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
39 A server can always be started, even if the system started out as a client
42 A client can NOT be started if the system started as a dedicated server.
44 Memory is cleared / released when a server or client begins, not when they end.
48 // how many frames have occurred
49 // (checked by Host_Error and Host_SaveConfig_f)
50 int host_framecount = 0;
51 // LordHavoc: set when quit is executed
52 qboolean host_shuttingdown = false;
54 // the accumulated mainloop time since application started (with filtering), without any slowmo or clamping
56 // the main loop wall time for this frame
57 double host_dirtytime;
60 client_t *host_client;
62 jmp_buf host_abortframe;
64 // pretend frames take this amount of time (in seconds), 0 = realtime
65 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"};
66 cvar_t cl_maxphysicsframesperserverframe = {0, "cl_maxphysicsframesperserverframe","10", "maximum number of physics frames per server frame"};
67 // shows time used by certain subsystems
68 cvar_t host_speeds = {0, "host_speeds","0", "reports how much time is used in server/graphics/sound"};
69 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."};
70 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"};
71 cvar_t cl_minfps_fade = {CVAR_SAVE, "cl_minfps_fade", "1", "how fast the quality adapts to varying framerate"};
72 cvar_t cl_minfps_qualitymax = {CVAR_SAVE, "cl_minfps_qualitymax", "1", "highest allowed drawdistance multiplier"};
73 cvar_t cl_minfps_qualitymin = {CVAR_SAVE, "cl_minfps_qualitymin", "0.25", "lowest allowed drawdistance multiplier"};
74 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)"};
75 cvar_t cl_minfps_qualityhysteresis = {CVAR_SAVE, "cl_minfps_qualityhysteresis", "0.05", "reduce all quality increments by this to reduce flickering"};
76 cvar_t cl_minfps_qualitystepmax = {CVAR_SAVE, "cl_minfps_qualitystepmax", "0.1", "maximum quality change in a single frame"};
77 cvar_t cl_minfps_force = {0, "cl_minfps_force", "0", "also apply quality reductions in timedemo/capturevideo"};
78 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)"};
79 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"};
80 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"};
82 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"};
83 cvar_t developer_extra = {0, "developer_extra", "0", "prints additional debugging messages, often very verbose!"};
84 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!"};
85 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)"};
86 cvar_t developer_loading = {0, "developer_loading","0", "prints information about files as they are loaded or unloaded successfully"};
87 cvar_t developer_entityparsing = {0, "developer_entityparsing", "0", "prints detailed network entities information each time a packet is received"};
89 cvar_t timestamps = {CVAR_SAVE, "timestamps", "0", "prints timestamps on console messages"};
90 cvar_t timeformat = {CVAR_SAVE, "timeformat", "[%Y-%m-%d %H:%M:%S] ", "time format to use on timestamped console messages"};
92 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 (.)"};
93 cvar_t locksession = {0, "locksession", "0", "Lock the session? 0 = no, 1 = yes and abort on failure, 2 = yes and continue on failure"};
97 Host_AbortCurrentFrame
99 aborts the current host frame and goes on with the next one
102 void Host_AbortCurrentFrame(void) DP_FUNC_NORETURN;
103 void Host_AbortCurrentFrame(void)
105 // in case we were previously nice, make us mean again
106 Sys_MakeProcessMean();
108 longjmp (host_abortframe, 1);
115 This shuts down both the client and server
118 void Host_Error (const char *error, ...)
120 static char hosterrorstring1[MAX_INPUTLINE]; // THREAD UNSAFE
121 static char hosterrorstring2[MAX_INPUTLINE]; // THREAD UNSAFE
122 static qboolean hosterror = false;
125 // turn off rcon redirect if it was active when the crash occurred
126 // to prevent loops when it is a networking problem
127 Con_Rcon_Redirect_Abort();
129 va_start (argptr,error);
130 dpvsnprintf (hosterrorstring1,sizeof(hosterrorstring1),error,argptr);
133 Con_Printf("Host_Error: %s\n", hosterrorstring1);
135 // LordHavoc: if crashing very early, or currently shutting down, do
137 if (host_framecount < 3 || host_shuttingdown)
138 Sys_Error ("Host_Error: %s", hosterrorstring1);
141 Sys_Error ("Host_Error: recursively entered (original error was: %s new error is: %s)", hosterrorstring2, hosterrorstring1);
144 strlcpy(hosterrorstring2, hosterrorstring1, sizeof(hosterrorstring2));
146 CL_Parse_DumpPacket();
148 CL_Parse_ErrorCleanUp();
152 // print out where the crash happened, if it was caused by QC (and do a cleanup)
153 PRVM_Crash(SVVM_prog);
154 PRVM_Crash(CLVM_prog);
156 PRVM_Crash(MVM_prog);
159 cl.csqc_loaded = false;
160 Cvar_SetValueQuick(&csqc_progcrc, -1);
161 Cvar_SetValueQuick(&csqc_progsize, -1);
163 SV_LockThreadMutex();
164 Host_ShutdownServer ();
165 SV_UnlockThreadMutex();
167 if (cls.state == ca_dedicated)
168 Sys_Error ("Host_Error: %s",hosterrorstring2); // dedicated servers exit
175 Host_AbortCurrentFrame();
178 static void Host_ServerOptions (void)
185 // COMMANDLINEOPTION: Server: -dedicated [playerlimit] starts a dedicated server (with a command console), default playerlimit is 8
186 // COMMANDLINEOPTION: Server: -listen [playerlimit] starts a multiplayer server with graphical client, like singleplayer but other players can connect, default playerlimit is 8
187 // if no client is in the executable or -dedicated is specified on
188 // commandline, start a dedicated server
189 i = COM_CheckParm ("-dedicated");
190 if (i || !cl_available)
192 cls.state = ca_dedicated;
193 // check for -dedicated specifying how many players
194 if (i && i + 1 < com_argc && atoi (com_argv[i+1]) >= 1)
195 svs.maxclients = atoi (com_argv[i+1]);
196 if (COM_CheckParm ("-listen"))
197 Con_Printf ("Only one of -dedicated or -listen can be specified\n");
198 // default sv_public on for dedicated servers (often hosted by serious administrators), off for listen servers (often hosted by clueless users)
199 Cvar_SetValue("sv_public", 1);
201 else if (cl_available)
203 // client exists and not dedicated, check if -listen is specified
204 cls.state = ca_disconnected;
205 i = COM_CheckParm ("-listen");
208 // default players unless specified
209 if (i + 1 < com_argc && atoi (com_argv[i+1]) >= 1)
210 svs.maxclients = atoi (com_argv[i+1]);
214 // default players in some games, singleplayer in most
215 if (gamemode != GAME_GOODVSBAD2 && !IS_NEXUIZ_DERIVED(gamemode) && gamemode != GAME_BATTLEMECH)
220 svs.maxclients = svs.maxclients_next = bound(1, svs.maxclients, MAX_SCOREBOARD);
222 svs.clients = (client_t *)Mem_Alloc(sv_mempool, sizeof(client_t) * svs.maxclients);
224 if (svs.maxclients > 1 && !deathmatch.integer && !coop.integer)
225 Cvar_SetValueQuick(&deathmatch, 1);
229 =======================
231 ======================
233 void Host_SaveConfig_f(void);
234 void Host_LoadConfig_f(void);
235 extern cvar_t sv_writepicture_quality;
236 extern cvar_t r_texture_jpeg_fastpicmip;
237 static void Host_InitLocal (void)
239 Cmd_AddCommand("saveconfig", Host_SaveConfig_f, "save settings to config.cfg (or a specified filename) immediately (also automatic when quitting)");
240 Cmd_AddCommand("loadconfig", Host_LoadConfig_f, "reset everything and reload configs");
242 Cvar_RegisterVariable (&cl_maxphysicsframesperserverframe);
243 Cvar_RegisterVariable (&host_framerate);
244 Cvar_RegisterVariable (&host_speeds);
245 Cvar_RegisterVariable (&host_maxwait);
246 Cvar_RegisterVariable (&cl_minfps);
247 Cvar_RegisterVariable (&cl_minfps_fade);
248 Cvar_RegisterVariable (&cl_minfps_qualitymax);
249 Cvar_RegisterVariable (&cl_minfps_qualitymin);
250 Cvar_RegisterVariable (&cl_minfps_qualitystepmax);
251 Cvar_RegisterVariable (&cl_minfps_qualityhysteresis);
252 Cvar_RegisterVariable (&cl_minfps_qualitymultiply);
253 Cvar_RegisterVariable (&cl_minfps_force);
254 Cvar_RegisterVariable (&cl_maxfps);
255 Cvar_RegisterVariable (&cl_maxfps_alwayssleep);
256 Cvar_RegisterVariable (&cl_maxidlefps);
258 Cvar_RegisterVariable (&developer);
259 Cvar_RegisterVariable (&developer_extra);
260 Cvar_RegisterVariable (&developer_insane);
261 Cvar_RegisterVariable (&developer_loadfile);
262 Cvar_RegisterVariable (&developer_loading);
263 Cvar_RegisterVariable (&developer_entityparsing);
265 Cvar_RegisterVariable (×tamps);
266 Cvar_RegisterVariable (&timeformat);
268 Cvar_RegisterVariable (&sv_writepicture_quality);
269 Cvar_RegisterVariable (&r_texture_jpeg_fastpicmip);
277 Writes key bindings and archived cvars to config.cfg
280 static void Host_SaveConfig_to(const char *file)
284 // dedicated servers initialize the host but don't parse and set the
286 // LordHavoc: don't save a config if it crashed in startup
287 if (host_framecount >= 3 && cls.state != ca_dedicated && !COM_CheckParm("-benchmark") && !COM_CheckParm("-capturedemo"))
289 f = FS_OpenRealFile(file, "wb", false);
292 Con_Printf("Couldn't write %s.\n", file);
296 Key_WriteBindings (f);
297 Cvar_WriteVariables (f);
302 void Host_SaveConfig(void)
304 Host_SaveConfig_to(CONFIGFILENAME);
306 void Host_SaveConfig_f(void)
308 const char *file = CONFIGFILENAME;
310 if(Cmd_Argc() >= 2) {
312 Con_Printf("Saving to %s\n", file);
315 Host_SaveConfig_to(file);
318 static void Host_AddConfigText(void)
320 // set up the default startmap_sp and startmap_dm aliases (mods can
321 // override these) and then execute the quake.rc startup script
322 if (gamemode == GAME_NEHAHRA)
323 Cbuf_InsertText("alias startmap_sp \"map nehstart\"\nalias startmap_dm \"map nehstart\"\nexec " STARTCONFIGFILENAME "\n");
324 else if (gamemode == GAME_TRANSFUSION)
325 Cbuf_InsertText("alias startmap_sp \"map e1m1\"\n""alias startmap_dm \"map bb1\"\nexec " STARTCONFIGFILENAME "\n");
326 else if (gamemode == GAME_TEU)
327 Cbuf_InsertText("alias startmap_sp \"map start\"\nalias startmap_dm \"map start\"\nexec teu.rc\n");
329 Cbuf_InsertText("alias startmap_sp \"map start\"\nalias startmap_dm \"map start\"\nexec " STARTCONFIGFILENAME "\n");
336 Resets key bindings and cvars to defaults and then reloads scripts
339 void Host_LoadConfig_f(void)
341 // reset all cvars, commands and aliases to init values
342 Cmd_RestoreInitState();
344 // prepend a menu restart command to execute after the config
345 Cbuf_InsertText("\nmenu_restart\n");
347 // reset cvars to their defaults, and then exec startup scripts again
348 Host_AddConfigText();
355 Sends text across to be displayed
356 FIXME: make this just a stuffed echo?
359 void SV_ClientPrint(const char *msg)
361 if (host_client->netconnection)
363 MSG_WriteByte(&host_client->netconnection->message, svc_print);
364 MSG_WriteString(&host_client->netconnection->message, msg);
372 Sends text across to be displayed
373 FIXME: make this just a stuffed echo?
376 void SV_ClientPrintf(const char *fmt, ...)
379 char msg[MAX_INPUTLINE];
381 va_start(argptr,fmt);
382 dpvsnprintf(msg,sizeof(msg),fmt,argptr);
392 Sends text to all active clients
395 void SV_BroadcastPrint(const char *msg)
400 for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
402 if (client->active && client->netconnection)
404 MSG_WriteByte(&client->netconnection->message, svc_print);
405 MSG_WriteString(&client->netconnection->message, msg);
409 if (sv_echobprint.integer && cls.state == ca_dedicated)
417 Sends text to all active clients
420 void SV_BroadcastPrintf(const char *fmt, ...)
423 char msg[MAX_INPUTLINE];
425 va_start(argptr,fmt);
426 dpvsnprintf(msg,sizeof(msg),fmt,argptr);
429 SV_BroadcastPrint(msg);
436 Send text over to the client to be executed
439 void Host_ClientCommands(const char *fmt, ...)
442 char string[MAX_INPUTLINE];
444 if (!host_client->netconnection)
447 va_start(argptr,fmt);
448 dpvsnprintf(string, sizeof(string), fmt, argptr);
451 MSG_WriteByte(&host_client->netconnection->message, svc_stufftext);
452 MSG_WriteString(&host_client->netconnection->message, string);
456 =====================
459 Called when the player is getting totally kicked off the host
460 if (crash = true), don't bother sending signofs
461 =====================
463 void SV_DropClient(qboolean crash)
465 prvm_prog_t *prog = SVVM_prog;
467 Con_Printf("Client \"%s\" dropped\n", host_client->name);
469 SV_StopDemoRecording(host_client);
471 // make sure edict is not corrupt (from a level change for example)
472 host_client->edict = PRVM_EDICT_NUM(host_client - svs.clients + 1);
474 if (host_client->netconnection)
476 // tell the client to be gone
479 // LordHavoc: no opportunity for resending, so use unreliable 3 times
480 unsigned char bufdata[8];
482 memset(&buf, 0, sizeof(buf));
484 buf.maxsize = sizeof(bufdata);
485 MSG_WriteByte(&buf, svc_disconnect);
486 NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, 0, false);
487 NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, 0, false);
488 NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, 0, false);
492 // call qc ClientDisconnect function
493 // LordHavoc: don't call QC if server is dead (avoids recursive
494 // Host_Error in some mods when they run out of edicts)
495 if (host_client->clientconnectcalled && sv.active && host_client->edict)
497 // call the prog function for removing a client
498 // this will set the body to a dead frame, among other things
499 int saveSelf = PRVM_serverglobaledict(self);
500 host_client->clientconnectcalled = false;
501 PRVM_serverglobalfloat(time) = sv.time;
502 PRVM_serverglobaledict(self) = PRVM_EDICT_TO_PROG(host_client->edict);
503 prog->ExecuteProgram(prog, PRVM_serverfunction(ClientDisconnect), "QC function ClientDisconnect is missing");
504 PRVM_serverglobaledict(self) = saveSelf;
507 if (host_client->netconnection)
509 // break the net connection
510 NetConn_Close(host_client->netconnection);
511 host_client->netconnection = NULL;
514 // if a download is active, close it
515 if (host_client->download_file)
517 Con_DPrintf("Download of %s aborted when %s dropped\n", host_client->download_name, host_client->name);
518 FS_Close(host_client->download_file);
519 host_client->download_file = NULL;
520 host_client->download_name[0] = 0;
521 host_client->download_expectedposition = 0;
522 host_client->download_started = false;
525 // remove leaving player from scoreboard
526 host_client->name[0] = 0;
527 host_client->colors = 0;
528 host_client->frags = 0;
529 // send notification to all clients
530 // get number of client manually just to make sure we get it right...
531 i = host_client - svs.clients;
532 MSG_WriteByte (&sv.reliable_datagram, svc_updatename);
533 MSG_WriteByte (&sv.reliable_datagram, i);
534 MSG_WriteString (&sv.reliable_datagram, host_client->name);
535 MSG_WriteByte (&sv.reliable_datagram, svc_updatecolors);
536 MSG_WriteByte (&sv.reliable_datagram, i);
537 MSG_WriteByte (&sv.reliable_datagram, host_client->colors);
538 MSG_WriteByte (&sv.reliable_datagram, svc_updatefrags);
539 MSG_WriteByte (&sv.reliable_datagram, i);
540 MSG_WriteShort (&sv.reliable_datagram, host_client->frags);
542 // free the client now
543 if (host_client->entitydatabase)
544 EntityFrame_FreeDatabase(host_client->entitydatabase);
545 if (host_client->entitydatabase4)
546 EntityFrame4_FreeDatabase(host_client->entitydatabase4);
547 if (host_client->entitydatabase5)
548 EntityFrame5_FreeDatabase(host_client->entitydatabase5);
552 // clear a fields that matter to DP_SV_CLIENTNAME and DP_SV_CLIENTCOLORS, and also frags
553 PRVM_ED_ClearEdict(prog, host_client->edict);
556 // clear the client struct (this sets active to false)
557 memset(host_client, 0, sizeof(*host_client));
559 // update server listing on the master because player count changed
560 // (which the master uses for filtering empty/full servers)
561 NetConn_Heartbeat(1);
565 for (i = 0;i < svs.maxclients;i++)
566 if (svs.clients[i].active && !svs.clients[i].spawned)
568 if (i == svs.maxclients)
570 Con_Printf("Loaded game, everyone rejoined - unpausing\n");
571 sv.paused = sv.loadgame = false; // we're basically done with loading now
580 This only happens at the end of a game, not between levels
583 void Host_ShutdownServer(void)
585 prvm_prog_t *prog = SVVM_prog;
588 Con_DPrintf("Host_ShutdownServer\n");
593 NetConn_Heartbeat(2);
594 NetConn_Heartbeat(2);
596 // make sure all the clients know we're disconnecting
597 World_End(&sv.world);
600 if(PRVM_serverfunction(SV_Shutdown))
602 func_t s = PRVM_serverfunction(SV_Shutdown);
603 PRVM_serverglobalfloat(time) = sv.time;
604 PRVM_serverfunction(SV_Shutdown) = 0; // prevent it from getting called again
605 prog->ExecuteProgram(prog, s,"SV_Shutdown() required");
608 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
609 if (host_client->active)
610 SV_DropClient(false); // server shutdown
612 NetConn_CloseServerPorts();
618 memset(&sv, 0, sizeof(sv));
619 memset(svs.clients, 0, svs.maxclients*sizeof(client_t));
621 cl.islocalgame = false;
625 //============================================================================
629 Host_GetConsoleCommands
631 Add them exactly as if they had been typed at the console
634 static void Host_GetConsoleCommands (void)
640 cmd = Sys_ConsoleInput ();
651 Returns a time report string, for example for
654 const char *Host_TimingReport(char *buf, size_t buflen)
656 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);
663 Runs all active servers
666 static void Host_Init(void);
672 double cl_timer = 0, sv_timer = 0;
673 double clframetime, deltacleantime, olddirtytime, dirtytime;
675 int pass1, pass2, pass3, i;
682 host_dirtytime = Sys_DirtyTime();
685 if (setjmp(host_abortframe))
687 SCR_ClearLoadingScreen(false);
688 continue; // something bad happened, or the server disconnected
691 olddirtytime = host_dirtytime;
692 dirtytime = Sys_DirtyTime();
693 deltacleantime = dirtytime - olddirtytime;
694 if (deltacleantime < 0)
696 // warn if it's significant
697 if (deltacleantime < -0.01)
698 Con_Printf("Host_Mingled: time stepped backwards (went from %f to %f, difference %f)\n", olddirtytime, dirtytime, deltacleantime);
701 else if (deltacleantime >= 1800)
703 Con_Printf("Host_Mingled: time stepped forward (went from %f to %f, difference %f)\n", olddirtytime, dirtytime, deltacleantime);
706 realtime += deltacleantime;
707 host_dirtytime = dirtytime;
709 cl_timer += deltacleantime;
710 sv_timer += deltacleantime;
714 svs.perf_acc_realtime += deltacleantime;
716 // Look for clients who have spawned
718 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
719 if(host_client->begun)
720 if(host_client->netconnection)
724 // don't accumulate time for the first 10 seconds of a match
725 // so things can settle
726 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;
728 else if(svs.perf_acc_realtime > 5)
730 svs.perf_cpuload = 1 - svs.perf_acc_sleeptime / svs.perf_acc_realtime;
731 svs.perf_lost = svs.perf_acc_lost / svs.perf_acc_realtime;
732 if(svs.perf_acc_offset_samples > 0)
734 svs.perf_offset_max = svs.perf_acc_offset_max;
735 svs.perf_offset_avg = svs.perf_acc_offset / svs.perf_acc_offset_samples;
736 svs.perf_offset_sdev = sqrt(svs.perf_acc_offset_squared / svs.perf_acc_offset_samples - svs.perf_offset_avg * svs.perf_offset_avg);
738 if(svs.perf_lost > 0 && developer_extra.integer)
739 if(playing) // only complain if anyone is looking
740 Con_DPrintf("Server can't keep up: %s\n", Host_TimingReport(vabuf, sizeof(vabuf)));
741 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;
745 if (slowmo.value < 0.00001 && slowmo.value != 0)
746 Cvar_SetValue("slowmo", 0);
747 if (host_framerate.value < 0.00001 && host_framerate.value != 0)
748 Cvar_SetValue("host_framerate", 0);
750 // keep the random time dependent, but not when playing demos/benchmarking
751 if(!*sv_random_seed.string && !cls.demoplayback)
754 // get new key events
755 Key_EventQueue_Unblock();
756 SndSys_SendKeyEvents();
759 NetConn_UpdateSockets();
761 Log_DestBuffer_Flush();
763 // receive packets on each main loop iteration, as the main loop may
764 // be undersleeping due to select() detecting a new packet
765 if (sv.active && !svs.threaded)
766 NetConn_ServerFrame();
770 // check for commands typed to the host
771 Host_GetConsoleCommands();
773 // when a server is running we only execute console commands on server frames
774 // (this mainly allows frikbot .way config files to work properly by staying in sync with the server qc)
775 // otherwise we execute them on client frames
776 if (sv.active ? sv_timer > 0 : cl_timer > 0)
778 // process console commands
779 // R_TimeReport("preconsole");
780 CL_VM_PreventInformationLeaks();
782 // R_TimeReport("console");
785 //Con_Printf("%6.0f %6.0f\n", cl_timer * 1000000.0, sv_timer * 1000000.0);
787 // if the accumulators haven't become positive yet, wait a while
788 if (cls.state == ca_dedicated)
789 wait = sv_timer * -1000000.0;
790 else if (!sv.active || svs.threaded)
791 wait = cl_timer * -1000000.0;
793 wait = max(cl_timer, sv_timer) * -1000000.0;
795 if (!cls.timedemo && wait >= 1)
799 if(host_maxwait.value <= 0)
800 wait = min(wait, 1000000.0);
802 wait = min(wait, host_maxwait.value * 1000.0);
804 wait = 1; // because we cast to int
806 time0 = Sys_DirtyTime();
807 if (sv_checkforpacketsduringsleep.integer && !sys_usenoclockbutbenchmark.integer && !svs.threaded) {
808 NetConn_SleepMicroseconds((int)wait);
809 if (cls.state != ca_dedicated)
810 NetConn_ClientFrame(); // helps server browser get good ping values
811 // TODO can we do the same for ServerFrame? Probably not.
814 Sys_Sleep((int)wait);
815 delta = Sys_DirtyTime() - time0;
816 if (delta < 0 || delta >= 1800) delta = 0;
818 svs.perf_acc_sleeptime += delta;
819 // R_TimeReport("sleep");
823 // limit the frametime steps to no more than 100ms each
829 svs.perf_acc_lost += (sv_timer - 0.1);
835 //-------------------
839 //-------------------
841 // limit the frametime steps to no more than 100ms each
842 if (sv.active && sv_timer > 0 && !svs.threaded)
844 // execute one or more server frames, with an upper limit on how much
845 // execution time to spend on server frames to avoid freezing the game if
846 // the server is overloaded, this execution time limit means the game will
847 // slow down if the server is taking too long.
848 int framecount, framelimit = 1;
849 double advancetime, aborttime = 0;
851 prvm_prog_t *prog = SVVM_prog;
853 // run the world state
854 // don't allow simulation to run too fast or too slow or logic glitches can occur
856 // stop running server frames if the wall time reaches this value
857 if (sys_ticrate.value <= 0)
858 advancetime = sv_timer;
859 else if (cl.islocalgame && !sv_fixedframeratesingleplayer.integer)
861 // synchronize to the client frametime, but no less than 10ms and no more than 100ms
862 advancetime = bound(0.01, cl_timer, 0.1);
866 advancetime = sys_ticrate.value;
867 // listen servers can run multiple server frames per client frame
868 framelimit = cl_maxphysicsframesperserverframe.integer;
869 aborttime = Sys_DirtyTime() + 0.1;
871 if(slowmo.value > 0 && slowmo.value < 1)
872 advancetime = min(advancetime, 0.1 / slowmo.value);
874 advancetime = min(advancetime, 0.1);
878 offset = Sys_DirtyTime() - dirtytime;if (offset < 0 || offset >= 1800) offset = 0;
880 ++svs.perf_acc_offset_samples;
881 svs.perf_acc_offset += offset;
882 svs.perf_acc_offset_squared += offset * offset;
883 if(svs.perf_acc_offset_max < offset)
884 svs.perf_acc_offset_max = offset;
887 // only advance time if not paused
888 // the game also pauses in singleplayer when menu or console is used
889 sv.frametime = advancetime * slowmo.value;
890 if (host_framerate.value)
891 sv.frametime = host_framerate.value;
892 if (sv.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive || cl.csqc_paused)))
895 for (framecount = 0;framecount < framelimit && sv_timer > 0;framecount++)
897 sv_timer -= advancetime;
899 // move things around and think unless paused
903 // if this server frame took too long, break out of the loop
904 if (framelimit > 1 && Sys_DirtyTime() >= aborttime)
907 R_TimeReport("serverphysics");
909 // send all messages to the clients
910 SV_SendClientMessages();
912 if (sv.paused == 1 && realtime > sv.pausedstart && sv.pausedstart > 0) {
913 prog->globals.fp[OFS_PARM0] = realtime - sv.pausedstart;
914 PRVM_serverglobalfloat(time) = sv.time;
915 prog->ExecuteProgram(prog, PRVM_serverfunction(SV_PausedTic), "QC function SV_PausedTic is missing");
918 // send an heartbeat if enough time has passed since the last one
919 NetConn_Heartbeat(0);
920 R_TimeReport("servernetwork");
922 else if (!svs.threaded)
924 // don't let r_speeds display jump around
925 R_TimeReport("serverphysics");
926 R_TimeReport("servernetwork");
929 //-------------------
933 //-------------------
935 if (cls.state != ca_dedicated && (cl_timer > 0 || cls.timedemo || ((vid_activewindow ? cl_maxfps : cl_maxidlefps).value < 1)))
938 Collision_Cache_NewFrame();
939 R_TimeReport("photoncache");
940 // decide the simulation time
941 if (cls.capturevideo.active)
944 if (cls.capturevideo.realtime)
945 clframetime = cl.realframetime = max(cl_timer, 1.0 / cls.capturevideo.framerate);
948 clframetime = 1.0 / cls.capturevideo.framerate;
949 cl.realframetime = max(cl_timer, clframetime);
952 else if (vid_activewindow && cl_maxfps.value >= 1 && !cls.timedemo)
954 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxfps.value);
955 // when running slow, we need to sleep to keep input responsive
956 wait = bound(0, cl_maxfps_alwayssleep.value * 1000, 100000);
958 Sys_Sleep((int)wait);
960 else if (!vid_activewindow && cl_maxidlefps.value >= 1 && !cls.timedemo)
961 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxidlefps.value);
963 clframetime = cl.realframetime = cl_timer;
965 // apply slowmo scaling
966 clframetime *= cl.movevars_timescale;
967 // scale playback speed of demos by slowmo cvar
968 if (cls.demoplayback)
970 clframetime *= slowmo.value;
971 // if demo playback is paused, don't advance time at all
977 // host_framerate overrides all else
978 if (host_framerate.value)
979 clframetime = host_framerate.value;
981 if (cl.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive || cl.csqc_paused)))
986 clframetime = cl.realframetime = cl_timer;
988 // deduct the frame time from the accumulator
989 cl_timer -= cl.realframetime;
991 cl.oldtime = cl.time;
992 cl.time += clframetime;
995 if (host_speeds.integer)
996 time1 = Sys_DirtyTime();
997 R_TimeReport("pre-input");
999 // Collect input into cmd
1002 R_TimeReport("input");
1004 // check for new packets
1005 NetConn_ClientFrame();
1007 // read a new frame from a demo if needed
1008 CL_ReadDemoMessage();
1009 R_TimeReport("clientnetwork");
1011 // now that packets have been read, send input to server
1013 R_TimeReport("sendmove");
1015 // update client world (interpolate entities, create trails, etc)
1017 R_TimeReport("lerpworld");
1021 R_TimeReport("client");
1024 CL_MeshEntities_Reset();
1025 R_TimeReport("render");
1027 if (host_speeds.integer)
1028 time2 = Sys_DirtyTime();
1031 if(cl.csqc_usecsqclistener)
1033 S_Update(&cl.csqc_listenermatrix);
1034 cl.csqc_usecsqclistener = false;
1037 S_Update(&r_refdef.view.matrix);
1041 R_TimeReport("audio");
1044 // reset gathering of mouse input
1045 in_mouse_x = in_mouse_y = 0;
1047 if (host_speeds.integer)
1049 pass1 = (int)((time1 - time3)*1000000);
1050 time3 = Sys_DirtyTime();
1051 pass2 = (int)((time2 - time1)*1000000);
1052 pass3 = (int)((time3 - time2)*1000000);
1053 Con_Printf("%6ius total %6ius server %6ius gfx %6ius snd\n",
1054 pass1+pass2+pass3, pass1, pass2, pass3);
1059 Mem_CheckSentinelsGlobal();
1061 if (developer_memorydebug.integer)
1062 Mem_CheckSentinelsGlobal();
1065 // if there is some time remaining from this frame, reset the timers
1071 svs.perf_acc_lost += sv_timer;
1079 //============================================================================
1081 qboolean vid_opened = false;
1082 void Host_StartVideo(void)
1084 if (!vid_opened && cls.state != ca_dedicated)
1087 // make sure we open sockets before opening video because the Windows Firewall "unblock?" dialog can screw up the graphics context on some graphics drivers
1088 NetConn_UpdateSockets();
1096 char engineversion[128];
1098 qboolean sys_nostdout = false;
1100 extern qboolean host_stuffcmdsrun;
1102 static qfile_t *locksession_fh = NULL;
1103 static qboolean locksession_run = false;
1104 static void Host_InitSession(void)
1107 Cvar_RegisterVariable(&sessionid);
1108 Cvar_RegisterVariable(&locksession);
1110 // load the session ID into the read-only cvar
1111 if ((i = COM_CheckParm("-sessionid")) && (i + 1 < com_argc))
1114 if(com_argv[i+1][0] == '.')
1115 Cvar_SetQuick(&sessionid, com_argv[i+1]);
1117 Cvar_SetQuick(&sessionid, va(vabuf, sizeof(vabuf), ".%s", com_argv[i+1]));
1120 void Host_LockSession(void)
1124 locksession_run = true;
1125 if(locksession.integer != 0 && !COM_CheckParm("-readonly"))
1128 char *p = va(vabuf, sizeof(vabuf), "%slock%s", *fs_userdir ? fs_userdir : fs_basedir, sessionid.string);
1130 locksession_fh = FS_SysOpen(p, "wl", false);
1131 // TODO maybe write the pid into the lockfile, while we are at it? may help server management tools
1134 if(locksession.integer == 2)
1136 Con_Printf("WARNING: session lock %s could not be acquired. Please run with -sessionid and an unique session name. Continuing anyway.\n", p);
1140 Sys_Error("session lock %s could not be acquired. Please run with -sessionid and an unique session name.\n", p);
1145 void Host_UnlockSession(void)
1147 if(!locksession_run)
1149 locksession_run = false;
1153 FS_Close(locksession_fh);
1154 // NOTE: we can NOT unlink the lock here, as doing so would
1155 // create a race condition if another process created it
1156 // between our close and our unlink
1157 locksession_fh = NULL;
1162 ====================
1164 ====================
1166 static void Host_Init (void)
1172 if (COM_CheckParm("-profilegameonly"))
1173 Sys_AllowProfiling(false);
1175 // LordHavoc: quake never seeded the random number generator before... heh
1176 if (COM_CheckParm("-benchmark"))
1177 srand(0); // predictable random sequence for -benchmark
1179 srand((unsigned int)time(NULL));
1181 // FIXME: this is evil, but possibly temporary
1182 // LordHavoc: doesn't seem very temporary...
1183 // LordHavoc: made this a saved cvar
1184 // COMMANDLINEOPTION: Console: -developer enables warnings and other notices (RECOMMENDED for mod developers)
1185 if (COM_CheckParm("-developer"))
1187 developer.value = developer.integer = 1;
1188 developer.string = "1";
1191 if (COM_CheckParm("-developer2") || COM_CheckParm("-developer3"))
1193 developer.value = developer.integer = 1;
1194 developer.string = "1";
1195 developer_extra.value = developer_extra.integer = 1;
1196 developer_extra.string = "1";
1197 developer_insane.value = developer_insane.integer = 1;
1198 developer_insane.string = "1";
1199 developer_memory.value = developer_memory.integer = 1;
1200 developer_memory.string = "1";
1201 developer_memorydebug.value = developer_memorydebug.integer = 1;
1202 developer_memorydebug.string = "1";
1205 if (COM_CheckParm("-developer3"))
1207 gl_paranoid.integer = 1;gl_paranoid.string = "1";
1208 gl_printcheckerror.integer = 1;gl_printcheckerror.string = "1";
1211 // COMMANDLINEOPTION: Console: -nostdout disables text output to the terminal the game was launched from
1212 if (COM_CheckParm("-nostdout"))
1215 // used by everything
1218 // initialize console command/cvar/alias/command execution systems
1221 // initialize memory subsystem cvars/commands
1222 Memory_Init_Commands();
1224 // initialize console and logging and its cvars/commands
1227 // initialize various cvars that could not be initialized earlier
1229 Curl_Init_Commands();
1230 Cmd_Init_Commands();
1231 Sys_Init_Commands();
1232 COM_Init_Commands();
1235 // initialize console window (only used by sys_win.c)
1238 // initialize the self-pack (must be before COM_InitGameType as it may add command line options)
1241 // detect gamemode from commandline options or executable name
1244 // construct a version string for the corner of the console
1246 dpsnprintf (engineversion, sizeof (engineversion), "%s %s %s", gamename, os, buildstring);
1247 Con_Printf("%s\n", engineversion);
1249 // initialize process nice level
1250 Sys_InitProcessNice();
1252 // initialize ixtable
1255 // initialize filesystem (including fs_basedir, fs_gamedir, -game, scr_screenshot_name)
1258 // register the cvars for session locking
1261 // must be after FS_Init
1263 Crypto_Init_Commands();
1273 V_Init(); // some cvars needed by server player physics (cl_rollangle etc)
1274 Host_InitCommands();
1276 Host_ServerOptions();
1280 if (cls.state == ca_dedicated)
1281 Cmd_AddCommand ("disconnect", CL_Disconnect_f, "disconnect from server (or disconnect all clients if running a server)");
1284 Con_DPrintf("Initializing client\n");
1302 // save off current state of aliases, commands and cvars for later restore if FS_GameDir_f is called
1303 // NOTE: menu commands are freed by Cmd_RestoreInitState
1304 Cmd_SaveInitState();
1306 // FIXME: put this into some neat design, but the menu should be allowed to crash
1307 // without crashing the whole game, so this should just be a short-time solution
1309 // here comes the not so critical stuff
1310 if (setjmp(host_abortframe)) {
1314 Host_AddConfigText();
1317 // if stuffcmds wasn't run, then quake.rc is probably missing, use default
1318 if (!host_stuffcmdsrun)
1320 Cbuf_AddText("exec default.cfg\nexec " CONFIGFILENAME "\nexec autoexec.cfg\nstuffcmds\n");
1324 // put up the loading image so the user doesn't stare at a black screen...
1325 SCR_BeginLoadingPlaque(true);
1328 if (cls.state != ca_dedicated)
1334 // check for special benchmark mode
1335 // 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)
1336 i = COM_CheckParm("-benchmark");
1337 if (i && i + 1 < com_argc)
1338 if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1340 Cbuf_AddText(va(vabuf, sizeof(vabuf), "timedemo %s\n", com_argv[i + 1]));
1344 // check for special demo mode
1345 // COMMANDLINEOPTION: Client: -demo <demoname> runs a playdemo and quits
1346 i = COM_CheckParm("-demo");
1347 if (i && i + 1 < com_argc)
1348 if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1350 Cbuf_AddText(va(vabuf, sizeof(vabuf), "playdemo %s\n", com_argv[i + 1]));
1354 // COMMANDLINEOPTION: Client: -capturedemo <demoname> captures a playdemo and quits
1355 i = COM_CheckParm("-capturedemo");
1356 if (i && i + 1 < com_argc)
1357 if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1359 Cbuf_AddText(va(vabuf, sizeof(vabuf), "playdemo %s\ncl_capturevideo 1\n", com_argv[i + 1]));
1363 if (cls.state == ca_dedicated || COM_CheckParm("-listen"))
1364 if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1366 Cbuf_AddText("startmap_dm\n");
1370 if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1373 Cbuf_AddText("togglemenu 1\n");
1378 Con_DPrint("========Initialized=========\n");
1380 //Host_StartVideo();
1382 if (cls.state != ca_dedicated)
1391 FIXME: this is a callback from Sys_Quit and Sys_Error. It would be better
1392 to run quit through here before the final handoff to the sys code.
1395 void Host_Shutdown(void)
1397 static qboolean isdown = false;
1401 Con_Print("recursive shutdown\n");
1404 if (setjmp(host_abortframe))
1406 Con_Print("aborted the quitting frame?!?\n");
1411 // be quiet while shutting down
1414 // end the server thread
1418 // disconnect client from server if active
1421 // shut down local server if active
1422 SV_LockThreadMutex();
1423 Host_ShutdownServer ();
1424 SV_UnlockThreadMutex();
1433 // AK hmm, no PRVM_Shutdown(); yet
1435 CL_Video_Shutdown();
1440 CDAudio_Shutdown ();
1444 NetConn_Shutdown ();
1447 if (cls.state != ca_dedicated)
1449 R_Modules_Shutdown();
1462 Host_UnlockSession();