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
37 A server can always be started, even if the system started out as a client
40 A client can NOT be started if the system started as a dedicated server.
42 Memory is cleared / released when a server or client begins, not when they end.
46 // how many frames have occurred
47 // (checked by Host_Error and Host_SaveConfig_f)
48 int host_framecount = 0;
49 // LordHavoc: set when quit is executed
50 qboolean host_shuttingdown = false;
52 // the accumulated mainloop time since application started (with filtering), without any slowmo or clamping
54 // the main loop wall time for this frame
55 double host_dirtytime;
58 client_t *host_client;
60 jmp_buf host_abortframe;
62 // pretend frames take this amount of time (in seconds), 0 = realtime
63 cvar_t host_framerate = {0, "host_framerate","0", "locks frame timing to this value in seconds, 0.05 is 20fps for example, note that this can easily run too fast, use cl_maxfps if you want to limit your framerate instead, or sys_ticrate to limit server speed"};
64 cvar_t cl_maxphysicsframesperserverframe = {0, "cl_maxphysicsframesperserverframe","10", "maximum number of physics frames per server frame"};
65 // shows time used by certain subsystems
66 cvar_t host_speeds = {0, "host_speeds","0", "reports how much time is used in server/graphics/sound"};
67 cvar_t host_maxwait = {0, "host_maxwait","1000", "maximum sleep time requested from the operating system in millisecond. Larger sleeps will be done using multiple host_maxwait length sleeps. Lowering this value will increase CPU load, but may help working around problems with accuracy of sleep times."};
68 cvar_t cl_minfps = {CVAR_SAVE, "cl_minfps", "40", "minimum fps target - while the rendering performance is below this, it will drift toward lower quality"};
69 cvar_t cl_minfps_fade = {CVAR_SAVE, "cl_minfps_fade", "1", "how fast the quality adapts to varying framerate"};
70 cvar_t cl_minfps_qualitymax = {CVAR_SAVE, "cl_minfps_qualitymax", "1", "highest allowed drawdistance multiplier"};
71 cvar_t cl_minfps_qualitymin = {CVAR_SAVE, "cl_minfps_qualitymin", "0.25", "lowest allowed drawdistance multiplier"};
72 cvar_t cl_minfps_qualitymultiply = {CVAR_SAVE, "cl_minfps_qualitymultiply", "0.2", "multiplier for quality changes in quality change per second render time (1 assumes linearity of quality and render time)"};
73 cvar_t cl_minfps_qualityhysteresis = {CVAR_SAVE, "cl_minfps_qualityhysteresis", "0.05", "reduce all quality increments by this to reduce flickering"};
74 cvar_t cl_minfps_qualitystepmax = {CVAR_SAVE, "cl_minfps_qualitystepmax", "0.1", "maximum quality change in a single frame"};
75 cvar_t cl_minfps_force = {0, "cl_minfps_force", "0", "also apply quality reductions in timedemo/capturevideo"};
76 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)"};
77 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"};
78 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"};
80 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"};
81 cvar_t developer_extra = {0, "developer_extra", "0", "prints additional debugging messages, often very verbose!"};
82 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!"};
83 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)"};
84 cvar_t developer_loading = {0, "developer_loading","0", "prints information about files as they are loaded or unloaded successfully"};
85 cvar_t developer_entityparsing = {0, "developer_entityparsing", "0", "prints detailed network entities information each time a packet is received"};
87 cvar_t timestamps = {CVAR_SAVE, "timestamps", "0", "prints timestamps on console messages"};
88 cvar_t timeformat = {CVAR_SAVE, "timeformat", "[%Y-%m-%d %H:%M:%S] ", "time format to use on timestamped console messages"};
90 cvar_t sessionid = {CVAR_READONLY, "sessionid", "", "ID of the current session (use the -sessionid parameter to set it); this is always either empty or begins with a dot (.)"};
91 cvar_t locksession = {0, "locksession", "0", "Lock the session? 0 = no, 1 = yes and abort on failure, 2 = yes and continue on failure"};
95 Host_AbortCurrentFrame
97 aborts the current host frame and goes on with the next one
100 void Host_AbortCurrentFrame(void) DP_FUNC_NORETURN;
101 void Host_AbortCurrentFrame(void)
103 // in case we were previously nice, make us mean again
104 Sys_MakeProcessMean();
106 longjmp (host_abortframe, 1);
113 This shuts down both the client and server
116 void Host_Error (const char *error, ...)
118 static char hosterrorstring1[MAX_INPUTLINE]; // THREAD UNSAFE
119 static char hosterrorstring2[MAX_INPUTLINE]; // THREAD UNSAFE
120 static qboolean hosterror = false;
123 // turn off rcon redirect if it was active when the crash occurred
124 // to prevent loops when it is a networking problem
125 Con_Rcon_Redirect_Abort();
127 va_start (argptr,error);
128 dpvsnprintf (hosterrorstring1,sizeof(hosterrorstring1),error,argptr);
131 Con_Printf("Host_Error: %s\n", hosterrorstring1);
133 // LordHavoc: if crashing very early, or currently shutting down, do
135 if (host_framecount < 3 || host_shuttingdown)
136 Sys_Error ("Host_Error: %s", hosterrorstring1);
139 Sys_Error ("Host_Error: recursively entered (original error was: %s new error is: %s)", hosterrorstring2, hosterrorstring1);
142 strlcpy(hosterrorstring2, hosterrorstring1, sizeof(hosterrorstring2));
144 CL_Parse_DumpPacket();
146 CL_Parse_ErrorCleanUp();
150 // print out where the crash happened, if it was caused by QC (and do a cleanup)
151 PRVM_Crash(SVVM_prog);
152 PRVM_Crash(CLVM_prog);
153 PRVM_Crash(MVM_prog);
155 cl.csqc_loaded = false;
156 Cvar_SetValueQuick(&csqc_progcrc, -1);
157 Cvar_SetValueQuick(&csqc_progsize, -1);
159 SV_LockThreadMutex();
160 Host_ShutdownServer ();
161 SV_UnlockThreadMutex();
163 if (cls.state == ca_dedicated)
164 Sys_Error ("Host_Error: %s",hosterrorstring2); // dedicated servers exit
171 Host_AbortCurrentFrame();
174 static void Host_ServerOptions (void)
181 // COMMANDLINEOPTION: Server: -dedicated [playerlimit] starts a dedicated server (with a command console), default playerlimit is 8
182 // COMMANDLINEOPTION: Server: -listen [playerlimit] starts a multiplayer server with graphical client, like singleplayer but other players can connect, default playerlimit is 8
183 // if no client is in the executable or -dedicated is specified on
184 // commandline, start a dedicated server
185 i = COM_CheckParm ("-dedicated");
186 if (i || !cl_available)
188 cls.state = ca_dedicated;
189 // check for -dedicated specifying how many players
190 if (i && i + 1 < com_argc && atoi (com_argv[i+1]) >= 1)
191 svs.maxclients = atoi (com_argv[i+1]);
192 if (COM_CheckParm ("-listen"))
193 Con_Printf ("Only one of -dedicated or -listen can be specified\n");
194 // default sv_public on for dedicated servers (often hosted by serious administrators), off for listen servers (often hosted by clueless users)
195 Cvar_SetValue("sv_public", 1);
197 else if (cl_available)
199 // client exists and not dedicated, check if -listen is specified
200 cls.state = ca_disconnected;
201 i = COM_CheckParm ("-listen");
204 // default players unless specified
205 if (i + 1 < com_argc && atoi (com_argv[i+1]) >= 1)
206 svs.maxclients = atoi (com_argv[i+1]);
210 // default players in some games, singleplayer in most
211 if (gamemode != GAME_GOODVSBAD2 && gamemode != GAME_NEXUIZ && gamemode != GAME_XONOTIC && gamemode != GAME_BATTLEMECH)
216 svs.maxclients = svs.maxclients_next = bound(1, svs.maxclients, MAX_SCOREBOARD);
218 svs.clients = (client_t *)Mem_Alloc(sv_mempool, sizeof(client_t) * svs.maxclients);
220 if (svs.maxclients > 1 && !deathmatch.integer && !coop.integer)
221 Cvar_SetValueQuick(&deathmatch, 1);
225 =======================
227 ======================
229 void Host_SaveConfig_f(void);
230 void Host_LoadConfig_f(void);
231 extern cvar_t sv_writepicture_quality;
232 extern cvar_t r_texture_jpeg_fastpicmip;
233 static void Host_InitLocal (void)
235 Cmd_AddCommand("saveconfig", Host_SaveConfig_f, "save settings to config.cfg (or a specified filename) immediately (also automatic when quitting)");
236 Cmd_AddCommand("loadconfig", Host_LoadConfig_f, "reset everything and reload configs");
238 Cvar_RegisterVariable (&cl_maxphysicsframesperserverframe);
239 Cvar_RegisterVariable (&host_framerate);
240 Cvar_RegisterVariable (&host_speeds);
241 Cvar_RegisterVariable (&host_maxwait);
242 Cvar_RegisterVariable (&cl_minfps);
243 Cvar_RegisterVariable (&cl_minfps_fade);
244 Cvar_RegisterVariable (&cl_minfps_qualitymax);
245 Cvar_RegisterVariable (&cl_minfps_qualitymin);
246 Cvar_RegisterVariable (&cl_minfps_qualitystepmax);
247 Cvar_RegisterVariable (&cl_minfps_qualityhysteresis);
248 Cvar_RegisterVariable (&cl_minfps_qualitymultiply);
249 Cvar_RegisterVariable (&cl_minfps_force);
250 Cvar_RegisterVariable (&cl_maxfps);
251 Cvar_RegisterVariable (&cl_maxfps_alwayssleep);
252 Cvar_RegisterVariable (&cl_maxidlefps);
254 Cvar_RegisterVariable (&developer);
255 Cvar_RegisterVariable (&developer_extra);
256 Cvar_RegisterVariable (&developer_insane);
257 Cvar_RegisterVariable (&developer_loadfile);
258 Cvar_RegisterVariable (&developer_loading);
259 Cvar_RegisterVariable (&developer_entityparsing);
261 Cvar_RegisterVariable (×tamps);
262 Cvar_RegisterVariable (&timeformat);
264 Cvar_RegisterVariable (&sv_writepicture_quality);
265 Cvar_RegisterVariable (&r_texture_jpeg_fastpicmip);
273 Writes key bindings and archived cvars to config.cfg
276 static void Host_SaveConfig_to(const char *file)
280 // dedicated servers initialize the host but don't parse and set the
282 // LordHavoc: don't save a config if it crashed in startup
283 if (host_framecount >= 3 && cls.state != ca_dedicated && !COM_CheckParm("-benchmark") && !COM_CheckParm("-capturedemo"))
285 f = FS_OpenRealFile(file, "wb", false);
288 Con_Printf("Couldn't write %s.\n", file);
292 Key_WriteBindings (f);
293 Cvar_WriteVariables (f);
298 void Host_SaveConfig(void)
300 Host_SaveConfig_to(CONFIGFILENAME);
302 void Host_SaveConfig_f(void)
304 const char *file = CONFIGFILENAME;
306 if(Cmd_Argc() >= 2) {
308 Con_Printf("Saving to %s\n", file);
311 Host_SaveConfig_to(file);
314 static void Host_AddConfigText(void)
316 // set up the default startmap_sp and startmap_dm aliases (mods can
317 // override these) and then execute the quake.rc startup script
318 if (gamemode == GAME_NEHAHRA)
319 Cbuf_InsertText("alias startmap_sp \"map nehstart\"\nalias startmap_dm \"map nehstart\"\nexec " STARTCONFIGFILENAME "\n");
320 else if (gamemode == GAME_TRANSFUSION)
321 Cbuf_InsertText("alias startmap_sp \"map e1m1\"\n""alias startmap_dm \"map bb1\"\nexec " STARTCONFIGFILENAME "\n");
322 else if (gamemode == GAME_TEU)
323 Cbuf_InsertText("alias startmap_sp \"map start\"\nalias startmap_dm \"map start\"\nexec teu.rc\n");
325 Cbuf_InsertText("alias startmap_sp \"map start\"\nalias startmap_dm \"map start\"\nexec " STARTCONFIGFILENAME "\n");
332 Resets key bindings and cvars to defaults and then reloads scripts
335 void Host_LoadConfig_f(void)
337 // reset all cvars, commands and aliases to init values
338 Cmd_RestoreInitState();
339 // prepend a menu restart command to execute after the config
340 Cbuf_InsertText("\nmenu_restart\n");
341 // reset cvars to their defaults, and then exec startup scripts again
342 Host_AddConfigText();
349 Sends text across to be displayed
350 FIXME: make this just a stuffed echo?
353 void SV_ClientPrint(const char *msg)
355 if (host_client->netconnection)
357 MSG_WriteByte(&host_client->netconnection->message, svc_print);
358 MSG_WriteString(&host_client->netconnection->message, msg);
366 Sends text across to be displayed
367 FIXME: make this just a stuffed echo?
370 void SV_ClientPrintf(const char *fmt, ...)
373 char msg[MAX_INPUTLINE];
375 va_start(argptr,fmt);
376 dpvsnprintf(msg,sizeof(msg),fmt,argptr);
386 Sends text to all active clients
389 void SV_BroadcastPrint(const char *msg)
394 for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
396 if (client->active && client->netconnection)
398 MSG_WriteByte(&client->netconnection->message, svc_print);
399 MSG_WriteString(&client->netconnection->message, msg);
403 if (sv_echobprint.integer && cls.state == ca_dedicated)
411 Sends text to all active clients
414 void SV_BroadcastPrintf(const char *fmt, ...)
417 char msg[MAX_INPUTLINE];
419 va_start(argptr,fmt);
420 dpvsnprintf(msg,sizeof(msg),fmt,argptr);
423 SV_BroadcastPrint(msg);
430 Send text over to the client to be executed
433 void Host_ClientCommands(const char *fmt, ...)
436 char string[MAX_INPUTLINE];
438 if (!host_client->netconnection)
441 va_start(argptr,fmt);
442 dpvsnprintf(string, sizeof(string), fmt, argptr);
445 MSG_WriteByte(&host_client->netconnection->message, svc_stufftext);
446 MSG_WriteString(&host_client->netconnection->message, string);
450 =====================
453 Called when the player is getting totally kicked off the host
454 if (crash = true), don't bother sending signofs
455 =====================
457 void SV_DropClient(qboolean crash)
459 prvm_prog_t *prog = SVVM_prog;
461 Con_Printf("Client \"%s\" dropped\n", host_client->name);
463 SV_StopDemoRecording(host_client);
465 // make sure edict is not corrupt (from a level change for example)
466 host_client->edict = PRVM_EDICT_NUM(host_client - svs.clients + 1);
468 if (host_client->netconnection)
470 // tell the client to be gone
473 // LordHavoc: no opportunity for resending, so use unreliable 3 times
474 unsigned char bufdata[8];
476 memset(&buf, 0, sizeof(buf));
478 buf.maxsize = sizeof(bufdata);
479 MSG_WriteByte(&buf, svc_disconnect);
480 NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, false);
481 NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, false);
482 NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, false);
486 // call qc ClientDisconnect function
487 // LordHavoc: don't call QC if server is dead (avoids recursive
488 // Host_Error in some mods when they run out of edicts)
489 if (host_client->clientconnectcalled && sv.active && host_client->edict)
491 // call the prog function for removing a client
492 // this will set the body to a dead frame, among other things
493 int saveSelf = PRVM_serverglobaledict(self);
494 host_client->clientconnectcalled = false;
495 PRVM_serverglobalfloat(time) = sv.time;
496 PRVM_serverglobaledict(self) = PRVM_EDICT_TO_PROG(host_client->edict);
497 prog->ExecuteProgram(prog, PRVM_serverfunction(ClientDisconnect), "QC function ClientDisconnect is missing");
498 PRVM_serverglobaledict(self) = saveSelf;
501 if (host_client->netconnection)
503 // break the net connection
504 NetConn_Close(host_client->netconnection);
505 host_client->netconnection = NULL;
508 // if a download is active, close it
509 if (host_client->download_file)
511 Con_DPrintf("Download of %s aborted when %s dropped\n", host_client->download_name, host_client->name);
512 FS_Close(host_client->download_file);
513 host_client->download_file = NULL;
514 host_client->download_name[0] = 0;
515 host_client->download_expectedposition = 0;
516 host_client->download_started = false;
519 // remove leaving player from scoreboard
520 host_client->name[0] = 0;
521 host_client->colors = 0;
522 host_client->frags = 0;
523 // send notification to all clients
524 // get number of client manually just to make sure we get it right...
525 i = host_client - svs.clients;
526 MSG_WriteByte (&sv.reliable_datagram, svc_updatename);
527 MSG_WriteByte (&sv.reliable_datagram, i);
528 MSG_WriteString (&sv.reliable_datagram, host_client->name);
529 MSG_WriteByte (&sv.reliable_datagram, svc_updatecolors);
530 MSG_WriteByte (&sv.reliable_datagram, i);
531 MSG_WriteByte (&sv.reliable_datagram, host_client->colors);
532 MSG_WriteByte (&sv.reliable_datagram, svc_updatefrags);
533 MSG_WriteByte (&sv.reliable_datagram, i);
534 MSG_WriteShort (&sv.reliable_datagram, host_client->frags);
536 // free the client now
537 if (host_client->entitydatabase)
538 EntityFrame_FreeDatabase(host_client->entitydatabase);
539 if (host_client->entitydatabase4)
540 EntityFrame4_FreeDatabase(host_client->entitydatabase4);
541 if (host_client->entitydatabase5)
542 EntityFrame5_FreeDatabase(host_client->entitydatabase5);
546 // clear a fields that matter to DP_SV_CLIENTNAME and DP_SV_CLIENTCOLORS, and also frags
547 PRVM_ED_ClearEdict(prog, host_client->edict);
550 // clear the client struct (this sets active to false)
551 memset(host_client, 0, sizeof(*host_client));
553 // update server listing on the master because player count changed
554 // (which the master uses for filtering empty/full servers)
555 NetConn_Heartbeat(1);
559 for (i = 0;i < svs.maxclients;i++)
560 if (svs.clients[i].active && !svs.clients[i].spawned)
562 if (i == svs.maxclients)
564 Con_Printf("Loaded game, everyone rejoined - unpausing\n");
565 sv.paused = sv.loadgame = false; // we're basically done with loading now
574 This only happens at the end of a game, not between levels
577 void Host_ShutdownServer(void)
579 prvm_prog_t *prog = SVVM_prog;
582 Con_DPrintf("Host_ShutdownServer\n");
587 NetConn_Heartbeat(2);
588 NetConn_Heartbeat(2);
590 // make sure all the clients know we're disconnecting
591 World_End(&sv.world);
594 if(PRVM_serverfunction(SV_Shutdown))
596 func_t s = PRVM_serverfunction(SV_Shutdown);
597 PRVM_serverglobalfloat(time) = sv.time;
598 PRVM_serverfunction(SV_Shutdown) = 0; // prevent it from getting called again
599 prog->ExecuteProgram(prog, s,"SV_Shutdown() required");
602 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
603 if (host_client->active)
604 SV_DropClient(false); // server shutdown
606 NetConn_CloseServerPorts();
612 memset(&sv, 0, sizeof(sv));
613 memset(svs.clients, 0, svs.maxclients*sizeof(client_t));
615 cl.islocalgame = false;
619 //============================================================================
623 Host_GetConsoleCommands
625 Add them exactly as if they had been typed at the console
628 static void Host_GetConsoleCommands (void)
634 cmd = Sys_ConsoleInput ();
645 Returns a time report string, for example for
648 const char *Host_TimingReport(char *buf, size_t buflen)
650 return va(buf, buflen, "%.1f%% CPU, %.2f%% lost, offset avg %.1fms, max %.1fms, sdev %.1fms", svs.perf_cpuload * 100, svs.perf_lost * 100, svs.perf_offset_avg * 1000, svs.perf_offset_max * 1000, svs.perf_offset_sdev * 1000);
657 Runs all active servers
660 static void Host_Init(void);
666 double cl_timer = 0, sv_timer = 0;
667 double clframetime, deltacleantime, olddirtytime, dirtytime;
669 int pass1, pass2, pass3, i;
678 if (setjmp(host_abortframe))
680 SCR_ClearLoadingScreen(false);
681 continue; // something bad happened, or the server disconnected
684 olddirtytime = host_dirtytime;
685 dirtytime = Sys_DirtyTime();
686 deltacleantime = dirtytime - olddirtytime;
687 if (deltacleantime < 0)
689 // warn if it's significant
690 if (deltacleantime < -0.01)
691 Con_Printf("Host_Mingled: time stepped backwards (went from %f to %f, difference %f)\n", olddirtytime, dirtytime, deltacleantime);
694 else if (deltacleantime >= 1800)
696 Con_Printf("Host_Mingled: time stepped forward (went from %f to %f, difference %f)\n", olddirtytime, dirtytime, deltacleantime);
699 realtime += deltacleantime;
700 host_dirtytime = dirtytime;
702 cl_timer += deltacleantime;
703 sv_timer += deltacleantime;
707 svs.perf_acc_realtime += deltacleantime;
709 // Look for clients who have spawned
711 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
712 if(host_client->spawned)
713 if(host_client->netconnection)
717 // don't accumulate time for the first 10 seconds of a match
718 // so things can settle
719 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;
721 else if(svs.perf_acc_realtime > 5)
723 svs.perf_cpuload = 1 - svs.perf_acc_sleeptime / svs.perf_acc_realtime;
724 svs.perf_lost = svs.perf_acc_lost / svs.perf_acc_realtime;
725 if(svs.perf_acc_offset_samples > 0)
727 svs.perf_offset_max = svs.perf_acc_offset_max;
728 svs.perf_offset_avg = svs.perf_acc_offset / svs.perf_acc_offset_samples;
729 svs.perf_offset_sdev = sqrt(svs.perf_acc_offset_squared / svs.perf_acc_offset_samples - svs.perf_offset_avg * svs.perf_offset_avg);
731 if(svs.perf_lost > 0 && developer_extra.integer)
732 if(playing) // only complain if anyone is looking
733 Con_DPrintf("Server can't keep up: %s\n", Host_TimingReport(vabuf, sizeof(vabuf)));
734 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;
738 if (slowmo.value < 0.00001 && slowmo.value != 0)
739 Cvar_SetValue("slowmo", 0);
740 if (host_framerate.value < 0.00001 && host_framerate.value != 0)
741 Cvar_SetValue("host_framerate", 0);
743 // keep the random time dependent, but not when playing demos/benchmarking
744 if(!*sv_random_seed.string && !cls.demoplayback)
747 // get new key events
748 Key_EventQueue_Unblock();
749 SndSys_SendKeyEvents();
752 NetConn_UpdateSockets();
754 Log_DestBuffer_Flush();
756 // receive packets on each main loop iteration, as the main loop may
757 // be undersleeping due to select() detecting a new packet
758 if (sv.active && !svs.threaded)
759 NetConn_ServerFrame();
763 // check for commands typed to the host
764 Host_GetConsoleCommands();
766 // when a server is running we only execute console commands on server frames
767 // (this mainly allows frikbot .way config files to work properly by staying in sync with the server qc)
768 // otherwise we execute them on client frames
769 if (sv.active ? sv_timer > 0 : cl_timer > 0)
771 // process console commands
772 // R_TimeReport("preconsole");
773 CL_VM_PreventInformationLeaks();
775 // R_TimeReport("console");
778 //Con_Printf("%6.0f %6.0f\n", cl_timer * 1000000.0, sv_timer * 1000000.0);
780 // if the accumulators haven't become positive yet, wait a while
781 if (cls.state == ca_dedicated)
782 wait = sv_timer * -1000000.0;
783 else if (!sv.active || svs.threaded)
784 wait = cl_timer * -1000000.0;
786 wait = max(cl_timer, sv_timer) * -1000000.0;
788 if (!cls.timedemo && wait >= 1)
792 if(host_maxwait.value <= 0)
793 wait = min(wait, 1000000.0);
795 wait = min(wait, host_maxwait.value * 1000.0);
797 wait = 1; // because we cast to int
799 time0 = Sys_DirtyTime();
800 if (sv_checkforpacketsduringsleep.integer && !sys_usenoclockbutbenchmark.integer && !svs.threaded)
801 NetConn_SleepMicroseconds((int)wait);
803 Sys_Sleep((int)wait);
804 delta = Sys_DirtyTime() - time0;
805 if (delta < 0 || delta >= 1800) delta = 0;
807 svs.perf_acc_sleeptime += delta;
808 // R_TimeReport("sleep");
812 // limit the frametime steps to no more than 100ms each
818 svs.perf_acc_lost += (sv_timer - 0.1);
824 //-------------------
828 //-------------------
830 // limit the frametime steps to no more than 100ms each
831 if (sv.active && sv_timer > 0 && !svs.threaded)
833 // execute one or more server frames, with an upper limit on how much
834 // execution time to spend on server frames to avoid freezing the game if
835 // the server is overloaded, this execution time limit means the game will
836 // slow down if the server is taking too long.
837 int framecount, framelimit = 1;
838 double advancetime, aborttime = 0;
840 prvm_prog_t *prog = SVVM_prog;
842 // run the world state
843 // don't allow simulation to run too fast or too slow or logic glitches can occur
845 // stop running server frames if the wall time reaches this value
846 if (sys_ticrate.value <= 0)
847 advancetime = sv_timer;
848 else if (cl.islocalgame && !sv_fixedframeratesingleplayer.integer)
850 // synchronize to the client frametime, but no less than 10ms and no more than 100ms
851 advancetime = bound(0.01, cl_timer, 0.1);
855 advancetime = sys_ticrate.value;
856 // listen servers can run multiple server frames per client frame
857 framelimit = cl_maxphysicsframesperserverframe.integer;
858 aborttime = Sys_DirtyTime() + 0.1;
860 if(slowmo.value > 0 && slowmo.value < 1)
861 advancetime = min(advancetime, 0.1 / slowmo.value);
863 advancetime = min(advancetime, 0.1);
867 offset = Sys_DirtyTime() - dirtytime;if (offset < 0 || offset >= 1800) offset = 0;
869 ++svs.perf_acc_offset_samples;
870 svs.perf_acc_offset += offset;
871 svs.perf_acc_offset_squared += offset * offset;
872 if(svs.perf_acc_offset_max < offset)
873 svs.perf_acc_offset_max = offset;
876 // only advance time if not paused
877 // the game also pauses in singleplayer when menu or console is used
878 sv.frametime = advancetime * slowmo.value;
879 if (host_framerate.value)
880 sv.frametime = host_framerate.value;
881 if (sv.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive || cl.csqc_paused)))
884 for (framecount = 0;framecount < framelimit && sv_timer > 0;framecount++)
886 sv_timer -= advancetime;
888 // move things around and think unless paused
892 // if this server frame took too long, break out of the loop
893 if (framelimit > 1 && Sys_DirtyTime() >= aborttime)
896 R_TimeReport("serverphysics");
898 // send all messages to the clients
899 SV_SendClientMessages();
901 if (sv.paused == 1 && realtime > sv.pausedstart && sv.pausedstart > 0) {
902 prog->globals.fp[OFS_PARM0] = realtime - sv.pausedstart;
903 PRVM_serverglobalfloat(time) = sv.time;
904 prog->ExecuteProgram(prog, PRVM_serverfunction(SV_PausedTic), "QC function SV_PausedTic is missing");
907 // send an heartbeat if enough time has passed since the last one
908 NetConn_Heartbeat(0);
909 R_TimeReport("servernetwork");
911 else if (!svs.threaded)
913 // don't let r_speeds display jump around
914 R_TimeReport("serverphysics");
915 R_TimeReport("servernetwork");
918 //-------------------
922 //-------------------
924 if (cls.state != ca_dedicated && (cl_timer > 0 || cls.timedemo || ((vid_activewindow ? cl_maxfps : cl_maxidlefps).value < 1)))
927 Collision_Cache_NewFrame();
928 R_TimeReport("collisioncache");
929 // decide the simulation time
930 if (cls.capturevideo.active)
933 if (cls.capturevideo.realtime)
934 clframetime = cl.realframetime = max(cl_timer, 1.0 / cls.capturevideo.framerate);
937 clframetime = 1.0 / cls.capturevideo.framerate;
938 cl.realframetime = max(cl_timer, clframetime);
941 else if (vid_activewindow && cl_maxfps.value >= 1 && !cls.timedemo)
943 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxfps.value);
944 // when running slow, we need to sleep to keep input responsive
945 wait = bound(0, cl_maxfps_alwayssleep.value * 1000, 100000);
947 Sys_Sleep((int)wait);
949 else if (!vid_activewindow && cl_maxidlefps.value >= 1 && !cls.timedemo)
950 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxidlefps.value);
952 clframetime = cl.realframetime = cl_timer;
954 // apply slowmo scaling
955 clframetime *= cl.movevars_timescale;
956 // scale playback speed of demos by slowmo cvar
957 if (cls.demoplayback)
959 clframetime *= slowmo.value;
960 // if demo playback is paused, don't advance time at all
965 // host_framerate overrides all else
966 if (host_framerate.value)
967 clframetime = host_framerate.value;
969 if (cl.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive || cl.csqc_paused)))
973 clframetime = cl.realframetime = cl_timer;
975 // deduct the frame time from the accumulator
976 cl_timer -= cl.realframetime;
978 cl.oldtime = cl.time;
979 cl.time += clframetime;
982 if (host_speeds.integer)
983 time1 = Sys_DirtyTime();
984 R_TimeReport("pre-input");
986 // Collect input into cmd
989 R_TimeReport("input");
991 // check for new packets
992 NetConn_ClientFrame();
994 // read a new frame from a demo if needed
995 CL_ReadDemoMessage();
996 R_TimeReport("clientnetwork");
998 // now that packets have been read, send input to server
1000 R_TimeReport("sendmove");
1002 // update client world (interpolate entities, create trails, etc)
1004 R_TimeReport("lerpworld");
1008 R_TimeReport("client");
1011 R_TimeReport("render");
1013 if (host_speeds.integer)
1014 time2 = Sys_DirtyTime();
1017 if(cl.csqc_usecsqclistener)
1019 S_Update(&cl.csqc_listenermatrix);
1020 cl.csqc_usecsqclistener = false;
1023 S_Update(&r_refdef.view.matrix);
1026 R_TimeReport("audio");
1028 // reset gathering of mouse input
1029 in_mouse_x = in_mouse_y = 0;
1031 if (host_speeds.integer)
1033 pass1 = (int)((time1 - time3)*1000000);
1034 time3 = Sys_DirtyTime();
1035 pass2 = (int)((time2 - time1)*1000000);
1036 pass3 = (int)((time3 - time2)*1000000);
1037 Con_Printf("%6ius total %6ius server %6ius gfx %6ius snd\n",
1038 pass1+pass2+pass3, pass1, pass2, pass3);
1043 Mem_CheckSentinelsGlobal();
1045 if (developer_memorydebug.integer)
1046 Mem_CheckSentinelsGlobal();
1049 // if there is some time remaining from this frame, reset the timers
1055 svs.perf_acc_lost += sv_timer;
1063 //============================================================================
1065 qboolean vid_opened = false;
1066 void Host_StartVideo(void)
1068 if (!vid_opened && cls.state != ca_dedicated)
1071 // make sure we open sockets before opening video because the Windows Firewall "unblock?" dialog can screw up the graphics context on some graphics drivers
1072 NetConn_UpdateSockets();
1078 char engineversion[128];
1080 qboolean sys_nostdout = false;
1082 extern qboolean host_stuffcmdsrun;
1084 static qfile_t *locksession_fh = NULL;
1085 static qboolean locksession_run = false;
1086 static void Host_InitSession(void)
1089 Cvar_RegisterVariable(&sessionid);
1090 Cvar_RegisterVariable(&locksession);
1092 // load the session ID into the read-only cvar
1093 if ((i = COM_CheckParm("-sessionid")) && (i + 1 < com_argc))
1096 if(com_argv[i+1][0] == '.')
1097 Cvar_SetQuick(&sessionid, com_argv[i+1]);
1099 Cvar_SetQuick(&sessionid, va(vabuf, sizeof(vabuf), ".%s", com_argv[i+1]));
1102 void Host_LockSession(void)
1106 locksession_run = true;
1107 if(locksession.integer != 0)
1110 char *p = va(vabuf, sizeof(vabuf), "%slock%s", *fs_userdir ? fs_userdir : fs_basedir, sessionid.string);
1112 locksession_fh = FS_SysOpen(p, "wl", false);
1113 // TODO maybe write the pid into the lockfile, while we are at it? may help server management tools
1116 if(locksession.integer == 2)
1118 Con_Printf("WARNING: session lock %s could not be acquired. Please run with -sessionid and an unique session name. Continuing anyway.\n", p);
1122 Sys_Error("session lock %s could not be acquired. Please run with -sessionid and an unique session name.\n", p);
1127 void Host_UnlockSession(void)
1129 if(!locksession_run)
1131 locksession_run = false;
1135 FS_Close(locksession_fh);
1136 // NOTE: we can NOT unlink the lock here, as doing so would
1137 // create a race condition if another process created it
1138 // between our close and our unlink
1139 locksession_fh = NULL;
1144 ====================
1146 ====================
1148 static void Host_Init (void)
1154 if (COM_CheckParm("-profilegameonly"))
1155 Sys_AllowProfiling(false);
1157 // LordHavoc: quake never seeded the random number generator before... heh
1158 if (COM_CheckParm("-benchmark"))
1159 srand(0); // predictable random sequence for -benchmark
1161 srand((unsigned int)time(NULL));
1163 // FIXME: this is evil, but possibly temporary
1164 // LordHavoc: doesn't seem very temporary...
1165 // LordHavoc: made this a saved cvar
1166 // COMMANDLINEOPTION: Console: -developer enables warnings and other notices (RECOMMENDED for mod developers)
1167 if (COM_CheckParm("-developer"))
1169 developer.value = developer.integer = 1;
1170 developer.string = "1";
1173 if (COM_CheckParm("-developer2") || COM_CheckParm("-developer3"))
1175 developer.value = developer.integer = 1;
1176 developer.string = "1";
1177 developer_extra.value = developer_extra.integer = 1;
1178 developer_extra.string = "1";
1179 developer_insane.value = developer_insane.integer = 1;
1180 developer_insane.string = "1";
1181 developer_memory.value = developer_memory.integer = 1;
1182 developer_memory.string = "1";
1183 developer_memorydebug.value = developer_memorydebug.integer = 1;
1184 developer_memorydebug.string = "1";
1187 if (COM_CheckParm("-developer3"))
1189 gl_paranoid.integer = 1;gl_paranoid.string = "1";
1190 gl_printcheckerror.integer = 1;gl_printcheckerror.string = "1";
1193 // COMMANDLINEOPTION: Console: -nostdout disables text output to the terminal the game was launched from
1194 if (COM_CheckParm("-nostdout"))
1197 // used by everything
1200 // initialize console command/cvar/alias/command execution systems
1203 // initialize memory subsystem cvars/commands
1204 Memory_Init_Commands();
1206 // initialize console and logging and its cvars/commands
1209 // initialize various cvars that could not be initialized earlier
1211 Curl_Init_Commands();
1212 Cmd_Init_Commands();
1213 Sys_Init_Commands();
1214 COM_Init_Commands();
1217 // initialize console window (only used by sys_win.c)
1220 // initialize the self-pack (must be before COM_InitGameType as it may add command line options)
1223 // detect gamemode from commandline options or executable name
1226 // construct a version string for the corner of the console
1228 dpsnprintf (engineversion, sizeof (engineversion), "%s %s %s", gamename, os, buildstring);
1229 Con_Printf("%s\n", engineversion);
1231 // initialize process nice level
1232 Sys_InitProcessNice();
1234 // initialize ixtable
1237 // initialize filesystem (including fs_basedir, fs_gamedir, -game, scr_screenshot_name)
1240 // register the cvars for session locking
1243 // must be after FS_Init
1245 Crypto_Init_Commands();
1255 V_Init(); // some cvars needed by server player physics (cl_rollangle etc)
1256 Host_InitCommands();
1258 Host_ServerOptions();
1262 if (cls.state == ca_dedicated)
1263 Cmd_AddCommand ("disconnect", CL_Disconnect_f, "disconnect from server (or disconnect all clients if running a server)");
1266 Con_DPrintf("Initializing client\n");
1280 // save off current state of aliases, commands and cvars for later restore if FS_GameDir_f is called
1281 // NOTE: menu commands are freed by Cmd_RestoreInitState
1282 Cmd_SaveInitState();
1284 // FIXME: put this into some neat design, but the menu should be allowed to crash
1285 // without crashing the whole game, so this should just be a short-time solution
1287 // here comes the not so critical stuff
1288 if (setjmp(host_abortframe)) {
1292 Host_AddConfigText();
1295 // if stuffcmds wasn't run, then quake.rc is probably missing, use default
1296 if (!host_stuffcmdsrun)
1298 Cbuf_AddText("exec default.cfg\nexec " CONFIGFILENAME "\nexec autoexec.cfg\nstuffcmds\n");
1302 // put up the loading image so the user doesn't stare at a black screen...
1303 SCR_BeginLoadingPlaque(true);
1305 if (cls.state != ca_dedicated)
1310 // check for special benchmark mode
1311 // 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)
1312 i = COM_CheckParm("-benchmark");
1313 if (i && i + 1 < com_argc)
1314 if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1316 Cbuf_AddText(va(vabuf, sizeof(vabuf), "timedemo %s\n", com_argv[i + 1]));
1320 // check for special demo mode
1321 // COMMANDLINEOPTION: Client: -demo <demoname> runs a playdemo and quits
1322 i = COM_CheckParm("-demo");
1323 if (i && i + 1 < com_argc)
1324 if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1326 Cbuf_AddText(va(vabuf, sizeof(vabuf), "playdemo %s\n", com_argv[i + 1]));
1330 // COMMANDLINEOPTION: Client: -capturedemo <demoname> captures a playdemo and quits
1331 i = COM_CheckParm("-capturedemo");
1332 if (i && i + 1 < com_argc)
1333 if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1335 Cbuf_AddText(va(vabuf, sizeof(vabuf), "playdemo %s\ncl_capturevideo 1\n", com_argv[i + 1]));
1339 if (cls.state == ca_dedicated || COM_CheckParm("-listen"))
1340 if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1342 Cbuf_AddText("startmap_dm\n");
1346 if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1348 Cbuf_AddText("togglemenu 1\n");
1352 Con_DPrint("========Initialized=========\n");
1354 //Host_StartVideo();
1356 if (cls.state != ca_dedicated)
1365 FIXME: this is a callback from Sys_Quit and Sys_Error. It would be better
1366 to run quit through here before the final handoff to the sys code.
1369 void Host_Shutdown(void)
1371 static qboolean isdown = false;
1375 Con_Print("recursive shutdown\n");
1378 if (setjmp(host_abortframe))
1380 Con_Print("aborted the quitting frame?!?\n");
1385 // be quiet while shutting down
1388 // end the server thread
1392 // disconnect client from server if active
1395 // shut down local server if active
1396 SV_LockThreadMutex();
1397 Host_ShutdownServer ();
1398 SV_UnlockThreadMutex();
1405 // AK hmm, no PRVM_Shutdown(); yet
1407 CL_Video_Shutdown();
1411 CDAudio_Shutdown ();
1414 NetConn_Shutdown ();
1417 if (cls.state != ca_dedicated)
1419 R_Modules_Shutdown();
1432 Host_UnlockSession();