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 <time.h>
  23 #include "quakedef.h"
  24 #include "libcurl.h"
  25 #include "cdaudio.h"
  26 #include "cl_video.h"
  27 #include "progsvm.h"
  28 #include "csprogs.h"
  29
  30 /*
  31
  32 A server can always be started, even if the system started out as a client
  33 to a remote system.
  34
  35 A client can NOT be started if the system started as a dedicated server.
  36
  37 Memory is cleared / released when a server or client begins, not when they end.
  38
  39 */
  40
  41 // how many frames have occurred
  42 // (checked by Host_Error and Host_SaveConfig_f)
  43 int host_framecount = 0;
  44 // LordHavoc: set when quit is executed
  45 qboolean host_shuttingdown = false;
  46
  47 // the real time since application started, without any slowmo or clamping
  48 double realtime;
  49
  50 // current client
  51 client_t *host_client;
  52
  53 jmp_buf host_abortframe;
  54
  55 // pretend frames take this amount of time (in seconds), 0 = realtime
  56 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"};
  57 // shows time used by certain subsystems
  58 cvar_t host_speeds = {0, "host_speeds","0", "reports how much time is used in server/graphics/sound"};
  59 // LordHavoc: framerate upper cap
  60 cvar_t cl_maxfps = {CVAR_SAVE, "cl_maxfps", "1000", "maximum fps cap, if game is running faster than this it will wait before running another frame (useful to make cpu time available to other programs)"};
  61 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"};
  62
  63 cvar_t developer = {0, "developer","0", "prints additional debugging messages and information (recommended for modders and level designers)"};
  64 cvar_t developer_entityparsing = {0, "developer_entityparsing", "0", "prints detailed network entities information each time a packet is received"};
  65
  66 cvar_t timestamps = {CVAR_SAVE, "timestamps", "0", "prints timestamps on console messages"};
  67 cvar_t timeformat = {CVAR_SAVE, "timeformat", "[%Y-%m-%d %H:%M:%S] ", "time format to use on timestamped console messages"};
  68
  69 /*
  70 ================
  71 Host_AbortCurrentFrame
  72
  73 aborts the current host frame and goes on with the next one
  74 ================
  75 */
  76 void Host_AbortCurrentFrame(void)
  77 {
  78         longjmp (host_abortframe, 1);
  79 }
  80
  81 /*
  82 ================
  83 Host_Error
  84
  85 This shuts down both the client and server
  86 ================
  87 */
  88 void Host_Error (const char *error, ...)
  89 {
  90         static char hosterrorstring1[MAX_INPUTLINE];
  91         static char hosterrorstring2[MAX_INPUTLINE];
  92         static qboolean hosterror = false;
  93         va_list argptr;
  94
  95         // turn off rcon redirect if it was active when the crash occurred
  96         rcon_redirect = false;
  97
  98         va_start (argptr,error);
  99         dpvsnprintf (hosterrorstring1,sizeof(hosterrorstring1),error,argptr);
 100         va_end (argptr);
 101
 102         Con_Printf("Host_Error: %s\n", hosterrorstring1);
 103
 104         // LordHavoc: if crashing very early, or currently shutting down, do
 105         // Sys_Error instead
 106         if (host_framecount < 3 || host_shuttingdown)
 107                 Sys_Error ("Host_Error: %s", hosterrorstring1);
 108
 109         if (hosterror)
 110                 Sys_Error ("Host_Error: recursively entered (original error was: %s    new error is: %s)", hosterrorstring2, hosterrorstring1);
 111         hosterror = true;
 112
 113         strlcpy(hosterrorstring2, hosterrorstring1, sizeof(hosterrorstring2));
 114
 115         CL_Parse_DumpPacket();
 116
 117         CL_Parse_ErrorCleanUp();
 118
 119         //PR_Crash();
 120
 121         // print out where the crash happened, if it was caused by QC (and do a cleanup)
 122         PRVM_Crash();
 123
 124
 125         Host_ShutdownServer ();
 126
 127         if (cls.state == ca_dedicated)
 128                 Sys_Error ("Host_Error: %s",hosterrorstring2);  // dedicated servers exit
 129
 130         CL_Disconnect ();
 131         cls.demonum = -1;
 132
 133         hosterror = false;
 134
 135         Host_AbortCurrentFrame();
 136 }
 137
 138 void Host_ServerOptions (void)
 139 {
 140         int i;
 141
 142         // general default
 143         svs.maxclients = 8;
 144
 145 // COMMANDLINEOPTION: Server: -dedicated [playerlimit] starts a dedicated server (with a command console), default playerlimit is 8
 146 // COMMANDLINEOPTION: Server: -listen [playerlimit] starts a multiplayer server with graphical client, like singleplayer but other players can connect, default playerlimit is 8
 147         // if no client is in the executable or -dedicated is specified on
 148         // commandline, start a dedicated server
 149         i = COM_CheckParm ("-dedicated");
 150         if (i || !cl_available)
 151         {
 152                 cls.state = ca_dedicated;
 153                 // check for -dedicated specifying how many players
 154                 if (i && i + 1 < com_argc && atoi (com_argv[i+1]) >= 1)
 155                         svs.maxclients = atoi (com_argv[i+1]);
 156                 if (COM_CheckParm ("-listen"))
 157                         Con_Printf ("Only one of -dedicated or -listen can be specified\n");
 158                 // default sv_public on for dedicated servers (often hosted by serious administrators), off for listen servers (often hosted by clueless users)
 159                 Cvar_SetValue("sv_public", 1);
 160         }
 161         else if (cl_available)
 162         {
 163                 // client exists and not dedicated, check if -listen is specified
 164                 cls.state = ca_disconnected;
 165                 i = COM_CheckParm ("-listen");
 166                 if (i)
 167                 {
 168                         // default players unless specified
 169                         if (i + 1 < com_argc && atoi (com_argv[i+1]) >= 1)
 170                                 svs.maxclients = atoi (com_argv[i+1]);
 171                 }
 172                 else
 173                 {
 174                         // default players in some games, singleplayer in most
 175                         if (gamemode != GAME_GOODVSBAD2 && gamemode != GAME_NEXUIZ && gamemode != GAME_BATTLEMECH)
 176                                 svs.maxclients = 1;
 177                 }
 178         }
 179
 180         svs.maxclients = bound(1, svs.maxclients, MAX_SCOREBOARD);
 181
 182         svs.clients = (client_t *)Mem_Alloc(sv_mempool, sizeof(client_t) * svs.maxclients);
 183
 184         if (svs.maxclients > 1 && !deathmatch.integer && !coop.integer)
 185                 Cvar_SetValueQuick(&deathmatch, 1);
 186 }
 187
 188 /*
 189 =======================
 190 Host_InitLocal
 191 ======================
 192 */
 193 void Host_SaveConfig_f(void);
 194 void Host_LoadConfig_f(void);
 195 static void Host_InitLocal (void)
 196 {
 197         Cmd_AddCommand("saveconfig", Host_SaveConfig_f, "save settings to config.cfg immediately (also automatic when quitting)");
 198         Cmd_AddCommand("loadconfig", Host_LoadConfig_f, "reset everything and reload configs");
 199
 200         Cvar_RegisterVariable (&host_framerate);
 201         Cvar_RegisterVariable (&host_speeds);
 202         Cvar_RegisterVariable (&cl_maxfps);
 203         Cvar_RegisterVariable (&cl_maxidlefps);
 204
 205         Cvar_RegisterVariable (&developer);
 206         Cvar_RegisterVariable (&developer_entityparsing);
 207
 208         Cvar_RegisterVariable (&timestamps);
 209         Cvar_RegisterVariable (&timeformat);
 210 }
 211
 212
 213 /*
 214 ===============
 215 Host_SaveConfig_f
 216
 217 Writes key bindings and archived cvars to config.cfg
 218 ===============
 219 */
 220 void Host_SaveConfig_f(void)
 221 {
 222         qfile_t *f;
 223
 224 // dedicated servers initialize the host but don't parse and set the
 225 // config.cfg cvars
 226         // LordHavoc: don't save a config if it crashed in startup
 227         if (host_framecount >= 3 && cls.state != ca_dedicated && !COM_CheckParm("-benchmark") && !COM_CheckParm("-capturedemo"))
 228         {
 229                 f = FS_Open ("config.cfg", "wb", false, false);
 230                 if (!f)
 231                 {
 232                         Con_Print("Couldn't write config.cfg.\n");
 233                         return;
 234                 }
 235
 236                 Key_WriteBindings (f);
 237                 Cvar_WriteVariables (f);
 238
 239                 FS_Close (f);
 240         }
 241 }
 242
 243
 244 /*
 245 ===============
 246 Host_LoadConfig_f
 247
 248 Resets key bindings and cvars to defaults and then reloads scripts
 249 ===============
 250 */
 251 void Host_LoadConfig_f(void)
 252 {
 253         // unlock the cvar default strings so they can be updated by the new default.cfg
 254         Cvar_UnlockDefaults();
 255         // reset cvars to their defaults, and then exec startup scripts again
 256         Cbuf_InsertText("cvar_resettodefaults_all;exec quake.rc\n");
 257 }
 258
 259 /*
 260 =================
 261 SV_ClientPrint
 262
 263 Sends text across to be displayed
 264 FIXME: make this just a stuffed echo?
 265 =================
 266 */
 267 void SV_ClientPrint(const char *msg)
 268 {
 269         if (host_client->netconnection)
 270         {
 271                 MSG_WriteByte(&host_client->netconnection->message, svc_print);
 272                 MSG_WriteString(&host_client->netconnection->message, msg);
 273         }
 274 }
 275
 276 /*
 277 =================
 278 SV_ClientPrintf
 279
 280 Sends text across to be displayed
 281 FIXME: make this just a stuffed echo?
 282 =================
 283 */
 284 void SV_ClientPrintf(const char *fmt, ...)
 285 {
 286         va_list argptr;
 287         char msg[MAX_INPUTLINE];
 288
 289         va_start(argptr,fmt);
 290         dpvsnprintf(msg,sizeof(msg),fmt,argptr);
 291         va_end(argptr);
 292
 293         SV_ClientPrint(msg);
 294 }
 295
 296 /*
 297 =================
 298 SV_BroadcastPrint
 299
 300 Sends text to all active clients
 301 =================
 302 */
 303 void SV_BroadcastPrint(const char *msg)
 304 {
 305         int i;
 306         client_t *client;
 307
 308         for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
 309         {
 310                 if (client->active && client->netconnection)
 311                 {
 312                         MSG_WriteByte(&client->netconnection->message, svc_print);
 313                         MSG_WriteString(&client->netconnection->message, msg);
 314                 }
 315         }
 316
 317         if (sv_echobprint.integer && cls.state == ca_dedicated)
 318                 Con_Print(msg);
 319 }
 320
 321 /*
 322 =================
 323 SV_BroadcastPrintf
 324
 325 Sends text to all active clients
 326 =================
 327 */
 328 void SV_BroadcastPrintf(const char *fmt, ...)
 329 {
 330         va_list argptr;
 331         char msg[MAX_INPUTLINE];
 332
 333         va_start(argptr,fmt);
 334         dpvsnprintf(msg,sizeof(msg),fmt,argptr);
 335         va_end(argptr);
 336
 337         SV_BroadcastPrint(msg);
 338 }
 339
 340 /*
 341 =================
 342 Host_ClientCommands
 343
 344 Send text over to the client to be executed
 345 =================
 346 */
 347 void Host_ClientCommands(const char *fmt, ...)
 348 {
 349         va_list argptr;
 350         char string[MAX_INPUTLINE];
 351
 352         if (!host_client->netconnection)
 353                 return;
 354
 355         va_start(argptr,fmt);
 356         dpvsnprintf(string, sizeof(string), fmt, argptr);
 357         va_end(argptr);
 358
 359         MSG_WriteByte(&host_client->netconnection->message, svc_stufftext);
 360         MSG_WriteString(&host_client->netconnection->message, string);
 361 }
 362
 363 /*
 364 =====================
 365 SV_DropClient
 366
 367 Called when the player is getting totally kicked off the host
 368 if (crash = true), don't bother sending signofs
 369 =====================
 370 */
 371 void SV_DropClient(qboolean crash)
 372 {
 373         int i;
 374         Con_Printf("Client \"%s\" dropped\n", host_client->name);
 375
 376         // make sure edict is not corrupt (from a level change for example)
 377         host_client->edict = PRVM_EDICT_NUM(host_client - svs.clients + 1);
 378
 379         if (host_client->netconnection)
 380         {
 381                 // free the client (the body stays around)
 382                 if (!crash)
 383                 {
 384                         // LordHavoc: no opportunity for resending, so use unreliable 3 times
 385                         unsigned char bufdata[8];
 386                         sizebuf_t buf;
 387                         memset(&buf, 0, sizeof(buf));
 388                         buf.data = bufdata;
 389                         buf.maxsize = sizeof(bufdata);
 390                         MSG_WriteByte(&buf, svc_disconnect);
 391                         NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, false);
 392                         NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, false);
 393                         NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, false);
 394                 }
 395                 // break the net connection
 396                 NetConn_Close(host_client->netconnection);
 397                 host_client->netconnection = NULL;
 398         }
 399
 400         // call qc ClientDisconnect function
 401         // LordHavoc: don't call QC if server is dead (avoids recursive
 402         // Host_Error in some mods when they run out of edicts)
 403         if (host_client->clientconnectcalled && sv.active && host_client->edict)
 404         {
 405                 // call the prog function for removing a client
 406                 // this will set the body to a dead frame, among other things
 407                 int saveSelf = prog->globals.server->self;
 408                 host_client->clientconnectcalled = false;
 409                 prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
 410                 PRVM_ExecuteProgram(prog->globals.server->ClientDisconnect, "QC function ClientDisconnect is missing");
 411                 prog->globals.server->self = saveSelf;
 412         }
 413
 414         // if a download is active, close it
 415         if (host_client->download_file)
 416         {
 417                 Con_DPrintf("Download of %s aborted when %s dropped\n", host_client->download_name, host_client->name);
 418                 FS_Close(host_client->download_file);
 419                 host_client->download_file = NULL;
 420                 host_client->download_name[0] = 0;
 421                 host_client->download_expectedposition = 0;
 422                 host_client->download_started = false;
 423         }
 424
 425         // remove leaving player from scoreboard
 426         host_client->name[0] = 0;
 427         host_client->colors = 0;
 428         host_client->frags = 0;
 429         // send notification to all clients
 430         // get number of client manually just to make sure we get it right...
 431         i = host_client - svs.clients;
 432         MSG_WriteByte (&sv.reliable_datagram, svc_updatename);
 433         MSG_WriteByte (&sv.reliable_datagram, i);
 434         MSG_WriteString (&sv.reliable_datagram, host_client->name);
 435         MSG_WriteByte (&sv.reliable_datagram, svc_updatecolors);
 436         MSG_WriteByte (&sv.reliable_datagram, i);
 437         MSG_WriteByte (&sv.reliable_datagram, host_client->colors);
 438         MSG_WriteByte (&sv.reliable_datagram, svc_updatefrags);
 439         MSG_WriteByte (&sv.reliable_datagram, i);
 440         MSG_WriteShort (&sv.reliable_datagram, host_client->frags);
 441
 442         // free the client now
 443         if (host_client->entitydatabase)
 444                 EntityFrame_FreeDatabase(host_client->entitydatabase);
 445         if (host_client->entitydatabase4)
 446                 EntityFrame4_FreeDatabase(host_client->entitydatabase4);
 447         if (host_client->entitydatabase5)
 448                 EntityFrame5_FreeDatabase(host_client->entitydatabase5);
 449
 450         if (sv.active)
 451         {
 452                 // clear a fields that matter to DP_SV_CLIENTNAME and DP_SV_CLIENTCOLORS, and also frags
 453                 PRVM_ED_ClearEdict(host_client->edict);
 454         }
 455
 456         // clear the client struct (this sets active to false)
 457         memset(host_client, 0, sizeof(*host_client));
 458
 459         // update server listing on the master because player count changed
 460         // (which the master uses for filtering empty/full servers)
 461         NetConn_Heartbeat(1);
 462 }
 463
 464 /*
 465 ==================
 466 Host_ShutdownServer
 467
 468 This only happens at the end of a game, not between levels
 469 ==================
 470 */
 471 void Host_ShutdownServer(void)
 472 {
 473         int i;
 474
 475         Con_DPrintf("Host_ShutdownServer\n");
 476
 477         if (!sv.active)
 478                 return;
 479
 480         NetConn_Heartbeat(2);
 481         NetConn_Heartbeat(2);
 482
 483 // make sure all the clients know we're disconnecting
 484         SV_VM_Begin();
 485         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
 486                 if (host_client->active)
 487                         SV_DropClient(false); // server shutdown
 488         SV_VM_End();
 489
 490         NetConn_CloseServerPorts();
 491
 492         sv.active = false;
 493 //
 494 // clear structures
 495 //
 496         memset(&sv, 0, sizeof(sv));
 497         memset(svs.clients, 0, svs.maxclients*sizeof(client_t));
 498 }
 499
 500
 501 //============================================================================
 502
 503 /*
 504 ===================
 505 Host_GetConsoleCommands
 506
 507 Add them exactly as if they had been typed at the console
 508 ===================
 509 */
 510 void Host_GetConsoleCommands (void)
 511 {
 512         char *cmd;
 513
 514         while (1)
 515         {
 516                 cmd = Sys_ConsoleInput ();
 517                 if (!cmd)
 518                         break;
 519                 Cbuf_AddText (cmd);
 520         }
 521 }
 522
 523 /*
 524 ==================
 525 Host_TimeReport
 526
 527 Returns a time report string, for example for
 528 ==================
 529 */
 530 const char *Host_TimingReport()
 531 {
 532         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);
 533 }
 534
 535 /*
 536 ==================
 537 Host_Frame
 538
 539 Runs all active servers
 540 ==================
 541 */
 542 static void Host_Init(void);
 543 void Host_Main(void)
 544 {
 545         double time1 = 0;
 546         double time2 = 0;
 547         double time3 = 0;
 548         double cl_timer, sv_timer;
 549         double clframetime, deltarealtime, oldrealtime;
 550         double wait;
 551         int pass1, pass2, pass3, i;
 552
 553         Host_Init();
 554
 555         cl_timer = 0;
 556         sv_timer = 0;
 557
 558         realtime = Sys_DoubleTime();
 559         for (;;)
 560         {
 561                 if (setjmp(host_abortframe))
 562                         continue;                       // something bad happened, or the server disconnected
 563
 564                 oldrealtime = realtime;
 565                 realtime = Sys_DoubleTime();
 566
 567                 deltarealtime = realtime - oldrealtime;
 568                 cl_timer += deltarealtime;
 569                 sv_timer += deltarealtime;
 570
 571                 svs.perf_acc_realtime += deltarealtime;
 572
 573                 // Look for clients who have spawned
 574                 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
 575                         if(host_client->spawned)
 576                                 if(host_client->netconnection)
 577                                         break;
 578                 if(i == svs.maxclients)
 579                 {
 580                         // Nobody is looking? Then we won't do timing...
 581                         // Instead, reset it to zero
 582                         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;
 583                 }
 584                 else if(svs.perf_acc_realtime > 5)
 585                 {
 586                         svs.perf_cpuload = 1 - svs.perf_acc_sleeptime / svs.perf_acc_realtime;
 587                         svs.perf_lost = svs.perf_acc_lost / svs.perf_acc_realtime;
 588                         if(svs.perf_acc_offset_samples > 0)
 589                         {
 590                                 svs.perf_offset_max = svs.perf_acc_offset_max;
 591                                 svs.perf_offset_avg = svs.perf_acc_offset / svs.perf_acc_offset_samples;
 592                                 svs.perf_offset_sdev = sqrt(svs.perf_acc_offset_squared / svs.perf_acc_offset_samples - svs.perf_offset_avg * svs.perf_offset_avg);
 593                         }
 594                         if(svs.perf_lost > 0)
 595                                 Con_DPrintf("Server can't keep up: %s\n", Host_TimingReport());
 596                         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;
 597                 }
 598
 599                 if (slowmo.value < 0)
 600                         Cvar_SetValue("slowmo", 0);
 601                 if (host_framerate.value < 0.00001 && host_framerate.value != 0)
 602                         Cvar_SetValue("host_framerate", 0);
 603                 if (cl_maxfps.value < 1)
 604                         Cvar_SetValue("cl_maxfps", 1);
 605
 606                 // keep the random time dependent, but not when playing demos/benchmarking
 607                 if(!*sv_random_seed.string && !cls.demoplayback)
 608                         rand();
 609
 610                 cl.islocalgame = NetConn_IsLocalGame();
 611
 612                 // get new key events
 613                 Sys_SendKeyEvents();
 614
 615                 NetConn_UpdateSockets();
 616
 617                 Log_DestBuffer_Flush();
 618
 619                 // receive packets on each main loop iteration, as the main loop may
 620                 // be undersleeping due to select() detecting a new packet
 621                 if (sv.active)
 622                         NetConn_ServerFrame();
 623
 624                 Curl_Run();
 625
 626                 // check for commands typed to the host
 627                 Host_GetConsoleCommands();
 628
 629                 // when a server is running we only execute console commands on server frames
 630                 // (this mainly allows frikbot .way config files to work properly by staying in sync with the server qc)
 631                 // otherwise we execute them on all frames
 632                 if (sv_timer > 0 || !sv.active)
 633                 {
 634                         // process console commands
 635                         Cbuf_Execute();
 636                 }
 637
 638                 //Con_Printf("%6.0f %6.0f\n", cl_timer * 1000000.0, sv_timer * 1000000.0);
 639
 640                 // if the accumulators haven't become positive yet, wait a while
 641                 if (cls.state == ca_dedicated)
 642                         wait = sv_timer * -1000000.0;
 643                 else if (!sv.active)
 644                         wait = cl_timer * -1000000.0;
 645                 else
 646                         wait = max(cl_timer, sv_timer) * -1000000.0;
 647                 if (wait > 100000)
 648                         wait = 100000;
 649
 650                 if (!cls.timedemo && wait > 0)
 651                 {
 652                         double time0 = Sys_DoubleTime();
 653                         if (sv_checkforpacketsduringsleep.integer)
 654                         {
 655                                 if (wait >= 1)
 656                                         NetConn_SleepMicroseconds((int)wait);
 657                         }
 658                         else
 659                         {
 660                                 if (wait >= 1000)
 661                                         Sys_Sleep((int)wait / 1000);
 662                         }
 663                         svs.perf_acc_sleeptime += Sys_DoubleTime() - time0;
 664                         continue;
 665                 }
 666
 667         //-------------------
 668         //
 669         // server operations
 670         //
 671         //-------------------
 672
 673                 // limit the frametime steps to no more than 100ms each
 674                 if (cl_timer > 0.1)
 675                         cl_timer = 0.1;
 676                 if (sv_timer > 0.1)
 677                 {
 678                         svs.perf_acc_lost += (sv_timer - 0.1);
 679                         sv_timer = 0.1;
 680                 }
 681
 682                 if (sv.active && sv_timer > 0)
 683                 {
 684                         // execute one or more server frames, with an upper limit on how much
 685                         // execution time to spend on server frames to avoid freezing the game if
 686                         // the server is overloaded, this execution time limit means the game will
 687                         // slow down if the server is taking too long.
 688                         int framecount, framelimit = 1;
 689                         double advancetime, aborttime = 0;
 690                         float offset;
 691
 692                         // run the world state
 693                         // don't allow simulation to run too fast or too slow or logic glitches can occur
 694
 695                         // stop running server frames if the wall time reaches this value
 696                         if (sys_ticrate.value <= 0)
 697                                 advancetime = sv_timer;
 698                         else if (cl.islocalgame && !sv_fixedframeratesingleplayer.integer)
 699                         {
 700                                 // synchronize to the client frametime, but no less than 10ms and no more than sys_ticrate
 701                                 advancetime = bound(0.01, cl_timer, sys_ticrate.value);
 702                                 framelimit = 10;
 703                                 aborttime = realtime + 0.1;
 704                         }
 705                         else
 706                         {
 707                                 advancetime = sys_ticrate.value;
 708                                 // listen servers can run multiple server frames per client frame
 709                                 if (cls.state == ca_connected)
 710                                 {
 711                                         framelimit = 10;
 712                                         aborttime = realtime + 0.1;
 713                                 }
 714                         }
 715                         advancetime = min(advancetime, 0.1);
 716
 717                         if(advancetime > 0)
 718                         {
 719                                 offset = sv_timer + (Sys_DoubleTime() - realtime);
 720                                 ++svs.perf_acc_offset_samples;
 721                                 svs.perf_acc_offset += offset;
 722                                 svs.perf_acc_offset_squared += offset * offset;
 723                                 if(svs.perf_acc_offset_max < offset)
 724                                         svs.perf_acc_offset_max = offset;
 725                         }
 726
 727                         // only advance time if not paused
 728                         // the game also pauses in singleplayer when menu or console is used
 729                         sv.frametime = advancetime * slowmo.value;
 730                         if (host_framerate.value)
 731                                 sv.frametime = host_framerate.value;
 732                         if (sv.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive)))
 733                                 sv.frametime = 0;
 734
 735                         // setup the VM frame
 736                         SV_VM_Begin();
 737
 738                         for (framecount = 0;framecount < framelimit && sv_timer > 0;framecount++)
 739                         {
 740                                 sv_timer -= advancetime;
 741
 742                                 // move things around and think unless paused
 743                                 if (sv.frametime)
 744                                         SV_Physics();
 745
 746                                 // if this server frame took too long, break out of the loop
 747                                 if (framelimit > 1 && Sys_DoubleTime() >= aborttime)
 748                                         break;
 749                         }
 750
 751                         // send all messages to the clients
 752                         SV_SendClientMessages();
 753
 754                         // end the server VM frame
 755                         SV_VM_End();
 756
 757                         // send an heartbeat if enough time has passed since the last one
 758                         NetConn_Heartbeat(0);
 759                 }
 760
 761         //-------------------
 762         //
 763         // client operations
 764         //
 765         //-------------------
 766
 767                 if (cls.state != ca_dedicated && (cl_timer > 0 || cls.timedemo))
 768                 {
 769                         // decide the simulation time
 770                         if (cls.capturevideo.active)
 771                         {
 772                                 if (cls.capturevideo.realtime)
 773                                         clframetime = cl.realframetime = max(cl_timer, 1.0 / cls.capturevideo.framerate);
 774                                 else
 775                                 {
 776                                         clframetime = 1.0 / cls.capturevideo.framerate;
 777                                         cl.realframetime = max(cl_timer, clframetime);
 778                                 }
 779                         }
 780                         else if (vid_activewindow)
 781                                 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxfps.value);
 782                         else
 783                                 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxidlefps.value);
 784
 785                         // apply slowmo scaling
 786                         clframetime *= cl.movevars_timescale;
 787                         // scale playback speed of demos by slowmo cvar
 788                         if (cls.demoplayback)
 789                         {
 790                                 clframetime *= slowmo.value;
 791                                 // if demo playback is paused, don't advance time at all
 792                                 if (cls.demopaused)
 793                                         clframetime = 0;
 794                         }
 795
 796                         // host_framerate overrides all else
 797                         if (host_framerate.value)
 798                                 clframetime = host_framerate.value;
 799
 800                         if (cls.timedemo)
 801                                 clframetime = cl.realframetime = cl_timer;
 802
 803                         // deduct the frame time from the accumulator
 804                         cl_timer -= cl.realframetime;
 805
 806                         cl.oldtime = cl.time;
 807                         cl.time += clframetime;
 808
 809                         // Collect input into cmd
 810                         CL_Input();
 811
 812                         // check for new packets
 813                         NetConn_ClientFrame();
 814
 815                         // read a new frame from a demo if needed
 816                         CL_ReadDemoMessage();
 817
 818                         // now that packets have been read, send input to server
 819                         CL_SendMove();
 820
 821                         // update client world (interpolate entities, create trails, etc)
 822                         CL_UpdateWorld();
 823
 824                         // update video
 825                         if (host_speeds.integer)
 826                                 time1 = Sys_DoubleTime();
 827
 828                         //ui_update();
 829
 830                         CL_VideoFrame();
 831
 832                         CL_UpdateScreen();
 833
 834                         if (host_speeds.integer)
 835                                 time2 = Sys_DoubleTime();
 836
 837                         // update audio
 838                         if(cl.csqc_usecsqclistener)
 839                         {
 840                                 S_Update(&cl.csqc_listenermatrix);
 841                                 cl.csqc_usecsqclistener = false;
 842                         }
 843                         else
 844                                 S_Update(&r_view.matrix);
 845
 846                         CDAudio_Update();
 847
 848                         if (host_speeds.integer)
 849                         {
 850                                 pass1 = (int)((time1 - time3)*1000000);
 851                                 time3 = Sys_DoubleTime();
 852                                 pass2 = (int)((time2 - time1)*1000000);
 853                                 pass3 = (int)((time3 - time2)*1000000);
 854                                 Con_Printf("%6ius total %6ius server %6ius gfx %6ius snd\n",
 855                                                         pass1+pass2+pass3, pass1, pass2, pass3);
 856                         }
 857                 }
 858
 859                 // if there is some time remaining from this frame, reset the timers
 860                 if (cl_timer >= 0)
 861                         cl_timer = 0;
 862                 if (sv_timer >= 0)
 863                 {
 864                         svs.perf_acc_lost += sv_timer;
 865                         sv_timer = 0;
 866                 }
 867
 868                 host_framecount++;
 869         }
 870 }
 871
 872 //============================================================================
 873
 874 qboolean vid_opened = false;
 875 void Host_StartVideo(void)
 876 {
 877         if (!vid_opened && cls.state != ca_dedicated)
 878         {
 879                 vid_opened = true;
 880                 VID_Start();
 881                 CDAudio_Startup();
 882         }
 883 }
 884
 885 char engineversion[128];
 886
 887 qboolean sys_nostdout = false;
 888
 889 extern void Render_Init(void);
 890 extern void Mathlib_Init(void);
 891 extern void FS_Init(void);
 892 extern void FS_Shutdown(void);
 893 extern void PR_Cmd_Init(void);
 894 extern void COM_Init_Commands(void);
 895 extern void FS_Init_Commands(void);
 896 extern qboolean host_stuffcmdsrun;
 897
 898 /*
 899 ====================
 900 Host_Init
 901 ====================
 902 */
 903 static void Host_Init (void)
 904 {
 905         int i;
 906         const char* os;
 907
 908         // LordHavoc: quake never seeded the random number generator before... heh
 909         if (COM_CheckParm("-benchmark"))
 910                 srand(0); // predictable random sequence for -benchmark
 911         else
 912                 srand(time(NULL));
 913
 914         // FIXME: this is evil, but possibly temporary
 915 // COMMANDLINEOPTION: Console: -developer enables warnings and other notices (RECOMMENDED for mod developers)
 916         if (COM_CheckParm("-developer"))
 917         {
 918                 developer.value = developer.integer = 100;
 919                 developer.string = "100";
 920         }
 921
 922         if (COM_CheckParm("-developer2"))
 923         {
 924                 developer.value = developer.integer = 100;
 925                 developer.string = "100";
 926                 developer_memory.value = developer_memory.integer = 100;
 927                 developer.string = "100";
 928                 developer_memorydebug.value = developer_memorydebug.integer = 100;
 929                 developer_memorydebug.string = "100";
 930         }
 931
 932 // COMMANDLINEOPTION: Console: -nostdout disables text output to the terminal the game was launched from
 933         if (COM_CheckParm("-nostdout"))
 934                 sys_nostdout = 1;
 935
 936         // used by everything
 937         Memory_Init();
 938
 939         // initialize console command/cvar/alias/command execution systems
 940         Cmd_Init();
 941
 942         // initialize memory subsystem cvars/commands
 943         Memory_Init_Commands();
 944
 945         // initialize console and logging and its cvars/commands
 946         Con_Init();
 947
 948         // initialize various cvars that could not be initialized earlier
 949         Curl_Init_Commands();
 950         Cmd_Init_Commands();
 951         Sys_Init_Commands();
 952         COM_Init_Commands();
 953         FS_Init_Commands();
 954
 955         // initialize console window (only used by sys_win.c)
 956         Sys_InitConsole();
 957
 958         // detect gamemode from commandline options or executable name
 959         COM_InitGameType();
 960
 961         // construct a version string for the corner of the console
 962 #if defined(__linux__)
 963         os = "Linux";
 964 #elif defined(WIN32)
 965         os = "Windows";
 966 #elif defined(__FreeBSD__)
 967         os = "FreeBSD";
 968 #elif defined(__NetBSD__)
 969         os = "NetBSD";
 970 #elif defined(__OpenBSD__)
 971         os = "OpenBSD";
 972 #elif defined(MACOSX)
 973         os = "Mac OS X";
 974 #elif defined(__MORPHOS__)
 975         os = "MorphOS";
 976 #else
 977         os = "Unknown";
 978 #endif
 979         dpsnprintf (engineversion, sizeof (engineversion), "%s %s %s", gamename, os, buildstring);
 980         Con_Printf("%s\n", engineversion);
 981
 982         // initialize ixtable
 983         Mathlib_Init();
 984
 985         // initialize filesystem (including fs_basedir, fs_gamedir, -game, scr_screenshot_name)
 986         FS_Init();
 987
 988         NetConn_Init();
 989         Curl_Init();
 990         //PR_Init();
 991         //PR_Cmd_Init();
 992         PRVM_Init();
 993         Mod_Init();
 994         World_Init();
 995         SV_Init();
 996         Host_InitCommands();
 997         Host_InitLocal();
 998         Host_ServerOptions();
 999
1000         if (cls.state != ca_dedicated)
1001         {
1002                 Con_Printf("Initializing client\n");
1003
1004                 R_Modules_Init();
1005                 Palette_Init();
1006                 MR_Init_Commands();
1007                 VID_Shared_Init();
1008                 VID_Init();
1009                 Render_Init();
1010                 S_Init();
1011                 CDAudio_Init();
1012                 Key_Init();
1013                 V_Init();
1014                 CL_Init();
1015         }
1016
1017         // set up the default startmap_sp and startmap_dm aliases (mods can
1018         // override these) and then execute the quake.rc startup script
1019         if (gamemode == GAME_NEHAHRA)
1020                 Cbuf_AddText("alias startmap_sp \"map nehstart\"\nalias startmap_dm \"map nehstart\"\nexec quake.rc\n");
1021         else if (gamemode == GAME_TRANSFUSION)
1022                 Cbuf_AddText("alias startmap_sp \"map e1m1\"\n""alias startmap_dm \"map bb1\"\nexec quake.rc\n");
1023         else if (gamemode == GAME_TEU)
1024                 Cbuf_AddText("alias startmap_sp \"map start\"\nalias startmap_dm \"map start\"\nexec teu.rc\n");
1025         else
1026                 Cbuf_AddText("alias startmap_sp \"map start\"\nalias startmap_dm \"map start\"\nexec quake.rc\n");
1027         Cbuf_Execute();
1028
1029         // if stuffcmds wasn't run, then quake.rc is probably missing, use default
1030         if (!host_stuffcmdsrun)
1031         {
1032                 Cbuf_AddText("exec default.cfg\nexec config.cfg\nexec autoexec.cfg\nstuffcmds\n");
1033                 Cbuf_Execute();
1034         }
1035
1036         // put up the loading image so the user doesn't stare at a black screen...
1037         SCR_BeginLoadingPlaque();
1038
1039         // FIXME: put this into some neat design, but the menu should be allowed to crash
1040         // without crashing the whole game, so this should just be a short-time solution
1041
1042         // here comes the not so critical stuff
1043         if (setjmp(host_abortframe)) {
1044                 return;
1045         }
1046
1047         if (cls.state != ca_dedicated)
1048         {
1049                 MR_Init();
1050         }
1051
1052         // check for special benchmark mode
1053 // 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)
1054         i = COM_CheckParm("-benchmark");
1055         if (i && i + 1 < com_argc)
1056         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1057         {
1058                 Cbuf_AddText(va("timedemo %s\n", com_argv[i + 1]));
1059                 Cbuf_Execute();
1060         }
1061
1062         // check for special demo mode
1063 // COMMANDLINEOPTION: Client: -demo <demoname> runs a playdemo and quits
1064         i = COM_CheckParm("-demo");
1065         if (i && i + 1 < com_argc)
1066         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1067         {
1068                 Cbuf_AddText(va("playdemo %s\n", com_argv[i + 1]));
1069                 Cbuf_Execute();
1070         }
1071
1072 // COMMANDLINEOPTION: Client: -capturedemo <demoname> captures a playdemo and quits
1073         i = COM_CheckParm("-capturedemo");
1074         if (i && i + 1 < com_argc)
1075         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1076         {
1077                 Cbuf_AddText(va("playdemo %s\ncl_capturevideo 1\n", com_argv[i + 1]));
1078                 Cbuf_Execute();
1079         }
1080
1081         if (cls.state == ca_dedicated || COM_CheckParm("-listen"))
1082         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1083         {
1084                 Cbuf_AddText("startmap_dm\n");
1085                 Cbuf_Execute();
1086         }
1087
1088         if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1089         {
1090                 if (gamemode == GAME_NEXUIZ)
1091                         Cbuf_AddText("togglemenu\nplayvideo logo\ncd loop 1\n");
1092                 else
1093                         Cbuf_AddText("togglemenu\n");
1094                 Cbuf_Execute();
1095         }
1096
1097         Con_DPrint("========Initialized=========\n");
1098
1099         //Host_StartVideo();
1100 }
1101
1102
1103 /*
1104 ===============
1105 Host_Shutdown
1106
1107 FIXME: this is a callback from Sys_Quit and Sys_Error.  It would be better
1108 to run quit through here before the final handoff to the sys code.
1109 ===============
1110 */
1111 void Host_Shutdown(void)
1112 {
1113         static qboolean isdown = false;
1114
1115         if (isdown)
1116         {
1117                 Con_Print("recursive shutdown\n");
1118                 return;
1119         }
1120         if (setjmp(host_abortframe))
1121         {
1122                 Con_Print("aborted the quitting frame?!?\n");
1123                 return;
1124         }
1125         isdown = true;
1126
1127         // be quiet while shutting down
1128         S_StopAllSounds();
1129
1130         // disconnect client from server if active
1131         CL_Disconnect();
1132
1133         // shut down local server if active
1134         Host_ShutdownServer ();
1135
1136         // Shutdown menu
1137         if(MR_Shutdown)
1138                 MR_Shutdown();
1139
1140         // AK shutdown PRVM
1141         // AK hmm, no PRVM_Shutdown(); yet
1142
1143         CL_Video_Shutdown();
1144
1145         Host_SaveConfig_f();
1146
1147         CDAudio_Shutdown ();
1148         S_Terminate ();
1149         Curl_Shutdown ();
1150         NetConn_Shutdown ();
1151         //PR_Shutdown ();
1152
1153         if (cls.state != ca_dedicated)
1154         {
1155                 R_Modules_Shutdown();
1156                 VID_Shutdown();
1157         }
1158
1159         Cmd_Shutdown();
1160         CL_Shutdown();
1161         Sys_Shutdown();
1162         Log_Close();
1163         FS_Shutdown();
1164         Memory_Shutdown();
1165 }
1166