Make sv_cheats instant. No need to restart the map anymore.
[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 "taskqueue.h"
33 #include "thread.h"
34 #include "utf8lib.h"
35
36 /*
37
38 A server can always be started, even if the system started out as a client
39 to a remote system.
40
41 A client can NOT be started if the system started as a dedicated server.
42
43 Memory is cleared / released when a server or client begins, not when they end.
44
45 */
46
47 // how many frames have occurred
48 // (checked by Host_Error and Host_SaveConfig_f)
49 int host_framecount = 0;
50 // LadyHavoc: set when quit is executed
51 qboolean host_shuttingdown = false;
52
53 // the accumulated mainloop time since application started (with filtering), without any slowmo or clamping
54 double realtime;
55 // the main loop wall time for this frame
56 double host_dirtytime;
57
58 // current client
59 client_t *host_client;
60
61 jmp_buf host_abortframe;
62
63 // pretend frames take this amount of time (in seconds), 0 = realtime
64 cvar_t host_framerate = {CVAR_CLIENT | CVAR_SERVER, "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"};
65 cvar_t cl_maxphysicsframesperserverframe = {CVAR_CLIENT, "cl_maxphysicsframesperserverframe","10", "maximum number of physics frames per server frame"};
66 // shows time used by certain subsystems
67 cvar_t host_speeds = {CVAR_CLIENT | CVAR_SERVER, "host_speeds","0", "reports how much time is used in server/graphics/sound"};
68 cvar_t host_maxwait = {CVAR_CLIENT | CVAR_SERVER, "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."};
69 cvar_t cl_minfps = {CVAR_CLIENT | CVAR_SAVE, "cl_minfps", "40", "minimum fps target - while the rendering performance is below this, it will drift toward lower quality"};
70 cvar_t cl_minfps_fade = {CVAR_CLIENT | CVAR_SAVE, "cl_minfps_fade", "1", "how fast the quality adapts to varying framerate"};
71 cvar_t cl_minfps_qualitymax = {CVAR_CLIENT | CVAR_SAVE, "cl_minfps_qualitymax", "1", "highest allowed drawdistance multiplier"};
72 cvar_t cl_minfps_qualitymin = {CVAR_CLIENT | CVAR_SAVE, "cl_minfps_qualitymin", "0.25", "lowest allowed drawdistance multiplier"};
73 cvar_t cl_minfps_qualitymultiply = {CVAR_CLIENT | 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)"};
74 cvar_t cl_minfps_qualityhysteresis = {CVAR_CLIENT | CVAR_SAVE, "cl_minfps_qualityhysteresis", "0.05", "reduce all quality increments by this to reduce flickering"};
75 cvar_t cl_minfps_qualitystepmax = {CVAR_CLIENT | CVAR_SAVE, "cl_minfps_qualitystepmax", "0.1", "maximum quality change in a single frame"};
76 cvar_t cl_minfps_force = {CVAR_CLIENT, "cl_minfps_force", "0", "also apply quality reductions in timedemo/capturevideo"};
77 cvar_t cl_maxfps = {CVAR_CLIENT | 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)"};
78 cvar_t cl_maxfps_alwayssleep = {CVAR_CLIENT, "cl_maxfps_alwayssleep","1", "gives up some processing time to other applications each frame, value in milliseconds, disabled if cl_maxfps is 0"};
79 cvar_t cl_maxidlefps = {CVAR_CLIENT | CVAR_SAVE, "cl_maxidlefps", "20", "maximum fps cap when the game is not the active window (makes cpu time available to other programs"};
80
81 cvar_t developer = {CVAR_CLIENT | CVAR_SERVER | 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"};
82 cvar_t developer_extra = {CVAR_CLIENT | CVAR_SERVER, "developer_extra", "0", "prints additional debugging messages, often very verbose!"};
83 cvar_t developer_insane = {CVAR_CLIENT | CVAR_SERVER, "developer_insane", "0", "prints huge streams of information about internal workings, entire contents of files being read/written, etc.  Not recommended!"};
84 cvar_t developer_loadfile = {CVAR_CLIENT | CVAR_SERVER, "developer_loadfile","0", "prints name and size of every file loaded via the FS_LoadFile function (which is almost everything)"};
85 cvar_t developer_loading = {CVAR_CLIENT | CVAR_SERVER, "developer_loading","0", "prints information about files as they are loaded or unloaded successfully"};
86 cvar_t developer_entityparsing = {CVAR_CLIENT, "developer_entityparsing", "0", "prints detailed network entities information each time a packet is received"};
87
88 cvar_t timestamps = {CVAR_CLIENT | CVAR_SERVER | CVAR_SAVE, "timestamps", "0", "prints timestamps on console messages"};
89 cvar_t timeformat = {CVAR_CLIENT | CVAR_SERVER | CVAR_SAVE, "timeformat", "[%Y-%m-%d %H:%M:%S] ", "time format to use on timestamped console messages"};
90
91 cvar_t sessionid = {CVAR_CLIENT | CVAR_SERVER | 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 (.)"};
92 cvar_t locksession = {CVAR_CLIENT | CVAR_SERVER, "locksession", "0", "Lock the session? 0 = no, 1 = yes and abort on failure, 2 = yes and continue on failure"};
93
94 /*
95 ================
96 Host_AbortCurrentFrame
97
98 aborts the current host frame and goes on with the next one
99 ================
100 */
101 void Host_AbortCurrentFrame(void) DP_FUNC_NORETURN;
102 void Host_AbortCurrentFrame(void)
103 {
104         // in case we were previously nice, make us mean again
105         Sys_MakeProcessMean();
106
107         longjmp (host_abortframe, 1);
108 }
109
110 /*
111 ================
112 Host_Error
113
114 This shuts down both the client and server
115 ================
116 */
117 void Host_Error (const char *error, ...)
118 {
119         static char hosterrorstring1[MAX_INPUTLINE]; // THREAD UNSAFE
120         static char hosterrorstring2[MAX_INPUTLINE]; // THREAD UNSAFE
121         static qboolean hosterror = false;
122         va_list argptr;
123
124         // turn off rcon redirect if it was active when the crash occurred
125         // to prevent loops when it is a networking problem
126         Con_Rcon_Redirect_Abort();
127
128         va_start (argptr,error);
129         dpvsnprintf (hosterrorstring1,sizeof(hosterrorstring1),error,argptr);
130         va_end (argptr);
131
132         Con_Errorf("Host_Error: %s\n", hosterrorstring1);
133
134         // LadyHavoc: if crashing very early, or currently shutting down, do
135         // Sys_Error instead
136         if (host_framecount < 3 || host_shuttingdown)
137                 Sys_Error ("Host_Error: %s", hosterrorstring1);
138
139         if (hosterror)
140                 Sys_Error ("Host_Error: recursively entered (original error was: %s    new error is: %s)", hosterrorstring2, hosterrorstring1);
141         hosterror = true;
142
143         strlcpy(hosterrorstring2, hosterrorstring1, sizeof(hosterrorstring2));
144
145         CL_Parse_DumpPacket();
146
147         CL_Parse_ErrorCleanUp();
148
149         //PR_Crash();
150
151         // print out where the crash happened, if it was caused by QC (and do a cleanup)
152         PRVM_Crash(SVVM_prog);
153         PRVM_Crash(CLVM_prog);
154 #ifdef CONFIG_MENU
155         PRVM_Crash(MVM_prog);
156 #endif
157
158         cl.csqc_loaded = false;
159         Cvar_SetValueQuick(&csqc_progcrc, -1);
160         Cvar_SetValueQuick(&csqc_progsize, -1);
161
162         SV_LockThreadMutex();
163         Host_ShutdownServer ();
164         SV_UnlockThreadMutex();
165
166         if (cls.state == ca_dedicated)
167                 Sys_Error ("Host_Error: %s",hosterrorstring2);  // dedicated servers exit
168
169         CL_Disconnect ();
170         cls.demonum = -1;
171
172         hosterror = false;
173
174         Host_AbortCurrentFrame();
175 }
176
177 static void Host_ServerOptions (void)
178 {
179         int i;
180
181         // general default
182         svs.maxclients = 8;
183
184 // COMMANDLINEOPTION: Server: -dedicated [playerlimit] starts a dedicated server (with a command console), default playerlimit is 8
185 // COMMANDLINEOPTION: Server: -listen [playerlimit] starts a multiplayer server with graphical client, like singleplayer but other players can connect, default playerlimit is 8
186         // if no client is in the executable or -dedicated is specified on
187         // commandline, start a dedicated server
188         i = COM_CheckParm ("-dedicated");
189         if (i || !cl_available)
190         {
191                 cls.state = ca_dedicated;
192                 // check for -dedicated specifying how many players
193                 if (i && i + 1 < com_argc && atoi (com_argv[i+1]) >= 1)
194                         svs.maxclients = atoi (com_argv[i+1]);
195                 if (COM_CheckParm ("-listen"))
196                         Con_Printf ("Only one of -dedicated or -listen can be specified\n");
197                 // default sv_public on for dedicated servers (often hosted by serious administrators), off for listen servers (often hosted by clueless users)
198                 Cvar_SetValue(&cvars_all, "sv_public", 1);
199         }
200         else if (cl_available)
201         {
202                 // client exists and not dedicated, check if -listen is specified
203                 cls.state = ca_disconnected;
204                 i = COM_CheckParm ("-listen");
205                 if (i)
206                 {
207                         // default players unless specified
208                         if (i + 1 < com_argc && atoi (com_argv[i+1]) >= 1)
209                                 svs.maxclients = atoi (com_argv[i+1]);
210                 }
211                 else
212                 {
213                         // default players in some games, singleplayer in most
214                         if (gamemode != GAME_GOODVSBAD2 && !IS_NEXUIZ_DERIVED(gamemode) && gamemode != GAME_BATTLEMECH)
215                                 svs.maxclients = 1;
216                 }
217         }
218
219         svs.maxclients = svs.maxclients_next = bound(1, svs.maxclients, MAX_SCOREBOARD);
220
221         svs.clients = (client_t *)Mem_Alloc(sv_mempool, sizeof(client_t) * svs.maxclients);
222
223         if (svs.maxclients > 1 && !deathmatch.integer && !coop.integer)
224                 Cvar_SetValueQuick(&deathmatch, 1);
225 }
226
227 /*
228 =======================
229 Host_InitLocal
230 ======================
231 */
232 void Host_SaveConfig_f(cmd_state_t *cmd);
233 void Host_LoadConfig_f(cmd_state_t *cmd);
234 extern cvar_t sv_writepicture_quality;
235 extern cvar_t r_texture_jpeg_fastpicmip;
236 static void Host_InitLocal (void)
237 {
238         Cmd_AddCommand(&cmd_client, "saveconfig", Host_SaveConfig_f, "save settings to config.cfg (or a specified filename) immediately (also automatic when quitting)");
239         Cmd_AddCommand(&cmd_client, "loadconfig", Host_LoadConfig_f, "reset everything and reload configs");
240         Cmd_AddCommand(&cmd_server, "saveconfig", Host_SaveConfig_f, "save settings to config.cfg (or a specified filename) immediately (also automatic when quitting)");
241         Cmd_AddCommand(&cmd_server, "loadconfig", Host_LoadConfig_f, "reset everything and reload configs");
242
243         Cvar_RegisterVariable (&cl_maxphysicsframesperserverframe);
244         Cvar_RegisterVariable (&host_framerate);
245         Cvar_RegisterVariable (&host_speeds);
246         Cvar_RegisterVariable (&host_maxwait);
247         Cvar_RegisterVariable (&cl_minfps);
248         Cvar_RegisterVariable (&cl_minfps_fade);
249         Cvar_RegisterVariable (&cl_minfps_qualitymax);
250         Cvar_RegisterVariable (&cl_minfps_qualitymin);
251         Cvar_RegisterVariable (&cl_minfps_qualitystepmax);
252         Cvar_RegisterVariable (&cl_minfps_qualityhysteresis);
253         Cvar_RegisterVariable (&cl_minfps_qualitymultiply);
254         Cvar_RegisterVariable (&cl_minfps_force);
255         Cvar_RegisterVariable (&cl_maxfps);
256         Cvar_RegisterVariable (&cl_maxfps_alwayssleep);
257         Cvar_RegisterVariable (&cl_maxidlefps);
258
259         Cvar_RegisterVariable (&developer);
260         Cvar_RegisterVariable (&developer_extra);
261         Cvar_RegisterVariable (&developer_insane);
262         Cvar_RegisterVariable (&developer_loadfile);
263         Cvar_RegisterVariable (&developer_loading);
264         Cvar_RegisterVariable (&developer_entityparsing);
265
266         Cvar_RegisterVariable (&timestamps);
267         Cvar_RegisterVariable (&timeformat);
268
269         Cvar_RegisterVariable (&sv_writepicture_quality);
270         Cvar_RegisterVariable (&r_texture_jpeg_fastpicmip);
271 }
272
273
274 /*
275 ===============
276 Host_SaveConfig_f
277
278 Writes key bindings and archived cvars to config.cfg
279 ===============
280 */
281 static void Host_SaveConfig_to(const char *file)
282 {
283         qfile_t *f;
284
285 // dedicated servers initialize the host but don't parse and set the
286 // config.cfg cvars
287         // LadyHavoc: don't save a config if it crashed in startup
288         if (host_framecount >= 3 && cls.state != ca_dedicated && !COM_CheckParm("-benchmark") && !COM_CheckParm("-capturedemo"))
289         {
290                 f = FS_OpenRealFile(file, "wb", false);
291                 if (!f)
292                 {
293                         Con_Errorf("Couldn't write %s.\n", file);
294                         return;
295                 }
296
297                 Key_WriteBindings (f);
298                 Cvar_WriteVariables (&cvars_all, f);
299
300                 FS_Close (f);
301         }
302 }
303 void Host_SaveConfig(void)
304 {
305         Host_SaveConfig_to(CONFIGFILENAME);
306 }
307 void Host_SaveConfig_f(cmd_state_t *cmd)
308 {
309         const char *file = CONFIGFILENAME;
310
311         if(Cmd_Argc(cmd) >= 2) {
312                 file = Cmd_Argv(cmd, 1);
313                 Con_Printf("Saving to %s\n", file);
314         }
315
316         Host_SaveConfig_to(file);
317 }
318
319 static void Host_AddConfigText(cmd_state_t *cmd)
320 {
321         // set up the default startmap_sp and startmap_dm aliases (mods can
322         // override these) and then execute the quake.rc startup script
323         if (gamemode == GAME_NEHAHRA)
324                 Cbuf_InsertText(cmd, "alias startmap_sp \"map nehstart\"\nalias startmap_dm \"map nehstart\"\nexec " STARTCONFIGFILENAME "\n");
325         else if (gamemode == GAME_TRANSFUSION)
326                 Cbuf_InsertText(cmd, "alias startmap_sp \"map e1m1\"\n""alias startmap_dm \"map bb1\"\nexec " STARTCONFIGFILENAME "\n");
327         else if (gamemode == GAME_TEU)
328                 Cbuf_InsertText(cmd, "alias startmap_sp \"map start\"\nalias startmap_dm \"map start\"\nexec teu.rc\n");
329         else
330                 Cbuf_InsertText(cmd, "alias startmap_sp \"map start\"\nalias startmap_dm \"map start\"\nexec " STARTCONFIGFILENAME "\n");
331 }
332
333 /*
334 ===============
335 Host_LoadConfig_f
336
337 Resets key bindings and cvars to defaults and then reloads scripts
338 ===============
339 */
340 void Host_LoadConfig_f(cmd_state_t *cmd)
341 {
342         // reset all cvars, commands and aliases to init values
343         Cmd_RestoreInitState();
344 #ifdef CONFIG_MENU
345         // prepend a menu restart command to execute after the config
346         Cbuf_InsertText(&cmd_client, "\nmenu_restart\n");
347 #endif
348         // reset cvars to their defaults, and then exec startup scripts again
349         Host_AddConfigText(&cmd_client);
350 }
351
352 /*
353 =================
354 SV_ClientPrint
355
356 Sends text across to be displayed
357 FIXME: make this just a stuffed echo?
358 =================
359 */
360 void SV_ClientPrint(const char *msg)
361 {
362         if (host_client->netconnection)
363         {
364                 MSG_WriteByte(&host_client->netconnection->message, svc_print);
365                 MSG_WriteString(&host_client->netconnection->message, msg);
366         }
367 }
368
369 /*
370 =================
371 SV_ClientPrintf
372
373 Sends text across to be displayed
374 FIXME: make this just a stuffed echo?
375 =================
376 */
377 void SV_ClientPrintf(const char *fmt, ...)
378 {
379         va_list argptr;
380         char msg[MAX_INPUTLINE];
381
382         va_start(argptr,fmt);
383         dpvsnprintf(msg,sizeof(msg),fmt,argptr);
384         va_end(argptr);
385
386         SV_ClientPrint(msg);
387 }
388
389 /*
390 =================
391 SV_BroadcastPrint
392
393 Sends text to all active clients
394 =================
395 */
396 void SV_BroadcastPrint(const char *msg)
397 {
398         int i;
399         client_t *client;
400
401         for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
402         {
403                 if (client->active && client->netconnection)
404                 {
405                         MSG_WriteByte(&client->netconnection->message, svc_print);
406                         MSG_WriteString(&client->netconnection->message, msg);
407                 }
408         }
409
410         if (sv_echobprint.integer && cls.state == ca_dedicated)
411                 Con_Print(msg);
412 }
413
414 /*
415 =================
416 SV_BroadcastPrintf
417
418 Sends text to all active clients
419 =================
420 */
421 void SV_BroadcastPrintf(const char *fmt, ...)
422 {
423         va_list argptr;
424         char msg[MAX_INPUTLINE];
425
426         va_start(argptr,fmt);
427         dpvsnprintf(msg,sizeof(msg),fmt,argptr);
428         va_end(argptr);
429
430         SV_BroadcastPrint(msg);
431 }
432
433 /*
434 =================
435 Host_ClientCommands
436
437 Send text over to the client to be executed
438 =================
439 */
440 void Host_ClientCommands(const char *fmt, ...)
441 {
442         va_list argptr;
443         char string[MAX_INPUTLINE];
444
445         if (!host_client->netconnection)
446                 return;
447
448         va_start(argptr,fmt);
449         dpvsnprintf(string, sizeof(string), fmt, argptr);
450         va_end(argptr);
451
452         MSG_WriteByte(&host_client->netconnection->message, svc_stufftext);
453         MSG_WriteString(&host_client->netconnection->message, string);
454 }
455
456 /*
457 =====================
458 SV_DropClient
459
460 Called when the player is getting totally kicked off the host
461 if (crash = true), don't bother sending signofs
462 =====================
463 */
464 void SV_DropClient(qboolean crash)
465 {
466         prvm_prog_t *prog = SVVM_prog;
467         int i;
468         Con_Printf("Client \"%s\" dropped\n", host_client->name);
469
470         SV_StopDemoRecording(host_client);
471
472         // make sure edict is not corrupt (from a level change for example)
473         host_client->edict = PRVM_EDICT_NUM(host_client - svs.clients + 1);
474
475         if (host_client->netconnection)
476         {
477                 // tell the client to be gone
478                 if (!crash)
479                 {
480                         // LadyHavoc: no opportunity for resending, so use unreliable 3 times
481                         unsigned char bufdata[8];
482                         sizebuf_t buf;
483                         memset(&buf, 0, sizeof(buf));
484                         buf.data = bufdata;
485                         buf.maxsize = sizeof(bufdata);
486                         MSG_WriteByte(&buf, svc_disconnect);
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                         NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, 0, false);
490                 }
491         }
492
493         // call qc ClientDisconnect function
494         // LadyHavoc: don't call QC if server is dead (avoids recursive
495         // Host_Error in some mods when they run out of edicts)
496         if (host_client->clientconnectcalled && sv.active && host_client->edict)
497         {
498                 // call the prog function for removing a client
499                 // this will set the body to a dead frame, among other things
500                 int saveSelf = PRVM_serverglobaledict(self);
501                 host_client->clientconnectcalled = false;
502                 PRVM_serverglobalfloat(time) = sv.time;
503                 PRVM_serverglobaledict(self) = PRVM_EDICT_TO_PROG(host_client->edict);
504                 prog->ExecuteProgram(prog, PRVM_serverfunction(ClientDisconnect), "QC function ClientDisconnect is missing");
505                 PRVM_serverglobaledict(self) = saveSelf;
506         }
507
508         if (host_client->netconnection)
509         {
510                 // break the net connection
511                 NetConn_Close(host_client->netconnection);
512                 host_client->netconnection = NULL;
513         }
514
515         // if a download is active, close it
516         if (host_client->download_file)
517         {
518                 Con_DPrintf("Download of %s aborted when %s dropped\n", host_client->download_name, host_client->name);
519                 FS_Close(host_client->download_file);
520                 host_client->download_file = NULL;
521                 host_client->download_name[0] = 0;
522                 host_client->download_expectedposition = 0;
523                 host_client->download_started = false;
524         }
525
526         // remove leaving player from scoreboard
527         host_client->name[0] = 0;
528         host_client->colors = 0;
529         host_client->frags = 0;
530         // send notification to all clients
531         // get number of client manually just to make sure we get it right...
532         i = host_client - svs.clients;
533         MSG_WriteByte (&sv.reliable_datagram, svc_updatename);
534         MSG_WriteByte (&sv.reliable_datagram, i);
535         MSG_WriteString (&sv.reliable_datagram, host_client->name);
536         MSG_WriteByte (&sv.reliable_datagram, svc_updatecolors);
537         MSG_WriteByte (&sv.reliable_datagram, i);
538         MSG_WriteByte (&sv.reliable_datagram, host_client->colors);
539         MSG_WriteByte (&sv.reliable_datagram, svc_updatefrags);
540         MSG_WriteByte (&sv.reliable_datagram, i);
541         MSG_WriteShort (&sv.reliable_datagram, host_client->frags);
542
543         // free the client now
544         if (host_client->entitydatabase)
545                 EntityFrame_FreeDatabase(host_client->entitydatabase);
546         if (host_client->entitydatabase4)
547                 EntityFrame4_FreeDatabase(host_client->entitydatabase4);
548         if (host_client->entitydatabase5)
549                 EntityFrame5_FreeDatabase(host_client->entitydatabase5);
550
551         if (sv.active)
552         {
553                 // clear a fields that matter to DP_SV_CLIENTNAME and DP_SV_CLIENTCOLORS, and also frags
554                 PRVM_ED_ClearEdict(prog, host_client->edict);
555         }
556
557         // clear the client struct (this sets active to false)
558         memset(host_client, 0, sizeof(*host_client));
559
560         // update server listing on the master because player count changed
561         // (which the master uses for filtering empty/full servers)
562         NetConn_Heartbeat(1);
563
564         if (sv.loadgame)
565         {
566                 for (i = 0;i < svs.maxclients;i++)
567                         if (svs.clients[i].active && !svs.clients[i].spawned)
568                                 break;
569                 if (i == svs.maxclients)
570                 {
571                         Con_Printf("Loaded game, everyone rejoined - unpausing\n");
572                         sv.paused = sv.loadgame = false; // we're basically done with loading now
573                 }
574         }
575 }
576
577 /*
578 ==================
579 Host_ShutdownServer
580
581 This only happens at the end of a game, not between levels
582 ==================
583 */
584 void Host_ShutdownServer(void)
585 {
586         prvm_prog_t *prog = SVVM_prog;
587         int i;
588
589         Con_DPrintf("Host_ShutdownServer\n");
590
591         if (!sv.active)
592                 return;
593
594         NetConn_Heartbeat(2);
595         NetConn_Heartbeat(2);
596
597 // make sure all the clients know we're disconnecting
598         World_End(&sv.world);
599         if(prog->loaded)
600         {
601                 if(PRVM_serverfunction(SV_Shutdown))
602                 {
603                         func_t s = PRVM_serverfunction(SV_Shutdown);
604                         PRVM_serverglobalfloat(time) = sv.time;
605                         PRVM_serverfunction(SV_Shutdown) = 0; // prevent it from getting called again
606                         prog->ExecuteProgram(prog, s,"SV_Shutdown() required");
607                 }
608         }
609         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
610                 if (host_client->active)
611                         SV_DropClient(false); // server shutdown
612
613         NetConn_CloseServerPorts();
614
615         sv.active = false;
616 //
617 // clear structures
618 //
619         memset(&sv, 0, sizeof(sv));
620         memset(svs.clients, 0, svs.maxclients*sizeof(client_t));
621
622         cl.islocalgame = false;
623 }
624
625
626 //============================================================================
627
628 /*
629 ===================
630 Host_GetConsoleCommands
631
632 Add them exactly as if they had been typed at the console
633 ===================
634 */
635 static void Host_GetConsoleCommands (void)
636 {
637         char *line;
638
639         while ((line = Sys_ConsoleInput()))
640         {
641                 if (cls.state == ca_dedicated)
642                         Cbuf_AddText(&cmd_server, line);
643                 else
644                         Cbuf_AddText(&cmd_client, line);
645         }
646 }
647
648 /*
649 ==================
650 Host_TimeReport
651
652 Returns a time report string, for example for
653 ==================
654 */
655 const char *Host_TimingReport(char *buf, size_t buflen)
656 {
657         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);
658 }
659
660 /*
661 ==================
662 Host_Frame
663
664 Runs all active servers
665 ==================
666 */
667 static void Host_Init(void);
668 void Host_Main(void)
669 {
670         double time1 = 0;
671         double time2 = 0;
672         double time3 = 0;
673         double cl_timer = 0, sv_timer = 0;
674         double clframetime, deltacleantime, olddirtytime, dirtytime;
675         double wait;
676         int pass1, pass2, pass3, i;
677         char vabuf[1024];
678         qboolean playing;
679
680         Host_Init();
681
682         realtime = 0;
683         host_dirtytime = Sys_DirtyTime();
684         for (;;)
685         {
686                 if (setjmp(host_abortframe))
687                 {
688                         SCR_ClearLoadingScreen(false);
689                         continue;                       // something bad happened, or the server disconnected
690                 }
691
692                 olddirtytime = host_dirtytime;
693                 dirtytime = Sys_DirtyTime();
694                 deltacleantime = dirtytime - olddirtytime;
695                 if (deltacleantime < 0)
696                 {
697                         // warn if it's significant
698                         if (deltacleantime < -0.01)
699                                 Con_Warnf("Host_Mingled: time stepped backwards (went from %f to %f, difference %f)\n", olddirtytime, dirtytime, deltacleantime);
700                         deltacleantime = 0;
701                 }
702                 else if (deltacleantime >= 1800)
703                 {
704                         Con_Warnf("Host_Mingled: time stepped forward (went from %f to %f, difference %f)\n", olddirtytime, dirtytime, deltacleantime);
705                         deltacleantime = 0;
706                 }
707                 realtime += deltacleantime;
708                 host_dirtytime = dirtytime;
709
710                 cl_timer += deltacleantime;
711                 sv_timer += deltacleantime;
712
713                 if (!svs.threaded)
714                 {
715                         svs.perf_acc_realtime += deltacleantime;
716
717                         // Look for clients who have spawned
718                         playing = false;
719                         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
720                                 if(host_client->begun)
721                                         if(host_client->netconnection)
722                                                 playing = true;
723                         if(sv.time < 10)
724                         {
725                                 // don't accumulate time for the first 10 seconds of a match
726                                 // so things can settle
727                                 svs.perf_acc_realtime = svs.perf_acc_sleeptime = svs.perf_acc_lost = svs.perf_acc_offset = svs.perf_acc_offset_squared = svs.perf_acc_offset_max = svs.perf_acc_offset_samples = 0;
728                         }
729                         else if(svs.perf_acc_realtime > 5)
730                         {
731                                 svs.perf_cpuload = 1 - svs.perf_acc_sleeptime / svs.perf_acc_realtime;
732                                 svs.perf_lost = svs.perf_acc_lost / svs.perf_acc_realtime;
733                                 if(svs.perf_acc_offset_samples > 0)
734                                 {
735                                         svs.perf_offset_max = svs.perf_acc_offset_max;
736                                         svs.perf_offset_avg = svs.perf_acc_offset / svs.perf_acc_offset_samples;
737                                         svs.perf_offset_sdev = sqrt(svs.perf_acc_offset_squared / svs.perf_acc_offset_samples - svs.perf_offset_avg * svs.perf_offset_avg);
738                                 }
739                                 if(svs.perf_lost > 0 && developer_extra.integer)
740                                         if(playing) // only complain if anyone is looking
741                                                 Con_DPrintf("Server can't keep up: %s\n", Host_TimingReport(vabuf, sizeof(vabuf)));
742                                 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;
743                         }
744                 }
745
746                 if (slowmo.value < 0.00001 && slowmo.value != 0)
747                         Cvar_SetValueQuick(&slowmo, 0);
748                 if (host_framerate.value < 0.00001 && host_framerate.value != 0)
749                         Cvar_SetValueQuick(&host_framerate, 0);
750
751                 TaskQueue_Frame(false);
752
753                 // keep the random time dependent, but not when playing demos/benchmarking
754                 if(!*sv_random_seed.string && !cls.demoplayback)
755                         rand();
756
757                 // get new key events
758                 Key_EventQueue_Unblock();
759                 SndSys_SendKeyEvents();
760                 Sys_SendKeyEvents();
761
762                 NetConn_UpdateSockets();
763
764                 Log_DestBuffer_Flush();
765
766                 // receive packets on each main loop iteration, as the main loop may
767                 // be undersleeping due to select() detecting a new packet
768                 if (sv.active && !svs.threaded)
769                         NetConn_ServerFrame();
770
771                 Curl_Run();
772
773                 // check for commands typed to the host
774                 Host_GetConsoleCommands();
775
776                 // when a server is running we only execute console commands on server frames
777                 // (this mainly allows frikbot .way config files to work properly by staying in sync with the server qc)
778                 // otherwise we execute them on client frames
779                 if (sv.active ? sv_timer > 0 : cl_timer > 0)
780                 {
781                         // process console commands
782 //                      R_TimeReport("preconsole");
783                         CL_VM_PreventInformationLeaks();
784                         Cbuf_Frame(&cmd_client);
785                         Cbuf_Frame(&cmd_server);
786
787                         if(sv.active)
788                         {
789                                 Cbuf_Frame(&cmd_serverfromclient);
790                         }
791
792                         if(cls.netcon)
793                         {
794                                 Cbuf_Frame(&cmd_clientfromserver);
795                         }
796
797 //                      R_TimeReport("console");
798                 }
799
800                 //Con_Printf("%6.0f %6.0f\n", cl_timer * 1000000.0, sv_timer * 1000000.0);
801
802                 // if the accumulators haven't become positive yet, wait a while
803                 if (cls.state == ca_dedicated)
804                         wait = sv_timer * -1000000.0;
805                 else if (!sv.active || svs.threaded)
806                         wait = cl_timer * -1000000.0;
807                 else
808                         wait = max(cl_timer, sv_timer) * -1000000.0;
809
810                 if (!cls.timedemo && wait >= 1)
811                 {
812                         double time0, delta;
813
814                         if(host_maxwait.value <= 0)
815                                 wait = min(wait, 1000000.0);
816                         else
817                                 wait = min(wait, host_maxwait.value * 1000.0);
818                         if(wait < 1)
819                                 wait = 1; // because we cast to int
820
821                         time0 = Sys_DirtyTime();
822                         if (sv_checkforpacketsduringsleep.integer && !sys_usenoclockbutbenchmark.integer && !svs.threaded) {
823                                 NetConn_SleepMicroseconds((int)wait);
824                                 if (cls.state != ca_dedicated)
825                                         NetConn_ClientFrame(); // helps server browser get good ping values
826                                 // TODO can we do the same for ServerFrame? Probably not.
827                         }
828                         else
829                                 Sys_Sleep((int)wait);
830                         delta = Sys_DirtyTime() - time0;
831                         if (delta < 0 || delta >= 1800) delta = 0;
832                         if (!svs.threaded)
833                                 svs.perf_acc_sleeptime += delta;
834 //                      R_TimeReport("sleep");
835                         continue;
836                 }
837
838                 // limit the frametime steps to no more than 100ms each
839                 if (cl_timer > 0.1)
840                         cl_timer = 0.1;
841                 if (sv_timer > 0.1)
842                 {
843                         if (!svs.threaded)
844                                 svs.perf_acc_lost += (sv_timer - 0.1);
845                         sv_timer = 0.1;
846                 }
847
848                 R_TimeReport("---");
849
850         //-------------------
851         //
852         // server operations
853         //
854         //-------------------
855
856                 // limit the frametime steps to no more than 100ms each
857                 if (sv.active && sv_timer > 0 && !svs.threaded)
858                 {
859                         // execute one or more server frames, with an upper limit on how much
860                         // execution time to spend on server frames to avoid freezing the game if
861                         // the server is overloaded, this execution time limit means the game will
862                         // slow down if the server is taking too long.
863                         int framecount, framelimit = 1;
864                         double advancetime, aborttime = 0;
865                         float offset;
866                         prvm_prog_t *prog = SVVM_prog;
867
868                         // run the world state
869                         // don't allow simulation to run too fast or too slow or logic glitches can occur
870
871                         // stop running server frames if the wall time reaches this value
872                         if (sys_ticrate.value <= 0)
873                                 advancetime = sv_timer;
874                         else if (cl.islocalgame && !sv_fixedframeratesingleplayer.integer)
875                         {
876                                 // synchronize to the client frametime, but no less than 10ms and no more than 100ms
877                                 advancetime = bound(0.01, cl_timer, 0.1);
878                         }
879                         else
880                         {
881                                 advancetime = sys_ticrate.value;
882                                 // listen servers can run multiple server frames per client frame
883                                 framelimit = cl_maxphysicsframesperserverframe.integer;
884                                 aborttime = Sys_DirtyTime() + 0.1;
885                         }
886                         if(slowmo.value > 0 && slowmo.value < 1)
887                                 advancetime = min(advancetime, 0.1 / slowmo.value);
888                         else
889                                 advancetime = min(advancetime, 0.1);
890
891                         if(advancetime > 0)
892                         {
893                                 offset = Sys_DirtyTime() - dirtytime;if (offset < 0 || offset >= 1800) offset = 0;
894                                 offset += sv_timer;
895                                 ++svs.perf_acc_offset_samples;
896                                 svs.perf_acc_offset += offset;
897                                 svs.perf_acc_offset_squared += offset * offset;
898                                 if(svs.perf_acc_offset_max < offset)
899                                         svs.perf_acc_offset_max = offset;
900                         }
901
902                         // only advance time if not paused
903                         // the game also pauses in singleplayer when menu or console is used
904                         sv.frametime = advancetime * slowmo.value;
905                         if (host_framerate.value)
906                                 sv.frametime = host_framerate.value;
907                         if (sv.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive || cl.csqc_paused)))
908                                 sv.frametime = 0;
909
910                         for (framecount = 0;framecount < framelimit && sv_timer > 0;framecount++)
911                         {
912                                 sv_timer -= advancetime;
913
914                                 // move things around and think unless paused
915                                 if (sv.frametime)
916                                         SV_Physics();
917
918                                 // if this server frame took too long, break out of the loop
919                                 if (framelimit > 1 && Sys_DirtyTime() >= aborttime)
920                                         break;
921                         }
922                         R_TimeReport("serverphysics");
923
924                         // send all messages to the clients
925                         SV_SendClientMessages();
926
927                         if (sv.paused == 1 && realtime > sv.pausedstart && sv.pausedstart > 0) {
928                                 prog->globals.fp[OFS_PARM0] = realtime - sv.pausedstart;
929                                 PRVM_serverglobalfloat(time) = sv.time;
930                                 prog->ExecuteProgram(prog, PRVM_serverfunction(SV_PausedTic), "QC function SV_PausedTic is missing");
931                         }
932
933                         // send an heartbeat if enough time has passed since the last one
934                         NetConn_Heartbeat(0);
935                         R_TimeReport("servernetwork");
936                 }
937                 else if (!svs.threaded)
938                 {
939                         // don't let r_speeds display jump around
940                         R_TimeReport("serverphysics");
941                         R_TimeReport("servernetwork");
942                 }
943
944         //-------------------
945         //
946         // client operations
947         //
948         //-------------------
949
950                 if (cls.state != ca_dedicated && (cl_timer > 0 || cls.timedemo || ((vid_activewindow ? cl_maxfps : cl_maxidlefps).value < 1)))
951                 {
952                         R_TimeReport("---");
953                         Collision_Cache_NewFrame();
954                         R_TimeReport("photoncache");
955                         // decide the simulation time
956                         if (cls.capturevideo.active)
957                         {
958                                 //***
959                                 if (cls.capturevideo.realtime)
960                                         clframetime = cl.realframetime = max(cl_timer, 1.0 / cls.capturevideo.framerate);
961                                 else
962                                 {
963                                         clframetime = 1.0 / cls.capturevideo.framerate;
964                                         cl.realframetime = max(cl_timer, clframetime);
965                                 }
966                         }
967                         else if (vid_activewindow && cl_maxfps.value >= 1 && !cls.timedemo)
968                         {
969                                 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxfps.value);
970                                 // when running slow, we need to sleep to keep input responsive
971                                 wait = bound(0, cl_maxfps_alwayssleep.value * 1000, 100000);
972                                 if (wait > 0)
973                                         Sys_Sleep((int)wait);
974                         }
975                         else if (!vid_activewindow && cl_maxidlefps.value >= 1 && !cls.timedemo)
976                                 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxidlefps.value);
977                         else
978                                 clframetime = cl.realframetime = cl_timer;
979
980                         // apply slowmo scaling
981                         clframetime *= cl.movevars_timescale;
982                         // scale playback speed of demos by slowmo cvar
983                         if (cls.demoplayback)
984                         {
985                                 clframetime *= slowmo.value;
986                                 // if demo playback is paused, don't advance time at all
987                                 if (cls.demopaused)
988                                         clframetime = 0;
989                         }
990                         else
991                         {
992                                 // host_framerate overrides all else
993                                 if (host_framerate.value)
994                                         clframetime = host_framerate.value;
995
996                                 if (cl.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive || cl.csqc_paused)))
997                                         clframetime = 0;
998                         }
999
1000                         if (cls.timedemo)
1001                                 clframetime = cl.realframetime = cl_timer;
1002
1003                         // deduct the frame time from the accumulator
1004                         cl_timer -= cl.realframetime;
1005
1006                         cl.oldtime = cl.time;
1007                         cl.time += clframetime;
1008
1009                         // update video
1010                         if (host_speeds.integer)
1011                                 time1 = Sys_DirtyTime();
1012                         R_TimeReport("pre-input");
1013
1014                         // Collect input into cmd
1015                         CL_Input();
1016
1017                         R_TimeReport("input");
1018
1019                         // check for new packets
1020                         NetConn_ClientFrame();
1021
1022                         // read a new frame from a demo if needed
1023                         CL_ReadDemoMessage();
1024                         R_TimeReport("clientnetwork");
1025
1026                         // now that packets have been read, send input to server
1027                         CL_SendMove();
1028                         R_TimeReport("sendmove");
1029
1030                         // update client world (interpolate entities, create trails, etc)
1031                         CL_UpdateWorld();
1032                         R_TimeReport("lerpworld");
1033
1034                         CL_Video_Frame();
1035
1036                         R_TimeReport("client");
1037
1038                         CL_UpdateScreen();
1039                         R_TimeReport("render");
1040
1041                         if (host_speeds.integer)
1042                                 time2 = Sys_DirtyTime();
1043
1044                         // update audio
1045                         if(cl.csqc_usecsqclistener)
1046                         {
1047                                 S_Update(&cl.csqc_listenermatrix);
1048                                 cl.csqc_usecsqclistener = false;
1049                         }
1050                         else
1051                                 S_Update(&r_refdef.view.matrix);
1052
1053                         CDAudio_Update();
1054                         R_TimeReport("audio");
1055
1056                         // reset gathering of mouse input
1057                         in_mouse_x = in_mouse_y = 0;
1058
1059                         if (host_speeds.integer)
1060                         {
1061                                 pass1 = (int)((time1 - time3)*1000000);
1062                                 time3 = Sys_DirtyTime();
1063                                 pass2 = (int)((time2 - time1)*1000000);
1064                                 pass3 = (int)((time3 - time2)*1000000);
1065                                 Con_Printf("%6ius total %6ius server %6ius gfx %6ius snd\n",
1066                                                         pass1+pass2+pass3, pass1, pass2, pass3);
1067                         }
1068                 }
1069
1070 #if MEMPARANOIA
1071                 Mem_CheckSentinelsGlobal();
1072 #else
1073                 if (developer_memorydebug.integer)
1074                         Mem_CheckSentinelsGlobal();
1075 #endif
1076
1077                 // if there is some time remaining from this frame, reset the timers
1078                 if (cl_timer >= 0)
1079                         cl_timer = 0;
1080                 if (sv_timer >= 0)
1081                 {
1082                         if (!svs.threaded)
1083                                 svs.perf_acc_lost += sv_timer;
1084                         sv_timer = 0;
1085                 }
1086
1087                 host_framecount++;
1088         }
1089 }
1090
1091 //============================================================================
1092
1093 qboolean vid_opened = false;
1094 void Host_StartVideo(void)
1095 {
1096         if (!vid_opened && cls.state != ca_dedicated)
1097         {
1098                 vid_opened = true;
1099                 // make sure we open sockets before opening video because the Windows Firewall "unblock?" dialog can screw up the graphics context on some graphics drivers
1100                 NetConn_UpdateSockets();
1101                 VID_Start();
1102                 CDAudio_Startup();
1103         }
1104 }
1105
1106 char engineversion[128];
1107
1108 qboolean sys_nostdout = false;
1109
1110 static qfile_t *locksession_fh = NULL;
1111 static qboolean locksession_run = false;
1112 static void Host_InitSession(void)
1113 {
1114         int i;
1115         Cvar_RegisterVariable(&sessionid);
1116         Cvar_RegisterVariable(&locksession);
1117
1118         // load the session ID into the read-only cvar
1119         if ((i = COM_CheckParm("-sessionid")) && (i + 1 < com_argc))
1120         {
1121                 char vabuf[1024];
1122                 if(com_argv[i+1][0] == '.')
1123                         Cvar_SetQuick(&sessionid, com_argv[i+1]);
1124                 else
1125                         Cvar_SetQuick(&sessionid, va(vabuf, sizeof(vabuf), ".%s", com_argv[i+1]));
1126         }
1127 }
1128 void Host_LockSession(void)
1129 {
1130         if(locksession_run)
1131                 return;
1132         locksession_run = true;
1133         if(locksession.integer != 0 && !COM_CheckParm("-readonly"))
1134         {
1135                 char vabuf[1024];
1136                 char *p = va(vabuf, sizeof(vabuf), "%slock%s", *fs_userdir ? fs_userdir : fs_basedir, sessionid.string);
1137                 FS_CreatePath(p);
1138                 locksession_fh = FS_SysOpen(p, "wl", false);
1139                 // TODO maybe write the pid into the lockfile, while we are at it? may help server management tools
1140                 if(!locksession_fh)
1141                 {
1142                         if(locksession.integer == 2)
1143                         {
1144                                 Con_Warnf("WARNING: session lock %s could not be acquired. Please run with -sessionid and an unique session name. Continuing anyway.\n", p);
1145                         }
1146                         else
1147                         {
1148                                 Sys_Error("session lock %s could not be acquired. Please run with -sessionid and an unique session name.\n", p);
1149                         }
1150                 }
1151         }
1152 }
1153 void Host_UnlockSession(void)
1154 {
1155         if(!locksession_run)
1156                 return;
1157         locksession_run = false;
1158
1159         if(locksession_fh)
1160         {
1161                 FS_Close(locksession_fh);
1162                 // NOTE: we can NOT unlink the lock here, as doing so would
1163                 // create a race condition if another process created it
1164                 // between our close and our unlink
1165                 locksession_fh = NULL;
1166         }
1167 }
1168
1169 /*
1170 ====================
1171 Host_Init
1172 ====================
1173 */
1174 static void Host_Init (void)
1175 {
1176         int i;
1177         const char* os;
1178         char vabuf[1024];
1179         qboolean dedicated_server = COM_CheckParm("-dedicated") || !cl_available;
1180         cmd_state_t *cmd = &cmd_client;
1181
1182         if (COM_CheckParm("-profilegameonly"))
1183                 Sys_AllowProfiling(false);
1184
1185         // LadyHavoc: quake never seeded the random number generator before... heh
1186         if (COM_CheckParm("-benchmark"))
1187                 srand(0); // predictable random sequence for -benchmark
1188         else
1189                 srand((unsigned int)time(NULL));
1190
1191         // FIXME: this is evil, but possibly temporary
1192         // LadyHavoc: doesn't seem very temporary...
1193         // LadyHavoc: made this a saved cvar
1194 // COMMANDLINEOPTION: Console: -developer enables warnings and other notices (RECOMMENDED for mod developers)
1195         if (COM_CheckParm("-developer"))
1196         {
1197                 developer.value = developer.integer = 1;
1198                 developer.string = "1";
1199         }
1200
1201         if (COM_CheckParm("-developer2") || COM_CheckParm("-developer3"))
1202         {
1203                 developer.value = developer.integer = 1;
1204                 developer.string = "1";
1205                 developer_extra.value = developer_extra.integer = 1;
1206                 developer_extra.string = "1";
1207                 developer_insane.value = developer_insane.integer = 1;
1208                 developer_insane.string = "1";
1209                 developer_memory.value = developer_memory.integer = 1;
1210                 developer_memory.string = "1";
1211                 developer_memorydebug.value = developer_memorydebug.integer = 1;
1212                 developer_memorydebug.string = "1";
1213         }
1214
1215         if (COM_CheckParm("-developer3"))
1216         {
1217                 gl_paranoid.integer = 1;gl_paranoid.string = "1";
1218                 gl_printcheckerror.integer = 1;gl_printcheckerror.string = "1";
1219         }
1220
1221 // COMMANDLINEOPTION: Console: -nostdout disables text output to the terminal the game was launched from
1222         if (COM_CheckParm("-nostdout"))
1223                 sys_nostdout = 1;
1224
1225         // used by everything
1226         Memory_Init();
1227
1228         // initialize console command/cvar/alias/command execution systems
1229         Cmd_Init();
1230
1231         Cmd_Init_Commands(dedicated_server);
1232
1233         // initialize memory subsystem cvars/commands
1234         Memory_Init_Commands();
1235
1236         // initialize console and logging and its cvars/commands
1237         Con_Init();
1238
1239         // initialize various cvars that could not be initialized earlier
1240         u8_Init();
1241         Curl_Init_Commands();
1242         Sys_Init_Commands();
1243         COM_Init_Commands();
1244         FS_Init_Commands();
1245
1246         // initialize console window (only used by sys_win.c)
1247         Sys_InitConsole();
1248
1249         // initialize the self-pack (must be before COM_InitGameType as it may add command line options)
1250         FS_Init_SelfPack();
1251
1252         // detect gamemode from commandline options or executable name
1253         COM_InitGameType();
1254
1255         // construct a version string for the corner of the console
1256         os = DP_OS_NAME;
1257         dpsnprintf (engineversion, sizeof (engineversion), "%s %s %s", gamename, os, buildstring);
1258         Con_Printf("%s\n", engineversion);
1259
1260         // initialize process nice level
1261         Sys_InitProcessNice();
1262
1263         // initialize ixtable
1264         Mathlib_Init();
1265
1266         // initialize filesystem (including fs_basedir, fs_gamedir, -game, scr_screenshot_name)
1267         FS_Init();
1268
1269         // register the cvars for session locking
1270         Host_InitSession();
1271
1272         // must be after FS_Init
1273         Crypto_Init();
1274         Crypto_Init_Commands();
1275
1276         NetConn_Init();
1277         Curl_Init();
1278         //PR_Init();
1279         //PR_Cmd_Init();
1280         PRVM_Init();
1281         Mod_Init();
1282         World_Init();
1283         SV_Init();
1284         V_Init(); // some cvars needed by server player physics (cl_rollangle etc)
1285         Host_InitCommands();
1286         Host_InitLocal();
1287         Host_ServerOptions();
1288
1289         Thread_Init();
1290         TaskQueue_Init();
1291
1292         if (cls.state == ca_dedicated)
1293         {
1294                 cmd = &cmd_server;
1295                 Cmd_AddCommand(&cmd_server, "disconnect", CL_Disconnect_f, "disconnect from server (or disconnect all clients if running a server)");
1296         }
1297         else
1298         {
1299                 Con_DPrintf("Initializing client\n");
1300
1301                 R_Modules_Init();
1302                 Palette_Init();
1303 #ifdef CONFIG_MENU
1304                 MR_Init_Commands();
1305 #endif
1306                 VID_Shared_Init();
1307                 VID_Init();
1308                 Render_Init();
1309                 S_Init();
1310                 CDAudio_Init();
1311                 Key_Init();
1312                 CL_Init();
1313         }
1314
1315         // save off current state of aliases, commands and cvars for later restore if FS_GameDir_f is called
1316         // NOTE: menu commands are freed by Cmd_RestoreInitState
1317         Cmd_SaveInitState();
1318
1319         // FIXME: put this into some neat design, but the menu should be allowed to crash
1320         // without crashing the whole game, so this should just be a short-time solution
1321
1322         // here comes the not so critical stuff
1323         if (setjmp(host_abortframe)) {
1324                 return;
1325         }
1326
1327         Host_AddConfigText(cmd);
1328         Cbuf_Execute(cmd);
1329
1330         // if stuffcmds wasn't run, then quake.rc is probably missing, use default
1331         if (!host_stuffcmdsrun)
1332         {
1333                 Cbuf_AddText(cmd, "exec default.cfg\nexec " CONFIGFILENAME "\nexec autoexec.cfg\nstuffcmds\n");
1334                 Cbuf_Execute(cmd);
1335         }
1336
1337         Log_Start();
1338         
1339         // put up the loading image so the user doesn't stare at a black screen...
1340         SCR_BeginLoadingPlaque(true);
1341
1342 #ifdef CONFIG_MENU
1343         if (cls.state != ca_dedicated)
1344         {
1345                 MR_Init();
1346         }
1347 #endif
1348
1349         // check for special benchmark mode
1350 // 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)
1351         i = COM_CheckParm("-benchmark");
1352         if (i && i + 1 < com_argc)
1353         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1354         {
1355                 Cbuf_AddText(&cmd_client, va(vabuf, sizeof(vabuf), "timedemo %s\n", com_argv[i + 1]));
1356                 Cbuf_Execute(&cmd_client);
1357         }
1358
1359         // check for special demo mode
1360 // COMMANDLINEOPTION: Client: -demo <demoname> runs a playdemo and quits
1361         i = COM_CheckParm("-demo");
1362         if (i && i + 1 < com_argc)
1363         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1364         {
1365                 Cbuf_AddText(&cmd_client, va(vabuf, sizeof(vabuf), "playdemo %s\n", com_argv[i + 1]));
1366                 Cbuf_Execute(&cmd_client);
1367         }
1368
1369 // COMMANDLINEOPTION: Client: -capturedemo <demoname> captures a playdemo and quits
1370         i = COM_CheckParm("-capturedemo");
1371         if (i && i + 1 < com_argc)
1372         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1373         {
1374                 Cbuf_AddText(&cmd_client, va(vabuf, sizeof(vabuf), "playdemo %s\ncl_capturevideo 1\n", com_argv[i + 1]));
1375                 Cbuf_Execute(&cmd_client);
1376         }
1377
1378         if (cls.state == ca_dedicated || COM_CheckParm("-listen"))
1379         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1380         {
1381                 Cbuf_AddText(&cmd_client, "startmap_dm\n");
1382                 Cbuf_Execute(&cmd_client);
1383         }
1384
1385         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1386         {
1387 #ifdef CONFIG_MENU
1388                 Cbuf_AddText(&cmd_client, "togglemenu 1\n");
1389 #endif
1390                 Cbuf_Execute(&cmd_client);
1391         }
1392
1393         Con_DPrint("========Initialized=========\n");
1394
1395         //Host_StartVideo();
1396
1397         if (cls.state != ca_dedicated)
1398                 SV_StartThread();
1399 }
1400
1401
1402 /*
1403 ===============
1404 Host_Shutdown
1405
1406 FIXME: this is a callback from Sys_Quit and Sys_Error.  It would be better
1407 to run quit through here before the final handoff to the sys code.
1408 ===============
1409 */
1410 void Host_Shutdown(void)
1411 {
1412         static qboolean isdown = false;
1413
1414         if (isdown)
1415         {
1416                 Con_Print("recursive shutdown\n");
1417                 return;
1418         }
1419         if (setjmp(host_abortframe))
1420         {
1421                 Con_Print("aborted the quitting frame?!?\n");
1422                 return;
1423         }
1424         isdown = true;
1425
1426         // be quiet while shutting down
1427         S_StopAllSounds();
1428
1429         // end the server thread
1430         if (svs.threaded)
1431                 SV_StopThread();
1432
1433         // disconnect client from server if active
1434         CL_Disconnect();
1435
1436         // shut down local server if active
1437         SV_LockThreadMutex();
1438         Host_ShutdownServer ();
1439         SV_UnlockThreadMutex();
1440
1441 #ifdef CONFIG_MENU
1442         // Shutdown menu
1443         if(MR_Shutdown)
1444                 MR_Shutdown();
1445 #endif
1446
1447         // AK shutdown PRVM
1448         // AK hmm, no PRVM_Shutdown(); yet
1449
1450         CL_Video_Shutdown();
1451
1452         Host_SaveConfig();
1453
1454         CDAudio_Shutdown ();
1455         S_Terminate ();
1456         Curl_Shutdown ();
1457         NetConn_Shutdown ();
1458         //PR_Shutdown ();
1459
1460         if (cls.state != ca_dedicated)
1461         {
1462                 R_Modules_Shutdown();
1463                 VID_Shutdown();
1464         }
1465
1466         SV_StopThread();
1467         TaskQueue_Shutdown();
1468         Thread_Shutdown();
1469         Cmd_Shutdown();
1470         Key_Shutdown();
1471         CL_Shutdown();
1472         Sys_Shutdown();
1473         Log_Close();
1474         Crypto_Shutdown();
1475
1476         Host_UnlockSession();
1477
1478         S_Shutdown();
1479         Con_Shutdown();
1480         Memory_Shutdown();
1481 }
1482