
742                 }
743
744                 if (slowmo.value < 0.00001 && slowmo.value != 0)
745                         Cvar_SetValue("slowmo", 0);
746                 if (host_framerate.value < 0.00001 && host_framerate.value != 0)
747                         Cvar_SetValue("host_framerate", 0);
748
749                 // keep the random time dependent, but not when playing demos/benchmarking
750                 if(!*sv_random_seed.string && !cls.demoplayback)
751                         rand();
752
753                 // get new key events
754                 Key_EventQueue_Unblock();
755                 SndSys_SendKeyEvents();
756                 Sys_SendKeyEvents();
757
758                 NetConn_UpdateSockets();
759
760                 Log_DestBuffer_Flush();
761
762                 // receive packets on each main loop iteration, as the main loop may
763                 // be undersleeping due to select() detecting a new packet
764                 if (sv.active && !svs.threaded)
765                         NetConn_ServerFrame();
766
767                 Curl_Run();
768
769                 // check for commands typed to the host
770                 Host_GetConsoleCommands();
771
772                 // when a server is running we only execute console commands on server frames
773                 // (this mainly allows frikbot .way config files to work properly by staying in sync with the server qc)
774                 // otherwise we execute them on client frames
775                 if (sv.active ? sv_timer > 0 : cl_timer > 0)
776                 {
777                         // process console commands
778 //                      R_TimeReport("preconsole");
779                         CL_VM_PreventInformationLeaks();
780                         Cbuf_Frame();
781 //                      R_TimeReport("console");
782                 }
783
784                 //Con_Printf("%6.0f %6.0f\n", cl_timer * 1000000.0, sv_timer * 1000000.0);
785
786                 // if the accumulators haven't become positive yet, wait a while
787                 if (cls.state == ca_dedicated)
788                         wait = sv_timer * -1000000.0;
789                 else if (!sv.active || svs.threaded)
790                         wait = cl_timer * -1000000.0;
791                 else
792                         wait = max(cl_timer, sv_timer) * -1000000.0;
793
794                 if (!cls.timedemo && wait >= 1)
795                 {
796                         double time0, delta;
797
798                         if(host_maxwait.value <= 0)
799                                 wait = min(wait, 1000000.0);
800                         else
801                                 wait = min(wait, host_maxwait.value * 1000.0);
802                         if(wait < 1)
803                                 wait = 1; // because we cast to int
804
805                         time0 = Sys_DirtyTime();
806                         if (sv_checkforpacketsduringsleep.integer && !sys_usenoclockbutbenchmark.integer && !svs.threaded)
807                                 NetConn_SleepMicroseconds((int)wait);
808                         else
809                                 Sys_Sleep((int)wait);
810                         delta = Sys_DirtyTime() - time0;
811                         if (delta < 0 || delta >= 1800) delta = 0;
812                         if (!svs.threaded)
813                                 svs.perf_acc_sleeptime += delta;
814 //                      R_TimeReport("sleep");
815                         continue;
816                 }
817
818                 // limit the frametime steps to no more than 100ms each
819                 if (cl_timer > 0.1)
820                         cl_timer = 0.1;
821                 if (sv_timer > 0.1)
822                 {
823                         if (!svs.threaded)
824                                 svs.perf_acc_lost += (sv_timer - 0.1);
825                         sv_timer = 0.1;
826                 }
827
828                 R_TimeReport("---");
829
830         //-------------------
831         //
832         // server operations
833         //
834         //-------------------
835
836                 // limit the frametime steps to no more than 100ms each
837                 if (sv.active && sv_timer > 0 && !svs.threaded)
838                 {
839                         // execute one or more server frames, with an upper limit on how much
840                         // execution time to spend on server frames to avoid freezing the game if
841                         // the server is overloaded, this execution time limit means the game will
842                         // slow down if the server is taking too long.
843                         int framecount, framelimit = 1;
844                         double advancetime, aborttime = 0;
845                         float offset;
846                         prvm_prog_t *prog = SVVM_prog;
847
848                         // run the world state
849                         // don't allow simulation to run too fast or too slow or logic glitches can occur
850
851                         // stop running server frames if the wall time reaches this value
852                         if (sys_ticrate.value <= 0)
853                                 advancetime = sv_timer;
854                         else if (cl.islocalgame && !sv_fixedframeratesingleplayer.integer)
855                         {
856                                 // synchronize to the client frametime, but no less than 10ms and no more than 100ms
857                                 advancetime = bound(0.01, cl_timer, 0.1);
858                         }
859                         else
860                         {
861                                 advancetime = sys_ticrate.value;
862                                 // listen servers can run multiple server frames per client frame
863                                 framelimit = cl_maxphysicsframesperserverframe.integer;
864                                 aborttime = Sys_DirtyTime() + 0.1;
865                         }
866                         if(slowmo.value > 0 && slowmo.value < 1)
867                                 advancetime = min(advancetime, 0.1 / slowmo.value);
868                         else
869                                 advancetime = min(advancetime, 0.1);
870
871                         if(advancetime > 0)
872                         {
873                                 offset = Sys_DirtyTime() - dirtytime;if (offset < 0 || offset >= 1800) offset = 0;
874                                 offset += sv_timer;
875                                 ++svs.perf_acc_offset_samples;
876                                 svs.perf_acc_offset += offset;
877                                 svs.perf_acc_offset_squared += offset * offset;
878                                 if(svs.perf_acc_offset_max < offset)
879                                         svs.perf_acc_offset_max = offset;
880                         }
881
882                         // only advance time if not paused
883                         // the game also pauses in singleplayer when menu or console is used
884                         sv.frametime = advancetime * slowmo.value;
885                         if (host_framerate.value)
886                                 sv.frametime = host_framerate.value;
887                         if (sv.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive || cl.csqc_paused)))
888                                 sv.frametime = 0;
889
890                         for (framecount = 0;framecount < framelimit && sv_timer > 0;framecount++)
891                         {
892                                 sv_timer -= advancetime;
893
894                                 // move things around and think unless paused
895                                 if (sv.frametime)
896                                         SV_Physics();
897
898                                 // if this server frame took too long, break out of the loop
899                                 if (framelimit > 1 && Sys_DirtyTime() >= aborttime)
900                                         break;
901                         }
902                         R_TimeReport("serverphysics");
903
904                         // send all messages to the clients
905                         SV_SendClientMessages();
906
907                         if (sv.paused == 1 && realtime > sv.pausedstart && sv.pausedstart > 0) {
908                                 prog->globals.fp[OFS_PARM0] = realtime - sv.pausedstart;
909                                 PRVM_serverglobalfloat(time) = sv.time;
910                                 prog->ExecuteProgram(prog, PRVM_serverfunction(SV_PausedTic), "QC function SV_PausedTic is missing");
911                         }
912
913                         // send an heartbeat if enough time has passed since the last one
914                         NetConn_Heartbeat(0);
915                         R_TimeReport("servernetwork");
916                 }
917                 else if (!svs.threaded)
918                 {
919                         // don't let r_speeds display jump around
920                         R_TimeReport("serverphysics");
921                         R_TimeReport("servernetwork");
922                 }
923
924         //-------------------
925         //
926         // client operations
927         //
928         //-------------------
929
930                 if (cls.state != ca_dedicated && (cl_timer > 0 || cls.timedemo || ((vid_activewindow ? cl_maxfps : cl_maxidlefps).value < 1)))
931                 {
932                         R_TimeReport("---");
933                         Collision_Cache_NewFrame();
934                         R_TimeReport("photoncache");
935                         // decide the simulation time
936                         if (cls.capturevideo.active)
937                         {
938                                 //***
939                                 if (cls.capturevideo.realtime)
940                                         clframetime = cl.realframetime = max(cl_timer, 1.0 / cls.capturevideo.framerate);
941                                 else
942                                 {
943                                         clframetime = 1.0 / cls.capturevideo.framerate;
944                                         cl.realframetime = max(cl_timer, clframetime);
945                                 }
946                         }
947                         else if (vid_activewindow && cl_maxfps.value >= 1 && !cls.timedemo)
948                         {
949                                 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxfps.value);
950                                 // when running slow, we need to sleep to keep input responsive
951                                 wait = bound(0, cl_maxfps_alwayssleep.value * 1000, 100000);
952                                 if (wait > 0)
953                                         Sys_Sleep((int)wait);
954                         }
955                         else if (!vid_activewindow && cl_maxidlefps.value >= 1 && !cls.timedemo)
956                                 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxidlefps.value);
957                         else
958                                 clframetime = cl.realframetime = cl_timer;
959
960                         // apply slowmo scaling
961                         clframetime *= cl.movevars_timescale;
962                         // scale playback speed of demos by slowmo cvar
963                         if (cls.demoplayback)
964                         {
965                                 clframetime *= slowmo.value;
966                                 // if demo playback is paused, don't advance time at all
967                                 if (cls.demopaused)
968                                         clframetime = 0;
969                         }
970                         else
971                         {
972                                 // host_framerate overrides all else
973                                 if (host_framerate.value)
974                                         clframetime = host_framerate.value;
975
976                                 if (cl.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive || cl.csqc_paused)))
977                                         clframetime = 0;
978                         }
979
980                         if (cls.timedemo)
981                                 clframetime = cl.realframetime = cl_timer;
982
983                         // deduct the frame time from the accumulator
984                         cl_timer -= cl.realframetime;
985
986                         cl.oldtime = cl.time;
987                         cl.time += clframetime;
988
989                         // update video
990                         if (host_speeds.integer)
991                                 time1 = Sys_DirtyTime();
992                         R_TimeReport("pre-input");
993
994                         // Collect input into cmd
995                         CL_Input();
996
997                         R_TimeReport("input");
998
999                         // check for new packets
1000                         NetConn_ClientFrame();
1001
1002                         // read a new frame from a demo if needed
1003                         CL_ReadDemoMessage();
1004                         R_TimeReport("clientnetwork");
1005
1006                         // now that packets have been read, send input to server
1007                         CL_SendMove();
1008                         R_TimeReport("sendmove");
1009
1010                         // update client world (interpolate entities, create trails, etc)
1011                         CL_UpdateWorld();
1012                         R_TimeReport("lerpworld");
1013
1014                         CL_Video_Frame();
1015
1016                         R_TimeReport("client");
1017
1018                         CL_UpdateScreen();
1019                         R_TimeReport("render");
1020
1021                         if (host_speeds.integer)
1022                                 time2 = Sys_DirtyTime();
1023
1024                         // update audio
1025                         if(cl.csqc_usecsqclistener)
1026                         {
1027                                 S_Update(&cl.csqc_listenermatrix);
1028                                 cl.csqc_usecsqclistener = false;
1029                         }
1030                         else
1031                                 S_Update(&r_refdef.view.matrix);
1032
1033 #ifdef CONFIG_CD
1034                         CDAudio_Update();
1035                         R_TimeReport("audio");
1036 #endif
1037
1038                         // reset gathering of mouse input
1039                         in_mouse_x = in_mouse_y = 0;
1040
1041                         if (host_speeds.integer)
1042                         {
1043                                 pass1 = (int)((time1 - time3)*1000000);
1044                                 time3 = Sys_DirtyTime();
1045                                 pass2 = (int)((time2 - time1)*1000000);
1046                                 pass3 = (int)((time3 - time2)*1000000);
1047                                 Con_Printf("%6ius total %6ius server %6ius gfx %6ius snd\n",
1048                                                         pass1+pass2+pass3, pass1, pass2, pass3);
1049                         }
1050                 }
1051
1052 #if MEMPARANOIA
1053                 Mem_CheckSentinelsGlobal();
1054 #else
1055                 if (developer_memorydebug.integer)
1056                         Mem_CheckSentinelsGlobal();
1057 #endif
1058
1059                 // if there is some time remaining from this frame, reset the timers
1060                 if (cl_timer >= 0)
1061                         cl_timer = 0;
1062                 if (sv_timer >= 0)
1063                 {
1064                         if (!svs.threaded)
1065                                 svs.perf_acc_lost += sv_timer;
1066                         sv_timer = 0;
1067                 }
1068
1069                 host_framecount++;
1070         }
1071 }
1072
1073 //============================================================================
1074
1075 qboolean vid_opened = false;
1076 void Host_StartVideo(void)
1077 {
1078         if (!vid_opened && cls.state != ca_dedicated)
1079         {
1080                 vid_opened = true;
1081                 // make sure we open sockets before opening video because the Windows Firewall "unblock?" dialog can screw up the graphics context on some graphics drivers
1082                 NetConn_UpdateSockets();
1083                 VID_Start();
1084 #ifdef CONFIG_CD
1085                 CDAudio_Startup();
1086 #endif
1087         }
1088 }
1089
1090 char engineversion[128];
1091
1092 qboolean sys_nostdout = false;
1093
1094 extern qboolean host_stuffcmdsrun;
1095
1096 static qfile_t *locksession_fh = NULL;
1097 static qboolean locksession_run = false;
1098 static void Host_InitSession(void)
1099 {
1100         int i;
1101         Cvar_RegisterVariable(&sessionid);
1102         Cvar_RegisterVariable(&locksession);
1103
1104         // load the session ID into the read-only cvar
1105         if ((i = COM_CheckParm("-sessionid")) && (i + 1 < com_argc))
1106         {
1107                 char vabuf[1024];
1108                 if(com_argv[i+1][0] == '.')
1109                         Cvar_SetQuick(&sessionid, com_argv[i+1]);
1110                 else
1111                         Cvar_SetQuick(&sessionid, va(vabuf, sizeof(vabuf), ".%s", com_argv[i+1]));
1112         }
1113 }
1114 void Host_LockSession(void)
1115 {
1116         if(locksession_run)
1117                 return;
1118         locksession_run = true;
1119         if(locksession.integer != 0 && !COM_CheckParm("-readonly"))
1120         {
1121                 char vabuf[1024];
1122                 char *p = va(vabuf, sizeof(vabuf), "%slock%s", *fs_userdir ? fs_userdir : fs_basedir, sessionid.string);
1123                 FS_CreatePath(p);
1124                 locksession_fh = FS_SysOpen(p, "wl", false);
1125                 // TODO maybe write the pid into the lockfile, while we are at it? may help server management tools
1126                 if(!locksession_fh)
1127                 {
1128                         if(locksession.integer == 2)
1129                         {
1130                                 Con_Printf("WARNING: session lock %s could not be acquired. Please run with -sessionid and an unique session name. Continuing anyway.\n", p);
1131                         }
1132                         else
1133                         {
1134                                 Sys_Error("session lock %s could not be acquired. Please run with -sessionid and an unique session name.\n", p);
1135                         }
1136                 }
1137         }
1138 }
1139 void Host_UnlockSession(void)
1140 {
1141         if(!locksession_run)
1142                 return;
1143         locksession_run = false;
1144
1145         if(locksession_fh)
1146         {
1147                 FS_Close(locksession_fh);
1148                 // NOTE: we can NOT unlink the lock here, as doing so would
1149                 // create a race condition if another process created it
1150                 // between our close and our unlink
1151                 locksession_fh = NULL;
1152         }
1153 }
1154
1155 /*
1156 ====================
1157 Host_Init
1158 ====================
1159 */
1160 static void Host_Init (void)
1161 {
1162         int i;
1163         const char* os;
1164         char vabuf[1024];
1165
1166         if (COM_CheckParm("-profilegameonly"))
1167                 Sys_AllowProfiling(false);
1168
1169         // LordHavoc: quake never seeded the random number generator before... heh
1170         if (COM_CheckParm("-benchmark"))
1171                 srand(0); // predictable random sequence for -benchmark
1172         else
1173                 srand((unsigned int)time(NULL));
1174
1175         // FIXME: this is evil, but possibly temporary
1176         // LordHavoc: doesn't seem very temporary...
1177         // LordHavoc: made this a saved cvar
1178 // COMMANDLINEOPTION: Console: -developer enables warnings and other notices (RECOMMENDED for mod developers)
1179         if (COM_CheckParm("-developer"))
1180         {
1181                 developer.value = developer.integer = 1;
1182                 developer.string = "1";
1183         }
1184
1185         if (COM_CheckParm("-developer2") || COM_CheckParm("-developer3"))
1186         {
1187                 developer.value = developer.integer = 1;
1188                 developer.string = "1";
1189                 developer_extra.value = developer_extra.integer = 1;
1190                 developer_extra.string = "1";
1191                 developer_insane.value = developer_insane.integer = 1;
1192                 developer_insane.string = "1";
1193                 developer_memory.value = developer_memory.integer = 1;
1194                 developer_memory.string = "1";
1195                 developer_memorydebug.value = developer_memorydebug.integer = 1;
1196                 developer_memorydebug.string = "1";
1197         }
1198
1199         if (COM_CheckParm("-developer3"))
1200         {
1201                 gl_paranoid.integer = 1;gl_paranoid.string = "1";
1202                 gl_printcheckerror.integer = 1;gl_printcheckerror.string = "1";
1203         }
1204
1205 // COMMANDLINEOPTION: Console: -nostdout disables text output to the terminal the game was launched from
1206         if (COM_CheckParm("-nostdout"))
1207                 sys_nostdout = 1;
1208
1209         // used by everything
1210         Memory_Init();
1211
1212         // initialize console command/cvar/alias/command execution systems
1213         Cmd_Init();
1214
1215         // initialize memory subsystem cvars/commands
1216         Memory_Init_Commands();
1217
1218         // initialize console and logging and its cvars/commands
1219         Con_Init();
1220
1221         // initialize various cvars that could not be initialized earlier
1222         u8_Init();
1223         Curl_Init_Commands();
1224         Cmd_Init_Commands();
1225         Sys_Init_Commands();
1226         COM_Init_Commands();
1227         FS_Init_Commands();
1228
1229         // initialize console window (only used by sys_win.c)
1230         Sys_InitConsole();
1231
1232         // initialize the self-pack (must be before COM_InitGameType as it may add command line options)
1233         FS_Init_SelfPack();
1234
1235         // detect gamemode from commandline options or executable name
1236         COM_InitGameType();
1237
1238         // construct a version string for the corner of the console
1239         os = DP_OS_NAME;
1240         dpsnprintf (engineversion, sizeof (engineversion), "%s %s %s", gamename, os, buildstring);
1241         Con_Printf("%s\n", engineversion);
1242
1243         // initialize process nice level
1244         Sys_InitProcessNice();
1245
1246         // initialize ixtable
1247         Mathlib_Init();
1248
1249         // initialize filesystem (including fs_basedir, fs_gamedir, -game, scr_screenshot_name)
1250         FS_Init();
1251
1252         // register the cvars for session locking
1253         Host_InitSession();
1254
1255         // must be after FS_Init
1256         Crypto_Init();
1257         Crypto_Init_Commands();
1258
1259         NetConn_Init();
1260         Curl_Init();
1261         //PR_Init();
1262         //PR_Cmd_Init();
1263         PRVM_Init();
1264         Mod_Init();
1265         World_Init();
1266         SV_Init();
1267         V_Init(); // some cvars needed by server player physics (cl_rollangle etc)
1268         Host_InitCommands();
1269         Host_InitLocal();
1270         Host_ServerOptions();
1271
1272         Thread_Init();
1273
1274         if (cls.state == ca_dedicated)
1275                 Cmd_AddCommand ("disconnect", CL_Disconnect_f, "disconnect from server (or disconnect all clients if running a server)");
1276         else
1277         {
1278                 Con_DPrintf("Initializing client\n");
1279
1280                 R_Modules_Init();
1281                 Palette_Init();
1282 #ifdef CONFIG_MENU
1283                 MR_Init_Commands();
1284 #endif
1285                 VID_Shared_Init();
1286                 VID_Init();
1287                 Render_Init();
1288                 S_Init();
1289 #ifdef CONFIG_CD
1290                 CDAudio_Init();
1291 #endif
1292                 Key_Init();
1293                 CL_Init();
1294         }
1295
1296         // save off current state of aliases, commands and cvars for later restore if FS_GameDir_f is called
1297         // NOTE: menu commands are freed by Cmd_RestoreInitState
1298         Cmd_SaveInitState();
1299
1300         // FIXME: put this into some neat design, but the menu should be allowed to crash
1301         // without crashing the whole game, so this should just be a short-time solution
1302
1303         // here comes the not so critical stuff
1304         if (setjmp(host_abortframe)) {
1305                 return;
1306         }
1307
1308         Host_AddConfigText();
1309         Cbuf_Execute();
1310
1311         // if stuffcmds wasn't run, then quake.rc is probably missing, use default
1312         if (!host_stuffcmdsrun)
1313         {
1314                 Cbuf_AddText("exec default.cfg\nexec " CONFIGFILENAME "\nexec autoexec.cfg\nstuffcmds\n");
1315                 Cbuf_Execute();
1316         }
1317
1318         // put up the loading image so the user doesn't stare at a black screen...
1319         SCR_BeginLoadingPlaque(true);
1320
1321 #ifdef CONFIG_MENU
1322         if (cls.state != ca_dedicated)
1323         {
1324                 MR_Init();
1325         }
1326 #endif
1327
1328         // check for special benchmark mode
1329 // 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)
1330         i = COM_CheckParm("-benchmark");
1331         if (i && i + 1 < com_argc)
1332         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1333         {
1334                 Cbuf_AddText(va(vabuf, sizeof(vabuf), "timedemo %s\n", com_argv[i + 1]));
1335                 Cbuf_Execute();
1336         }
1337
1338         // check for special demo mode
1339 // COMMANDLINEOPTION: Client: -demo <demoname> runs a playdemo and quits
1340         i = COM_CheckParm("-demo");
1341         if (i && i + 1 < com_argc)
1342         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1343         {
1344                 Cbuf_AddText(va(vabuf, sizeof(vabuf), "playdemo %s\n", com_argv[i + 1]));
1345                 Cbuf_Execute();
1346         }
1347
1348 // COMMANDLINEOPTION: Client: -capturedemo <demoname> captures a playdemo and quits
1349         i = COM_CheckParm("-capturedemo");
1350         if (i && i + 1 < com_argc)
1351         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1352         {
1353                 Cbuf_AddText(va(vabuf, sizeof(vabuf), "playdemo %s\ncl_capturevideo 1\n", com_argv[i + 1]));
1354                 Cbuf_Execute();
1355         }
1356
1357         if (cls.state == ca_dedicated || COM_CheckParm("-listen"))
1358         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1359         {
1360                 Cbuf_AddText("startmap_dm\n");
1361                 Cbuf_Execute();
1362         }
1363
1364         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1365         {
1366 #ifdef CONFIG_MENU
1367                 Cbuf_AddText("togglemenu 1\n");
1368 #endif
1369                 Cbuf_Execute();
1370         }
1371
1372         Con_DPrint("========Initialized=========\n");
1373
1374         //Host_StartVideo();
1375
1376         if (cls.state != ca_dedicated)
1377                 SV_StartThread();
1378 }
1379
1380
1381 /*
1382 ===============
1383 Host_Shutdown
1384
1385 FIXME: this is a callback from Sys_Quit and Sys_Error.  It would be better
1386 to run quit through here before the final handoff to the sys code.
1387 ===============
1388 */
1389 void Host_Shutdown(void)
1390 {
1391         static qboolean isdown = false;
1392
1393         if (isdown)
1394         {
1395                 Con_Print("recursive shutdown\n");
1396                 return;
1397         }
1398         if (setjmp(host_abortframe))
1399         {
1400                 Con_Print("aborted the quitting frame?!?\n");
1401                 return;
1402         }
1403         isdown = true;
1404
1405         // be quiet while shutting down
1406         S_StopAllSounds();
1407
1408         // end the server thread
1409         if (svs.threaded)
1410                 SV_StopThread();
1411
1412         // disconnect client from server if active
1413         CL_Disconnect();
1414
1415         // shut down local server if active
1416         SV_LockThreadMutex();
1417         Host_ShutdownServer ();
1418         SV_UnlockThreadMutex();
1419
1420 #ifdef CONFIG_MENU
1421         // Shutdown menu
1422         if(MR_Shutdown)
1423                 MR_Shutdown();
1424 #endif
1425
1426         // AK shutdown PRVM
1427         // AK hmm, no PRVM_Shutdown(); yet
1428
1429         CL_Video_Shutdown();
1430
1431         Host_SaveConfig();
1432
1433 #ifdef CONFIG_CD
1434         CDAudio_Shutdown ();
1435 #endif
1436         S_Terminate ();
1437         Curl_Shutdown ();
1438         NetConn_Shutdown ();
1439         //PR_Shutdown ();
1440
1441         if (cls.state != ca_dedicated)
1442         {
1443                 R_Modules_Shutdown();
1444                 VID_Shutdown();
1445         }
1446
1447         SV_StopThread();
1448         Thread_Shutdown();
1449         Cmd_Shutdown();
1450         Key_Shutdown();
1451         CL_Shutdown();
1452         Sys_Shutdown();
1453         Log_Close();
1454         Crypto_Shutdown();
1455
1456         Host_UnlockSession();
1457
1458         S_Shutdown();
1459         Con_Shutdown();
1460         Memory_Shutdown();
1461 }
1462