2 Copyright (C) 1996-1997 Id Software, Inc.
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.
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.
13 See the GNU General Public License for more details.
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.
20 // host.c -- coordinates spawning and killing of local servers
36 A server can always be started, even if the system started out as a client
39 A client can NOT be started if the system started as a dedicated server.
41 Memory is cleared / released when a server or client begins, not when they end.
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;
51 // the real time since application started, without any slowmo or clamping
55 client_t *host_client;
57 jmp_buf host_abortframe;
58 double host_starttime = 0;
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 cvar_t cl_maxphysicsframesperserverframe = {0, "cl_maxphysicsframesperserverframe","10", "maximum number of physics frames per server frame"};
63 // shows time used by certain subsystems
64 cvar_t host_speeds = {0, "host_speeds","0", "reports how much time is used in server/graphics/sound"};
65 cvar_t host_maxwait = {0, "host_maxwait","1000", "maximum sleep time requested from the operating system in millisecond. Larger sleeps will be done using multiple host_maxwait length sleeps. Lowering this value will increase CPU load, but may help working around problems with accuracy of sleep times."};
66 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"};
67 cvar_t cl_minfps_fade = {CVAR_SAVE, "cl_minfps_fade", "0.2", "how fast the quality adapts to varying framerate"};
68 cvar_t cl_minfps_qualitymax = {CVAR_SAVE, "cl_minfps_qualitymax", "1", "highest allowed drawdistance multiplier"};
69 cvar_t cl_minfps_qualitymin = {CVAR_SAVE, "cl_minfps_qualitymin", "0.25", "lowest allowed drawdistance multiplier"};
70 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"};
71 cvar_t cl_minfps_qualityscale = {CVAR_SAVE, "cl_minfps_qualityscale", "0.5", "multiplier for quality"};
72 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)"};
73 cvar_t cl_maxfps_alwayssleep = {0, "cl_maxfps_alwayssleep","1", "gives up some processing time to other applications each frame, value in milliseconds, disabled if cl_maxfps is 0"};
74 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"};
76 cvar_t developer = {CVAR_SAVE, "developer","0", "shows debugging messages and information (recommended for all developers and level designers); the value -1 also suppresses buffering and logging these messages"};
77 cvar_t developer_extra = {0, "developer_extra", "0", "prints additional debugging messages, often very verbose!"};
78 cvar_t developer_insane = {0, "developer_insane", "0", "prints huge streams of information about internal workings, entire contents of files being read/written, etc. Not recommended!"};
79 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)"};
80 cvar_t developer_loading = {0, "developer_loading","0", "prints information about files as they are loaded or unloaded successfully"};
81 cvar_t developer_entityparsing = {0, "developer_entityparsing", "0", "prints detailed network entities information each time a packet is received"};
83 cvar_t timestamps = {CVAR_SAVE, "timestamps", "0", "prints timestamps on console messages"};
84 cvar_t timeformat = {CVAR_SAVE, "timeformat", "[%Y-%m-%d %H:%M:%S] ", "time format to use on timestamped console messages"};
88 Host_AbortCurrentFrame
90 aborts the current host frame and goes on with the next one
93 void Host_AbortCurrentFrame(void)
95 longjmp (host_abortframe, 1);
102 This shuts down both the client and server
105 void Host_Error (const char *error, ...)
107 static char hosterrorstring1[MAX_INPUTLINE];
108 static char hosterrorstring2[MAX_INPUTLINE];
109 static qboolean hosterror = false;
112 // turn off rcon redirect if it was active when the crash occurred
113 // to prevent loops when it is a networking problem
114 Con_Rcon_Redirect_Abort();
116 va_start (argptr,error);
117 dpvsnprintf (hosterrorstring1,sizeof(hosterrorstring1),error,argptr);
120 Con_Printf("Host_Error: %s\n", hosterrorstring1);
122 // LordHavoc: if crashing very early, or currently shutting down, do
124 if (host_framecount < 3 || host_shuttingdown)
125 Sys_Error ("Host_Error: %s", hosterrorstring1);
128 Sys_Error ("Host_Error: recursively entered (original error was: %s new error is: %s)", hosterrorstring2, hosterrorstring1);
131 strlcpy(hosterrorstring2, hosterrorstring1, sizeof(hosterrorstring2));
133 CL_Parse_DumpPacket();
135 CL_Parse_ErrorCleanUp();
139 // print out where the crash happened, if it was caused by QC (and do a cleanup)
143 Host_ShutdownServer ();
145 if (cls.state == ca_dedicated)
146 Sys_Error ("Host_Error: %s",hosterrorstring2); // dedicated servers exit
153 Host_AbortCurrentFrame();
156 void Host_ServerOptions (void)
163 // COMMANDLINEOPTION: Server: -dedicated [playerlimit] starts a dedicated server (with a command console), default playerlimit is 8
164 // COMMANDLINEOPTION: Server: -listen [playerlimit] starts a multiplayer server with graphical client, like singleplayer but other players can connect, default playerlimit is 8
165 // if no client is in the executable or -dedicated is specified on
166 // commandline, start a dedicated server
167 i = COM_CheckParm ("-dedicated");
168 if (i || !cl_available)
170 cls.state = ca_dedicated;
171 // check for -dedicated specifying how many players
172 if (i && i + 1 < com_argc && atoi (com_argv[i+1]) >= 1)
173 svs.maxclients = atoi (com_argv[i+1]);
174 if (COM_CheckParm ("-listen"))
175 Con_Printf ("Only one of -dedicated or -listen can be specified\n");
176 // default sv_public on for dedicated servers (often hosted by serious administrators), off for listen servers (often hosted by clueless users)
177 Cvar_SetValue("sv_public", 1);
179 else if (cl_available)
181 // client exists and not dedicated, check if -listen is specified
182 cls.state = ca_disconnected;
183 i = COM_CheckParm ("-listen");
186 // default players unless specified
187 if (i + 1 < com_argc && atoi (com_argv[i+1]) >= 1)
188 svs.maxclients = atoi (com_argv[i+1]);
192 // default players in some games, singleplayer in most
193 if (gamemode != GAME_GOODVSBAD2 && gamemode != GAME_NEXUIZ && gamemode != GAME_XONOTIC && gamemode != GAME_BATTLEMECH)
198 svs.maxclients = svs.maxclients_next = bound(1, svs.maxclients, MAX_SCOREBOARD);
200 svs.clients = (client_t *)Mem_Alloc(sv_mempool, sizeof(client_t) * svs.maxclients);
202 if (svs.maxclients > 1 && !deathmatch.integer && !coop.integer)
203 Cvar_SetValueQuick(&deathmatch, 1);
207 =======================
209 ======================
211 void Host_SaveConfig_f(void);
212 void Host_LoadConfig_f(void);
213 extern cvar_t sv_writepicture_quality;
214 extern cvar_t r_texture_jpeg_fastpicmip;
215 static void Host_InitLocal (void)
217 Cmd_AddCommand("saveconfig", Host_SaveConfig_f, "save settings to config.cfg (or a specified filename) immediately (also automatic when quitting)");
218 Cmd_AddCommand("loadconfig", Host_LoadConfig_f, "reset everything and reload configs");
220 Cvar_RegisterVariable (&cl_maxphysicsframesperserverframe);
221 Cvar_RegisterVariable (&host_framerate);
222 Cvar_RegisterVariable (&host_speeds);
223 Cvar_RegisterVariable (&host_maxwait);
224 Cvar_RegisterVariable (&cl_minfps);
225 Cvar_RegisterVariable (&cl_minfps_fade);
226 Cvar_RegisterVariable (&cl_minfps_qualitymax);
227 Cvar_RegisterVariable (&cl_minfps_qualitymin);
228 Cvar_RegisterVariable (&cl_minfps_qualitypower);
229 Cvar_RegisterVariable (&cl_minfps_qualityscale);
230 Cvar_RegisterVariable (&cl_maxfps);
231 Cvar_RegisterVariable (&cl_maxfps_alwayssleep);
232 Cvar_RegisterVariable (&cl_maxidlefps);
234 Cvar_RegisterVariable (&developer);
235 Cvar_RegisterVariable (&developer_extra);
236 Cvar_RegisterVariable (&developer_insane);
237 Cvar_RegisterVariable (&developer_loadfile);
238 Cvar_RegisterVariable (&developer_loading);
239 Cvar_RegisterVariable (&developer_entityparsing);
241 Cvar_RegisterVariable (×tamps);
242 Cvar_RegisterVariable (&timeformat);
244 Cvar_RegisterVariable (&sv_writepicture_quality);
245 Cvar_RegisterVariable (&r_texture_jpeg_fastpicmip);
253 Writes key bindings and archived cvars to config.cfg
256 void Host_SaveConfig_to(const char *file)
260 // dedicated servers initialize the host but don't parse and set the
262 // LordHavoc: don't save a config if it crashed in startup
263 if (host_framecount >= 3 && cls.state != ca_dedicated && !COM_CheckParm("-benchmark") && !COM_CheckParm("-capturedemo"))
265 f = FS_OpenRealFile(file, "wb", false);
268 Con_Printf("Couldn't write %s.\n", file);
272 Key_WriteBindings (f);
273 Cvar_WriteVariables (f);
278 void Host_SaveConfig(void)
280 Host_SaveConfig_to(CONFIGFILENAME);
282 void Host_SaveConfig_f(void)
284 const char *file = CONFIGFILENAME;
286 if(Cmd_Argc() >= 2) {
288 Con_Printf("Saving to %s\n", file);
291 Host_SaveConfig_to(file);
294 void Host_AddConfigText(void)
296 // set up the default startmap_sp and startmap_dm aliases (mods can
297 // override these) and then execute the quake.rc startup script
298 if (gamemode == GAME_NEHAHRA)
299 Cbuf_InsertText("alias startmap_sp \"map nehstart\"\nalias startmap_dm \"map nehstart\"\nexec " STARTCONFIGFILENAME "\n");
300 else if (gamemode == GAME_TRANSFUSION)
301 Cbuf_InsertText("alias startmap_sp \"map e1m1\"\n""alias startmap_dm \"map bb1\"\nexec " STARTCONFIGFILENAME "\n");
302 else if (gamemode == GAME_TEU)
303 Cbuf_InsertText("alias startmap_sp \"map start\"\nalias startmap_dm \"map start\"\nexec teu.rc\n");
305 Cbuf_InsertText("alias startmap_sp \"map start\"\nalias startmap_dm \"map start\"\nexec " STARTCONFIGFILENAME "\n");
312 Resets key bindings and cvars to defaults and then reloads scripts
315 void Host_LoadConfig_f(void)
317 // reset all cvars, commands and aliases to init values
318 Cmd_RestoreInitState();
319 // prepend a menu restart command to execute after the config
320 Cbuf_InsertText("\nmenu_restart\n");
321 // reset cvars to their defaults, and then exec startup scripts again
322 Host_AddConfigText();
329 Sends text across to be displayed
330 FIXME: make this just a stuffed echo?
333 void SV_ClientPrint(const char *msg)
335 if (host_client->netconnection)
337 MSG_WriteByte(&host_client->netconnection->message, svc_print);
338 MSG_WriteString(&host_client->netconnection->message, msg);
346 Sends text across to be displayed
347 FIXME: make this just a stuffed echo?
350 void SV_ClientPrintf(const char *fmt, ...)
353 char msg[MAX_INPUTLINE];
355 va_start(argptr,fmt);
356 dpvsnprintf(msg,sizeof(msg),fmt,argptr);
366 Sends text to all active clients
369 void SV_BroadcastPrint(const char *msg)
374 for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
376 if (client->active && client->netconnection)
378 MSG_WriteByte(&client->netconnection->message, svc_print);
379 MSG_WriteString(&client->netconnection->message, msg);
383 if (sv_echobprint.integer && cls.state == ca_dedicated)
391 Sends text to all active clients
394 void SV_BroadcastPrintf(const char *fmt, ...)
397 char msg[MAX_INPUTLINE];
399 va_start(argptr,fmt);
400 dpvsnprintf(msg,sizeof(msg),fmt,argptr);
403 SV_BroadcastPrint(msg);
410 Send text over to the client to be executed
413 void Host_ClientCommands(const char *fmt, ...)
416 char string[MAX_INPUTLINE];
418 if (!host_client->netconnection)
421 va_start(argptr,fmt);
422 dpvsnprintf(string, sizeof(string), fmt, argptr);
425 MSG_WriteByte(&host_client->netconnection->message, svc_stufftext);
426 MSG_WriteString(&host_client->netconnection->message, string);
430 =====================
433 Called when the player is getting totally kicked off the host
434 if (crash = true), don't bother sending signofs
435 =====================
437 void SV_DropClient(qboolean crash)
440 Con_Printf("Client \"%s\" dropped\n", host_client->name);
442 SV_StopDemoRecording(host_client);
444 // make sure edict is not corrupt (from a level change for example)
445 host_client->edict = PRVM_EDICT_NUM(host_client - svs.clients + 1);
447 if (host_client->netconnection)
449 // tell the client to be gone
452 // LordHavoc: no opportunity for resending, so use unreliable 3 times
453 unsigned char bufdata[8];
455 memset(&buf, 0, sizeof(buf));
457 buf.maxsize = sizeof(bufdata);
458 MSG_WriteByte(&buf, svc_disconnect);
459 NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, false);
460 NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, false);
461 NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, false);
465 // call qc ClientDisconnect function
466 // LordHavoc: don't call QC if server is dead (avoids recursive
467 // Host_Error in some mods when they run out of edicts)
468 if (host_client->clientconnectcalled && sv.active && host_client->edict)
470 // call the prog function for removing a client
471 // this will set the body to a dead frame, among other things
472 int saveSelf = PRVM_serverglobaledict(self);
473 host_client->clientconnectcalled = false;
474 PRVM_serverglobaledict(self) = PRVM_EDICT_TO_PROG(host_client->edict);
475 PRVM_ExecuteProgram(PRVM_serverfunction(ClientDisconnect), "QC function ClientDisconnect is missing");
476 PRVM_serverglobaledict(self) = saveSelf;
479 if (host_client->netconnection)
481 // break the net connection
482 NetConn_Close(host_client->netconnection);
483 host_client->netconnection = NULL;
486 // if a download is active, close it
487 if (host_client->download_file)
489 Con_DPrintf("Download of %s aborted when %s dropped\n", host_client->download_name, host_client->name);
490 FS_Close(host_client->download_file);
491 host_client->download_file = NULL;
492 host_client->download_name[0] = 0;
493 host_client->download_expectedposition = 0;
494 host_client->download_started = false;
497 // remove leaving player from scoreboard
498 host_client->name[0] = 0;
499 host_client->colors = 0;
500 host_client->frags = 0;
501 // send notification to all clients
502 // get number of client manually just to make sure we get it right...
503 i = host_client - svs.clients;
504 MSG_WriteByte (&sv.reliable_datagram, svc_updatename);
505 MSG_WriteByte (&sv.reliable_datagram, i);
506 MSG_WriteString (&sv.reliable_datagram, host_client->name);
507 MSG_WriteByte (&sv.reliable_datagram, svc_updatecolors);
508 MSG_WriteByte (&sv.reliable_datagram, i);
509 MSG_WriteByte (&sv.reliable_datagram, host_client->colors);
510 MSG_WriteByte (&sv.reliable_datagram, svc_updatefrags);
511 MSG_WriteByte (&sv.reliable_datagram, i);
512 MSG_WriteShort (&sv.reliable_datagram, host_client->frags);
514 // free the client now
515 if (host_client->entitydatabase)
516 EntityFrame_FreeDatabase(host_client->entitydatabase);
517 if (host_client->entitydatabase4)
518 EntityFrame4_FreeDatabase(host_client->entitydatabase4);
519 if (host_client->entitydatabase5)
520 EntityFrame5_FreeDatabase(host_client->entitydatabase5);
524 // clear a fields that matter to DP_SV_CLIENTNAME and DP_SV_CLIENTCOLORS, and also frags
525 PRVM_ED_ClearEdict(host_client->edict);
528 // clear the client struct (this sets active to false)
529 memset(host_client, 0, sizeof(*host_client));
531 // update server listing on the master because player count changed
532 // (which the master uses for filtering empty/full servers)
533 NetConn_Heartbeat(1);
537 for (i = 0;i < svs.maxclients;i++)
538 if (svs.clients[i].active && !svs.clients[i].spawned)
540 if (i == svs.maxclients)
542 Con_Printf("Loaded game, everyone rejoined - unpausing\n");
543 sv.paused = sv.loadgame = false; // we're basically done with loading now
552 This only happens at the end of a game, not between levels
555 void Host_ShutdownServer(void)
559 Con_DPrintf("Host_ShutdownServer\n");
564 NetConn_Heartbeat(2);
565 NetConn_Heartbeat(2);
567 // make sure all the clients know we're disconnecting
569 World_End(&sv.world);
571 if(PRVM_serverfunction(SV_Shutdown))
573 func_t s = PRVM_serverfunction(SV_Shutdown);
574 PRVM_serverfunction(SV_Shutdown) = 0; // prevent it from getting called again
575 PRVM_ExecuteProgram(s,"SV_Shutdown() required");
577 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
578 if (host_client->active)
579 SV_DropClient(false); // server shutdown
582 NetConn_CloseServerPorts();
588 memset(&sv, 0, sizeof(sv));
589 memset(svs.clients, 0, svs.maxclients*sizeof(client_t));
593 //============================================================================
597 Host_GetConsoleCommands
599 Add them exactly as if they had been typed at the console
602 void Host_GetConsoleCommands (void)
608 cmd = Sys_ConsoleInput ();
619 Returns a time report string, for example for
622 const char *Host_TimingReport(void)
624 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);
627 void Host_Mingled(void)
632 double cl_timer = 0, sv_timer = 0;
633 double clframetime, deltarealtime, oldrealtime;
635 int pass1, pass2, pass3, i;
639 if (setjmp(host_abortframe))
641 SCR_ClearLoadingScreen(false);
642 continue; // something bad happened, or the server disconnected
645 oldrealtime = realtime;
646 realtime = Sys_DoubleTime();
648 deltarealtime = realtime - oldrealtime;
649 cl_timer += deltarealtime;
650 sv_timer += deltarealtime;
652 svs.perf_acc_realtime += deltarealtime;
654 // Look for clients who have spawned
655 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
656 if(host_client->spawned)
657 if(host_client->netconnection)
659 if(i == svs.maxclients)
661 // Nobody is looking? Then we won't do timing...
662 // Instead, reset it to zero
663 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;
665 else if(svs.perf_acc_realtime > 5)
667 svs.perf_cpuload = 1 - svs.perf_acc_sleeptime / svs.perf_acc_realtime;
668 svs.perf_lost = svs.perf_acc_lost / svs.perf_acc_realtime;
669 if(svs.perf_acc_offset_samples > 0)
671 svs.perf_offset_max = svs.perf_acc_offset_max;
672 svs.perf_offset_avg = svs.perf_acc_offset / svs.perf_acc_offset_samples;
673 svs.perf_offset_sdev = sqrt(svs.perf_acc_offset_squared / svs.perf_acc_offset_samples - svs.perf_offset_avg * svs.perf_offset_avg);
675 if(svs.perf_lost > 0 && developer_extra.integer)
676 Con_DPrintf("Server can't keep up: %s\n", Host_TimingReport());
677 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;
680 if (slowmo.value < 0.00001 && slowmo.value != 0)
681 Cvar_SetValue("slowmo", 0);
682 if (host_framerate.value < 0.00001 && host_framerate.value != 0)
683 Cvar_SetValue("host_framerate", 0);
685 // keep the random time dependent, but not when playing demos/benchmarking
686 if(!*sv_random_seed.string && !cls.demoplayback)
689 cl.islocalgame = NetConn_IsLocalGame();
691 // get new key events
692 Key_EventQueue_Unblock();
693 SndSys_SendKeyEvents();
696 NetConn_UpdateSockets();
698 Log_DestBuffer_Flush();
700 // receive packets on each main loop iteration, as the main loop may
701 // be undersleeping due to select() detecting a new packet
703 NetConn_ServerFrame();
707 // check for commands typed to the host
708 Host_GetConsoleCommands();
710 // when a server is running we only execute console commands on server frames
711 // (this mainly allows frikbot .way config files to work properly by staying in sync with the server qc)
712 // otherwise we execute them on client frames
713 if (sv.active ? sv_timer > 0 : cl_timer > 0)
715 // process console commands
716 // R_TimeReport("preconsole");
717 CL_VM_PreventInformationLeaks();
719 // R_TimeReport("console");
722 //Con_Printf("%6.0f %6.0f\n", cl_timer * 1000000.0, sv_timer * 1000000.0);
724 // if the accumulators haven't become positive yet, wait a while
725 if (cls.state == ca_dedicated)
726 wait = sv_timer * -1000000.0;
728 wait = cl_timer * -1000000.0;
730 wait = max(cl_timer, sv_timer) * -1000000.0;
732 if (!cls.timedemo && wait >= 1)
736 if(host_maxwait.value <= 0)
737 wait = min(wait, 1000000.0);
739 wait = min(wait, host_maxwait.value * 1000.0);
741 wait = 1; // because we cast to int
743 time0 = Sys_DoubleTime();
744 if (sv_checkforpacketsduringsleep.integer && !sys_usenoclockbutbenchmark.integer)
745 NetConn_SleepMicroseconds((int)wait);
747 Sys_Sleep((int)wait);
748 svs.perf_acc_sleeptime += Sys_DoubleTime() - time0;
749 // R_TimeReport("sleep");
753 // limit the frametime steps to no more than 100ms each
759 //-------------------
763 //-------------------
765 // limit the frametime steps to no more than 100ms each
768 svs.perf_acc_lost += (sv_timer - 0.1);
772 if (sv.active && sv_timer > 0)
774 // execute one or more server frames, with an upper limit on how much
775 // execution time to spend on server frames to avoid freezing the game if
776 // the server is overloaded, this execution time limit means the game will
777 // slow down if the server is taking too long.
778 int framecount, framelimit = 1;
779 double advancetime, aborttime = 0;
782 if (cls.state == ca_dedicated)
783 Collision_Cache_NewFrame();
785 // run the world state
786 // don't allow simulation to run too fast or too slow or logic glitches can occur
788 // stop running server frames if the wall time reaches this value
789 if (sys_ticrate.value <= 0)
790 advancetime = sv_timer;
791 else if (cl.islocalgame && !sv_fixedframeratesingleplayer.integer)
793 // synchronize to the client frametime, but no less than 10ms and no more than sys_ticrate
794 advancetime = bound(0.01, cl_timer, sys_ticrate.value);
795 framelimit = cl_maxphysicsframesperserverframe.integer;
796 aborttime = realtime + 0.1;
800 advancetime = sys_ticrate.value;
801 // listen servers can run multiple server frames per client frame
802 if (cls.state == ca_connected)
804 framelimit = cl_maxphysicsframesperserverframe.integer;
805 aborttime = realtime + 0.1;
808 if(slowmo.value > 0 && slowmo.value < 1)
809 advancetime = min(advancetime, 0.1 / slowmo.value);
811 advancetime = min(advancetime, 0.1);
815 offset = sv_timer + (Sys_DoubleTime() - realtime);
816 ++svs.perf_acc_offset_samples;
817 svs.perf_acc_offset += offset;
818 svs.perf_acc_offset_squared += offset * offset;
819 if(svs.perf_acc_offset_max < offset)
820 svs.perf_acc_offset_max = offset;
823 // only advance time if not paused
824 // the game also pauses in singleplayer when menu or console is used
825 sv.frametime = advancetime * slowmo.value;
826 if (host_framerate.value)
827 sv.frametime = host_framerate.value;
828 if (sv.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive || cl.csqc_paused)))
831 // setup the VM frame
834 for (framecount = 0;framecount < framelimit && sv_timer > 0;framecount++)
836 sv_timer -= advancetime;
838 // move things around and think unless paused
842 // if this server frame took too long, break out of the loop
843 if (framelimit > 1 && Sys_DoubleTime() >= aborttime)
846 R_TimeReport("serverphysics");
848 // send all messages to the clients
849 SV_SendClientMessages();
851 if (sv.paused == 1 && realtime > sv.pausedstart && sv.pausedstart > 0) {
852 prog->globals.generic[OFS_PARM0] = realtime - sv.pausedstart;
853 PRVM_ExecuteProgram(PRVM_serverfunction(SV_PausedTic), "QC function SV_PausedTic is missing");
856 // end the server VM frame
859 // send an heartbeat if enough time has passed since the last one
860 NetConn_Heartbeat(0);
861 R_TimeReport("servernetwork");
865 // don't let r_speeds display jump around
866 R_TimeReport("serverphysics");
867 R_TimeReport("servernetwork");
870 //-------------------
874 //-------------------
876 if (cls.state != ca_dedicated && (cl_timer > 0 || cls.timedemo || ((vid_activewindow ? cl_maxfps : cl_maxidlefps).value < 1)))
879 Collision_Cache_NewFrame();
880 R_TimeReport("collisioncache");
881 // decide the simulation time
882 if (cls.capturevideo.active)
885 if (cls.capturevideo.realtime)
886 clframetime = cl.realframetime = max(cl_timer, 1.0 / cls.capturevideo.framerate);
889 clframetime = 1.0 / cls.capturevideo.framerate;
890 cl.realframetime = max(cl_timer, clframetime);
893 else if (vid_activewindow && cl_maxfps.value >= 1 && !cls.timedemo)
895 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxfps.value);
896 // when running slow, we need to sleep to keep input responsive
897 wait = bound(0, cl_maxfps_alwayssleep.value * 1000, 100000);
899 Sys_Sleep((int)wait);
901 else if (!vid_activewindow && cl_maxidlefps.value >= 1 && !cls.timedemo)
902 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxidlefps.value);
904 clframetime = cl.realframetime = cl_timer;
906 // apply slowmo scaling
907 clframetime *= cl.movevars_timescale;
908 // scale playback speed of demos by slowmo cvar
909 if (cls.demoplayback)
911 clframetime *= slowmo.value;
912 // if demo playback is paused, don't advance time at all
917 // host_framerate overrides all else
918 if (host_framerate.value)
919 clframetime = host_framerate.value;
921 if (cl.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive || cl.csqc_paused)))
925 clframetime = cl.realframetime = cl_timer;
927 // deduct the frame time from the accumulator
928 cl_timer -= cl.realframetime;
930 cl.oldtime = cl.time;
931 cl.time += clframetime;
934 if (host_speeds.integer)
935 time1 = Sys_DoubleTime();
936 R_TimeReport("pre-input");
938 // Collect input into cmd
941 R_TimeReport("input");
943 // check for new packets
944 NetConn_ClientFrame();
946 // read a new frame from a demo if needed
947 CL_ReadDemoMessage();
948 R_TimeReport("clientnetwork");
950 // now that packets have been read, send input to server
952 R_TimeReport("sendmove");
954 // update client world (interpolate entities, create trails, etc)
956 R_TimeReport("lerpworld");
960 R_TimeReport("client");
963 R_TimeReport("render");
965 if (host_speeds.integer)
966 time2 = Sys_DoubleTime();
969 if(cl.csqc_usecsqclistener)
971 S_Update(&cl.csqc_listenermatrix);
972 cl.csqc_usecsqclistener = false;
975 S_Update(&r_refdef.view.matrix);
978 R_TimeReport("audio");
980 // reset gathering of mouse input
981 in_mouse_x = in_mouse_y = 0;
983 if (host_speeds.integer)
985 pass1 = (int)((time1 - time3)*1000000);
986 time3 = Sys_DoubleTime();
987 pass2 = (int)((time2 - time1)*1000000);
988 pass3 = (int)((time3 - time2)*1000000);
989 Con_Printf("%6ius total %6ius server %6ius gfx %6ius snd\n",
990 pass1+pass2+pass3, pass1, pass2, pass3);
995 Mem_CheckSentinelsGlobal();
997 if (developer_memorydebug.integer)
998 Mem_CheckSentinelsGlobal();
1001 // if there is some time remaining from this frame, reset the timers
1006 svs.perf_acc_lost += sv_timer;
1014 void Host_Threaded(void)
1019 double cl_timer = 0;
1020 double clframetime, deltarealtime, oldrealtime;
1022 int pass1, pass2, pass3;
1026 if (setjmp(host_abortframe))
1028 SCR_ClearLoadingScreen(false);
1029 continue; // something bad happened, or the server disconnected
1032 oldrealtime = realtime;
1033 realtime = Sys_DoubleTime();
1035 deltarealtime = realtime - oldrealtime;
1036 cl_timer += deltarealtime;
1038 if (slowmo.value < 0.00001 && slowmo.value != 0)
1039 Cvar_SetValue("slowmo", 0);
1040 if (host_framerate.value < 0.00001 && host_framerate.value != 0)
1041 Cvar_SetValue("host_framerate", 0);
1043 // keep the random time dependent, but not when playing demos/benchmarking
1044 if(!*sv_random_seed.string && !cls.demoplayback)
1047 cl.islocalgame = NetConn_IsLocalGame();
1049 // get new key events
1050 Key_EventQueue_Unblock();
1051 SndSys_SendKeyEvents();
1052 Sys_SendKeyEvents();
1054 NetConn_UpdateSockets();
1056 Log_DestBuffer_Flush();
1060 // check for commands typed to the host
1061 Host_GetConsoleCommands();
1063 // process console commands
1064 // R_TimeReport("preconsole");
1065 CL_VM_PreventInformationLeaks();
1067 // R_TimeReport("console");
1069 //Con_Printf("%6.0f %6.0f\n", cl_timer * 1000000.0, sv_timer * 1000000.0);
1071 // if the accumulators haven't become positive yet, wait a while
1072 wait = cl_timer * -1000000.0;
1074 if (!cls.timedemo && wait >= 1)
1078 if(host_maxwait.value <= 0)
1079 wait = min(wait, 1000000.0);
1081 wait = min(wait, host_maxwait.value * 1000.0);
1083 wait = 1; // because we cast to int
1085 time0 = Sys_DoubleTime();
1086 Sys_Sleep((int)wait);
1087 // R_TimeReport("sleep");
1091 // limit the frametime steps to no more than 100ms each
1095 R_TimeReport("---");
1097 if (cl_timer > 0 || cls.timedemo || ((vid_activewindow ? cl_maxfps : cl_maxidlefps).value < 1))
1099 R_TimeReport("---");
1100 Collision_Cache_NewFrame();
1101 R_TimeReport("collisioncache");
1102 // decide the simulation time
1103 if (cls.capturevideo.active)
1106 if (cls.capturevideo.realtime)
1107 clframetime = cl.realframetime = max(cl_timer, 1.0 / cls.capturevideo.framerate);
1110 clframetime = 1.0 / cls.capturevideo.framerate;
1111 cl.realframetime = max(cl_timer, clframetime);
1114 else if (vid_activewindow && cl_maxfps.value >= 1 && !cls.timedemo)
1116 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxfps.value);
1117 // when running slow, we need to sleep to keep input responsive
1118 wait = bound(0, cl_maxfps_alwayssleep.value * 1000, 100000);
1120 Sys_Sleep((int)wait);
1122 else if (!vid_activewindow && cl_maxidlefps.value >= 1 && !cls.timedemo)
1123 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxidlefps.value);
1125 clframetime = cl.realframetime = cl_timer;
1127 // apply slowmo scaling
1128 clframetime *= cl.movevars_timescale;
1129 // scale playback speed of demos by slowmo cvar
1130 if (cls.demoplayback)
1132 clframetime *= slowmo.value;
1133 // if demo playback is paused, don't advance time at all
1138 // host_framerate overrides all else
1139 if (host_framerate.value)
1140 clframetime = host_framerate.value;
1142 if (cl.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive || cl.csqc_paused)))
1146 clframetime = cl.realframetime = cl_timer;
1148 // deduct the frame time from the accumulator
1149 cl_timer -= cl.realframetime;
1151 cl.oldtime = cl.time;
1152 cl.time += clframetime;
1155 if (host_speeds.integer)
1156 time1 = Sys_DoubleTime();
1157 R_TimeReport("pre-input");
1159 // Collect input into cmd
1162 R_TimeReport("input");
1164 // check for new packets
1165 NetConn_ClientFrame();
1167 // read a new frame from a demo if needed
1168 CL_ReadDemoMessage();
1169 R_TimeReport("clientnetwork");
1171 // now that packets have been read, send input to server
1173 R_TimeReport("sendmove");
1175 // update client world (interpolate entities, create trails, etc)
1177 R_TimeReport("lerpworld");
1181 R_TimeReport("client");
1184 R_TimeReport("render");
1186 if (host_speeds.integer)
1187 time2 = Sys_DoubleTime();
1190 if(cl.csqc_usecsqclistener)
1192 S_Update(&cl.csqc_listenermatrix);
1193 cl.csqc_usecsqclistener = false;
1196 S_Update(&r_refdef.view.matrix);
1199 R_TimeReport("audio");
1201 // reset gathering of mouse input
1202 in_mouse_x = in_mouse_y = 0;
1204 if (host_speeds.integer)
1206 pass1 = (int)((time1 - time3)*1000000);
1207 time3 = Sys_DoubleTime();
1208 pass2 = (int)((time2 - time1)*1000000);
1209 pass3 = (int)((time3 - time2)*1000000);
1210 Con_Printf("%6ius total %6ius other %6ius gfx %6ius snd\n",
1211 pass1+pass2+pass3, pass1, pass2, pass3);
1216 Mem_CheckSentinelsGlobal();
1218 if (developer_memorydebug.integer)
1219 Mem_CheckSentinelsGlobal();
1222 // if there is some time remaining from this frame, reset the timers
1234 Runs all active servers
1237 static void Host_Init(void);
1238 void Host_Main(void)
1242 realtime = host_starttime = Sys_DoubleTime();
1250 //============================================================================
1252 qboolean vid_opened = false;
1253 void Host_StartVideo(void)
1255 if (!vid_opened && cls.state != ca_dedicated)
1258 // make sure we open sockets before opening video because the Windows Firewall "unblock?" dialog can screw up the graphics context on some graphics drivers
1259 NetConn_UpdateSockets();
1265 char engineversion[128];
1267 qboolean sys_nostdout = false;
1269 extern void u8_Init(void);
1270 extern void Render_Init(void);
1271 extern void Mathlib_Init(void);
1272 extern void FS_Init_SelfPack(void);
1273 extern void FS_Init(void);
1274 extern void FS_Shutdown(void);
1275 extern void PR_Cmd_Init(void);
1276 extern void COM_Init_Commands(void);
1277 extern void FS_Init_Commands(void);
1278 extern qboolean host_stuffcmdsrun;
1281 ====================
1283 ====================
1285 static void Host_Init (void)
1290 if (COM_CheckParm("-profilegameonly"))
1291 Sys_AllowProfiling(false);
1293 // LordHavoc: quake never seeded the random number generator before... heh
1294 if (COM_CheckParm("-benchmark"))
1295 srand(0); // predictable random sequence for -benchmark
1297 srand((unsigned int)time(NULL));
1299 // FIXME: this is evil, but possibly temporary
1300 // LordHavoc: doesn't seem very temporary...
1301 // LordHavoc: made this a saved cvar
1302 // COMMANDLINEOPTION: Console: -developer enables warnings and other notices (RECOMMENDED for mod developers)
1303 if (COM_CheckParm("-developer"))
1305 developer.value = developer.integer = 1;
1306 developer.string = "1";
1309 if (COM_CheckParm("-developer2") || COM_CheckParm("-developer3"))
1311 developer.value = developer.integer = 1;
1312 developer.string = "1";
1313 developer_extra.value = developer_extra.integer = 1;
1314 developer_extra.string = "1";
1315 developer_insane.value = developer_insane.integer = 1;
1316 developer_insane.string = "1";
1317 developer_memory.value = developer_memory.integer = 1;
1318 developer_memory.string = "1";
1319 developer_memorydebug.value = developer_memorydebug.integer = 1;
1320 developer_memorydebug.string = "1";
1323 if (COM_CheckParm("-developer3"))
1325 gl_paranoid.integer = 1;gl_paranoid.string = "1";
1326 gl_printcheckerror.integer = 1;gl_printcheckerror.string = "1";
1329 // COMMANDLINEOPTION: Console: -nostdout disables text output to the terminal the game was launched from
1330 if (COM_CheckParm("-nostdout"))
1333 // used by everything
1336 // initialize console command/cvar/alias/command execution systems
1339 // initialize memory subsystem cvars/commands
1340 Memory_Init_Commands();
1342 // initialize console and logging and its cvars/commands
1345 // initialize various cvars that could not be initialized earlier
1347 Curl_Init_Commands();
1348 Cmd_Init_Commands();
1349 Sys_Init_Commands();
1350 COM_Init_Commands();
1353 // initialize console window (only used by sys_win.c)
1356 // initialize the self-pack (must be before COM_InitGameType as it may add command line options)
1359 // detect gamemode from commandline options or executable name
1362 // construct a version string for the corner of the console
1364 dpsnprintf (engineversion, sizeof (engineversion), "%s %s %s", gamename, os, buildstring);
1365 Con_Printf("%s\n", engineversion);
1367 // initialize ixtable
1370 // initialize filesystem (including fs_basedir, fs_gamedir, -game, scr_screenshot_name)
1373 // must be after FS_Init
1375 Crypto_Init_Commands();
1385 V_Init(); // some cvars needed by server player physics (cl_rollangle etc)
1386 Host_InitCommands();
1388 Host_ServerOptions();
1392 if (cls.state == ca_dedicated)
1393 Cmd_AddCommand ("disconnect", CL_Disconnect_f, "disconnect from server (or disconnect all clients if running a server)");
1396 Con_DPrintf("Initializing client\n");
1410 // save off current state of aliases, commands and cvars for later restore if FS_GameDir_f is called
1411 // NOTE: menu commands are freed by Cmd_RestoreInitState
1412 Cmd_SaveInitState();
1414 // FIXME: put this into some neat design, but the menu should be allowed to crash
1415 // without crashing the whole game, so this should just be a short-time solution
1417 // here comes the not so critical stuff
1418 if (setjmp(host_abortframe)) {
1422 Host_AddConfigText();
1425 // if stuffcmds wasn't run, then quake.rc is probably missing, use default
1426 if (!host_stuffcmdsrun)
1428 Cbuf_AddText("exec default.cfg\nexec " CONFIGFILENAME "\nexec autoexec.cfg\nstuffcmds\n");
1432 // put up the loading image so the user doesn't stare at a black screen...
1433 SCR_BeginLoadingPlaque();
1435 if (cls.state != ca_dedicated)
1440 // check for special benchmark mode
1441 // 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)
1442 i = COM_CheckParm("-benchmark");
1443 if (i && i + 1 < com_argc)
1444 if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1446 Cbuf_AddText(va("timedemo %s\n", com_argv[i + 1]));
1450 // check for special demo mode
1451 // COMMANDLINEOPTION: Client: -demo <demoname> runs a playdemo and quits
1452 i = COM_CheckParm("-demo");
1453 if (i && i + 1 < com_argc)
1454 if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1456 Cbuf_AddText(va("playdemo %s\n", com_argv[i + 1]));
1460 // COMMANDLINEOPTION: Client: -capturedemo <demoname> captures a playdemo and quits
1461 i = COM_CheckParm("-capturedemo");
1462 if (i && i + 1 < com_argc)
1463 if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1465 Cbuf_AddText(va("playdemo %s\ncl_capturevideo 1\n", com_argv[i + 1]));
1469 if (cls.state == ca_dedicated || COM_CheckParm("-listen"))
1470 if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1472 Cbuf_AddText("startmap_dm\n");
1476 if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1478 Cbuf_AddText("togglemenu\n");
1482 Con_DPrint("========Initialized=========\n");
1484 //Host_StartVideo();
1486 if (cls.state != ca_dedicated)
1495 FIXME: this is a callback from Sys_Quit and Sys_Error. It would be better
1496 to run quit through here before the final handoff to the sys code.
1499 void Host_Shutdown(void)
1501 static qboolean isdown = false;
1505 Con_Print("recursive shutdown\n");
1508 if (setjmp(host_abortframe))
1510 Con_Print("aborted the quitting frame?!?\n");
1515 // be quiet while shutting down
1518 // disconnect client from server if active
1521 // shut down local server if active
1522 Host_ShutdownServer ();
1529 // AK hmm, no PRVM_Shutdown(); yet
1531 CL_Video_Shutdown();
1535 CDAudio_Shutdown ();
1538 NetConn_Shutdown ();
1541 if (cls.state != ca_dedicated)
1543 R_Modules_Shutdown();