Fix engine not starting on Windows if linked against SDL > 2.0.5
[xonotic/darkplaces.git] / host.c
1 /*
2 Copyright (C) 1996-1997 Id Software, Inc.
3
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12
13 See the GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
18
19 */
20 // host.c -- coordinates spawning and killing of local servers
21
22 #include "quakedef.h"
23
24 #include <time.h>
25 #include "libcurl.h"
26 #include "cdaudio.h"
27 #include "cl_video.h"
28 #include "progsvm.h"
29 #include "csprogs.h"
30 #include "sv_demo.h"
31 #include "snd_main.h"
32 #include "thread.h"
33 #include "utf8lib.h"
34
35 /*
36
37 A server can always be started, even if the system started out as a client
38 to a remote system.
39
40 A client can NOT be started if the system started as a dedicated server.
41
42 Memory is cleared / released when a server or client begins, not when they end.
43
44 */
45
46 // how many frames have occurred
47 // (checked by Host_Error and Host_SaveConfig_f)
48 int host_framecount = 0;
49 // LordHavoc: set when quit is executed
50 qboolean host_shuttingdown = false;
51
52 // the accumulated mainloop time since application started (with filtering), without any slowmo or clamping
53 double realtime;
54 // the main loop wall time for this frame
55 double host_dirtytime;
56
57 // current client
58 client_t *host_client;
59
60 jmp_buf host_abortframe;
61
62 // pretend frames take this amount of time (in seconds), 0 = realtime
63 cvar_t host_framerate = {0, "host_framerate","0", "locks frame timing to this value in seconds, 0.05 is 20fps for example, note that this can easily run too fast, use cl_maxfps if you want to limit your framerate instead, or sys_ticrate to limit server speed"};
64 cvar_t cl_maxphysicsframesperserverframe = {0, "cl_maxphysicsframesperserverframe","10", "maximum number of physics frames per server frame"};
65 // shows time used by certain subsystems
66 cvar_t host_speeds = {0, "host_speeds","0", "reports how much time is used in server/graphics/sound"};
67 cvar_t host_maxwait = {0, "host_maxwait","1000", "maximum sleep time requested from the operating system in millisecond. Larger sleeps will be done using multiple host_maxwait length sleeps. Lowering this value will increase CPU load, but may help working around problems with accuracy of sleep times."};
68 cvar_t cl_minfps = {CVAR_SAVE, "cl_minfps", "40", "minimum fps target - while the rendering performance is below this, it will drift toward lower quality"};
69 cvar_t cl_minfps_fade = {CVAR_SAVE, "cl_minfps_fade", "1", "how fast the quality adapts to varying framerate"};
70 cvar_t cl_minfps_qualitymax = {CVAR_SAVE, "cl_minfps_qualitymax", "1", "highest allowed drawdistance multiplier"};
71 cvar_t cl_minfps_qualitymin = {CVAR_SAVE, "cl_minfps_qualitymin", "0.25", "lowest allowed drawdistance multiplier"};
72 cvar_t cl_minfps_qualitymultiply = {CVAR_SAVE, "cl_minfps_qualitymultiply", "0.2", "multiplier for quality changes in quality change per second render time (1 assumes linearity of quality and render time)"};
73 cvar_t cl_minfps_qualityhysteresis = {CVAR_SAVE, "cl_minfps_qualityhysteresis", "0.05", "reduce all quality increments by this to reduce flickering"};
74 cvar_t cl_minfps_qualitystepmax = {CVAR_SAVE, "cl_minfps_qualitystepmax", "0.1", "maximum quality change in a single frame"};
75 cvar_t cl_minfps_force = {0, "cl_minfps_force", "0", "also apply quality reductions in timedemo/capturevideo"};
76 cvar_t cl_maxfps = {CVAR_SAVE, "cl_maxfps", "0", "maximum fps cap, 0 = unlimited, if game is running faster than this it will wait before running another frame (useful to make cpu time available to other programs)"};
77 cvar_t cl_maxfps_alwayssleep = {0, "cl_maxfps_alwayssleep","1", "gives up some processing time to other applications each frame, value in milliseconds, disabled if cl_maxfps is 0"};
78 cvar_t cl_maxidlefps = {CVAR_SAVE, "cl_maxidlefps", "20", "maximum fps cap when the game is not the active window (makes cpu time available to other programs"};
79
80 cvar_t developer = {CVAR_SAVE, "developer","0", "shows debugging messages and information (recommended for all developers and level designers); the value -1 also suppresses buffering and logging these messages"};
81 cvar_t developer_extra = {0, "developer_extra", "0", "prints additional debugging messages, often very verbose!"};
82 cvar_t developer_insane = {0, "developer_insane", "0", "prints huge streams of information about internal workings, entire contents of files being read/written, etc.  Not recommended!"};
83 cvar_t developer_loadfile = {0, "developer_loadfile","0", "prints name and size of every file loaded via the FS_LoadFile function (which is almost everything)"};
84 cvar_t developer_loading = {0, "developer_loading","0", "prints information about files as they are loaded or unloaded successfully"};
85 cvar_t developer_entityparsing = {0, "developer_entityparsing", "0", "prints detailed network entities information each time a packet is received"};
86
87 cvar_t timestamps = {CVAR_SAVE, "timestamps", "0", "prints timestamps on console messages"};
88 cvar_t timeformat = {CVAR_SAVE, "timeformat", "[%Y-%m-%d %H:%M:%S] ", "time format to use on timestamped console messages"};
89
90 cvar_t sessionid = {CVAR_READONLY, "sessionid", "", "ID of the current session (use the -sessionid parameter to set it); this is always either empty or begins with a dot (.)"};
91 cvar_t locksession = {0, "locksession", "0", "Lock the session? 0 = no, 1 = yes and abort on failure, 2 = yes and continue on failure"};
92
93 /*
94 ================
95 Host_AbortCurrentFrame
96
97 aborts the current host frame and goes on with the next one
98 ================
99 */
100 void Host_AbortCurrentFrame(void) DP_FUNC_NORETURN;
101 void Host_AbortCurrentFrame(void)
102 {
103         // in case we were previously nice, make us mean again
104         Sys_MakeProcessMean();
105
106         longjmp (host_abortframe, 1);
107 }
108
109 /*
110 ================
111 Host_Error
112
113 This shuts down both the client and server
114 ================
115 */
116 void Host_Error (const char *error, ...)
117 {
118         static char hosterrorstring1[MAX_INPUTLINE]; // THREAD UNSAFE
119         static char hosterrorstring2[MAX_INPUTLINE]; // THREAD UNSAFE
120         static qboolean hosterror = false;
121         va_list argptr;
122
123         // turn off rcon redirect if it was active when the crash occurred
124         // to prevent loops when it is a networking problem
125         Con_Rcon_Redirect_Abort();
126
127         va_start (argptr,error);
128         dpvsnprintf (hosterrorstring1,sizeof(hosterrorstring1),error,argptr);
129         va_end (argptr);
130
131         Con_Printf("Host_Error: %s\n", hosterrorstring1);
132
133         // LordHavoc: if crashing very early, or currently shutting down, do
134         // Sys_Error instead
135         if (host_framecount < 3 || host_shuttingdown)
136                 Sys_Error ("Host_Error: %s", hosterrorstring1);
137
138         if (hosterror)
139                 Sys_Error ("Host_Error: recursively entered (original error was: %s    new error is: %s)", hosterrorstring2, hosterrorstring1);
140         hosterror = true;
141
142         strlcpy(hosterrorstring2, hosterrorstring1, sizeof(hosterrorstring2));
143
144         CL_Parse_DumpPacket();
145
146         CL_Parse_ErrorCleanUp();
147
148         //PR_Crash();
149
150         // print out where the crash happened, if it was caused by QC (and do a cleanup)
151         PRVM_Crash(SVVM_prog);
152         PRVM_Crash(CLVM_prog);
153 #ifdef CONFIG_MENU
154         PRVM_Crash(MVM_prog);
155 #endif
156
157         cl.csqc_loaded = false;
158         Cvar_SetValueQuick(&csqc_progcrc, -1);
159         Cvar_SetValueQuick(&csqc_progsize, -1);
160
161         SV_LockThreadMutex();
162         Host_ShutdownServer ();
163         SV_UnlockThreadMutex();
164
165         if (cls.state == ca_dedicated)
166                 Sys_Error ("Host_Error: %s",hosterrorstring2);  // dedicated servers exit
167
168         CL_Disconnect ();
169         cls.demonum = -1;
170
171         hosterror = false;
172
173         Host_AbortCurrentFrame();
174 }
175
176 static void Host_ServerOptions (void)
177 {
178         int i;
179
180         // general default
181         svs.maxclients = 8;
182
183 // COMMANDLINEOPTION: Server: -dedicated [playerlimit] starts a dedicated server (with a command console), default playerlimit is 8
184 // COMMANDLINEOPTION: Server: -listen [playerlimit] starts a multiplayer server with graphical client, like singleplayer but other players can connect, default playerlimit is 8
185         // if no client is in the executable or -dedicated is specified on
186         // commandline, start a dedicated server
187         i = COM_CheckParm ("-dedicated");
188         if (i || !cl_available)
189         {
190                 cls.state = ca_dedicated;
191                 // check for -dedicated specifying how many players
192                 if (i && i + 1 < com_argc && atoi (com_argv[i+1]) >= 1)
193                         svs.maxclients = atoi (com_argv[i+1]);
194                 if (COM_CheckParm ("-listen"))
195                         Con_Printf ("Only one of -dedicated or -listen can be specified\n");
196                 // default sv_public on for dedicated servers (often hosted by serious administrators), off for listen servers (often hosted by clueless users)
197                 Cvar_SetValue("sv_public", 1);
198         }
199         else if (cl_available)
200         {
201                 // client exists and not dedicated, check if -listen is specified
202                 cls.state = ca_disconnected;
203                 i = COM_CheckParm ("-listen");
204                 if (i)
205                 {
206                         // default players unless specified
207                         if (i + 1 < com_argc && atoi (com_argv[i+1]) >= 1)
208                                 svs.maxclients = atoi (com_argv[i+1]);
209                 }
210                 else
211                 {
212                         // default players in some games, singleplayer in most
213                         if (gamemode != GAME_GOODVSBAD2 && !IS_NEXUIZ_DERIVED(gamemode) && gamemode != GAME_BATTLEMECH)
214                                 svs.maxclients = 1;
215                 }
216         }
217
218         svs.maxclients = svs.maxclients_next = bound(1, svs.maxclients, MAX_SCOREBOARD);
219
220         svs.clients = (client_t *)Mem_Alloc(sv_mempool, sizeof(client_t) * svs.maxclients);
221
222         if (svs.maxclients > 1 && !deathmatch.integer && !coop.integer)
223                 Cvar_SetValueQuick(&deathmatch, 1);
224 }
225
226 /*
227 =======================
228 Host_InitLocal
229 ======================
230 */
231 void Host_SaveConfig_f(void);
232 void Host_LoadConfig_f(void);
233 extern cvar_t sv_writepicture_quality;
234 extern cvar_t r_texture_jpeg_fastpicmip;
235 static void Host_InitLocal (void)
236 {
237         Cmd_AddCommand("saveconfig", Host_SaveConfig_f, "save settings to config.cfg (or a specified filename) immediately (also automatic when quitting)");
238         Cmd_AddCommand("loadconfig", Host_LoadConfig_f, "reset everything and reload configs");
239
240         Cvar_RegisterVariable (&cl_maxphysicsframesperserverframe);
241         Cvar_RegisterVariable (&host_framerate);
242         Cvar_RegisterVariable (&host_speeds);
243         Cvar_RegisterVariable (&host_maxwait);
244         Cvar_RegisterVariable (&cl_minfps);
245         Cvar_RegisterVariable (&cl_minfps_fade);
246         Cvar_RegisterVariable (&cl_minfps_qualitymax);
247         Cvar_RegisterVariable (&cl_minfps_qualitymin);
248         Cvar_RegisterVariable (&cl_minfps_qualitystepmax);
249         Cvar_RegisterVariable (&cl_minfps_qualityhysteresis);
250         Cvar_RegisterVariable (&cl_minfps_qualitymultiply);
251         Cvar_RegisterVariable (&cl_minfps_force);
252         Cvar_RegisterVariable (&cl_maxfps);
253         Cvar_RegisterVariable (&cl_maxfps_alwayssleep);
254         Cvar_RegisterVariable (&cl_maxidlefps);
255
256         Cvar_RegisterVariable (&developer);
257         Cvar_RegisterVariable (&developer_extra);
258         Cvar_RegisterVariable (&developer_insane);
259         Cvar_RegisterVariable (&developer_loadfile);
260         Cvar_RegisterVariable (&developer_loading);
261         Cvar_RegisterVariable (&developer_entityparsing);
262
263         Cvar_RegisterVariable (&timestamps);
264         Cvar_RegisterVariable (&timeformat);
265
266         Cvar_RegisterVariable (&sv_writepicture_quality);
267         Cvar_RegisterVariable (&r_texture_jpeg_fastpicmip);
268 }
269
270
271 /*
272 ===============
273 Host_SaveConfig_f
274
275 Writes key bindings and archived cvars to config.cfg
276 ===============
277 */
278 static void Host_SaveConfig_to(const char *file)
279 {
280         qfile_t *f;
281
282 // dedicated servers initialize the host but don't parse and set the
283 // config.cfg cvars
284         // LordHavoc: don't save a config if it crashed in startup
285         if (host_framecount >= 3 && cls.state != ca_dedicated && !COM_CheckParm("-benchmark") && !COM_CheckParm("-capturedemo"))
286         {
287                 f = FS_OpenRealFile(file, "wb", false);
288                 if (!f)
289                 {
290                         Con_Printf("Couldn't write %s.\n", file);
291                         return;
292                 }
293
294                 Key_WriteBindings (f);
295                 Cvar_WriteVariables (f);
296
297                 FS_Close (f);
298         }
299 }
300 void Host_SaveConfig(void)
301 {
302         Host_SaveConfig_to(CONFIGFILENAME);
303 }
304 void Host_SaveConfig_f(void)
305 {
306         const char *file = CONFIGFILENAME;
307
308         if(Cmd_Argc() >= 2) {
309                 file = Cmd_Argv(1);
310                 Con_Printf("Saving to %s\n", file);
311         }
312
313         Host_SaveConfig_to(file);
314 }
315
316 static void Host_AddConfigText(void)
317 {
318         // set up the default startmap_sp and startmap_dm aliases (mods can
319         // override these) and then execute the quake.rc startup script
320         if (gamemode == GAME_NEHAHRA)
321                 Cbuf_InsertText("alias startmap_sp \"map nehstart\"\nalias startmap_dm \"map nehstart\"\nexec " STARTCONFIGFILENAME "\n");
322         else if (gamemode == GAME_TRANSFUSION)
323                 Cbuf_InsertText("alias startmap_sp \"map e1m1\"\n""alias startmap_dm \"map bb1\"\nexec " STARTCONFIGFILENAME "\n");
324         else if (gamemode == GAME_TEU)
325                 Cbuf_InsertText("alias startmap_sp \"map start\"\nalias startmap_dm \"map start\"\nexec teu.rc\n");
326         else
327                 Cbuf_InsertText("alias startmap_sp \"map start\"\nalias startmap_dm \"map start\"\nexec " STARTCONFIGFILENAME "\n");
328 }
329
330 /*
331 ===============
332 Host_LoadConfig_f
333
334 Resets key bindings and cvars to defaults and then reloads scripts
335 ===============
336 */
337 void Host_LoadConfig_f(void)
338 {
339         // reset all cvars, commands and aliases to init values
340         Cmd_RestoreInitState();
341 #ifdef CONFIG_MENU
342         // prepend a menu restart command to execute after the config
343         Cbuf_InsertText("\nmenu_restart\n");
344 #endif
345         // reset cvars to their defaults, and then exec startup scripts again
346         Host_AddConfigText();
347 }
348
349 /*
350 =================
351 SV_ClientPrint
352
353 Sends text across to be displayed
354 FIXME: make this just a stuffed echo?
355 =================
356 */
357 void SV_ClientPrint(const char *msg)
358 {
359         if (host_client->netconnection)
360         {
361                 MSG_WriteByte(&host_client->netconnection->message, svc_print);
362                 MSG_WriteString(&host_client->netconnection->message, msg);
363         }
364 }
365
366 /*
367 =================
368 SV_ClientPrintf
369
370 Sends text across to be displayed
371 FIXME: make this just a stuffed echo?
372 =================
373 */
374 void SV_ClientPrintf(const char *fmt, ...)
375 {
376         va_list argptr;
377         char msg[MAX_INPUTLINE];
378
379         va_start(argptr,fmt);
380         dpvsnprintf(msg,sizeof(msg),fmt,argptr);
381         va_end(argptr);
382
383         SV_ClientPrint(msg);
384 }
385
386 /*
387 =================
388 SV_BroadcastPrint
389
390 Sends text to all active clients
391 =================
392 */
393 void SV_BroadcastPrint(const char *msg)
394 {
395         int i;
396         client_t *client;
397
398         for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
399         {
400                 if (client->active && client->netconnection)
401                 {
402                         MSG_WriteByte(&client->netconnection->message, svc_print);
403                         MSG_WriteString(&client->netconnection->message, msg);
404                 }
405         }
406
407         if (sv_echobprint.integer && cls.state == ca_dedicated)
408                 Con_Print(msg);
409 }
410
411 /*
412 =================
413 SV_BroadcastPrintf
414
415 Sends text to all active clients
416 =================
417 */
418 void SV_BroadcastPrintf(const char *fmt, ...)
419 {
420         va_list argptr;
421         char msg[MAX_INPUTLINE];
422
423         va_start(argptr,fmt);
424         dpvsnprintf(msg,sizeof(msg),fmt,argptr);
425         va_end(argptr);
426
427         SV_BroadcastPrint(msg);
428 }
429
430 /*
431 =================
432 Host_ClientCommands
433
434 Send text over to the client to be executed
435 =================
436 */
437 void Host_ClientCommands(const char *fmt, ...)
438 {
439         va_list argptr;
440         char string[MAX_INPUTLINE];
441
442         if (!host_client->netconnection)
443                 return;
444
445         va_start(argptr,fmt);
446         dpvsnprintf(string, sizeof(string), fmt, argptr);
447         va_end(argptr);
448
449         MSG_WriteByte(&host_client->netconnection->message, svc_stufftext);
450         MSG_WriteString(&host_client->netconnection->message, string);
451 }
452
453 /*
454 =====================
455 SV_DropClient
456
457 Called when the player is getting totally kicked off the host
458 if (crash = true), don't bother sending signofs
459 =====================
460 */
461 void SV_DropClient(qboolean crash)
462 {
463         prvm_prog_t *prog = SVVM_prog;
464         int i;
465         Con_Printf("Client \"%s\" dropped\n", host_client->name);
466
467         SV_StopDemoRecording(host_client);
468
469         // make sure edict is not corrupt (from a level change for example)
470         host_client->edict = PRVM_EDICT_NUM(host_client - svs.clients + 1);
471
472         if (host_client->netconnection)
473         {
474                 // tell the client to be gone
475                 if (!crash)
476                 {
477                         // LordHavoc: no opportunity for resending, so use unreliable 3 times
478                         unsigned char bufdata[8];
479                         sizebuf_t buf;
480                         memset(&buf, 0, sizeof(buf));
481                         buf.data = bufdata;
482                         buf.maxsize = sizeof(bufdata);
483                         MSG_WriteByte(&buf, svc_disconnect);
484                         NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, 0, false);
485                         NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, 0, false);
486                         NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, 0, false);
487                 }
488         }
489
490         // call qc ClientDisconnect function
491         // LordHavoc: don't call QC if server is dead (avoids recursive
492         // Host_Error in some mods when they run out of edicts)
493         if (host_client->clientconnectcalled && sv.active && host_client->edict)
494         {
495                 // call the prog function for removing a client
496                 // this will set the body to a dead frame, among other things
497                 int saveSelf = PRVM_serverglobaledict(self);
498                 host_client->clientconnectcalled = false;
499                 PRVM_serverglobalfloat(time) = sv.time;
500                 PRVM_serverglobaledict(self) = PRVM_EDICT_TO_PROG(host_client->edict);
501                 prog->ExecuteProgram(prog, PRVM_serverfunction(ClientDisconnect), "QC function ClientDisconnect is missing");
502                 PRVM_serverglobaledict(self) = saveSelf;
503         }
504
505         if (host_client->netconnection)
506         {
507                 // break the net connection
508                 NetConn_Close(host_client->netconnection);
509                 host_client->netconnection = NULL;
510         }
511
512         // if a download is active, close it
513         if (host_client->download_file)
514         {
515                 Con_DPrintf("Download of %s aborted when %s dropped\n", host_client->download_name, host_client->name);
516                 FS_Close(host_client->download_file);
517                 host_client->download_file = NULL;
518                 host_client->download_name[0] = 0;
519                 host_client->download_expectedposition = 0;
520                 host_client->download_started = false;
521         }
522
523         // remove leaving player from scoreboard
524         host_client->name[0] = 0;
525         host_client->colors = 0;
526         host_client->frags = 0;
527         // send notification to all clients
528         // get number of client manually just to make sure we get it right...
529         i = host_client - svs.clients;
530         MSG_WriteByte (&sv.reliable_datagram, svc_updatename);
531         MSG_WriteByte (&sv.reliable_datagram, i);
532         MSG_WriteString (&sv.reliable_datagram, host_client->name);
533         MSG_WriteByte (&sv.reliable_datagram, svc_updatecolors);
534         MSG_WriteByte (&sv.reliable_datagram, i);
535         MSG_WriteByte (&sv.reliable_datagram, host_client->colors);
536         MSG_WriteByte (&sv.reliable_datagram, svc_updatefrags);
537         MSG_WriteByte (&sv.reliable_datagram, i);
538         MSG_WriteShort (&sv.reliable_datagram, host_client->frags);
539
540         // free the client now
541         if (host_client->entitydatabase)
542                 EntityFrame_FreeDatabase(host_client->entitydatabase);
543         if (host_client->entitydatabase4)
544                 EntityFrame4_FreeDatabase(host_client->entitydatabase4);
545         if (host_client->entitydatabase5)
546                 EntityFrame5_FreeDatabase(host_client->entitydatabase5);
547
548         if (sv.active)
549         {
550                 // clear a fields that matter to DP_SV_CLIENTNAME and DP_SV_CLIENTCOLORS, and also frags
551                 PRVM_ED_ClearEdict(prog, host_client->edict);
552         }
553
554         // clear the client struct (this sets active to false)
555         memset(host_client, 0, sizeof(*host_client));
556
557         // update server listing on the master because player count changed
558         // (which the master uses for filtering empty/full servers)
559         NetConn_Heartbeat(1);
560
561         if (sv.loadgame)
562         {
563                 for (i = 0;i < svs.maxclients;i++)
564                         if (svs.clients[i].active && !svs.clients[i].spawned)
565                                 break;
566                 if (i == svs.maxclients)
567                 {
568                         Con_Printf("Loaded game, everyone rejoined - unpausing\n");
569                         sv.paused = sv.loadgame = false; // we're basically done with loading now
570                 }
571         }
572 }
573
574 /*
575 ==================
576 Host_ShutdownServer
577
578 This only happens at the end of a game, not between levels
579 ==================
580 */
581 void Host_ShutdownServer(void)
582 {
583         prvm_prog_t *prog = SVVM_prog;
584         int i;
585
586         Con_DPrintf("Host_ShutdownServer\n");
587
588         if (!sv.active)
589                 return;
590
591         NetConn_Heartbeat(2);
592         NetConn_Heartbeat(2);
593
594 // make sure all the clients know we're disconnecting
595         World_End(&sv.world);
596         if(prog->loaded)
597         {
598                 if(PRVM_serverfunction(SV_Shutdown))
599                 {
600                         func_t s = PRVM_serverfunction(SV_Shutdown);
601                         PRVM_serverglobalfloat(time) = sv.time;
602                         PRVM_serverfunction(SV_Shutdown) = 0; // prevent it from getting called again
603                         prog->ExecuteProgram(prog, s,"SV_Shutdown() required");
604                 }
605         }
606         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
607                 if (host_client->active)
608                         SV_DropClient(false); // server shutdown
609
610         NetConn_CloseServerPorts();
611
612         sv.active = false;
613 //
614 // clear structures
615 //
616         memset(&sv, 0, sizeof(sv));
617         memset(svs.clients, 0, svs.maxclients*sizeof(client_t));
618
619         cl.islocalgame = false;
620 }
621
622
623 //============================================================================
624
625 /*
626 ===================
627 Host_GetConsoleCommands
628
629 Add them exactly as if they had been typed at the console
630 ===================
631 */
632 static void Host_GetConsoleCommands (void)
633 {
634         char *cmd;
635
636         while (1)
637         {
638                 cmd = Sys_ConsoleInput ();
639                 if (!cmd)
640                         break;
641                 Cbuf_AddText (cmd);
642         }
643 }
644
645 /*
646 ==================
647 Host_TimeReport
648
649 Returns a time report string, for example for
650 ==================
651 */
652 const char *Host_TimingReport(char *buf, size_t buflen)
653 {
654         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);
655 }
656
657 /*
658 ==================
659 Host_Frame
660
661 Runs all active servers
662 ==================
663 */
664 static void Host_Init(void);
665 void Host_Main(void)
666 {
667         double time1 = 0;
668         double time2 = 0;
669         double time3 = 0;
670         double cl_timer = 0, sv_timer = 0;
671         double clframetime, deltacleantime, olddirtytime, dirtytime;
672         double wait;
673         int pass1, pass2, pass3, i;
674         char vabuf[1024];
675         qboolean playing;
676
677         Host_Init();
678
679         realtime = 0;
680         host_dirtytime = Sys_DirtyTime();
681         for (;;)
682         {
683                 if (setjmp(host_abortframe))
684                 {
685                         SCR_ClearLoadingScreen(false);
686                         continue;                       // something bad happened, or the server disconnected
687                 }
688
689                 olddirtytime = host_dirtytime;
690                 dirtytime = Sys_DirtyTime();
691                 deltacleantime = dirtytime - olddirtytime;
692                 if (deltacleantime < 0)
693                 {
694                         // warn if it's significant
695                         if (deltacleantime < -0.01)
696                                 Con_Printf("Host_Mingled: time stepped backwards (went from %f to %f, difference %f)\n", olddirtytime, dirtytime, deltacleantime);
697                         deltacleantime = 0;
698                 }
699                 else if (deltacleantime >= 1800)
700                 {
701                         Con_Printf("Host_Mingled: time stepped forward (went from %f to %f, difference %f)\n", olddirtytime, dirtytime, deltacleantime);
702                         deltacleantime = 0;
703                 }
704                 realtime += deltacleantime;
705                 host_dirtytime = dirtytime;
706
707                 cl_timer += deltacleantime;
708                 sv_timer += deltacleantime;
709
710                 if (!svs.threaded)
711                 {
712                         svs.perf_acc_realtime += deltacleantime;
713
714                         // Look for clients who have spawned
715                         playing = false;
716                         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
717                                 if(host_client->begun)
718                                         if(host_client->netconnection)
719                                                 playing = true;
720                         if(sv.time < 10)
721                         {
722                                 // don't accumulate time for the first 10 seconds of a match
723                                 // so things can settle
724                                 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;
725                         }
726                         else if(svs.perf_acc_realtime > 5)
727                         {
728                                 svs.perf_cpuload = 1 - svs.perf_acc_sleeptime / svs.perf_acc_realtime;
729                                 svs.perf_lost = svs.perf_acc_lost / svs.perf_acc_realtime;
730                                 if(svs.perf_acc_offset_samples > 0)
731                                 {
732                                         svs.perf_offset_max = svs.perf_acc_offset_max;
733                                         svs.perf_offset_avg = svs.perf_acc_offset / svs.perf_acc_offset_samples;
734                                         svs.perf_offset_sdev = sqrt(svs.perf_acc_offset_squared / svs.perf_acc_offset_samples - svs.perf_offset_avg * svs.perf_offset_avg);
735                                 }
736                                 if(svs.perf_lost > 0 && developer_extra.integer)
737                                         if(playing) // only complain if anyone is looking
738                                                 Con_DPrintf("Server can't keep up: %s\n", Host_TimingReport(vabuf, sizeof(vabuf)));
739                                 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;
740                         }
741                 }
742
743                 if (slowmo.value < 0.00001 && slowmo.value != 0)
744                         Cvar_SetValue("slowmo", 0);
745                 if (host_framerate.value < 0.00001 && host_framerate.value != 0)
746                         Cvar_SetValue("host_framerate", 0);
747
748                 // keep the random time dependent, but not when playing demos/benchmarking
749                 if(!*sv_random_seed.string && !cls.demoplayback)
750                         rand();
751
752                 // get new key events
753                 Key_EventQueue_Unblock();
754                 SndSys_SendKeyEvents();
755                 Sys_SendKeyEvents();
756
757                 NetConn_UpdateSockets();
758
759                 Log_DestBuffer_Flush();
760
761                 // receive packets on each main loop iteration, as the main loop may
762                 // be undersleeping due to select() detecting a new packet
763                 if (sv.active && !svs.threaded)
764                         NetConn_ServerFrame();
765
766                 Curl_Run();
767
768                 // check for commands typed to the host
769                 Host_GetConsoleCommands();
770
771                 // when a server is running we only execute console commands on server frames
772                 // (this mainly allows frikbot .way config files to work properly by staying in sync with the server qc)
773                 // otherwise we execute them on client frames
774                 if (sv.active ? sv_timer > 0 : cl_timer > 0)
775                 {
776                         // process console commands
777 //                      R_TimeReport("preconsole");
778                         CL_VM_PreventInformationLeaks();
779                         Cbuf_Frame();
780 //                      R_TimeReport("console");
781                 }
782
783                 //Con_Printf("%6.0f %6.0f\n", cl_timer * 1000000.0, sv_timer * 1000000.0);
784
785                 // if the accumulators haven't become positive yet, wait a while
786                 if (cls.state == ca_dedicated)
787                         wait = sv_timer * -1000000.0;
788                 else if (!sv.active || svs.threaded)
789                         wait = cl_timer * -1000000.0;
790                 else
791                         wait = max(cl_timer, sv_timer) * -1000000.0;
792
793                 if (!cls.timedemo && wait >= 1)
794                 {
795                         double time0, delta;
796
797                         if(host_maxwait.value <= 0)
798                                 wait = min(wait, 1000000.0);
799                         else
800                                 wait = min(wait, host_maxwait.value * 1000.0);
801                         if(wait < 1)
802                                 wait = 1; // because we cast to int
803
804                         time0 = Sys_DirtyTime();
805                         if (sv_checkforpacketsduringsleep.integer && !sys_usenoclockbutbenchmark.integer && !svs.threaded) {
806                                 NetConn_SleepMicroseconds((int)wait);
807                                 if (cls.state != ca_dedicated)
808                                         NetConn_ClientFrame(); // helps server browser get good ping values
809                                 // TODO can we do the same for ServerFrame? Probably not.
810                         }
811                         else
812                                 Sys_Sleep((int)wait);
813                         delta = Sys_DirtyTime() - time0;
814                         if (delta < 0 || delta >= 1800) delta = 0;
815                         if (!svs.threaded)
816                                 svs.perf_acc_sleeptime += delta;
817 //                      R_TimeReport("sleep");
818                         continue;
819                 }
820
821                 // limit the frametime steps to no more than 100ms each
822                 if (cl_timer > 0.1)
823                         cl_timer = 0.1;
824                 if (sv_timer > 0.1)
825                 {
826                         if (!svs.threaded)
827                                 svs.perf_acc_lost += (sv_timer - 0.1);
828                         sv_timer = 0.1;
829                 }
830
831                 R_TimeReport("---");
832
833         //-------------------
834         //
835         // server operations
836         //
837         //-------------------
838
839                 // limit the frametime steps to no more than 100ms each
840                 if (sv.active && sv_timer > 0 && !svs.threaded)
841                 {
842                         // execute one or more server frames, with an upper limit on how much
843                         // execution time to spend on server frames to avoid freezing the game if
844                         // the server is overloaded, this execution time limit means the game will
845                         // slow down if the server is taking too long.
846                         int framecount, framelimit = 1;
847                         double advancetime, aborttime = 0;
848                         float offset;
849                         prvm_prog_t *prog = SVVM_prog;
850
851                         // run the world state
852                         // don't allow simulation to run too fast or too slow or logic glitches can occur
853
854                         // stop running server frames if the wall time reaches this value
855                         if (sys_ticrate.value <= 0)
856                                 advancetime = sv_timer;
857                         else if (cl.islocalgame && !sv_fixedframeratesingleplayer.integer)
858                         {
859                                 // synchronize to the client frametime, but no less than 10ms and no more than 100ms
860                                 advancetime = bound(0.01, cl_timer, 0.1);
861                         }
862                         else
863                         {
864                                 advancetime = sys_ticrate.value;
865                                 // listen servers can run multiple server frames per client frame
866                                 framelimit = cl_maxphysicsframesperserverframe.integer;
867                                 aborttime = Sys_DirtyTime() + 0.1;
868                         }
869                         if(slowmo.value > 0 && slowmo.value < 1)
870                                 advancetime = min(advancetime, 0.1 / slowmo.value);
871                         else
872                                 advancetime = min(advancetime, 0.1);
873
874                         if(advancetime > 0)
875                         {
876                                 offset = Sys_DirtyTime() - dirtytime;if (offset < 0 || offset >= 1800) offset = 0;
877                                 offset += sv_timer;
878                                 ++svs.perf_acc_offset_samples;
879                                 svs.perf_acc_offset += offset;
880                                 svs.perf_acc_offset_squared += offset * offset;
881                                 if(svs.perf_acc_offset_max < offset)
882                                         svs.perf_acc_offset_max = offset;
883                         }
884
885                         // only advance time if not paused
886                         // the game also pauses in singleplayer when menu or console is used
887                         sv.frametime = advancetime * slowmo.value;
888                         if (host_framerate.value)
889                                 sv.frametime = host_framerate.value;
890                         if (sv.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive || cl.csqc_paused)))
891                                 sv.frametime = 0;
892
893                         for (framecount = 0;framecount < framelimit && sv_timer > 0;framecount++)
894                         {
895                                 sv_timer -= advancetime;
896
897                                 // move things around and think unless paused
898                                 if (sv.frametime)
899                                         SV_Physics();
900
901                                 // if this server frame took too long, break out of the loop
902                                 if (framelimit > 1 && Sys_DirtyTime() >= aborttime)
903                                         break;
904                         }
905                         R_TimeReport("serverphysics");
906
907                         // send all messages to the clients
908                         SV_SendClientMessages();
909
910                         if (sv.paused == 1 && realtime > sv.pausedstart && sv.pausedstart > 0) {
911                                 prog->globals.fp[OFS_PARM0] = realtime - sv.pausedstart;
912                                 PRVM_serverglobalfloat(time) = sv.time;
913                                 prog->ExecuteProgram(prog, PRVM_serverfunction(SV_PausedTic), "QC function SV_PausedTic is missing");
914                         }
915
916                         // send an heartbeat if enough time has passed since the last one
917                         NetConn_Heartbeat(0);
918                         R_TimeReport("servernetwork");
919                 }
920                 else if (!svs.threaded)
921                 {
922                         // don't let r_speeds display jump around
923                         R_TimeReport("serverphysics");
924                         R_TimeReport("servernetwork");
925                 }
926
927         //-------------------
928         //
929         // client operations
930         //
931         //-------------------
932
933                 if (cls.state != ca_dedicated && (cl_timer > 0 || cls.timedemo || ((vid_activewindow ? cl_maxfps : cl_maxidlefps).value < 1)))
934                 {
935                         R_TimeReport("---");
936                         Collision_Cache_NewFrame();
937                         R_TimeReport("photoncache");
938                         // decide the simulation time
939                         if (cls.capturevideo.active)
940                         {
941                                 //***
942                                 if (cls.capturevideo.realtime)
943                                         clframetime = cl.realframetime = max(cl_timer, 1.0 / cls.capturevideo.framerate);
944                                 else
945                                 {
946                                         clframetime = 1.0 / cls.capturevideo.framerate;
947                                         cl.realframetime = max(cl_timer, clframetime);
948                                 }
949                         }
950                         else if (vid_activewindow && cl_maxfps.value >= 1 && !cls.timedemo)
951                         {
952                                 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxfps.value);
953                                 // when running slow, we need to sleep to keep input responsive
954                                 wait = bound(0, cl_maxfps_alwayssleep.value * 1000, 100000);
955                                 if (wait > 0)
956                                         Sys_Sleep((int)wait);
957                         }
958                         else if (!vid_activewindow && cl_maxidlefps.value >= 1 && !cls.timedemo)
959                                 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxidlefps.value);
960                         else
961                                 clframetime = cl.realframetime = cl_timer;
962
963                         // apply slowmo scaling
964                         clframetime *= cl.movevars_timescale;
965                         // scale playback speed of demos by slowmo cvar
966                         if (cls.demoplayback)
967                         {
968                                 clframetime *= slowmo.value;
969                                 // if demo playback is paused, don't advance time at all
970                                 if (cls.demopaused)
971                                         clframetime = 0;
972                         }
973                         else
974                         {
975                                 // host_framerate overrides all else
976                                 if (host_framerate.value)
977                                         clframetime = host_framerate.value;
978
979                                 if (cl.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive || cl.csqc_paused)))
980                                         clframetime = 0;
981                         }
982
983                         if (cls.timedemo)
984                                 clframetime = cl.realframetime = cl_timer;
985
986                         // deduct the frame time from the accumulator
987                         cl_timer -= cl.realframetime;
988
989                         cl.oldtime = cl.time;
990                         cl.time += clframetime;
991
992                         // update video
993                         if (host_speeds.integer)
994                                 time1 = Sys_DirtyTime();
995                         R_TimeReport("pre-input");
996
997                         // Collect input into cmd
998                         CL_Input();
999
1000                         R_TimeReport("input");
1001
1002                         // check for new packets
1003                         NetConn_ClientFrame();
1004
1005                         // read a new frame from a demo if needed
1006                         CL_ReadDemoMessage();
1007                         R_TimeReport("clientnetwork");
1008
1009                         // now that packets have been read, send input to server
1010                         CL_SendMove();
1011                         R_TimeReport("sendmove");
1012
1013                         // update client world (interpolate entities, create trails, etc)
1014                         CL_UpdateWorld();
1015                         R_TimeReport("lerpworld");
1016
1017                         CL_Video_Frame();
1018
1019                         R_TimeReport("client");
1020
1021                         CL_UpdateScreen();
1022                         CL_MeshEntities_Reset();
1023                         R_TimeReport("render");
1024
1025                         if (host_speeds.integer)
1026                                 time2 = Sys_DirtyTime();
1027
1028                         // update audio
1029                         if(cl.csqc_usecsqclistener)
1030                         {
1031                                 S_Update(&cl.csqc_listenermatrix);
1032                                 cl.csqc_usecsqclistener = false;
1033                         }
1034                         else
1035                                 S_Update(&r_refdef.view.matrix);
1036
1037                         CDAudio_Update();
1038                         R_TimeReport("audio");
1039
1040                         // reset gathering of mouse input
1041                         in_mouse_x = in_mouse_y = 0;
1042
1043                         if (host_speeds.integer)
1044                         {
1045                                 pass1 = (int)((time1 - time3)*1000000);
1046                                 time3 = Sys_DirtyTime();
1047                                 pass2 = (int)((time2 - time1)*1000000);
1048                                 pass3 = (int)((time3 - time2)*1000000);
1049                                 Con_Printf("%6ius total %6ius server %6ius gfx %6ius snd\n",
1050                                                         pass1+pass2+pass3, pass1, pass2, pass3);
1051                         }
1052                 }
1053
1054 #if MEMPARANOIA
1055                 Mem_CheckSentinelsGlobal();
1056 #else
1057                 if (developer_memorydebug.integer)
1058                         Mem_CheckSentinelsGlobal();
1059 #endif
1060
1061                 // if there is some time remaining from this frame, reset the timers
1062                 if (cl_timer >= 0)
1063                         cl_timer = 0;
1064                 if (sv_timer >= 0)
1065                 {
1066                         if (!svs.threaded)
1067                                 svs.perf_acc_lost += sv_timer;
1068                         sv_timer = 0;
1069                 }
1070
1071                 host_framecount++;
1072         }
1073 }
1074
1075 //============================================================================
1076
1077 qboolean vid_opened = false;
1078 void Host_StartVideo(void)
1079 {
1080         if (!vid_opened && cls.state != ca_dedicated)
1081         {
1082                 vid_opened = true;
1083                 // make sure we open sockets before opening video because the Windows Firewall "unblock?" dialog can screw up the graphics context on some graphics drivers
1084                 NetConn_UpdateSockets();
1085                 VID_Start();
1086                 CDAudio_Startup();
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                 CDAudio_Init();
1290                 Key_Init();
1291                 CL_Init();
1292         }
1293
1294         // save off current state of aliases, commands and cvars for later restore if FS_GameDir_f is called
1295         // NOTE: menu commands are freed by Cmd_RestoreInitState
1296         Cmd_SaveInitState();
1297
1298         // FIXME: put this into some neat design, but the menu should be allowed to crash
1299         // without crashing the whole game, so this should just be a short-time solution
1300
1301         // here comes the not so critical stuff
1302         if (setjmp(host_abortframe)) {
1303                 return;
1304         }
1305
1306         Host_AddConfigText();
1307         Cbuf_Execute();
1308
1309         // if stuffcmds wasn't run, then quake.rc is probably missing, use default
1310         if (!host_stuffcmdsrun)
1311         {
1312                 Cbuf_AddText("exec default.cfg\nexec " CONFIGFILENAME "\nexec autoexec.cfg\nstuffcmds\n");
1313                 Cbuf_Execute();
1314         }
1315
1316         // put up the loading image so the user doesn't stare at a black screen...
1317         SCR_BeginLoadingPlaque(true);
1318
1319 #ifdef CONFIG_MENU
1320         if (cls.state != ca_dedicated)
1321         {
1322                 MR_Init();
1323         }
1324 #endif
1325
1326         // check for special benchmark mode
1327 // 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)
1328         i = COM_CheckParm("-benchmark");
1329         if (i && i + 1 < com_argc)
1330         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1331         {
1332                 Cbuf_AddText(va(vabuf, sizeof(vabuf), "timedemo %s\n", com_argv[i + 1]));
1333                 Cbuf_Execute();
1334         }
1335
1336         // check for special demo mode
1337 // COMMANDLINEOPTION: Client: -demo <demoname> runs a playdemo and quits
1338         i = COM_CheckParm("-demo");
1339         if (i && i + 1 < com_argc)
1340         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1341         {
1342                 Cbuf_AddText(va(vabuf, sizeof(vabuf), "playdemo %s\n", com_argv[i + 1]));
1343                 Cbuf_Execute();
1344         }
1345
1346 // COMMANDLINEOPTION: Client: -capturedemo <demoname> captures a playdemo and quits
1347         i = COM_CheckParm("-capturedemo");
1348         if (i && i + 1 < com_argc)
1349         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1350         {
1351                 Cbuf_AddText(va(vabuf, sizeof(vabuf), "playdemo %s\ncl_capturevideo 1\n", com_argv[i + 1]));
1352                 Cbuf_Execute();
1353         }
1354
1355         if (cls.state == ca_dedicated || COM_CheckParm("-listen"))
1356         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1357         {
1358                 Cbuf_AddText("startmap_dm\n");
1359                 Cbuf_Execute();
1360         }
1361
1362         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1363         {
1364 #ifdef CONFIG_MENU
1365                 Cbuf_AddText("togglemenu 1\n");
1366 #endif
1367                 Cbuf_Execute();
1368         }
1369
1370         Con_DPrint("========Initialized=========\n");
1371
1372         //Host_StartVideo();
1373
1374         if (cls.state != ca_dedicated)
1375                 SV_StartThread();
1376 }
1377
1378
1379 /*
1380 ===============
1381 Host_Shutdown
1382
1383 FIXME: this is a callback from Sys_Quit and Sys_Error.  It would be better
1384 to run quit through here before the final handoff to the sys code.
1385 ===============
1386 */
1387 void Host_Shutdown(void)
1388 {
1389         static qboolean isdown = false;
1390
1391         if (isdown)
1392         {
1393                 Con_Print("recursive shutdown\n");
1394                 return;
1395         }
1396         if (setjmp(host_abortframe))
1397         {
1398                 Con_Print("aborted the quitting frame?!?\n");
1399                 return;
1400         }
1401         isdown = true;
1402
1403         // be quiet while shutting down
1404         S_StopAllSounds();
1405
1406         // end the server thread
1407         if (svs.threaded)
1408                 SV_StopThread();
1409
1410         // disconnect client from server if active
1411         CL_Disconnect();
1412
1413         // shut down local server if active
1414         SV_LockThreadMutex();
1415         Host_ShutdownServer ();
1416         SV_UnlockThreadMutex();
1417
1418 #ifdef CONFIG_MENU
1419         // Shutdown menu
1420         if(MR_Shutdown)
1421                 MR_Shutdown();
1422 #endif
1423
1424         // AK shutdown PRVM
1425         // AK hmm, no PRVM_Shutdown(); yet
1426
1427         CL_Video_Shutdown();
1428
1429         Host_SaveConfig();
1430
1431         CDAudio_Shutdown ();
1432         S_Terminate ();
1433         Curl_Shutdown ();
1434         NetConn_Shutdown ();
1435         //PR_Shutdown ();
1436
1437         if (cls.state != ca_dedicated)
1438         {
1439                 R_Modules_Shutdown();
1440                 VID_Shutdown();
1441         }
1442
1443         SV_StopThread();
1444         Thread_Shutdown();
1445         Cmd_Shutdown();
1446         Key_Shutdown();
1447         CL_Shutdown();
1448         Sys_Shutdown();
1449         Log_Close();
1450         Crypto_Shutdown();
1451
1452         Host_UnlockSession();
1453
1454         S_Shutdown();
1455         Con_Shutdown();
1456         Memory_Shutdown();
1457 }
1458