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 // in case we were previously nice, make us mean again
96 Sys_MakeProcessMean();
98 longjmp (host_abortframe, 1);
105 This shuts down both the client and server
108 void Host_Error (const char *error, ...)
110 static char hosterrorstring1[MAX_INPUTLINE];
111 static char hosterrorstring2[MAX_INPUTLINE];
112 static qboolean hosterror = false;
115 // turn off rcon redirect if it was active when the crash occurred
116 // to prevent loops when it is a networking problem
117 Con_Rcon_Redirect_Abort();
119 va_start (argptr,error);
120 dpvsnprintf (hosterrorstring1,sizeof(hosterrorstring1),error,argptr);
123 Con_Printf("Host_Error: %s\n", hosterrorstring1);
125 // LordHavoc: if crashing very early, or currently shutting down, do
127 if (host_framecount < 3 || host_shuttingdown)
128 Sys_Error ("Host_Error: %s", hosterrorstring1);
131 Sys_Error ("Host_Error: recursively entered (original error was: %s new error is: %s)", hosterrorstring2, hosterrorstring1);
134 strlcpy(hosterrorstring2, hosterrorstring1, sizeof(hosterrorstring2));
136 CL_Parse_DumpPacket();
138 CL_Parse_ErrorCleanUp();
142 // print out where the crash happened, if it was caused by QC (and do a cleanup)
146 Host_ShutdownServer ();
148 if (cls.state == ca_dedicated)
149 Sys_Error ("Host_Error: %s",hosterrorstring2); // dedicated servers exit
156 Host_AbortCurrentFrame();
159 void Host_ServerOptions (void)
166 // COMMANDLINEOPTION: Server: -dedicated [playerlimit] starts a dedicated server (with a command console), default playerlimit is 8
167 // COMMANDLINEOPTION: Server: -listen [playerlimit] starts a multiplayer server with graphical client, like singleplayer but other players can connect, default playerlimit is 8
168 // if no client is in the executable or -dedicated is specified on
169 // commandline, start a dedicated server
170 i = COM_CheckParm ("-dedicated");
171 if (i || !cl_available)
173 cls.state = ca_dedicated;
174 // check for -dedicated specifying how many players
175 if (i && i + 1 < com_argc && atoi (com_argv[i+1]) >= 1)
176 svs.maxclients = atoi (com_argv[i+1]);
177 if (COM_CheckParm ("-listen"))
178 Con_Printf ("Only one of -dedicated or -listen can be specified\n");
179 // default sv_public on for dedicated servers (often hosted by serious administrators), off for listen servers (often hosted by clueless users)
180 Cvar_SetValue("sv_public", 1);
182 else if (cl_available)
184 // client exists and not dedicated, check if -listen is specified
185 cls.state = ca_disconnected;
186 i = COM_CheckParm ("-listen");
189 // default players unless specified
190 if (i + 1 < com_argc && atoi (com_argv[i+1]) >= 1)
191 svs.maxclients = atoi (com_argv[i+1]);
195 // default players in some games, singleplayer in most
196 if (gamemode != GAME_GOODVSBAD2 && gamemode != GAME_NEXUIZ && gamemode != GAME_XONOTIC && gamemode != GAME_BATTLEMECH)
201 svs.maxclients = svs.maxclients_next = bound(1, svs.maxclients, MAX_SCOREBOARD);
203 svs.clients = (client_t *)Mem_Alloc(sv_mempool, sizeof(client_t) * svs.maxclients);
205 if (svs.maxclients > 1 && !deathmatch.integer && !coop.integer)
206 Cvar_SetValueQuick(&deathmatch, 1);
210 =======================
212 ======================
214 void Host_SaveConfig_f(void);
215 void Host_LoadConfig_f(void);
216 extern cvar_t sv_writepicture_quality;
217 extern cvar_t r_texture_jpeg_fastpicmip;
218 static void Host_InitLocal (void)
220 Cmd_AddCommand("saveconfig", Host_SaveConfig_f, "save settings to config.cfg (or a specified filename) immediately (also automatic when quitting)");
221 Cmd_AddCommand("loadconfig", Host_LoadConfig_f, "reset everything and reload configs");
223 Cvar_RegisterVariable (&cl_maxphysicsframesperserverframe);
224 Cvar_RegisterVariable (&host_framerate);
225 Cvar_RegisterVariable (&host_speeds);
226 Cvar_RegisterVariable (&host_maxwait);
227 Cvar_RegisterVariable (&cl_minfps);
228 Cvar_RegisterVariable (&cl_minfps_fade);
229 Cvar_RegisterVariable (&cl_minfps_qualitymax);
230 Cvar_RegisterVariable (&cl_minfps_qualitymin);
231 Cvar_RegisterVariable (&cl_minfps_qualitypower);
232 Cvar_RegisterVariable (&cl_minfps_qualityscale);
233 Cvar_RegisterVariable (&cl_maxfps);
234 Cvar_RegisterVariable (&cl_maxfps_alwayssleep);
235 Cvar_RegisterVariable (&cl_maxidlefps);
237 Cvar_RegisterVariable (&developer);
238 Cvar_RegisterVariable (&developer_extra);
239 Cvar_RegisterVariable (&developer_insane);
240 Cvar_RegisterVariable (&developer_loadfile);
241 Cvar_RegisterVariable (&developer_loading);
242 Cvar_RegisterVariable (&developer_entityparsing);
244 Cvar_RegisterVariable (×tamps);
245 Cvar_RegisterVariable (&timeformat);
247 Cvar_RegisterVariable (&sv_writepicture_quality);
248 Cvar_RegisterVariable (&r_texture_jpeg_fastpicmip);
256 Writes key bindings and archived cvars to config.cfg
259 void Host_SaveConfig_to(const char *file)
263 // dedicated servers initialize the host but don't parse and set the
265 // LordHavoc: don't save a config if it crashed in startup
266 if (host_framecount >= 3 && cls.state != ca_dedicated && !COM_CheckParm("-benchmark") && !COM_CheckParm("-capturedemo"))
268 f = FS_OpenRealFile(file, "wb", false);
271 Con_Printf("Couldn't write %s.\n", file);
275 Key_WriteBindings (f);
276 Cvar_WriteVariables (f);
281 void Host_SaveConfig(void)
283 Host_SaveConfig_to(CONFIGFILENAME);
285 void Host_SaveConfig_f(void)
287 const char *file = CONFIGFILENAME;
289 if(Cmd_Argc() >= 2) {
291 Con_Printf("Saving to %s\n", file);
294 Host_SaveConfig_to(file);
297 void Host_AddConfigText(void)
299 // set up the default startmap_sp and startmap_dm aliases (mods can
300 // override these) and then execute the quake.rc startup script
301 if (gamemode == GAME_NEHAHRA)
302 Cbuf_InsertText("alias startmap_sp \"map nehstart\"\nalias startmap_dm \"map nehstart\"\nexec " STARTCONFIGFILENAME "\n");
303 else if (gamemode == GAME_TRANSFUSION)
304 Cbuf_InsertText("alias startmap_sp \"map e1m1\"\n""alias startmap_dm \"map bb1\"\nexec " STARTCONFIGFILENAME "\n");
305 else if (gamemode == GAME_TEU)
306 Cbuf_InsertText("alias startmap_sp \"map start\"\nalias startmap_dm \"map start\"\nexec teu.rc\n");
308 Cbuf_InsertText("alias startmap_sp \"map start\"\nalias startmap_dm \"map start\"\nexec " STARTCONFIGFILENAME "\n");
315 Resets key bindings and cvars to defaults and then reloads scripts
318 void Host_LoadConfig_f(void)
320 // reset all cvars, commands and aliases to init values
321 Cmd_RestoreInitState();
322 // prepend a menu restart command to execute after the config
323 Cbuf_InsertText("\nmenu_restart\n");
324 // reset cvars to their defaults, and then exec startup scripts again
325 Host_AddConfigText();
332 Sends text across to be displayed
333 FIXME: make this just a stuffed echo?
336 void SV_ClientPrint(const char *msg)
338 if (host_client->netconnection)
340 MSG_WriteByte(&host_client->netconnection->message, svc_print);
341 MSG_WriteString(&host_client->netconnection->message, msg);
349 Sends text across to be displayed
350 FIXME: make this just a stuffed echo?
353 void SV_ClientPrintf(const char *fmt, ...)
356 char msg[MAX_INPUTLINE];
358 va_start(argptr,fmt);
359 dpvsnprintf(msg,sizeof(msg),fmt,argptr);
369 Sends text to all active clients
372 void SV_BroadcastPrint(const char *msg)
377 for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
379 if (client->active && client->netconnection)
381 MSG_WriteByte(&client->netconnection->message, svc_print);
382 MSG_WriteString(&client->netconnection->message, msg);
386 if (sv_echobprint.integer && cls.state == ca_dedicated)
394 Sends text to all active clients
397 void SV_BroadcastPrintf(const char *fmt, ...)
400 char msg[MAX_INPUTLINE];
402 va_start(argptr,fmt);
403 dpvsnprintf(msg,sizeof(msg),fmt,argptr);
406 SV_BroadcastPrint(msg);
413 Send text over to the client to be executed
416 void Host_ClientCommands(const char *fmt, ...)
419 char string[MAX_INPUTLINE];
421 if (!host_client->netconnection)
424 va_start(argptr,fmt);
425 dpvsnprintf(string, sizeof(string), fmt, argptr);
428 MSG_WriteByte(&host_client->netconnection->message, svc_stufftext);
429 MSG_WriteString(&host_client->netconnection->message, string);
433 =====================
436 Called when the player is getting totally kicked off the host
437 if (crash = true), don't bother sending signofs
438 =====================
440 void SV_DropClient(qboolean crash)
443 Con_Printf("Client \"%s\" dropped\n", host_client->name);
445 SV_StopDemoRecording(host_client);
447 // make sure edict is not corrupt (from a level change for example)
448 host_client->edict = PRVM_EDICT_NUM(host_client - svs.clients + 1);
450 if (host_client->netconnection)
452 // tell the client to be gone
455 // LordHavoc: no opportunity for resending, so use unreliable 3 times
456 unsigned char bufdata[8];
458 memset(&buf, 0, sizeof(buf));
460 buf.maxsize = sizeof(bufdata);
461 MSG_WriteByte(&buf, svc_disconnect);
462 NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, false);
463 NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, false);
464 NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, false);
468 // call qc ClientDisconnect function
469 // LordHavoc: don't call QC if server is dead (avoids recursive
470 // Host_Error in some mods when they run out of edicts)
471 if (host_client->clientconnectcalled && sv.active && host_client->edict)
473 // call the prog function for removing a client
474 // this will set the body to a dead frame, among other things
475 int saveSelf = PRVM_serverglobaledict(self);
476 host_client->clientconnectcalled = false;
477 PRVM_serverglobaledict(self) = PRVM_EDICT_TO_PROG(host_client->edict);
478 PRVM_ExecuteProgram(PRVM_serverfunction(ClientDisconnect), "QC function ClientDisconnect is missing");
479 PRVM_serverglobaledict(self) = saveSelf;
482 if (host_client->netconnection)
484 // break the net connection
485 NetConn_Close(host_client->netconnection);
486 host_client->netconnection = NULL;
489 // if a download is active, close it
490 if (host_client->download_file)
492 Con_DPrintf("Download of %s aborted when %s dropped\n", host_client->download_name, host_client->name);
493 FS_Close(host_client->download_file);
494 host_client->download_file = NULL;
495 host_client->download_name[0] = 0;
496 host_client->download_expectedposition = 0;
497 host_client->download_started = false;
500 // remove leaving player from scoreboard
501 host_client->name[0] = 0;
502 host_client->colors = 0;
503 host_client->frags = 0;
504 // send notification to all clients
505 // get number of client manually just to make sure we get it right...
506 i = host_client - svs.clients;
507 MSG_WriteByte (&sv.reliable_datagram, svc_updatename);
508 MSG_WriteByte (&sv.reliable_datagram, i);
509 MSG_WriteString (&sv.reliable_datagram, host_client->name);
510 MSG_WriteByte (&sv.reliable_datagram, svc_updatecolors);
511 MSG_WriteByte (&sv.reliable_datagram, i);
512 MSG_WriteByte (&sv.reliable_datagram, host_client->colors);
513 MSG_WriteByte (&sv.reliable_datagram, svc_updatefrags);
514 MSG_WriteByte (&sv.reliable_datagram, i);
515 MSG_WriteShort (&sv.reliable_datagram, host_client->frags);
517 // free the client now
518 if (host_client->entitydatabase)
519 EntityFrame_FreeDatabase(host_client->entitydatabase);
520 if (host_client->entitydatabase4)
521 EntityFrame4_FreeDatabase(host_client->entitydatabase4);
522 if (host_client->entitydatabase5)
523 EntityFrame5_FreeDatabase(host_client->entitydatabase5);
527 // clear a fields that matter to DP_SV_CLIENTNAME and DP_SV_CLIENTCOLORS, and also frags
528 PRVM_ED_ClearEdict(host_client->edict);
531 // clear the client struct (this sets active to false)
532 memset(host_client, 0, sizeof(*host_client));
534 // update server listing on the master because player count changed
535 // (which the master uses for filtering empty/full servers)
536 NetConn_Heartbeat(1);
540 for (i = 0;i < svs.maxclients;i++)
541 if (svs.clients[i].active && !svs.clients[i].spawned)
543 if (i == svs.maxclients)
545 Con_Printf("Loaded game, everyone rejoined - unpausing\n");
546 sv.paused = sv.loadgame = false; // we're basically done with loading now
555 This only happens at the end of a game, not between levels
558 void Host_ShutdownServer(void)
562 Con_DPrintf("Host_ShutdownServer\n");
567 NetConn_Heartbeat(2);
568 NetConn_Heartbeat(2);
570 // make sure all the clients know we're disconnecting
572 World_End(&sv.world);
574 if(PRVM_serverfunction(SV_Shutdown))
576 func_t s = PRVM_serverfunction(SV_Shutdown);
577 PRVM_serverfunction(SV_Shutdown) = 0; // prevent it from getting called again
578 PRVM_ExecuteProgram(s,"SV_Shutdown() required");
580 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
581 if (host_client->active)
582 SV_DropClient(false); // server shutdown
585 NetConn_CloseServerPorts();
591 memset(&sv, 0, sizeof(sv));
592 memset(svs.clients, 0, svs.maxclients*sizeof(client_t));
596 //============================================================================
600 Host_GetConsoleCommands
602 Add them exactly as if they had been typed at the console
605 void Host_GetConsoleCommands (void)
611 cmd = Sys_ConsoleInput ();
622 Returns a time report string, for example for
625 const char *Host_TimingReport(void)
627 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);
634 Runs all active servers
637 static void Host_Init(void);
643 double cl_timer, sv_timer;
644 double clframetime, deltarealtime, oldrealtime;
646 int pass1, pass2, pass3, i;
653 realtime = host_starttime = Sys_DoubleTime();
656 if (setjmp(host_abortframe))
658 SCR_ClearLoadingScreen(false);
659 continue; // something bad happened, or the server disconnected
662 oldrealtime = realtime;
663 realtime = Sys_DoubleTime();
665 deltarealtime = realtime - oldrealtime;
666 cl_timer += deltarealtime;
667 sv_timer += deltarealtime;
669 svs.perf_acc_realtime += deltarealtime;
671 // Look for clients who have spawned
672 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
673 if(host_client->spawned)
674 if(host_client->netconnection)
676 if(i == svs.maxclients)
678 // Nobody is looking? Then we won't do timing...
679 // Instead, reset it to zero
680 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;
682 else if(svs.perf_acc_realtime > 5)
684 svs.perf_cpuload = 1 - svs.perf_acc_sleeptime / svs.perf_acc_realtime;
685 svs.perf_lost = svs.perf_acc_lost / svs.perf_acc_realtime;
686 if(svs.perf_acc_offset_samples > 0)
688 svs.perf_offset_max = svs.perf_acc_offset_max;
689 svs.perf_offset_avg = svs.perf_acc_offset / svs.perf_acc_offset_samples;
690 svs.perf_offset_sdev = sqrt(svs.perf_acc_offset_squared / svs.perf_acc_offset_samples - svs.perf_offset_avg * svs.perf_offset_avg);
692 if(svs.perf_lost > 0 && developer_extra.integer)
693 Con_DPrintf("Server can't keep up: %s\n", Host_TimingReport());
694 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;
697 if (slowmo.value < 0.00001 && slowmo.value != 0)
698 Cvar_SetValue("slowmo", 0);
699 if (host_framerate.value < 0.00001 && host_framerate.value != 0)
700 Cvar_SetValue("host_framerate", 0);
702 // keep the random time dependent, but not when playing demos/benchmarking
703 if(!*sv_random_seed.string && !cls.demoplayback)
706 cl.islocalgame = NetConn_IsLocalGame();
708 // get new key events
709 Key_EventQueue_Unblock();
710 SndSys_SendKeyEvents();
713 NetConn_UpdateSockets();
715 Log_DestBuffer_Flush();
717 // receive packets on each main loop iteration, as the main loop may
718 // be undersleeping due to select() detecting a new packet
720 NetConn_ServerFrame();
724 // check for commands typed to the host
725 Host_GetConsoleCommands();
727 // when a server is running we only execute console commands on server frames
728 // (this mainly allows frikbot .way config files to work properly by staying in sync with the server qc)
729 // otherwise we execute them on client frames
730 if (sv.active ? sv_timer > 0 : cl_timer > 0)
732 // process console commands
733 // R_TimeReport("preconsole");
734 CL_VM_PreventInformationLeaks();
736 // R_TimeReport("console");
739 //Con_Printf("%6.0f %6.0f\n", cl_timer * 1000000.0, sv_timer * 1000000.0);
741 // if the accumulators haven't become positive yet, wait a while
742 if (cls.state == ca_dedicated)
743 wait = sv_timer * -1000000.0;
745 wait = cl_timer * -1000000.0;
747 wait = max(cl_timer, sv_timer) * -1000000.0;
749 if (!cls.timedemo && wait >= 1)
753 if(host_maxwait.value <= 0)
754 wait = min(wait, 1000000.0);
756 wait = min(wait, host_maxwait.value * 1000.0);
758 wait = 1; // because we cast to int
760 time0 = Sys_DoubleTime();
761 if (sv_checkforpacketsduringsleep.integer && !sys_usenoclockbutbenchmark.integer)
762 NetConn_SleepMicroseconds((int)wait);
764 Sys_Sleep((int)wait);
765 svs.perf_acc_sleeptime += Sys_DoubleTime() - time0;
766 // R_TimeReport("sleep");
772 //-------------------
776 //-------------------
778 // limit the frametime steps to no more than 100ms each
783 svs.perf_acc_lost += (sv_timer - 0.1);
787 if (sv.active && sv_timer > 0)
789 // execute one or more server frames, with an upper limit on how much
790 // execution time to spend on server frames to avoid freezing the game if
791 // the server is overloaded, this execution time limit means the game will
792 // slow down if the server is taking too long.
793 int framecount, framelimit = 1;
794 double advancetime, aborttime = 0;
797 if (cls.state == ca_dedicated)
798 Collision_Cache_NewFrame();
800 // run the world state
801 // don't allow simulation to run too fast or too slow or logic glitches can occur
803 // stop running server frames if the wall time reaches this value
804 if (sys_ticrate.value <= 0)
805 advancetime = sv_timer;
806 else if (cl.islocalgame && !sv_fixedframeratesingleplayer.integer)
808 // synchronize to the client frametime, but no less than 10ms and no more than sys_ticrate
809 advancetime = bound(0.01, cl_timer, sys_ticrate.value);
810 framelimit = cl_maxphysicsframesperserverframe.integer;
811 aborttime = realtime + 0.1;
815 advancetime = sys_ticrate.value;
816 // listen servers can run multiple server frames per client frame
817 if (cls.state == ca_connected)
819 framelimit = cl_maxphysicsframesperserverframe.integer;
820 aborttime = realtime + 0.1;
823 if(slowmo.value > 0 && slowmo.value < 1)
824 advancetime = min(advancetime, 0.1 / slowmo.value);
826 advancetime = min(advancetime, 0.1);
830 offset = sv_timer + (Sys_DoubleTime() - realtime);
831 ++svs.perf_acc_offset_samples;
832 svs.perf_acc_offset += offset;
833 svs.perf_acc_offset_squared += offset * offset;
834 if(svs.perf_acc_offset_max < offset)
835 svs.perf_acc_offset_max = offset;
838 // only advance time if not paused
839 // the game also pauses in singleplayer when menu or console is used
840 sv.frametime = advancetime * slowmo.value;
841 if (host_framerate.value)
842 sv.frametime = host_framerate.value;
843 if (sv.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive || cl.csqc_paused)))
846 // setup the VM frame
849 for (framecount = 0;framecount < framelimit && sv_timer > 0;framecount++)
851 sv_timer -= advancetime;
853 // move things around and think unless paused
857 // if this server frame took too long, break out of the loop
858 if (framelimit > 1 && Sys_DoubleTime() >= aborttime)
861 R_TimeReport("serverphysics");
863 // send all messages to the clients
864 SV_SendClientMessages();
866 if (sv.paused == 1 && realtime > sv.pausedstart && sv.pausedstart > 0) {
867 prog->globals.generic[OFS_PARM0] = realtime - sv.pausedstart;
868 PRVM_ExecuteProgram(PRVM_serverfunction(SV_PausedTic), "QC function SV_PausedTic is missing");
871 // end the server VM frame
874 // send an heartbeat if enough time has passed since the last one
875 NetConn_Heartbeat(0);
876 R_TimeReport("servernetwork");
880 // don't let r_speeds display jump around
881 R_TimeReport("serverphysics");
882 R_TimeReport("servernetwork");
885 //-------------------
889 //-------------------
891 if (cls.state != ca_dedicated && (cl_timer > 0 || cls.timedemo || ((vid_activewindow ? cl_maxfps : cl_maxidlefps).value < 1)))
894 Collision_Cache_NewFrame();
895 R_TimeReport("collisioncache");
896 // decide the simulation time
897 if (cls.capturevideo.active)
900 if (cls.capturevideo.realtime)
901 clframetime = cl.realframetime = max(cl_timer, 1.0 / cls.capturevideo.framerate);
904 clframetime = 1.0 / cls.capturevideo.framerate;
905 cl.realframetime = max(cl_timer, clframetime);
908 else if (vid_activewindow && cl_maxfps.value >= 1 && !cls.timedemo)
910 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxfps.value);
911 // when running slow, we need to sleep to keep input responsive
912 wait = bound(0, cl_maxfps_alwayssleep.value * 1000, 100000);
914 Sys_Sleep((int)wait);
916 else if (!vid_activewindow && cl_maxidlefps.value >= 1 && !cls.timedemo)
917 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxidlefps.value);
919 clframetime = cl.realframetime = cl_timer;
921 // apply slowmo scaling
922 clframetime *= cl.movevars_timescale;
923 // scale playback speed of demos by slowmo cvar
924 if (cls.demoplayback)
926 clframetime *= slowmo.value;
927 // if demo playback is paused, don't advance time at all
932 // host_framerate overrides all else
933 if (host_framerate.value)
934 clframetime = host_framerate.value;
936 if (cl.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive || cl.csqc_paused)))
940 clframetime = cl.realframetime = cl_timer;
942 // deduct the frame time from the accumulator
943 cl_timer -= cl.realframetime;
945 cl.oldtime = cl.time;
946 cl.time += clframetime;
949 if (host_speeds.integer)
950 time1 = Sys_DoubleTime();
951 R_TimeReport("pre-input");
953 // Collect input into cmd
956 R_TimeReport("input");
958 // check for new packets
959 NetConn_ClientFrame();
961 // read a new frame from a demo if needed
962 CL_ReadDemoMessage();
963 R_TimeReport("clientnetwork");
965 // now that packets have been read, send input to server
967 R_TimeReport("sendmove");
969 // update client world (interpolate entities, create trails, etc)
971 R_TimeReport("lerpworld");
975 R_TimeReport("client");
978 R_TimeReport("render");
980 if (host_speeds.integer)
981 time2 = Sys_DoubleTime();
984 if(cl.csqc_usecsqclistener)
986 S_Update(&cl.csqc_listenermatrix);
987 cl.csqc_usecsqclistener = false;
990 S_Update(&r_refdef.view.matrix);
993 R_TimeReport("audio");
995 // reset gathering of mouse input
996 in_mouse_x = in_mouse_y = 0;
998 if (host_speeds.integer)
1000 pass1 = (int)((time1 - time3)*1000000);
1001 time3 = Sys_DoubleTime();
1002 pass2 = (int)((time2 - time1)*1000000);
1003 pass3 = (int)((time3 - time2)*1000000);
1004 Con_Printf("%6ius total %6ius server %6ius gfx %6ius snd\n",
1005 pass1+pass2+pass3, pass1, pass2, pass3);
1010 Mem_CheckSentinelsGlobal();
1012 if (developer_memorydebug.integer)
1013 Mem_CheckSentinelsGlobal();
1016 // if there is some time remaining from this frame, reset the timers
1021 svs.perf_acc_lost += sv_timer;
1029 //============================================================================
1031 qboolean vid_opened = false;
1032 void Host_StartVideo(void)
1034 if (!vid_opened && cls.state != ca_dedicated)
1037 // make sure we open sockets before opening video because the Windows Firewall "unblock?" dialog can screw up the graphics context on some graphics drivers
1038 NetConn_UpdateSockets();
1044 char engineversion[128];
1046 qboolean sys_nostdout = false;
1048 extern void u8_Init(void);
1049 extern void Render_Init(void);
1050 extern void Mathlib_Init(void);
1051 extern void FS_Init_SelfPack(void);
1052 extern void FS_Init(void);
1053 extern void FS_Shutdown(void);
1054 extern void PR_Cmd_Init(void);
1055 extern void COM_Init_Commands(void);
1056 extern void FS_Init_Commands(void);
1057 extern qboolean host_stuffcmdsrun;
1060 ====================
1062 ====================
1064 static void Host_Init (void)
1069 if (COM_CheckParm("-profilegameonly"))
1070 Sys_AllowProfiling(false);
1072 // LordHavoc: quake never seeded the random number generator before... heh
1073 if (COM_CheckParm("-benchmark"))
1074 srand(0); // predictable random sequence for -benchmark
1076 srand((unsigned int)time(NULL));
1078 // FIXME: this is evil, but possibly temporary
1079 // LordHavoc: doesn't seem very temporary...
1080 // LordHavoc: made this a saved cvar
1081 // COMMANDLINEOPTION: Console: -developer enables warnings and other notices (RECOMMENDED for mod developers)
1082 if (COM_CheckParm("-developer"))
1084 developer.value = developer.integer = 1;
1085 developer.string = "1";
1088 if (COM_CheckParm("-developer2") || COM_CheckParm("-developer3"))
1090 developer.value = developer.integer = 1;
1091 developer.string = "1";
1092 developer_extra.value = developer_extra.integer = 1;
1093 developer_extra.string = "1";
1094 developer_insane.value = developer_insane.integer = 1;
1095 developer_insane.string = "1";
1096 developer_memory.value = developer_memory.integer = 1;
1097 developer_memory.string = "1";
1098 developer_memorydebug.value = developer_memorydebug.integer = 1;
1099 developer_memorydebug.string = "1";
1102 if (COM_CheckParm("-developer3"))
1104 gl_paranoid.integer = 1;gl_paranoid.string = "1";
1105 gl_printcheckerror.integer = 1;gl_printcheckerror.string = "1";
1108 // COMMANDLINEOPTION: Console: -nostdout disables text output to the terminal the game was launched from
1109 if (COM_CheckParm("-nostdout"))
1112 // used by everything
1115 // initialize console command/cvar/alias/command execution systems
1118 // initialize memory subsystem cvars/commands
1119 Memory_Init_Commands();
1121 // initialize console and logging and its cvars/commands
1124 // initialize various cvars that could not be initialized earlier
1126 Curl_Init_Commands();
1127 Cmd_Init_Commands();
1128 Sys_Init_Commands();
1129 COM_Init_Commands();
1132 // initialize console window (only used by sys_win.c)
1135 // initialize the self-pack (must be before COM_InitGameType as it may add command line options)
1138 // detect gamemode from commandline options or executable name
1141 // construct a version string for the corner of the console
1143 dpsnprintf (engineversion, sizeof (engineversion), "%s %s %s", gamename, os, buildstring);
1144 Con_Printf("%s\n", engineversion);
1146 // initialize process nice level
1147 Sys_InitProcessNice();
1149 // initialize ixtable
1152 // initialize filesystem (including fs_basedir, fs_gamedir, -game, scr_screenshot_name)
1155 // must be after FS_Init
1157 Crypto_Init_Commands();
1167 V_Init(); // some cvars needed by server player physics (cl_rollangle etc)
1168 Host_InitCommands();
1170 Host_ServerOptions();
1174 if (cls.state == ca_dedicated)
1175 Cmd_AddCommand ("disconnect", CL_Disconnect_f, "disconnect from server (or disconnect all clients if running a server)");
1178 Con_DPrintf("Initializing client\n");
1192 // save off current state of aliases, commands and cvars for later restore if FS_GameDir_f is called
1193 // NOTE: menu commands are freed by Cmd_RestoreInitState
1194 Cmd_SaveInitState();
1196 // FIXME: put this into some neat design, but the menu should be allowed to crash
1197 // without crashing the whole game, so this should just be a short-time solution
1199 // here comes the not so critical stuff
1200 if (setjmp(host_abortframe)) {
1204 Host_AddConfigText();
1207 // if stuffcmds wasn't run, then quake.rc is probably missing, use default
1208 if (!host_stuffcmdsrun)
1210 Cbuf_AddText("exec default.cfg\nexec " CONFIGFILENAME "\nexec autoexec.cfg\nstuffcmds\n");
1214 // put up the loading image so the user doesn't stare at a black screen...
1215 SCR_BeginLoadingPlaque();
1217 if (cls.state != ca_dedicated)
1222 // check for special benchmark mode
1223 // 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)
1224 i = COM_CheckParm("-benchmark");
1225 if (i && i + 1 < com_argc)
1226 if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1228 Cbuf_AddText(va("timedemo %s\n", com_argv[i + 1]));
1232 // check for special demo mode
1233 // COMMANDLINEOPTION: Client: -demo <demoname> runs a playdemo and quits
1234 i = COM_CheckParm("-demo");
1235 if (i && i + 1 < com_argc)
1236 if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1238 Cbuf_AddText(va("playdemo %s\n", com_argv[i + 1]));
1242 // COMMANDLINEOPTION: Client: -capturedemo <demoname> captures a playdemo and quits
1243 i = COM_CheckParm("-capturedemo");
1244 if (i && i + 1 < com_argc)
1245 if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1247 Cbuf_AddText(va("playdemo %s\ncl_capturevideo 1\n", com_argv[i + 1]));
1251 if (cls.state == ca_dedicated || COM_CheckParm("-listen"))
1252 if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1254 Cbuf_AddText("startmap_dm\n");
1258 if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1260 Cbuf_AddText("togglemenu\n");
1264 Con_DPrint("========Initialized=========\n");
1266 //Host_StartVideo();
1274 FIXME: this is a callback from Sys_Quit and Sys_Error. It would be better
1275 to run quit through here before the final handoff to the sys code.
1278 void Host_Shutdown(void)
1280 static qboolean isdown = false;
1284 Con_Print("recursive shutdown\n");
1287 if (setjmp(host_abortframe))
1289 Con_Print("aborted the quitting frame?!?\n");
1294 // be quiet while shutting down
1297 // disconnect client from server if active
1300 // shut down local server if active
1301 Host_ShutdownServer ();
1308 // AK hmm, no PRVM_Shutdown(); yet
1310 CL_Video_Shutdown();
1314 CDAudio_Shutdown ();
1317 NetConn_Shutdown ();
1320 if (cls.state != ca_dedicated)
1322 R_Modules_Shutdown();