host.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20 // host.c -- coordinates spawning and killing of local servers
  21
  22 #include "quakedef.h"
  23
  24 #include <time.h>
  25 #include "libcurl.h"
  26 #include "cdaudio.h"
  27 #include "cl_video.h"
  28 #include "progsvm.h"
  29 #include "csprogs.h"
  30 #include "sv_demo.h"
  31 #include "snd_main.h"
  32 #include "thread.h"
  33 #include "utf8lib.h"
  34
  35 /*
  36
  37 A server can always be started, even if the system started out as a client
  38 to a remote system.
  39
  40 A client can NOT be started if the system started as a dedicated server.
  41
  42 Memory is cleared / released when a server or client begins, not when they end.
  43
  44 */
  45
  46 // how many frames have occurred
  47 // (checked by Host_Error and Host_SaveConfig_f)
  48 int host_framecount = 0;
  49 // LordHavoc: set when quit is executed
  50 qboolean host_shuttingdown = false;
  51
  52 // the accumulated mainloop time since application started (with filtering), without any slowmo or clamping
  53 double realtime;
  54 // the main loop wall time for this frame
  55 double host_dirtytime;
  56
  57 // current client
  58 client_t *host_client;
  59
  60 jmp_buf host_abortframe;
  61
  62 // pretend frames take this amount of time (in seconds), 0 = realtime
  63 cvar_t host_framerate = {0, "host_framerate","0", "locks frame timing to this value in seconds, 0.05 is 20fps for example, note that this can easily run too fast, use cl_maxfps if you want to limit your framerate instead, or sys_ticrate to limit server speed"};
  64 cvar_t cl_maxphysicsframesperserverframe = {0, "cl_maxphysicsframesperserverframe","10", "maximum number of physics frames per server frame"};
  65 // shows time used by certain subsystems
  66 cvar_t host_speeds = {0, "host_speeds","0", "reports how much time is used in server/graphics/sound"};
  67 cvar_t host_maxwait = {0, "host_maxwait","1000", "maximum sleep time requested from the operating system in millisecond. Larger sleeps will be done using multiple host_maxwait length sleeps. Lowering this value will increase CPU load, but may help working around problems with accuracy of sleep times."};
  68 cvar_t cl_minfps = {CVAR_SAVE, "cl_minfps", "40", "minimum fps target - while the rendering performance is below this, it will drift toward lower quality"};
  69 cvar_t cl_minfps_fade = {CVAR_SAVE, "cl_minfps_fade", "0.2", "how fast the quality adapts to varying framerate"};
  70 cvar_t cl_minfps_qualitymax = {CVAR_SAVE, "cl_minfps_qualitymax", "1", "highest allowed drawdistance multiplier"};
  71 cvar_t cl_minfps_qualitymin = {CVAR_SAVE, "cl_minfps_qualitymin", "0.25", "lowest allowed drawdistance multiplier"};
  72 cvar_t cl_minfps_qualitypower = {CVAR_SAVE, "cl_minfps_qualitypower", "4", "raises quality value to a power of itself, higher values make quality drop more sharply in relation to framerate"};
  73 cvar_t cl_minfps_qualityscale = {CVAR_SAVE, "cl_minfps_qualityscale", "0.5", "multiplier for quality"};
  74 cvar_t cl_maxfps = {CVAR_SAVE, "cl_maxfps", "0", "maximum fps cap, 0 = unlimited, if game is running faster than this it will wait before running another frame (useful to make cpu time available to other programs)"};
  75 cvar_t cl_maxfps_alwayssleep = {0, "cl_maxfps_alwayssleep","1", "gives up some processing time to other applications each frame, value in milliseconds, disabled if cl_maxfps is 0"};
  76 cvar_t cl_maxidlefps = {CVAR_SAVE, "cl_maxidlefps", "20", "maximum fps cap when the game is not the active window (makes cpu time available to other programs"};
  77
  78 cvar_t developer = {CVAR_SAVE, "developer","0", "shows debugging messages and information (recommended for all developers and level designers); the value -1 also suppresses buffering and logging these messages"};
  79 cvar_t developer_extra = {0, "developer_extra", "0", "prints additional debugging messages, often very verbose!"};
  80 cvar_t developer_insane = {0, "developer_insane", "0", "prints huge streams of information about internal workings, entire contents of files being read/written, etc.  Not recommended!"};
  81 cvar_t developer_loadfile = {0, "developer_loadfile","0", "prints name and size of every file loaded via the FS_LoadFile function (which is almost everything)"};
  82 cvar_t developer_loading = {0, "developer_loading","0", "prints information about files as they are loaded or unloaded successfully"};
  83 cvar_t developer_entityparsing = {0, "developer_entityparsing", "0", "prints detailed network entities information each time a packet is received"};
  84
  85 cvar_t timestamps = {CVAR_SAVE, "timestamps", "0", "prints timestamps on console messages"};
  86 cvar_t timeformat = {CVAR_SAVE, "timeformat", "[%Y-%m-%d %H:%M:%S] ", "time format to use on timestamped console messages"};
  87
  88 cvar_t sessionid = {CVAR_READONLY, "sessionid", "", "ID of the current session (use the -sessionid parameter to set it); this is always either empty or begins with a dot (.)"};
  89 cvar_t locksession = {0, "locksession", "0", "Lock the session? 0 = no, 1 = yes and abort on failure, 2 = yes and continue on failure"};
  90
  91 /*
  92 ================
  93 Host_AbortCurrentFrame
  94
  95 aborts the current host frame and goes on with the next one
  96 ================
  97 */
  98 void Host_AbortCurrentFrame(void)
  99 {
 100         // in case we were previously nice, make us mean again
 101         Sys_MakeProcessMean();
 102
 103         longjmp (host_abortframe, 1);
 104 }
 105
 106 /*
 107 ================
 108 Host_Error
 109
 110 This shuts down both the client and server
 111 ================
 112 */
 113 void Host_Error (const char *error, ...)
 114 {
 115         static char hosterrorstring1[MAX_INPUTLINE]; // THREAD UNSAFE
 116         static char hosterrorstring2[MAX_INPUTLINE]; // THREAD UNSAFE
 117         static qboolean hosterror = false;
 118         va_list argptr;
 119
 120         // turn off rcon redirect if it was active when the crash occurred
 121         // to prevent loops when it is a networking problem
 122         Con_Rcon_Redirect_Abort();
 123
 124         va_start (argptr,error);
 125         dpvsnprintf (hosterrorstring1,sizeof(hosterrorstring1),error,argptr);
 126         va_end (argptr);
 127
 128         Con_Printf("Host_Error: %s\n", hosterrorstring1);
 129
 130         // LordHavoc: if crashing very early, or currently shutting down, do
 131         // Sys_Error instead
 132         if (host_framecount < 3 || host_shuttingdown)
 133                 Sys_Error ("Host_Error: %s", hosterrorstring1);
 134
 135         if (hosterror)
 136                 Sys_Error ("Host_Error: recursively entered (original error was: %s    new error is: %s)", hosterrorstring2, hosterrorstring1);
 137         hosterror = true;
 138
 139         strlcpy(hosterrorstring2, hosterrorstring1, sizeof(hosterrorstring2));
 140
 141         CL_Parse_DumpPacket();
 142
 143         CL_Parse_ErrorCleanUp();
 144
 145         //PR_Crash();
 146
 147         // print out where the crash happened, if it was caused by QC (and do a cleanup)
 148         PRVM_Crash(SVVM_prog);
 149         PRVM_Crash(CLVM_prog);
 150         PRVM_Crash(MVM_prog);
 151
 152         cl.csqc_loaded = false;
 153         Cvar_SetValueQuick(&csqc_progcrc, -1);
 154         Cvar_SetValueQuick(&csqc_progsize, -1);
 155
 156         SV_LockThreadMutex();
 157         Host_ShutdownServer ();
 158         SV_UnlockThreadMutex();
 159
 160         if (cls.state == ca_dedicated)
 161                 Sys_Error ("Host_Error: %s",hosterrorstring2);  // dedicated servers exit
 162
 163         CL_Disconnect ();
 164         cls.demonum = -1;
 165
 166         hosterror = false;
 167
 168         Host_AbortCurrentFrame();
 169 }
 170
 171 static void Host_ServerOptions (void)
 172 {
 173         int i;
 174
 175         // general default
 176         svs.maxclients = 8;
 177
 178 // COMMANDLINEOPTION: Server: -dedicated [playerlimit] starts a dedicated server (with a command console), default playerlimit is 8
 179 // COMMANDLINEOPTION: Server: -listen [playerlimit] starts a multiplayer server with graphical client, like singleplayer but other players can connect, default playerlimit is 8
 180         // if no client is in the executable or -dedicated is specified on
 181         // commandline, start a dedicated server
 182         i = COM_CheckParm ("-dedicated");
 183         if (i || !cl_available)
 184         {
 185                 cls.state = ca_dedicated;
 186                 // check for -dedicated specifying how many players
 187                 if (i && i + 1 < com_argc && atoi (com_argv[i+1]) >= 1)
 188                         svs.maxclients = atoi (com_argv[i+1]);
 189                 if (COM_CheckParm ("-listen"))
 190                         Con_Printf ("Only one of -dedicated or -listen can be specified\n");
 191                 // default sv_public on for dedicated servers (often hosted by serious administrators), off for listen servers (often hosted by clueless users)
 192                 Cvar_SetValue("sv_public", 1);
 193         }
 194         else if (cl_available)
 195         {
 196                 // client exists and not dedicated, check if -listen is specified
 197                 cls.state = ca_disconnected;
 198                 i = COM_CheckParm ("-listen");
 199                 if (i)
 200                 {
 201                         // default players unless specified
 202                         if (i + 1 < com_argc && atoi (com_argv[i+1]) >= 1)
 203                                 svs.maxclients = atoi (com_argv[i+1]);
 204                 }
 205                 else
 206                 {
 207                         // default players in some games, singleplayer in most
 208                         if (gamemode != GAME_GOODVSBAD2 && gamemode != GAME_NEXUIZ && gamemode != GAME_XONOTIC && gamemode != GAME_BATTLEMECH)
 209                                 svs.maxclients = 1;
 210                 }
 211         }
 212
 213         svs.maxclients = svs.maxclients_next = bound(1, svs.maxclients, MAX_SCOREBOARD);
 214
 215         svs.clients = (client_t *)Mem_Alloc(sv_mempool, sizeof(client_t) * svs.maxclients);
 216
 217         if (svs.maxclients > 1 && !deathmatch.integer && !coop.integer)
 218                 Cvar_SetValueQuick(&deathmatch, 1);
 219 }
 220
 221 /*
 222 =======================
 223 Host_InitLocal
 224 ======================
 225 */
 226 void Host_SaveConfig_f(void);
 227 void Host_LoadConfig_f(void);
 228 extern cvar_t sv_writepicture_quality;
 229 extern cvar_t r_texture_jpeg_fastpicmip;
 230 static void Host_InitLocal (void)
 231 {
 232         Cmd_AddCommand("saveconfig", Host_SaveConfig_f, "save settings to config.cfg (or a specified filename) immediately (also automatic when quitting)");
 233         Cmd_AddCommand("loadconfig", Host_LoadConfig_f, "reset everything and reload configs");
 234
 235         Cvar_RegisterVariable (&cl_maxphysicsframesperserverframe);
 236         Cvar_RegisterVariable (&host_framerate);
 237         Cvar_RegisterVariable (&host_speeds);
 238         Cvar_RegisterVariable (&host_maxwait);
 239         Cvar_RegisterVariable (&cl_minfps);
 240         Cvar_RegisterVariable (&cl_minfps_fade);
 241         Cvar_RegisterVariable (&cl_minfps_qualitymax);
 242         Cvar_RegisterVariable (&cl_minfps_qualitymin);
 243         Cvar_RegisterVariable (&cl_minfps_qualitypower);
 244         Cvar_RegisterVariable (&cl_minfps_qualityscale);
 245         Cvar_RegisterVariable (&cl_maxfps);
 246         Cvar_RegisterVariable (&cl_maxfps_alwayssleep);
 247         Cvar_RegisterVariable (&cl_maxidlefps);
 248
 249         Cvar_RegisterVariable (&developer);
 250         Cvar_RegisterVariable (&developer_extra);
 251         Cvar_RegisterVariable (&developer_insane);
 252         Cvar_RegisterVariable (&developer_loadfile);
 253         Cvar_RegisterVariable (&developer_loading);
 254         Cvar_RegisterVariable (&developer_entityparsing);
 255
 256         Cvar_RegisterVariable (&timestamps);
 257         Cvar_RegisterVariable (&timeformat);
 258
 259         Cvar_RegisterVariable (&sv_writepicture_quality);
 260         Cvar_RegisterVariable (&r_texture_jpeg_fastpicmip);
 261 }
 262
 263
 264 /*
 265 ===============
 266 Host_SaveConfig_f
 267
 268 Writes key bindings and archived cvars to config.cfg
 269 ===============
 270 */
 271 static void Host_SaveConfig_to(const char *file)
 272 {
 273         qfile_t *f;
 274
 275 // dedicated servers initialize the host but don't parse and set the
 276 // config.cfg cvars
 277         // LordHavoc: don't save a config if it crashed in startup
 278         if (host_framecount >= 3 && cls.state != ca_dedicated && !COM_CheckParm("-benchmark") && !COM_CheckParm("-capturedemo"))
 279         {
 280                 f = FS_OpenRealFile(file, "wb", false);
 281                 if (!f)
 282                 {
 283                         Con_Printf("Couldn't write %s.\n", file);
 284                         return;
 285                 }
 286
 287                 Key_WriteBindings (f);
 288                 Cvar_WriteVariables (f);
 289
 290                 FS_Close (f);
 291         }
 292 }
 293 void Host_SaveConfig(void)
 294 {
 295         Host_SaveConfig_to(CONFIGFILENAME);
 296 }
 297 void Host_SaveConfig_f(void)
 298 {
 299         const char *file = CONFIGFILENAME;
 300
 301         if(Cmd_Argc() >= 2) {
 302                 file = Cmd_Argv(1);
 303                 Con_Printf("Saving to %s\n", file);
 304         }
 305
 306         Host_SaveConfig_to(file);
 307 }
 308
 309 static void Host_AddConfigText(void)
 310 {
 311         // set up the default startmap_sp and startmap_dm aliases (mods can
 312         // override these) and then execute the quake.rc startup script
 313         if (gamemode == GAME_NEHAHRA)
 314                 Cbuf_InsertText("alias startmap_sp \"map nehstart\"\nalias startmap_dm \"map nehstart\"\nexec " STARTCONFIGFILENAME "\n");
 315         else if (gamemode == GAME_TRANSFUSION)
 316                 Cbuf_InsertText("alias startmap_sp \"map e1m1\"\n""alias startmap_dm \"map bb1\"\nexec " STARTCONFIGFILENAME "\n");
 317         else if (gamemode == GAME_TEU)
 318                 Cbuf_InsertText("alias startmap_sp \"map start\"\nalias startmap_dm \"map start\"\nexec teu.rc\n");
 319         else
 320                 Cbuf_InsertText("alias startmap_sp \"map start\"\nalias startmap_dm \"map start\"\nexec " STARTCONFIGFILENAME "\n");
 321 }
 322
 323 /*
 324 ===============
 325 Host_LoadConfig_f
 326
 327 Resets key bindings and cvars to defaults and then reloads scripts
 328 ===============
 329 */
 330 void Host_LoadConfig_f(void)
 331 {
 332         // reset all cvars, commands and aliases to init values
 333         Cmd_RestoreInitState();
 334         // prepend a menu restart command to execute after the config
 335         Cbuf_InsertText("\nmenu_restart\n");
 336         // reset cvars to their defaults, and then exec startup scripts again
 337         Host_AddConfigText();
 338 }
 339
 340 /*
 341 =================
 342 SV_ClientPrint
 343
 344 Sends text across to be displayed
 345 FIXME: make this just a stuffed echo?
 346 =================
 347 */
 348 void SV_ClientPrint(const char *msg)
 349 {
 350         if (host_client->netconnection)
 351         {
 352                 MSG_WriteByte(&host_client->netconnection->message, svc_print);
 353                 MSG_WriteString(&host_client->netconnection->message, msg);
 354         }
 355 }
 356
 357 /*
 358 =================
 359 SV_ClientPrintf
 360
 361 Sends text across to be displayed
 362 FIXME: make this just a stuffed echo?
 363 =================
 364 */
 365 void SV_ClientPrintf(const char *fmt, ...)
 366 {
 367         va_list argptr;
 368         char msg[MAX_INPUTLINE];
 369
 370         va_start(argptr,fmt);
 371         dpvsnprintf(msg,sizeof(msg),fmt,argptr);
 372         va_end(argptr);
 373
 374         SV_ClientPrint(msg);
 375 }
 376
 377 /*
 378 =================
 379 SV_BroadcastPrint
 380
 381 Sends text to all active clients
 382 =================
 383 */
 384 void SV_BroadcastPrint(const char *msg)
 385 {
 386         int i;
 387         client_t *client;
 388
 389         for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
 390         {
 391                 if (client->active && client->netconnection)
 392                 {
 393                         MSG_WriteByte(&client->netconnection->message, svc_print);
 394                         MSG_WriteString(&client->netconnection->message, msg);
 395                 }
 396         }
 397
 398         if (sv_echobprint.integer && cls.state == ca_dedicated)
 399                 Con_Print(msg);
 400 }
 401
 402 /*
 403 =================
 404 SV_BroadcastPrintf
 405
 406 Sends text to all active clients
 407 =================
 408 */
 409 void SV_BroadcastPrintf(const char *fmt, ...)
 410 {
 411         va_list argptr;
 412         char msg[MAX_INPUTLINE];
 413
 414         va_start(argptr,fmt);
 415         dpvsnprintf(msg,sizeof(msg),fmt,argptr);
 416         va_end(argptr);
 417
 418         SV_BroadcastPrint(msg);
 419 }
 420
 421 /*
 422 =================
 423 Host_ClientCommands
 424
 425 Send text over to the client to be executed
 426 =================
 427 */
 428 void Host_ClientCommands(const char *fmt, ...)
 429 {
 430         va_list argptr;
 431         char string[MAX_INPUTLINE];
 432
 433         if (!host_client->netconnection)
 434                 return;
 435
 436         va_start(argptr,fmt);
 437         dpvsnprintf(string, sizeof(string), fmt, argptr);
 438         va_end(argptr);
 439
 440         MSG_WriteByte(&host_client->netconnection->message, svc_stufftext);
 441         MSG_WriteString(&host_client->netconnection->message, string);
 442 }
 443
 444 /*
 445 =====================
 446 SV_DropClient
 447
 448 Called when the player is getting totally kicked off the host
 449 if (crash = true), don't bother sending signofs
 450 =====================
 451 */
 452 void SV_DropClient(qboolean crash)
 453 {
 454         prvm_prog_t *prog = SVVM_prog;
 455         int i;
 456         Con_Printf("Client \"%s\" dropped\n", host_client->name);
 457
 458         SV_StopDemoRecording(host_client);
 459
 460         // make sure edict is not corrupt (from a level change for example)
 461         host_client->edict = PRVM_EDICT_NUM(host_client - svs.clients + 1);
 462
 463         if (host_client->netconnection)
 464         {
 465                 // tell the client to be gone
 466                 if (!crash)
 467                 {
 468                         // LordHavoc: no opportunity for resending, so use unreliable 3 times
 469                         unsigned char bufdata[8];
 470                         sizebuf_t buf;
 471                         memset(&buf, 0, sizeof(buf));
 472                         buf.data = bufdata;
 473                         buf.maxsize = sizeof(bufdata);
 474                         MSG_WriteByte(&buf, svc_disconnect);
 475                         NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, false);
 476                         NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, false);
 477                         NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, false);
 478                 }
 479         }
 480
 481         // call qc ClientDisconnect function
 482         // LordHavoc: don't call QC if server is dead (avoids recursive
 483         // Host_Error in some mods when they run out of edicts)
 484         if (host_client->clientconnectcalled && sv.active && host_client->edict)
 485         {
 486                 // call the prog function for removing a client
 487                 // this will set the body to a dead frame, among other things
 488                 int saveSelf = PRVM_serverglobaledict(self);
 489                 host_client->clientconnectcalled = false;
 490                 PRVM_serverglobalfloat(time) = sv.time;
 491                 PRVM_serverglobaledict(self) = PRVM_EDICT_TO_PROG(host_client->edict);
 492                 prog->ExecuteProgram(prog, PRVM_serverfunction(ClientDisconnect), "QC function ClientDisconnect is missing");
 493                 PRVM_serverglobaledict(self) = saveSelf;
 494         }
 495
 496         if (host_client->netconnection)
 497         {
 498                 // break the net connection
 499                 NetConn_Close(host_client->netconnection);
 500                 host_client->netconnection = NULL;
 501         }
 502
 503         // if a download is active, close it
 504         if (host_client->download_file)
 505         {
 506                 Con_DPrintf("Download of %s aborted when %s dropped\n", host_client->download_name, host_client->name);
 507                 FS_Close(host_client->download_file);
 508                 host_client->download_file = NULL;
 509                 host_client->download_name[0] = 0;
 510                 host_client->download_expectedposition = 0;
 511                 host_client->download_started = false;
 512         }
 513
 514         // remove leaving player from scoreboard
 515         host_client->name[0] = 0;
 516         host_client->colors = 0;
 517         host_client->frags = 0;
 518         // send notification to all clients
 519         // get number of client manually just to make sure we get it right...
 520         i = host_client - svs.clients;
 521         MSG_WriteByte (&sv.reliable_datagram, svc_updatename);
 522         MSG_WriteByte (&sv.reliable_datagram, i);
 523         MSG_WriteString (&sv.reliable_datagram, host_client->name);
 524         MSG_WriteByte (&sv.reliable_datagram, svc_updatecolors);
 525         MSG_WriteByte (&sv.reliable_datagram, i);
 526         MSG_WriteByte (&sv.reliable_datagram, host_client->colors);
 527         MSG_WriteByte (&sv.reliable_datagram, svc_updatefrags);
 528         MSG_WriteByte (&sv.reliable_datagram, i);
 529         MSG_WriteShort (&sv.reliable_datagram, host_client->frags);
 530
 531         // free the client now
 532         if (host_client->entitydatabase)
 533                 EntityFrame_FreeDatabase(host_client->entitydatabase);
 534         if (host_client->entitydatabase4)
 535                 EntityFrame4_FreeDatabase(host_client->entitydatabase4);
 536         if (host_client->entitydatabase5)
 537                 EntityFrame5_FreeDatabase(host_client->entitydatabase5);
 538
 539         if (sv.active)
 540         {
 541                 // clear a fields that matter to DP_SV_CLIENTNAME and DP_SV_CLIENTCOLORS, and also frags
 542                 PRVM_ED_ClearEdict(prog, host_client->edict);
 543         }
 544
 545         // clear the client struct (this sets active to false)
 546         memset(host_client, 0, sizeof(*host_client));
 547
 548         // update server listing on the master because player count changed
 549         // (which the master uses for filtering empty/full servers)
 550         NetConn_Heartbeat(1);
 551
 552         if (sv.loadgame)
 553         {
 554                 for (i = 0;i < svs.maxclients;i++)
 555                         if (svs.clients[i].active && !svs.clients[i].spawned)
 556                                 break;
 557                 if (i == svs.maxclients)
 558                 {
 559                         Con_Printf("Loaded game, everyone rejoined - unpausing\n");
 560                         sv.paused = sv.loadgame = false; // we're basically done with loading now
 561                 }
 562         }
 563 }
 564
 565 /*
 566 ==================
 567 Host_ShutdownServer
 568
 569 This only happens at the end of a game, not between levels
 570 ==================
 571 */
 572 void Host_ShutdownServer(void)
 573 {
 574         prvm_prog_t *prog = SVVM_prog;
 575         int i;
 576
 577         Con_DPrintf("Host_ShutdownServer\n");
 578
 579         if (!sv.active)
 580                 return;
 581
 582         NetConn_Heartbeat(2);
 583         NetConn_Heartbeat(2);
 584
 585 // make sure all the clients know we're disconnecting
 586         World_End(&sv.world);
 587         if(prog->loaded)
 588         {
 589                 if(PRVM_serverfunction(SV_Shutdown))
 590                 {
 591                         func_t s = PRVM_serverfunction(SV_Shutdown);
 592                         PRVM_serverglobalfloat(time) = sv.time;
 593                         PRVM_serverfunction(SV_Shutdown) = 0; // prevent it from getting called again
 594                         prog->ExecuteProgram(prog, s,"SV_Shutdown() required");
 595                 }
 596         }
 597         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
 598                 if (host_client->active)
 599                         SV_DropClient(false); // server shutdown
 600
 601         NetConn_CloseServerPorts();
 602
 603         sv.active = false;
 604 //
 605 // clear structures
 606 //
 607         memset(&sv, 0, sizeof(sv));
 608         memset(svs.clients, 0, svs.maxclients*sizeof(client_t));
 609
 610         cl.islocalgame = false;
 611 }
 612
 613
 614 //============================================================================
 615
 616 /*
 617 ===================
 618 Host_GetConsoleCommands
 619
 620 Add them exactly as if they had been typed at the console
 621 ===================
 622 */
 623 static void Host_GetConsoleCommands (void)
 624 {
 625         char *cmd;
 626
 627         while (1)
 628         {
 629                 cmd = Sys_ConsoleInput ();
 630                 if (!cmd)
 631                         break;
 632                 Cbuf_AddText (cmd);
 633         }
 634 }
 635
 636 /*
 637 ==================
 638 Host_TimeReport
 639
 640 Returns a time report string, for example for
 641 ==================
 642 */
 643 const char *Host_TimingReport(char *buf, size_t buflen)
 644 {
 645         return va(buf, buflen, "%.1f%% CPU, %.2f%% lost, offset avg %.1fms, max %.1fms, sdev %.1fms", svs.perf_cpuload * 100, svs.perf_lost * 100, svs.perf_offset_avg * 1000, svs.perf_offset_max * 1000, svs.perf_offset_sdev * 1000);
 646 }
 647
 648 /*
 649 ==================
 650 Host_Frame
 651
 652 Runs all active servers
 653 ==================
 654 */
 655 static void Host_Init(void);
 656 void Host_Main(void)
 657 {
 658         double time1 = 0;
 659         double time2 = 0;
 660         double time3 = 0;
 661         double cl_timer = 0, sv_timer = 0;
 662         double clframetime, deltacleantime, olddirtytime, dirtytime;
 663         double wait;
 664         int pass1, pass2, pass3, i;
 665         char vabuf[1024];
 666
 667         Host_Init();
 668
 669         realtime = 0;
 670         dirtytime = Sys_DirtyTime();
 671         for (;;)
 672         {
 673                 if (setjmp(host_abortframe))
 674                 {
 675                         SCR_ClearLoadingScreen(false);
 676                         continue;                       // something bad happened, or the server disconnected
 677                 }
 678
 679                 olddirtytime = host_dirtytime;
 680                 dirtytime = Sys_DirtyTime();
 681                 deltacleantime = dirtytime - olddirtytime;
 682                 if (deltacleantime < 0)
 683                 {
 684                         // warn if it's significant
 685                         if (deltacleantime < -0.01)
 686                                 Con_Printf("Host_Mingled: time stepped backwards (went from %f to %f, difference %f)\n", olddirtytime, dirtytime, deltacleantime);
 687                         deltacleantime = 0;
 688                 }
 689                 else if (deltacleantime >= 1800)
 690                 {
 691                         Con_Printf("Host_Mingled: time stepped forward (went from %f to %f, difference %f)\n", olddirtytime, dirtytime, deltacleantime);
 692                         deltacleantime = 0;
 693                 }
 694                 realtime += deltacleantime;
 695                 host_dirtytime = dirtytime;
 696
 697                 cl_timer += deltacleantime;
 698                 sv_timer += deltacleantime;
 699
 700                 if (!svs.threaded)
 701                 {
 702                         svs.perf_acc_realtime += deltacleantime;
 703
 704                         // Look for clients who have spawned
 705                         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
 706                                 if(host_client->spawned)
 707                                         if(host_client->netconnection)
 708                                                 break;
 709                         if(i == svs.maxclients)
 710                         {
 711                                 // Nobody is looking? Then we won't do timing...
 712                                 // Instead, reset it to zero
 713                                 svs.perf_acc_realtime = svs.perf_acc_sleeptime = svs.perf_acc_lost = svs.perf_acc_offset = svs.perf_acc_offset_squared = svs.perf_acc_offset_max = svs.perf_acc_offset_samples = 0;
 714                         }
 715                         else if(svs.perf_acc_realtime > 5)
 716                         {
 717                                 svs.perf_cpuload = 1 - svs.perf_acc_sleeptime / svs.perf_acc_realtime;
 718                                 svs.perf_lost = svs.perf_acc_lost / svs.perf_acc_realtime;
 719                                 if(svs.perf_acc_offset_samples > 0)
 720                                 {
 721                                         svs.perf_offset_max = svs.perf_acc_offset_max;
 722                                         svs.perf_offset_avg = svs.perf_acc_offset / svs.perf_acc_offset_samples;
 723                                         svs.perf_offset_sdev = sqrt(svs.perf_acc_offset_squared / svs.perf_acc_offset_samples - svs.perf_offset_avg * svs.perf_offset_avg);
 724                                 }
 725                                 if(svs.perf_lost > 0 && developer_extra.integer)
 726                                         Con_DPrintf("Server can't keep up: %s\n", Host_TimingReport(vabuf, sizeof(vabuf)));
 727                                 svs.perf_acc_realtime = svs.perf_acc_sleeptime = svs.perf_acc_lost = svs.perf_acc_offset = svs.perf_acc_offset_squared = svs.perf_acc_offset_max = svs.perf_acc_offset_samples = 0;
 728                         }
 729                 }
 730
 731                 if (slowmo.value < 0.00001 && slowmo.value != 0)
 732                         Cvar_SetValue("slowmo", 0);
 733                 if (host_framerate.value < 0.00001 && host_framerate.value != 0)
 734                         Cvar_SetValue("host_framerate", 0);
 735
 736                 // keep the random time dependent, but not when playing demos/benchmarking
 737                 if(!*sv_random_seed.string && !cls.demoplayback)
 738                         rand();
 739
 740                 // get new key events
 741                 Key_EventQueue_Unblock();
 742                 SndSys_SendKeyEvents();
 743                 Sys_SendKeyEvents();
 744
 745                 NetConn_UpdateSockets();
 746
 747                 Log_DestBuffer_Flush();
 748
 749                 // receive packets on each main loop iteration, as the main loop may
 750                 // be undersleeping due to select() detecting a new packet
 751                 if (sv.active && !svs.threaded)
 752                         NetConn_ServerFrame();
 753
 754                 Curl_Run();
 755
 756                 // check for commands typed to the host
 757                 Host_GetConsoleCommands();
 758
 759                 // when a server is running we only execute console commands on server frames
 760                 // (this mainly allows frikbot .way config files to work properly by staying in sync with the server qc)
 761                 // otherwise we execute them on client frames
 762                 if (sv.active ? sv_timer > 0 : cl_timer > 0)
 763                 {
 764                         // process console commands
 765 //                      R_TimeReport("preconsole");
 766                         CL_VM_PreventInformationLeaks();
 767                         Cbuf_Frame();
 768 //                      R_TimeReport("console");
 769                 }
 770
 771                 //Con_Printf("%6.0f %6.0f\n", cl_timer * 1000000.0, sv_timer * 1000000.0);
 772
 773                 // if the accumulators haven't become positive yet, wait a while
 774                 if (cls.state == ca_dedicated)
 775                         wait = sv_timer * -1000000.0;
 776                 else if (!sv.active || svs.threaded)
 777                         wait = cl_timer * -1000000.0;
 778                 else
 779                         wait = max(cl_timer, sv_timer) * -1000000.0;
 780
 781                 if (!cls.timedemo && wait >= 1)
 782                 {
 783                         double time0, delta;
 784
 785                         if(host_maxwait.value <= 0)
 786                                 wait = min(wait, 1000000.0);
 787                         else
 788                                 wait = min(wait, host_maxwait.value * 1000.0);
 789                         if(wait < 1)
 790                                 wait = 1; // because we cast to int
 791
 792                         time0 = Sys_DirtyTime();
 793                         if (sv_checkforpacketsduringsleep.integer && !sys_usenoclockbutbenchmark.integer && !svs.threaded)
 794                                 NetConn_SleepMicroseconds((int)wait);
 795                         else
 796                                 Sys_Sleep((int)wait);
 797                         delta = Sys_DirtyTime() - time0;
 798                         if (delta < 0 || delta >= 1800) delta = 0;
 799                         if (!svs.threaded)
 800                                 svs.perf_acc_sleeptime += delta;
 801 //                      R_TimeReport("sleep");
 802                         continue;
 803                 }
 804
 805                 // limit the frametime steps to no more than 100ms each
 806                 if (cl_timer > 0.1)
 807                         cl_timer = 0.1;
 808                 if (sv_timer > 0.1)
 809                 {
 810                         if (!svs.threaded)
 811                                 svs.perf_acc_lost += (sv_timer - 0.1);
 812                         sv_timer = 0.1;
 813                 }
 814
 815                 R_TimeReport("---");
 816
 817         //-------------------
 818         //
 819         // server operations
 820         //
 821         //-------------------
 822
 823                 // limit the frametime steps to no more than 100ms each
 824                 if (sv.active && sv_timer > 0 && !svs.threaded)
 825                 {
 826                         // execute one or more server frames, with an upper limit on how much
 827                         // execution time to spend on server frames to avoid freezing the game if
 828                         // the server is overloaded, this execution time limit means the game will
 829                         // slow down if the server is taking too long.
 830                         int framecount, framelimit = 1;
 831                         double advancetime, aborttime = 0;
 832                         float offset;
 833                         prvm_prog_t *prog = SVVM_prog;
 834
 835                         // run the world state
 836                         // don't allow simulation to run too fast or too slow or logic glitches can occur
 837
 838                         // stop running server frames if the wall time reaches this value
 839                         if (sys_ticrate.value <= 0)
 840                                 advancetime = sv_timer;
 841                         else if (cl.islocalgame && !sv_fixedframeratesingleplayer.integer)
 842                         {
 843                                 // synchronize to the client frametime, but no less than 10ms and no more than 100ms
 844                                 advancetime = bound(0.01, cl_timer, 0.1);
 845                         }
 846                         else
 847                         {
 848                                 advancetime = sys_ticrate.value;
 849                                 // listen servers can run multiple server frames per client frame
 850                                 framelimit = cl_maxphysicsframesperserverframe.integer;
 851                                 aborttime = Sys_DirtyTime() + 0.1;
 852                         }
 853                         if(slowmo.value > 0 && slowmo.value < 1)
 854                                 advancetime = min(advancetime, 0.1 / slowmo.value);
 855                         else
 856                                 advancetime = min(advancetime, 0.1);
 857
 858                         if(advancetime > 0)
 859                         {
 860                                 offset = Sys_DirtyTime() - dirtytime;if (offset < 0 || offset >= 1800) offset = 0;
 861                                 offset += sv_timer;
 862                                 ++svs.perf_acc_offset_samples;
 863                                 svs.perf_acc_offset += offset;
 864                                 svs.perf_acc_offset_squared += offset * offset;
 865                                 if(svs.perf_acc_offset_max < offset)
 866                                         svs.perf_acc_offset_max = offset;
 867                         }
 868
 869                         // only advance time if not paused
 870                         // the game also pauses in singleplayer when menu or console is used
 871                         sv.frametime = advancetime * slowmo.value;
 872                         if (host_framerate.value)
 873                                 sv.frametime = host_framerate.value;
 874                         if (sv.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive || cl.csqc_paused)))
 875                                 sv.frametime = 0;
 876
 877                         for (framecount = 0;framecount < framelimit && sv_timer > 0;framecount++)
 878                         {
 879                                 sv_timer -= advancetime;
 880
 881                                 // move things around and think unless paused
 882                                 if (sv.frametime)
 883                                         SV_Physics();
 884
 885                                 // if this server frame took too long, break out of the loop
 886                                 if (framelimit > 1 && Sys_DirtyTime() >= aborttime)
 887                                         break;
 888                         }
 889                         R_TimeReport("serverphysics");
 890
 891                         // send all messages to the clients
 892                         SV_SendClientMessages();
 893
 894                         if (sv.paused == 1 && realtime > sv.pausedstart && sv.pausedstart > 0) {
 895                                 prog->globals.generic[OFS_PARM0] = realtime - sv.pausedstart;
 896                                 PRVM_serverglobalfloat(time) = sv.time;
 897                                 prog->ExecuteProgram(prog, PRVM_serverfunction(SV_PausedTic), "QC function SV_PausedTic is missing");
 898                         }
 899
 900                         // send an heartbeat if enough time has passed since the last one
 901                         NetConn_Heartbeat(0);
 902                         R_TimeReport("servernetwork");
 903                 }
 904                 else if (!svs.threaded)
 905                 {
 906                         // don't let r_speeds display jump around
 907                         R_TimeReport("serverphysics");
 908                         R_TimeReport("servernetwork");
 909                 }
 910
 911         //-------------------
 912         //
 913         // client operations
 914         //
 915         //-------------------
 916
 917                 if (cls.state != ca_dedicated && (cl_timer > 0 || cls.timedemo || ((vid_activewindow ? cl_maxfps : cl_maxidlefps).value < 1)))
 918                 {
 919                         R_TimeReport("---");
 920                         Collision_Cache_NewFrame();
 921                         R_TimeReport("collisioncache");
 922                         // decide the simulation time
 923                         if (cls.capturevideo.active)
 924                         {
 925                                 //***
 926                                 if (cls.capturevideo.realtime)
 927                                         clframetime = cl.realframetime = max(cl_timer, 1.0 / cls.capturevideo.framerate);
 928                                 else
 929                                 {
 930                                         clframetime = 1.0 / cls.capturevideo.framerate;
 931                                         cl.realframetime = max(cl_timer, clframetime);
 932                                 }
 933                         }
 934                         else if (vid_activewindow && cl_maxfps.value >= 1 && !cls.timedemo)
 935                         {
 936                                 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxfps.value);
 937                                 // when running slow, we need to sleep to keep input responsive
 938                                 wait = bound(0, cl_maxfps_alwayssleep.value * 1000, 100000);
 939                                 if (wait > 0)
 940                                         Sys_Sleep((int)wait);
 941                         }
 942                         else if (!vid_activewindow && cl_maxidlefps.value >= 1 && !cls.timedemo)
 943                                 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxidlefps.value);
 944                         else
 945                                 clframetime = cl.realframetime = cl_timer;
 946
 947                         // apply slowmo scaling
 948                         clframetime *= cl.movevars_timescale;
 949                         // scale playback speed of demos by slowmo cvar
 950                         if (cls.demoplayback)
 951                         {
 952                                 clframetime *= slowmo.value;
 953                                 // if demo playback is paused, don't advance time at all
 954                                 if (cls.demopaused)
 955                                         clframetime = 0;
 956                         }
 957
 958                         // host_framerate overrides all else
 959                         if (host_framerate.value)
 960                                 clframetime = host_framerate.value;
 961
 962                         if (cl.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive || cl.csqc_paused)))
 963                                 clframetime = 0;
 964
 965                         if (cls.timedemo)
 966                                 clframetime = cl.realframetime = cl_timer;
 967
 968                         // deduct the frame time from the accumulator
 969                         cl_timer -= cl.realframetime;
 970
 971                         cl.oldtime = cl.time;
 972                         cl.time += clframetime;
 973
 974                         // update video
 975                         if (host_speeds.integer)
 976                                 time1 = Sys_DirtyTime();
 977                         R_TimeReport("pre-input");
 978
 979                         // Collect input into cmd
 980                         CL_Input();
 981
 982                         R_TimeReport("input");
 983
 984                         // check for new packets
 985                         NetConn_ClientFrame();
 986
 987                         // read a new frame from a demo if needed
 988                         CL_ReadDemoMessage();
 989                         R_TimeReport("clientnetwork");
 990
 991                         // now that packets have been read, send input to server
 992                         CL_SendMove();
 993                         R_TimeReport("sendmove");
 994
 995                         // update client world (interpolate entities, create trails, etc)
 996                         CL_UpdateWorld();
 997                         R_TimeReport("lerpworld");
 998
 999                         CL_Video_Frame();
1000
1001                         R_TimeReport("client");
1002
1003                         CL_UpdateScreen();
1004                         R_TimeReport("render");
1005
1006                         if (host_speeds.integer)
1007                                 time2 = Sys_DirtyTime();
1008
1009                         // update audio
1010                         if(cl.csqc_usecsqclistener)
1011                         {
1012                                 S_Update(&cl.csqc_listenermatrix);
1013                                 cl.csqc_usecsqclistener = false;
1014                         }
1015                         else
1016                                 S_Update(&r_refdef.view.matrix);
1017
1018                         CDAudio_Update();
1019                         R_TimeReport("audio");
1020
1021                         // reset gathering of mouse input
1022                         in_mouse_x = in_mouse_y = 0;
1023
1024                         if (host_speeds.integer)
1025                         {
1026                                 pass1 = (int)((time1 - time3)*1000000);
1027                                 time3 = Sys_DirtyTime();
1028                                 pass2 = (int)((time2 - time1)*1000000);
1029                                 pass3 = (int)((time3 - time2)*1000000);
1030                                 Con_Printf("%6ius total %6ius server %6ius gfx %6ius snd\n",
1031                                                         pass1+pass2+pass3, pass1, pass2, pass3);
1032                         }
1033                 }
1034
1035 #if MEMPARANOIA
1036                 Mem_CheckSentinelsGlobal();
1037 #else
1038                 if (developer_memorydebug.integer)
1039                         Mem_CheckSentinelsGlobal();
1040 #endif
1041
1042                 // if there is some time remaining from this frame, reset the timers
1043                 if (cl_timer >= 0)
1044                         cl_timer = 0;
1045                 if (sv_timer >= 0)
1046                 {
1047                         if (!svs.threaded)
1048                                 svs.perf_acc_lost += sv_timer;
1049                         sv_timer = 0;
1050                 }
1051
1052                 host_framecount++;
1053         }
1054 }
1055
1056 //============================================================================
1057
1058 qboolean vid_opened = false;
1059 void Host_StartVideo(void)
1060 {
1061         if (!vid_opened && cls.state != ca_dedicated)
1062         {
1063                 vid_opened = true;
1064                 // make sure we open sockets before opening video because the Windows Firewall "unblock?" dialog can screw up the graphics context on some graphics drivers
1065                 NetConn_UpdateSockets();
1066                 VID_Start();
1067                 CDAudio_Startup();
1068         }
1069 }
1070
1071 char engineversion[128];
1072
1073 qboolean sys_nostdout = false;
1074
1075 extern qboolean host_stuffcmdsrun;
1076
1077 static qfile_t *locksession_fh = NULL;
1078 static qboolean locksession_run = false;
1079 static void Host_InitSession(void)
1080 {
1081         int i;
1082         Cvar_RegisterVariable(&sessionid);
1083         Cvar_RegisterVariable(&locksession);
1084
1085         // load the session ID into the read-only cvar
1086         if ((i = COM_CheckParm("-sessionid")) && (i + 1 < com_argc))
1087         {
1088                 char vabuf[1024];
1089                 if(com_argv[i+1][0] == '.')
1090                         Cvar_SetQuick(&sessionid, com_argv[i+1]);
1091                 else
1092                         Cvar_SetQuick(&sessionid, va(vabuf, sizeof(vabuf), ".%s", com_argv[i+1]));
1093         }
1094 }
1095 void Host_LockSession(void)
1096 {
1097         if(locksession_run)
1098                 return;
1099         locksession_run = true;
1100         if(locksession.integer != 0)
1101         {
1102                 char vabuf[1024];
1103                 char *p = va(vabuf, sizeof(vabuf), "%slock%s", *fs_userdir ? fs_userdir : fs_basedir, sessionid.string);
1104                 FS_CreatePath(p);
1105                 locksession_fh = FS_SysOpen(p, "wl", false);
1106                 // TODO maybe write the pid into the lockfile, while we are at it? may help server management tools
1107                 if(!locksession_fh)
1108                 {
1109                         if(locksession.integer == 2)
1110                         {
1111                                 Con_Printf("WARNING: session lock %s could not be acquired. Please run with -sessionid and an unique session name. Continuing anyway.\n", p);
1112                         }
1113                         else
1114                         {
1115                                 Sys_Error("session lock %s could not be acquired. Please run with -sessionid and an unique session name.\n", p);
1116                         }
1117                 }
1118         }
1119 }
1120 void Host_UnlockSession(void)
1121 {
1122         if(!locksession_run)
1123                 return;
1124         locksession_run = false;
1125
1126         if(locksession_fh)
1127         {
1128                 FS_Close(locksession_fh);
1129                 // NOTE: we can NOT unlink the lock here, as doing so would
1130                 // create a race condition if another process created it
1131                 // between our close and our unlink
1132                 locksession_fh = NULL;
1133         }
1134 }
1135
1136 /*
1137 ====================
1138 Host_Init
1139 ====================
1140 */
1141 static void Host_Init (void)
1142 {
1143         int i;
1144         const char* os;
1145         char vabuf[1024];
1146
1147         if (COM_CheckParm("-profilegameonly"))
1148                 Sys_AllowProfiling(false);
1149
1150         // LordHavoc: quake never seeded the random number generator before... heh
1151         if (COM_CheckParm("-benchmark"))
1152                 srand(0); // predictable random sequence for -benchmark
1153         else
1154                 srand((unsigned int)time(NULL));
1155
1156         // FIXME: this is evil, but possibly temporary
1157         // LordHavoc: doesn't seem very temporary...
1158         // LordHavoc: made this a saved cvar
1159 // COMMANDLINEOPTION: Console: -developer enables warnings and other notices (RECOMMENDED for mod developers)
1160         if (COM_CheckParm("-developer"))
1161         {
1162                 developer.value = developer.integer = 1;
1163                 developer.string = "1";
1164         }
1165
1166         if (COM_CheckParm("-developer2") || COM_CheckParm("-developer3"))
1167         {
1168                 developer.value = developer.integer = 1;
1169                 developer.string = "1";
1170                 developer_extra.value = developer_extra.integer = 1;
1171                 developer_extra.string = "1";
1172                 developer_insane.value = developer_insane.integer = 1;
1173                 developer_insane.string = "1";
1174                 developer_memory.value = developer_memory.integer = 1;
1175                 developer_memory.string = "1";
1176                 developer_memorydebug.value = developer_memorydebug.integer = 1;
1177                 developer_memorydebug.string = "1";
1178         }
1179
1180         if (COM_CheckParm("-developer3"))
1181         {
1182                 gl_paranoid.integer = 1;gl_paranoid.string = "1";
1183                 gl_printcheckerror.integer = 1;gl_printcheckerror.string = "1";
1184         }
1185
1186 // COMMANDLINEOPTION: Console: -nostdout disables text output to the terminal the game was launched from
1187         if (COM_CheckParm("-nostdout"))
1188                 sys_nostdout = 1;
1189
1190         // used by everything
1191         Memory_Init();
1192
1193         // initialize console command/cvar/alias/command execution systems
1194         Cmd_Init();
1195
1196         // initialize memory subsystem cvars/commands
1197         Memory_Init_Commands();
1198
1199         // initialize console and logging and its cvars/commands
1200         Con_Init();
1201
1202         // initialize various cvars that could not be initialized earlier
1203         u8_Init();
1204         Curl_Init_Commands();
1205         Cmd_Init_Commands();
1206         Sys_Init_Commands();
1207         COM_Init_Commands();
1208         FS_Init_Commands();
1209
1210         // initialize console window (only used by sys_win.c)
1211         Sys_InitConsole();
1212
1213         // initialize the self-pack (must be before COM_InitGameType as it may add command line options)
1214         FS_Init_SelfPack();
1215
1216         // detect gamemode from commandline options or executable name
1217         COM_InitGameType();
1218
1219         // construct a version string for the corner of the console
1220         os = DP_OS_NAME;
1221         dpsnprintf (engineversion, sizeof (engineversion), "%s %s %s", gamename, os, buildstring);
1222         Con_Printf("%s\n", engineversion);
1223
1224         // initialize process nice level
1225         Sys_InitProcessNice();
1226
1227         // initialize ixtable
1228         Mathlib_Init();
1229
1230         // initialize filesystem (including fs_basedir, fs_gamedir, -game, scr_screenshot_name)
1231         FS_Init();
1232
1233         // register the cvars for session locking
1234         Host_InitSession();
1235
1236         // must be after FS_Init
1237         Crypto_Init();
1238         Crypto_Init_Commands();
1239
1240         NetConn_Init();
1241         Curl_Init();
1242         //PR_Init();
1243         //PR_Cmd_Init();
1244         PRVM_Init();
1245         Mod_Init();
1246         World_Init();
1247         SV_Init();
1248         V_Init(); // some cvars needed by server player physics (cl_rollangle etc)
1249         Host_InitCommands();
1250         Host_InitLocal();
1251         Host_ServerOptions();
1252
1253         Thread_Init();
1254
1255         if (cls.state == ca_dedicated)
1256                 Cmd_AddCommand ("disconnect", CL_Disconnect_f, "disconnect from server (or disconnect all clients if running a server)");
1257         else
1258         {
1259                 Con_DPrintf("Initializing client\n");
1260
1261                 R_Modules_Init();
1262                 Palette_Init();
1263                 MR_Init_Commands();
1264                 VID_Shared_Init();
1265                 VID_Init();
1266                 Render_Init();
1267                 S_Init();
1268                 CDAudio_Init();
1269                 Key_Init();
1270                 CL_Init();
1271         }
1272
1273         // save off current state of aliases, commands and cvars for later restore if FS_GameDir_f is called
1274         // NOTE: menu commands are freed by Cmd_RestoreInitState
1275         Cmd_SaveInitState();
1276
1277         // FIXME: put this into some neat design, but the menu should be allowed to crash
1278         // without crashing the whole game, so this should just be a short-time solution
1279
1280         // here comes the not so critical stuff
1281         if (setjmp(host_abortframe)) {
1282                 return;
1283         }
1284
1285         Host_AddConfigText();
1286         Cbuf_Execute();
1287
1288         // if stuffcmds wasn't run, then quake.rc is probably missing, use default
1289         if (!host_stuffcmdsrun)
1290         {
1291                 Cbuf_AddText("exec default.cfg\nexec " CONFIGFILENAME "\nexec autoexec.cfg\nstuffcmds\n");
1292                 Cbuf_Execute();
1293         }
1294
1295         // put up the loading image so the user doesn't stare at a black screen...
1296         SCR_BeginLoadingPlaque();
1297
1298         if (cls.state != ca_dedicated)
1299         {
1300                 MR_Init();
1301         }
1302
1303         // check for special benchmark mode
1304 // 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)
1305         i = COM_CheckParm("-benchmark");
1306         if (i && i + 1 < com_argc)
1307         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1308         {
1309                 Cbuf_AddText(va(vabuf, sizeof(vabuf), "timedemo %s\n", com_argv[i + 1]));
1310                 Cbuf_Execute();
1311         }
1312
1313         // check for special demo mode
1314 // COMMANDLINEOPTION: Client: -demo <demoname> runs a playdemo and quits
1315         i = COM_CheckParm("-demo");
1316         if (i && i + 1 < com_argc)
1317         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1318         {
1319                 Cbuf_AddText(va(vabuf, sizeof(vabuf), "playdemo %s\n", com_argv[i + 1]));
1320                 Cbuf_Execute();
1321         }
1322
1323 // COMMANDLINEOPTION: Client: -capturedemo <demoname> captures a playdemo and quits
1324         i = COM_CheckParm("-capturedemo");
1325         if (i && i + 1 < com_argc)
1326         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1327         {
1328                 Cbuf_AddText(va(vabuf, sizeof(vabuf), "playdemo %s\ncl_capturevideo 1\n", com_argv[i + 1]));
1329                 Cbuf_Execute();
1330         }
1331
1332         if (cls.state == ca_dedicated || COM_CheckParm("-listen"))
1333         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1334         {
1335                 Cbuf_AddText("startmap_dm\n");
1336                 Cbuf_Execute();
1337         }
1338
1339         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1340         {
1341                 Cbuf_AddText("togglemenu\n");
1342                 Cbuf_Execute();
1343         }
1344
1345         Con_DPrint("========Initialized=========\n");
1346
1347         //Host_StartVideo();
1348
1349         if (cls.state != ca_dedicated)
1350                 SV_StartThread();
1351 }
1352
1353
1354 /*
1355 ===============
1356 Host_Shutdown
1357
1358 FIXME: this is a callback from Sys_Quit and Sys_Error.  It would be better
1359 to run quit through here before the final handoff to the sys code.
1360 ===============
1361 */
1362 void Host_Shutdown(void)
1363 {
1364         static qboolean isdown = false;
1365
1366         if (isdown)
1367         {
1368                 Con_Print("recursive shutdown\n");
1369                 return;
1370         }
1371         if (setjmp(host_abortframe))
1372         {
1373                 Con_Print("aborted the quitting frame?!?\n");
1374                 return;
1375         }
1376         isdown = true;
1377
1378         // be quiet while shutting down
1379         S_StopAllSounds();
1380
1381         // end the server thread
1382         if (svs.threaded)
1383                 SV_StopThread();
1384
1385         // disconnect client from server if active
1386         CL_Disconnect();
1387
1388         // shut down local server if active
1389         SV_LockThreadMutex();
1390         Host_ShutdownServer ();
1391         SV_UnlockThreadMutex();
1392
1393         // Shutdown menu
1394         if(MR_Shutdown)
1395                 MR_Shutdown();
1396
1397         // AK shutdown PRVM
1398         // AK hmm, no PRVM_Shutdown(); yet
1399
1400         CL_Video_Shutdown();
1401
1402         Host_SaveConfig();
1403
1404         CDAudio_Shutdown ();
1405         S_Terminate ();
1406         Curl_Shutdown ();
1407         NetConn_Shutdown ();
1408         //PR_Shutdown ();
1409
1410         if (cls.state != ca_dedicated)
1411         {
1412                 R_Modules_Shutdown();
1413                 VID_Shutdown();
1414         }
1415
1416         SV_StopThread();
1417         Thread_Shutdown();
1418         Cmd_Shutdown();
1419         Key_Shutdown();
1420         CL_Shutdown();
1421         Sys_Shutdown();
1422         Log_Close();
1423         Crypto_Shutdown();
1424
1425         Host_UnlockSession();
1426
1427         S_Shutdown();
1428         Con_Shutdown();
1429         Memory_Shutdown();
1430 }
1431