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", "0.2", "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_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"};
73 cvar_t cl_minfps_qualityscale = {CVAR_SAVE, "cl_minfps_qualityscale", "0.5", "multiplier for quality"};
74 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)"};
75 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"};
76 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"};
78 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"};
79 cvar_t developer_extra = {0, "developer_extra", "0", "prints additional debugging messages, often very verbose!"};
80 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!"};
81 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)"};
82 cvar_t developer_loading = {0, "developer_loading","0", "prints information about files as they are loaded or unloaded successfully"};
83 cvar_t developer_entityparsing = {0, "developer_entityparsing", "0", "prints detailed network entities information each time a packet is received"};
85 cvar_t timestamps = {CVAR_SAVE, "timestamps", "0", "prints timestamps on console messages"};
86 cvar_t timeformat = {CVAR_SAVE, "timeformat", "[%Y-%m-%d %H:%M:%S] ", "time format to use on timestamped console messages"};
88 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 (.)"};
89 cvar_t locksession = {0, "locksession", "0", "Lock the session? 0 = no, 1 = yes and abort on failure, 2 = yes and continue on failure"};
93 Host_AbortCurrentFrame
95 aborts the current host frame and goes on with the next one
98 void Host_AbortCurrentFrame(void)
100 // in case we were previously nice, make us mean again
101 Sys_MakeProcessMean();
103 longjmp (host_abortframe, 1);
110 This shuts down both the client and server
113 void Host_Error (const char *error, ...)
115 static char hosterrorstring1[MAX_INPUTLINE]; // THREAD UNSAFE
116 static char hosterrorstring2[MAX_INPUTLINE]; // THREAD UNSAFE
117 static qboolean hosterror = false;
120 // turn off rcon redirect if it was active when the crash occurred
121 // to prevent loops when it is a networking problem
122 Con_Rcon_Redirect_Abort();
124 va_start (argptr,error);
125 dpvsnprintf (hosterrorstring1,sizeof(hosterrorstring1),error,argptr);
128 Con_Printf("Host_Error: %s\n", hosterrorstring1);
130 // LordHavoc: if crashing very early, or currently shutting down, do
132 if (host_framecount < 3 || host_shuttingdown)
133 Sys_Error ("Host_Error: %s", hosterrorstring1);
136 Sys_Error ("Host_Error: recursively entered (original error was: %s new error is: %s)", hosterrorstring2, hosterrorstring1);
139 strlcpy(hosterrorstring2, hosterrorstring1, sizeof(hosterrorstring2));
141 CL_Parse_DumpPacket();
143 CL_Parse_ErrorCleanUp();
147 // print out where the crash happened, if it was caused by QC (and do a cleanup)
148 PRVM_Crash(SVVM_prog);
149 PRVM_Crash(CLVM_prog);
150 PRVM_Crash(MVM_prog);
152 cl.csqc_loaded = false;
153 Cvar_SetValueQuick(&csqc_progcrc, -1);
154 Cvar_SetValueQuick(&csqc_progsize, -1);
156 SV_LockThreadMutex();
157 Host_ShutdownServer ();
158 SV_UnlockThreadMutex();
160 if (cls.state == ca_dedicated)
161 Sys_Error ("Host_Error: %s",hosterrorstring2); // dedicated servers exit
168 Host_AbortCurrentFrame();
171 static void Host_ServerOptions (void)
178 // COMMANDLINEOPTION: Server: -dedicated [playerlimit] starts a dedicated server (with a command console), default playerlimit is 8
179 // COMMANDLINEOPTION: Server: -listen [playerlimit] starts a multiplayer server with graphical client, like singleplayer but other players can connect, default playerlimit is 8
180 // if no client is in the executable or -dedicated is specified on
181 // commandline, start a dedicated server
182 i = COM_CheckParm ("-dedicated");
183 if (i || !cl_available)
185 cls.state = ca_dedicated;
186 // check for -dedicated specifying how many players
187 if (i && i + 1 < com_argc && atoi (com_argv[i+1]) >= 1)
188 svs.maxclients = atoi (com_argv[i+1]);
189 if (COM_CheckParm ("-listen"))
190 Con_Printf ("Only one of -dedicated or -listen can be specified\n");
191 // default sv_public on for dedicated servers (often hosted by serious administrators), off for listen servers (often hosted by clueless users)
192 Cvar_SetValue("sv_public", 1);
194 else if (cl_available)
196 // client exists and not dedicated, check if -listen is specified
197 cls.state = ca_disconnected;
198 i = COM_CheckParm ("-listen");
201 // default players unless specified
202 if (i + 1 < com_argc && atoi (com_argv[i+1]) >= 1)
203 svs.maxclients = atoi (com_argv[i+1]);
207 // default players in some games, singleplayer in most
208 if (gamemode != GAME_GOODVSBAD2 && gamemode != GAME_NEXUIZ && gamemode != GAME_XONOTIC && gamemode != GAME_BATTLEMECH)
213 svs.maxclients = svs.maxclients_next = bound(1, svs.maxclients, MAX_SCOREBOARD);
215 svs.clients = (client_t *)Mem_Alloc(sv_mempool, sizeof(client_t) * svs.maxclients);
217 if (svs.maxclients > 1 && !deathmatch.integer && !coop.integer)
218 Cvar_SetValueQuick(&deathmatch, 1);
222 =======================
224 ======================
226 void Host_SaveConfig_f(void);
227 void Host_LoadConfig_f(void);
228 extern cvar_t sv_writepicture_quality;
229 extern cvar_t r_texture_jpeg_fastpicmip;
230 static void Host_InitLocal (void)
232 Cmd_AddCommand("saveconfig", Host_SaveConfig_f, "save settings to config.cfg (or a specified filename) immediately (also automatic when quitting)");
233 Cmd_AddCommand("loadconfig", Host_LoadConfig_f, "reset everything and reload configs");
235 Cvar_RegisterVariable (&cl_maxphysicsframesperserverframe);
236 Cvar_RegisterVariable (&host_framerate);
237 Cvar_RegisterVariable (&host_speeds);
238 Cvar_RegisterVariable (&host_maxwait);
239 Cvar_RegisterVariable (&cl_minfps);
240 Cvar_RegisterVariable (&cl_minfps_fade);
241 Cvar_RegisterVariable (&cl_minfps_qualitymax);
242 Cvar_RegisterVariable (&cl_minfps_qualitymin);
243 Cvar_RegisterVariable (&cl_minfps_qualitypower);
244 Cvar_RegisterVariable (&cl_minfps_qualityscale);
245 Cvar_RegisterVariable (&cl_maxfps);
246 Cvar_RegisterVariable (&cl_maxfps_alwayssleep);
247 Cvar_RegisterVariable (&cl_maxidlefps);
249 Cvar_RegisterVariable (&developer);
250 Cvar_RegisterVariable (&developer_extra);
251 Cvar_RegisterVariable (&developer_insane);
252 Cvar_RegisterVariable (&developer_loadfile);
253 Cvar_RegisterVariable (&developer_loading);
254 Cvar_RegisterVariable (&developer_entityparsing);
256 Cvar_RegisterVariable (×tamps);
257 Cvar_RegisterVariable (&timeformat);
259 Cvar_RegisterVariable (&sv_writepicture_quality);
260 Cvar_RegisterVariable (&r_texture_jpeg_fastpicmip);
268 Writes key bindings and archived cvars to config.cfg
271 static void Host_SaveConfig_to(const char *file)
275 // dedicated servers initialize the host but don't parse and set the
277 // LordHavoc: don't save a config if it crashed in startup
278 if (host_framecount >= 3 && cls.state != ca_dedicated && !COM_CheckParm("-benchmark") && !COM_CheckParm("-capturedemo"))
280 f = FS_OpenRealFile(file, "wb", false);
283 Con_Printf("Couldn't write %s.\n", file);
287 Key_WriteBindings (f);
288 Cvar_WriteVariables (f);
293 void Host_SaveConfig(void)
295 Host_SaveConfig_to(CONFIGFILENAME);
297 void Host_SaveConfig_f(void)
299 const char *file = CONFIGFILENAME;
301 if(Cmd_Argc() >= 2) {
303 Con_Printf("Saving to %s\n", file);
306 Host_SaveConfig_to(file);
309 static void Host_AddConfigText(void)
311 // set up the default startmap_sp and startmap_dm aliases (mods can
312 // override these) and then execute the quake.rc startup script
313 if (gamemode == GAME_NEHAHRA)
314 Cbuf_InsertText("alias startmap_sp \"map nehstart\"\nalias startmap_dm \"map nehstart\"\nexec " STARTCONFIGFILENAME "\n");
315 else if (gamemode == GAME_TRANSFUSION)
316 Cbuf_InsertText("alias startmap_sp \"map e1m1\"\n""alias startmap_dm \"map bb1\"\nexec " STARTCONFIGFILENAME "\n");
317 else if (gamemode == GAME_TEU)
318 Cbuf_InsertText("alias startmap_sp \"map start\"\nalias startmap_dm \"map start\"\nexec teu.rc\n");
320 Cbuf_InsertText("alias startmap_sp \"map start\"\nalias startmap_dm \"map start\"\nexec " STARTCONFIGFILENAME "\n");
327 Resets key bindings and cvars to defaults and then reloads scripts
330 void Host_LoadConfig_f(void)
332 // reset all cvars, commands and aliases to init values
333 Cmd_RestoreInitState();
334 // prepend a menu restart command to execute after the config
335 Cbuf_InsertText("\nmenu_restart\n");
336 // reset cvars to their defaults, and then exec startup scripts again
337 Host_AddConfigText();
344 Sends text across to be displayed
345 FIXME: make this just a stuffed echo?
348 void SV_ClientPrint(const char *msg)
350 if (host_client->netconnection)
352 MSG_WriteByte(&host_client->netconnection->message, svc_print);
353 MSG_WriteString(&host_client->netconnection->message, msg);
361 Sends text across to be displayed
362 FIXME: make this just a stuffed echo?
365 void SV_ClientPrintf(const char *fmt, ...)
368 char msg[MAX_INPUTLINE];
370 va_start(argptr,fmt);
371 dpvsnprintf(msg,sizeof(msg),fmt,argptr);
381 Sends text to all active clients
384 void SV_BroadcastPrint(const char *msg)
389 for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
391 if (client->active && client->netconnection)
393 MSG_WriteByte(&client->netconnection->message, svc_print);
394 MSG_WriteString(&client->netconnection->message, msg);
398 if (sv_echobprint.integer && cls.state == ca_dedicated)
406 Sends text to all active clients
409 void SV_BroadcastPrintf(const char *fmt, ...)
412 char msg[MAX_INPUTLINE];
414 va_start(argptr,fmt);
415 dpvsnprintf(msg,sizeof(msg),fmt,argptr);
418 SV_BroadcastPrint(msg);
425 Send text over to the client to be executed
428 void Host_ClientCommands(const char *fmt, ...)
431 char string[MAX_INPUTLINE];
433 if (!host_client->netconnection)
436 va_start(argptr,fmt);
437 dpvsnprintf(string, sizeof(string), fmt, argptr);
440 MSG_WriteByte(&host_client->netconnection->message, svc_stufftext);
441 MSG_WriteString(&host_client->netconnection->message, string);
445 =====================
448 Called when the player is getting totally kicked off the host
449 if (crash = true), don't bother sending signofs
450 =====================
452 void SV_DropClient(qboolean crash)
454 prvm_prog_t *prog = SVVM_prog;
456 Con_Printf("Client \"%s\" dropped\n", host_client->name);
458 SV_StopDemoRecording(host_client);
460 // make sure edict is not corrupt (from a level change for example)
461 host_client->edict = PRVM_EDICT_NUM(host_client - svs.clients + 1);
463 if (host_client->netconnection)
465 // tell the client to be gone
468 // LordHavoc: no opportunity for resending, so use unreliable 3 times
469 unsigned char bufdata[8];
471 memset(&buf, 0, sizeof(buf));
473 buf.maxsize = sizeof(bufdata);
474 MSG_WriteByte(&buf, svc_disconnect);
475 NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, false);
476 NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, false);
477 NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, false);
481 // call qc ClientDisconnect function
482 // LordHavoc: don't call QC if server is dead (avoids recursive
483 // Host_Error in some mods when they run out of edicts)
484 if (host_client->clientconnectcalled && sv.active && host_client->edict)
486 // call the prog function for removing a client
487 // this will set the body to a dead frame, among other things
488 int saveSelf = PRVM_serverglobaledict(self);
489 host_client->clientconnectcalled = false;
490 PRVM_serverglobalfloat(time) = sv.time;
491 PRVM_serverglobaledict(self) = PRVM_EDICT_TO_PROG(host_client->edict);
492 prog->ExecuteProgram(prog, PRVM_serverfunction(ClientDisconnect), "QC function ClientDisconnect is missing");
493 PRVM_serverglobaledict(self) = saveSelf;
496 if (host_client->netconnection)
498 // break the net connection
499 NetConn_Close(host_client->netconnection);
500 host_client->netconnection = NULL;
503 // if a download is active, close it
504 if (host_client->download_file)
506 Con_DPrintf("Download of %s aborted when %s dropped\n", host_client->download_name, host_client->name);
507 FS_Close(host_client->download_file);
508 host_client->download_file = NULL;
509 host_client->download_name[0] = 0;
510 host_client->download_expectedposition = 0;
511 host_client->download_started = false;
514 // remove leaving player from scoreboard
515 host_client->name[0] = 0;
516 host_client->colors = 0;
517 host_client->frags = 0;
518 // send notification to all clients
519 // get number of client manually just to make sure we get it right...
520 i = host_client - svs.clients;
521 MSG_WriteByte (&sv.reliable_datagram, svc_updatename);
522 MSG_WriteByte (&sv.reliable_datagram, i);
523 MSG_WriteString (&sv.reliable_datagram, host_client->name);
524 MSG_WriteByte (&sv.reliable_datagram, svc_updatecolors);
525 MSG_WriteByte (&sv.reliable_datagram, i);
526 MSG_WriteByte (&sv.reliable_datagram, host_client->colors);
527 MSG_WriteByte (&sv.reliable_datagram, svc_updatefrags);
528 MSG_WriteByte (&sv.reliable_datagram, i);
529 MSG_WriteShort (&sv.reliable_datagram, host_client->frags);
531 // free the client now
532 if (host_client->entitydatabase)
533 EntityFrame_FreeDatabase(host_client->entitydatabase);
534 if (host_client->entitydatabase4)
535 EntityFrame4_FreeDatabase(host_client->entitydatabase4);
536 if (host_client->entitydatabase5)
537 EntityFrame5_FreeDatabase(host_client->entitydatabase5);
541 // clear a fields that matter to DP_SV_CLIENTNAME and DP_SV_CLIENTCOLORS, and also frags
542 PRVM_ED_ClearEdict(prog, host_client->edict);
545 // clear the client struct (this sets active to false)
546 memset(host_client, 0, sizeof(*host_client));
548 // update server listing on the master because player count changed
549 // (which the master uses for filtering empty/full servers)
550 NetConn_Heartbeat(1);
554 for (i = 0;i < svs.maxclients;i++)
555 if (svs.clients[i].active && !svs.clients[i].spawned)
557 if (i == svs.maxclients)
559 Con_Printf("Loaded game, everyone rejoined - unpausing\n");
560 sv.paused = sv.loadgame = false; // we're basically done with loading now
569 This only happens at the end of a game, not between levels
572 void Host_ShutdownServer(void)
574 prvm_prog_t *prog = SVVM_prog;
577 Con_DPrintf("Host_ShutdownServer\n");
582 NetConn_Heartbeat(2);
583 NetConn_Heartbeat(2);
585 // make sure all the clients know we're disconnecting
586 World_End(&sv.world);
589 if(PRVM_serverfunction(SV_Shutdown))
591 func_t s = PRVM_serverfunction(SV_Shutdown);
592 PRVM_serverglobalfloat(time) = sv.time;
593 PRVM_serverfunction(SV_Shutdown) = 0; // prevent it from getting called again
594 prog->ExecuteProgram(prog, s,"SV_Shutdown() required");
597 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
598 if (host_client->active)
599 SV_DropClient(false); // server shutdown
601 NetConn_CloseServerPorts();
607 memset(&sv, 0, sizeof(sv));
608 memset(svs.clients, 0, svs.maxclients*sizeof(client_t));
610 cl.islocalgame = false;
614 //============================================================================
618 Host_GetConsoleCommands
620 Add them exactly as if they had been typed at the console
623 static void Host_GetConsoleCommands (void)
629 cmd = Sys_ConsoleInput ();
640 Returns a time report string, for example for
643 const char *Host_TimingReport(char *buf, size_t buflen)
645 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);
652 Runs all active servers
655 static void Host_Init(void);
661 double cl_timer = 0, sv_timer = 0;
662 double clframetime, deltacleantime, olddirtytime, dirtytime;
664 int pass1, pass2, pass3, i;
670 dirtytime = Sys_DirtyTime();
673 if (setjmp(host_abortframe))
675 SCR_ClearLoadingScreen(false);
676 continue; // something bad happened, or the server disconnected
679 olddirtytime = host_dirtytime;
680 dirtytime = Sys_DirtyTime();
681 deltacleantime = dirtytime - olddirtytime;
682 if (deltacleantime < 0)
684 // warn if it's significant
685 if (deltacleantime < -0.01)
686 Con_Printf("Host_Mingled: time stepped backwards (went from %f to %f, difference %f)\n", olddirtytime, dirtytime, deltacleantime);
689 else if (deltacleantime >= 1800)
691 Con_Printf("Host_Mingled: time stepped forward (went from %f to %f, difference %f)\n", olddirtytime, dirtytime, deltacleantime);
694 realtime += deltacleantime;
695 host_dirtytime = dirtytime;
697 cl_timer += deltacleantime;
698 sv_timer += deltacleantime;
702 svs.perf_acc_realtime += deltacleantime;
704 // Look for clients who have spawned
705 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
706 if(host_client->spawned)
707 if(host_client->netconnection)
709 if(i == svs.maxclients)
711 // Nobody is looking? Then we won't do timing...
712 // Instead, reset it to zero
713 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;
715 else if(svs.perf_acc_realtime > 5)
717 svs.perf_cpuload = 1 - svs.perf_acc_sleeptime / svs.perf_acc_realtime;
718 svs.perf_lost = svs.perf_acc_lost / svs.perf_acc_realtime;
719 if(svs.perf_acc_offset_samples > 0)
721 svs.perf_offset_max = svs.perf_acc_offset_max;
722 svs.perf_offset_avg = svs.perf_acc_offset / svs.perf_acc_offset_samples;
723 svs.perf_offset_sdev = sqrt(svs.perf_acc_offset_squared / svs.perf_acc_offset_samples - svs.perf_offset_avg * svs.perf_offset_avg);
725 if(svs.perf_lost > 0 && developer_extra.integer)
726 Con_DPrintf("Server can't keep up: %s\n", Host_TimingReport(vabuf, sizeof(vabuf)));
727 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;
731 if (slowmo.value < 0.00001 && slowmo.value != 0)
732 Cvar_SetValue("slowmo", 0);
733 if (host_framerate.value < 0.00001 && host_framerate.value != 0)
734 Cvar_SetValue("host_framerate", 0);
736 // keep the random time dependent, but not when playing demos/benchmarking
737 if(!*sv_random_seed.string && !cls.demoplayback)
740 // get new key events
741 Key_EventQueue_Unblock();
742 SndSys_SendKeyEvents();
745 NetConn_UpdateSockets();
747 Log_DestBuffer_Flush();
749 // receive packets on each main loop iteration, as the main loop may
750 // be undersleeping due to select() detecting a new packet
751 if (sv.active && !svs.threaded)
752 NetConn_ServerFrame();
756 // check for commands typed to the host
757 Host_GetConsoleCommands();
759 // when a server is running we only execute console commands on server frames
760 // (this mainly allows frikbot .way config files to work properly by staying in sync with the server qc)
761 // otherwise we execute them on client frames
762 if (sv.active ? sv_timer > 0 : cl_timer > 0)
764 // process console commands
765 // R_TimeReport("preconsole");
766 CL_VM_PreventInformationLeaks();
768 // R_TimeReport("console");
771 //Con_Printf("%6.0f %6.0f\n", cl_timer * 1000000.0, sv_timer * 1000000.0);
773 // if the accumulators haven't become positive yet, wait a while
774 if (cls.state == ca_dedicated)
775 wait = sv_timer * -1000000.0;
776 else if (!sv.active || svs.threaded)
777 wait = cl_timer * -1000000.0;
779 wait = max(cl_timer, sv_timer) * -1000000.0;
781 if (!cls.timedemo && wait >= 1)
785 if(host_maxwait.value <= 0)
786 wait = min(wait, 1000000.0);
788 wait = min(wait, host_maxwait.value * 1000.0);
790 wait = 1; // because we cast to int
792 time0 = Sys_DirtyTime();
793 if (sv_checkforpacketsduringsleep.integer && !sys_usenoclockbutbenchmark.integer && !svs.threaded)
794 NetConn_SleepMicroseconds((int)wait);
796 Sys_Sleep((int)wait);
797 delta = Sys_DirtyTime() - time0;
798 if (delta < 0 || delta >= 1800) delta = 0;
800 svs.perf_acc_sleeptime += delta;
801 // R_TimeReport("sleep");
805 // limit the frametime steps to no more than 100ms each
811 svs.perf_acc_lost += (sv_timer - 0.1);
817 //-------------------
821 //-------------------
823 // limit the frametime steps to no more than 100ms each
824 if (sv.active && sv_timer > 0 && !svs.threaded)
826 // execute one or more server frames, with an upper limit on how much
827 // execution time to spend on server frames to avoid freezing the game if
828 // the server is overloaded, this execution time limit means the game will
829 // slow down if the server is taking too long.
830 int framecount, framelimit = 1;
831 double advancetime, aborttime = 0;
833 prvm_prog_t *prog = SVVM_prog;
835 // run the world state
836 // don't allow simulation to run too fast or too slow or logic glitches can occur
838 // stop running server frames if the wall time reaches this value
839 if (sys_ticrate.value <= 0)
840 advancetime = sv_timer;
841 else if (cl.islocalgame && !sv_fixedframeratesingleplayer.integer)
843 // synchronize to the client frametime, but no less than 10ms and no more than 100ms
844 advancetime = bound(0.01, cl_timer, 0.1);
848 advancetime = sys_ticrate.value;
849 // listen servers can run multiple server frames per client frame
850 framelimit = cl_maxphysicsframesperserverframe.integer;
851 aborttime = Sys_DirtyTime() + 0.1;
853 if(slowmo.value > 0 && slowmo.value < 1)
854 advancetime = min(advancetime, 0.1 / slowmo.value);
856 advancetime = min(advancetime, 0.1);
860 offset = Sys_DirtyTime() - dirtytime;if (offset < 0 || offset >= 1800) offset = 0;
862 ++svs.perf_acc_offset_samples;
863 svs.perf_acc_offset += offset;
864 svs.perf_acc_offset_squared += offset * offset;
865 if(svs.perf_acc_offset_max < offset)
866 svs.perf_acc_offset_max = offset;
869 // only advance time if not paused
870 // the game also pauses in singleplayer when menu or console is used
871 sv.frametime = advancetime * slowmo.value;
872 if (host_framerate.value)
873 sv.frametime = host_framerate.value;
874 if (sv.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive || cl.csqc_paused)))
877 for (framecount = 0;framecount < framelimit && sv_timer > 0;framecount++)
879 sv_timer -= advancetime;
881 // move things around and think unless paused
885 // if this server frame took too long, break out of the loop
886 if (framelimit > 1 && Sys_DirtyTime() >= aborttime)
889 R_TimeReport("serverphysics");
891 // send all messages to the clients
892 SV_SendClientMessages();
894 if (sv.paused == 1 && realtime > sv.pausedstart && sv.pausedstart > 0) {
895 prog->globals.generic[OFS_PARM0] = realtime - sv.pausedstart;
896 PRVM_serverglobalfloat(time) = sv.time;
897 prog->ExecuteProgram(prog, PRVM_serverfunction(SV_PausedTic), "QC function SV_PausedTic is missing");
900 // send an heartbeat if enough time has passed since the last one
901 NetConn_Heartbeat(0);
902 R_TimeReport("servernetwork");
904 else if (!svs.threaded)
906 // don't let r_speeds display jump around
907 R_TimeReport("serverphysics");
908 R_TimeReport("servernetwork");
911 //-------------------
915 //-------------------
917 if (cls.state != ca_dedicated && (cl_timer > 0 || cls.timedemo || ((vid_activewindow ? cl_maxfps : cl_maxidlefps).value < 1)))
920 Collision_Cache_NewFrame();
921 R_TimeReport("collisioncache");
922 // decide the simulation time
923 if (cls.capturevideo.active)
926 if (cls.capturevideo.realtime)
927 clframetime = cl.realframetime = max(cl_timer, 1.0 / cls.capturevideo.framerate);
930 clframetime = 1.0 / cls.capturevideo.framerate;
931 cl.realframetime = max(cl_timer, clframetime);
934 else if (vid_activewindow && cl_maxfps.value >= 1 && !cls.timedemo)
936 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxfps.value);
937 // when running slow, we need to sleep to keep input responsive
938 wait = bound(0, cl_maxfps_alwayssleep.value * 1000, 100000);
940 Sys_Sleep((int)wait);
942 else if (!vid_activewindow && cl_maxidlefps.value >= 1 && !cls.timedemo)
943 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxidlefps.value);
945 clframetime = cl.realframetime = cl_timer;
947 // apply slowmo scaling
948 clframetime *= cl.movevars_timescale;
949 // scale playback speed of demos by slowmo cvar
950 if (cls.demoplayback)
952 clframetime *= slowmo.value;
953 // if demo playback is paused, don't advance time at all
958 // host_framerate overrides all else
959 if (host_framerate.value)
960 clframetime = host_framerate.value;
962 if (cl.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive || cl.csqc_paused)))
966 clframetime = cl.realframetime = cl_timer;
968 // deduct the frame time from the accumulator
969 cl_timer -= cl.realframetime;
971 cl.oldtime = cl.time;
972 cl.time += clframetime;
975 if (host_speeds.integer)
976 time1 = Sys_DirtyTime();
977 R_TimeReport("pre-input");
979 // Collect input into cmd
982 R_TimeReport("input");
984 // check for new packets
985 NetConn_ClientFrame();
987 // read a new frame from a demo if needed
988 CL_ReadDemoMessage();
989 R_TimeReport("clientnetwork");
991 // now that packets have been read, send input to server
993 R_TimeReport("sendmove");
995 // update client world (interpolate entities, create trails, etc)
997 R_TimeReport("lerpworld");
1001 R_TimeReport("client");
1004 R_TimeReport("render");
1006 if (host_speeds.integer)
1007 time2 = Sys_DirtyTime();
1010 if(cl.csqc_usecsqclistener)
1012 S_Update(&cl.csqc_listenermatrix);
1013 cl.csqc_usecsqclistener = false;
1016 S_Update(&r_refdef.view.matrix);
1019 R_TimeReport("audio");
1021 // reset gathering of mouse input
1022 in_mouse_x = in_mouse_y = 0;
1024 if (host_speeds.integer)
1026 pass1 = (int)((time1 - time3)*1000000);
1027 time3 = Sys_DirtyTime();
1028 pass2 = (int)((time2 - time1)*1000000);
1029 pass3 = (int)((time3 - time2)*1000000);
1030 Con_Printf("%6ius total %6ius server %6ius gfx %6ius snd\n",
1031 pass1+pass2+pass3, pass1, pass2, pass3);
1036 Mem_CheckSentinelsGlobal();
1038 if (developer_memorydebug.integer)
1039 Mem_CheckSentinelsGlobal();
1042 // if there is some time remaining from this frame, reset the timers
1048 svs.perf_acc_lost += sv_timer;
1056 //============================================================================
1058 qboolean vid_opened = false;
1059 void Host_StartVideo(void)
1061 if (!vid_opened && cls.state != ca_dedicated)
1064 // make sure we open sockets before opening video because the Windows Firewall "unblock?" dialog can screw up the graphics context on some graphics drivers
1065 NetConn_UpdateSockets();
1071 char engineversion[128];
1073 qboolean sys_nostdout = false;
1075 extern qboolean host_stuffcmdsrun;
1077 static qfile_t *locksession_fh = NULL;
1078 static qboolean locksession_run = false;
1079 static void Host_InitSession(void)
1082 Cvar_RegisterVariable(&sessionid);
1083 Cvar_RegisterVariable(&locksession);
1085 // load the session ID into the read-only cvar
1086 if ((i = COM_CheckParm("-sessionid")) && (i + 1 < com_argc))
1089 if(com_argv[i+1][0] == '.')
1090 Cvar_SetQuick(&sessionid, com_argv[i+1]);
1092 Cvar_SetQuick(&sessionid, va(vabuf, sizeof(vabuf), ".%s", com_argv[i+1]));
1095 void Host_LockSession(void)
1099 locksession_run = true;
1100 if(locksession.integer != 0)
1103 locksession_fh = FS_SysOpen(va(vabuf, sizeof(vabuf), "%slock%s", *fs_userdir ? fs_userdir : fs_basedir, sessionid.string), "wl", false);
1104 // TODO maybe write the pid into the lockfile, while we are at it? may help server management tools
1107 if(locksession.integer == 2)
1109 Con_Printf("WARNING: session lock %slock%s could not be acquired. Please run with -sessionid and an unique session name. Continuing anyway.\n", *fs_userdir ? fs_userdir : fs_basedir, sessionid.string);
1113 Sys_Error("session lock %slock%s could not be acquired. Please run with -sessionid and an unique session name.\n", *fs_userdir ? fs_userdir : fs_basedir, sessionid.string);
1118 void Host_UnlockSession(void)
1120 if(!locksession_run)
1122 locksession_run = false;
1126 FS_Close(locksession_fh);
1127 // NOTE: we can NOT unlink the lock here, as doing so would
1128 // create a race condition if another process created it
1129 // between our close and our unlink
1130 locksession_fh = NULL;
1135 ====================
1137 ====================
1139 static void Host_Init (void)
1145 if (COM_CheckParm("-profilegameonly"))
1146 Sys_AllowProfiling(false);
1148 // LordHavoc: quake never seeded the random number generator before... heh
1149 if (COM_CheckParm("-benchmark"))
1150 srand(0); // predictable random sequence for -benchmark
1152 srand((unsigned int)time(NULL));
1154 // FIXME: this is evil, but possibly temporary
1155 // LordHavoc: doesn't seem very temporary...
1156 // LordHavoc: made this a saved cvar
1157 // COMMANDLINEOPTION: Console: -developer enables warnings and other notices (RECOMMENDED for mod developers)
1158 if (COM_CheckParm("-developer"))
1160 developer.value = developer.integer = 1;
1161 developer.string = "1";
1164 if (COM_CheckParm("-developer2") || COM_CheckParm("-developer3"))
1166 developer.value = developer.integer = 1;
1167 developer.string = "1";
1168 developer_extra.value = developer_extra.integer = 1;
1169 developer_extra.string = "1";
1170 developer_insane.value = developer_insane.integer = 1;
1171 developer_insane.string = "1";
1172 developer_memory.value = developer_memory.integer = 1;
1173 developer_memory.string = "1";
1174 developer_memorydebug.value = developer_memorydebug.integer = 1;
1175 developer_memorydebug.string = "1";
1178 if (COM_CheckParm("-developer3"))
1180 gl_paranoid.integer = 1;gl_paranoid.string = "1";
1181 gl_printcheckerror.integer = 1;gl_printcheckerror.string = "1";
1184 // COMMANDLINEOPTION: Console: -nostdout disables text output to the terminal the game was launched from
1185 if (COM_CheckParm("-nostdout"))
1188 // used by everything
1191 // initialize console command/cvar/alias/command execution systems
1194 // initialize memory subsystem cvars/commands
1195 Memory_Init_Commands();
1197 // initialize console and logging and its cvars/commands
1200 // initialize various cvars that could not be initialized earlier
1202 Curl_Init_Commands();
1203 Cmd_Init_Commands();
1204 Sys_Init_Commands();
1205 COM_Init_Commands();
1208 // initialize console window (only used by sys_win.c)
1211 // initialize the self-pack (must be before COM_InitGameType as it may add command line options)
1214 // detect gamemode from commandline options or executable name
1217 // construct a version string for the corner of the console
1219 dpsnprintf (engineversion, sizeof (engineversion), "%s %s %s", gamename, os, buildstring);
1220 Con_Printf("%s\n", engineversion);
1222 // initialize process nice level
1223 Sys_InitProcessNice();
1225 // initialize ixtable
1228 // initialize filesystem (including fs_basedir, fs_gamedir, -game, scr_screenshot_name)
1231 // register the cvars for session locking
1234 // must be after FS_Init
1236 Crypto_Init_Commands();
1246 V_Init(); // some cvars needed by server player physics (cl_rollangle etc)
1247 Host_InitCommands();
1249 Host_ServerOptions();
1253 if (cls.state == ca_dedicated)
1254 Cmd_AddCommand ("disconnect", CL_Disconnect_f, "disconnect from server (or disconnect all clients if running a server)");
1257 Con_DPrintf("Initializing client\n");
1271 // save off current state of aliases, commands and cvars for later restore if FS_GameDir_f is called
1272 // NOTE: menu commands are freed by Cmd_RestoreInitState
1273 Cmd_SaveInitState();
1275 // FIXME: put this into some neat design, but the menu should be allowed to crash
1276 // without crashing the whole game, so this should just be a short-time solution
1278 // here comes the not so critical stuff
1279 if (setjmp(host_abortframe)) {
1283 Host_AddConfigText();
1286 // if stuffcmds wasn't run, then quake.rc is probably missing, use default
1287 if (!host_stuffcmdsrun)
1289 Cbuf_AddText("exec default.cfg\nexec " CONFIGFILENAME "\nexec autoexec.cfg\nstuffcmds\n");
1293 // put up the loading image so the user doesn't stare at a black screen...
1294 SCR_BeginLoadingPlaque();
1296 if (cls.state != ca_dedicated)
1301 // check for special benchmark mode
1302 // 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)
1303 i = COM_CheckParm("-benchmark");
1304 if (i && i + 1 < com_argc)
1305 if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1307 Cbuf_AddText(va(vabuf, sizeof(vabuf), "timedemo %s\n", com_argv[i + 1]));
1311 // check for special demo mode
1312 // COMMANDLINEOPTION: Client: -demo <demoname> runs a playdemo and quits
1313 i = COM_CheckParm("-demo");
1314 if (i && i + 1 < com_argc)
1315 if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1317 Cbuf_AddText(va(vabuf, sizeof(vabuf), "playdemo %s\n", com_argv[i + 1]));
1321 // COMMANDLINEOPTION: Client: -capturedemo <demoname> captures a playdemo and quits
1322 i = COM_CheckParm("-capturedemo");
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\ncl_capturevideo 1\n", com_argv[i + 1]));
1330 if (cls.state == ca_dedicated || COM_CheckParm("-listen"))
1331 if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1333 Cbuf_AddText("startmap_dm\n");
1337 if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1339 Cbuf_AddText("togglemenu\n");
1343 Con_DPrint("========Initialized=========\n");
1345 //Host_StartVideo();
1347 if (cls.state != ca_dedicated)
1356 FIXME: this is a callback from Sys_Quit and Sys_Error. It would be better
1357 to run quit through here before the final handoff to the sys code.
1360 void Host_Shutdown(void)
1362 static qboolean isdown = false;
1366 Con_Print("recursive shutdown\n");
1369 if (setjmp(host_abortframe))
1371 Con_Print("aborted the quitting frame?!?\n");
1376 // be quiet while shutting down
1379 // end the server thread
1383 // disconnect client from server if active
1386 // shut down local server if active
1387 SV_LockThreadMutex();
1388 Host_ShutdownServer ();
1389 SV_UnlockThreadMutex();
1396 // AK hmm, no PRVM_Shutdown(); yet
1398 CL_Video_Shutdown();
1402 CDAudio_Shutdown ();
1405 NetConn_Shutdown ();
1408 if (cls.state != ca_dedicated)
1410 R_Modules_Shutdown();
1423 Host_UnlockSession();