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