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
32 #include "taskqueue.h"
38 A server can always be started, even if the system started out as a client
41 A client can NOT be started if the system started as a dedicated server.
43 Memory is cleared / released when a server or client begins, not when they end.
47 // how many frames have occurred
48 // (checked by Host_Error and Host_SaveConfig_f)
49 int host_framecount = 0;
50 // LadyHavoc: set when quit is executed
51 qboolean host_shuttingdown = false;
53 // the accumulated mainloop time since application started (with filtering), without any slowmo or clamping
55 // the main loop wall time for this frame
56 double host_dirtytime;
59 client_t *host_client;
61 jmp_buf host_abortframe;
63 // pretend frames take this amount of time (in seconds), 0 = realtime
64 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"};
65 cvar_t cl_maxphysicsframesperserverframe = {0, "cl_maxphysicsframesperserverframe","10", "maximum number of physics frames per server frame"};
66 // shows time used by certain subsystems
67 cvar_t host_speeds = {0, "host_speeds","0", "reports how much time is used in server/graphics/sound"};
68 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."};
69 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"};
70 cvar_t cl_minfps_fade = {CVAR_SAVE, "cl_minfps_fade", "1", "how fast the quality adapts to varying framerate"};
71 cvar_t cl_minfps_qualitymax = {CVAR_SAVE, "cl_minfps_qualitymax", "1", "highest allowed drawdistance multiplier"};
72 cvar_t cl_minfps_qualitymin = {CVAR_SAVE, "cl_minfps_qualitymin", "0.25", "lowest allowed drawdistance multiplier"};
73 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)"};
74 cvar_t cl_minfps_qualityhysteresis = {CVAR_SAVE, "cl_minfps_qualityhysteresis", "0.05", "reduce all quality increments by this to reduce flickering"};
75 cvar_t cl_minfps_qualitystepmax = {CVAR_SAVE, "cl_minfps_qualitystepmax", "0.1", "maximum quality change in a single frame"};
76 cvar_t cl_minfps_force = {0, "cl_minfps_force", "0", "also apply quality reductions in timedemo/capturevideo"};
77 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)"};
78 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"};
79 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"};
81 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"};
82 cvar_t developer_extra = {0, "developer_extra", "0", "prints additional debugging messages, often very verbose!"};
83 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!"};
84 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)"};
85 cvar_t developer_loading = {0, "developer_loading","0", "prints information about files as they are loaded or unloaded successfully"};
86 cvar_t developer_entityparsing = {0, "developer_entityparsing", "0", "prints detailed network entities information each time a packet is received"};
88 cvar_t timestamps = {CVAR_SAVE, "timestamps", "0", "prints timestamps on console messages"};
89 cvar_t timeformat = {CVAR_SAVE, "timeformat", "[%Y-%m-%d %H:%M:%S] ", "time format to use on timestamped console messages"};
91 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 (.)"};
92 cvar_t locksession = {0, "locksession", "0", "Lock the session? 0 = no, 1 = yes and abort on failure, 2 = yes and continue on failure"};
96 Host_AbortCurrentFrame
98 aborts the current host frame and goes on with the next one
101 void Host_AbortCurrentFrame(void) DP_FUNC_NORETURN;
102 void Host_AbortCurrentFrame(void)
104 // in case we were previously nice, make us mean again
105 Sys_MakeProcessMean();
107 longjmp (host_abortframe, 1);
114 This shuts down both the client and server
117 void Host_Error (const char *error, ...)
119 static char hosterrorstring1[MAX_INPUTLINE]; // THREAD UNSAFE
120 static char hosterrorstring2[MAX_INPUTLINE]; // THREAD UNSAFE
121 static qboolean hosterror = false;
124 // turn off rcon redirect if it was active when the crash occurred
125 // to prevent loops when it is a networking problem
126 Con_Rcon_Redirect_Abort();
128 va_start (argptr,error);
129 dpvsnprintf (hosterrorstring1,sizeof(hosterrorstring1),error,argptr);
132 Con_Printf("Host_Error: %s\n", hosterrorstring1);
134 // LadyHavoc: if crashing very early, or currently shutting down, do
136 if (host_framecount < 3 || host_shuttingdown)
137 Sys_Error ("Host_Error: %s", hosterrorstring1);
140 Sys_Error ("Host_Error: recursively entered (original error was: %s new error is: %s)", hosterrorstring2, hosterrorstring1);
143 strlcpy(hosterrorstring2, hosterrorstring1, sizeof(hosterrorstring2));
145 CL_Parse_DumpPacket();
147 CL_Parse_ErrorCleanUp();
151 // print out where the crash happened, if it was caused by QC (and do a cleanup)
152 PRVM_Crash(SVVM_prog);
153 PRVM_Crash(CLVM_prog);
155 PRVM_Crash(MVM_prog);
158 cl.csqc_loaded = false;
159 Cvar_SetValueQuick(&csqc_progcrc, -1);
160 Cvar_SetValueQuick(&csqc_progsize, -1);
162 SV_LockThreadMutex();
163 Host_ShutdownServer ();
164 SV_UnlockThreadMutex();
166 if (cls.state == ca_dedicated)
167 Sys_Error ("Host_Error: %s",hosterrorstring2); // dedicated servers exit
174 Host_AbortCurrentFrame();
177 static void Host_ServerOptions (void)
184 // COMMANDLINEOPTION: Server: -dedicated [playerlimit] starts a dedicated server (with a command console), default playerlimit is 8
185 // COMMANDLINEOPTION: Server: -listen [playerlimit] starts a multiplayer server with graphical client, like singleplayer but other players can connect, default playerlimit is 8
186 // if no client is in the executable or -dedicated is specified on
187 // commandline, start a dedicated server
188 i = COM_CheckParm ("-dedicated");
189 if (i || !cl_available)
191 cls.state = ca_dedicated;
192 // check for -dedicated specifying how many players
193 if (i && i + 1 < com_argc && atoi (com_argv[i+1]) >= 1)
194 svs.maxclients = atoi (com_argv[i+1]);
195 if (COM_CheckParm ("-listen"))
196 Con_Printf ("Only one of -dedicated or -listen can be specified\n");
197 // default sv_public on for dedicated servers (often hosted by serious administrators), off for listen servers (often hosted by clueless users)
198 Cvar_SetValue("sv_public", 1);
200 else if (cl_available)
202 // client exists and not dedicated, check if -listen is specified
203 cls.state = ca_disconnected;
204 i = COM_CheckParm ("-listen");
207 // default players unless specified
208 if (i + 1 < com_argc && atoi (com_argv[i+1]) >= 1)
209 svs.maxclients = atoi (com_argv[i+1]);
213 // default players in some games, singleplayer in most
214 if (gamemode != GAME_GOODVSBAD2 && !IS_NEXUIZ_DERIVED(gamemode) && gamemode != GAME_BATTLEMECH)
219 svs.maxclients = svs.maxclients_next = bound(1, svs.maxclients, MAX_SCOREBOARD);
221 svs.clients = (client_t *)Mem_Alloc(sv_mempool, sizeof(client_t) * svs.maxclients);
223 if (svs.maxclients > 1 && !deathmatch.integer && !coop.integer)
224 Cvar_SetValueQuick(&deathmatch, 1);
228 =======================
230 ======================
232 void Host_SaveConfig_f(void);
233 void Host_LoadConfig_f(void);
234 extern cvar_t sv_writepicture_quality;
235 extern cvar_t r_texture_jpeg_fastpicmip;
236 static void Host_InitLocal (void)
238 Cmd_AddCommand("saveconfig", Host_SaveConfig_f, "save settings to config.cfg (or a specified filename) immediately (also automatic when quitting)");
239 Cmd_AddCommand("loadconfig", Host_LoadConfig_f, "reset everything and reload configs");
241 Cvar_RegisterVariable (&cl_maxphysicsframesperserverframe);
242 Cvar_RegisterVariable (&host_framerate);
243 Cvar_RegisterVariable (&host_speeds);
244 Cvar_RegisterVariable (&host_maxwait);
245 Cvar_RegisterVariable (&cl_minfps);
246 Cvar_RegisterVariable (&cl_minfps_fade);
247 Cvar_RegisterVariable (&cl_minfps_qualitymax);
248 Cvar_RegisterVariable (&cl_minfps_qualitymin);
249 Cvar_RegisterVariable (&cl_minfps_qualitystepmax);
250 Cvar_RegisterVariable (&cl_minfps_qualityhysteresis);
251 Cvar_RegisterVariable (&cl_minfps_qualitymultiply);
252 Cvar_RegisterVariable (&cl_minfps_force);
253 Cvar_RegisterVariable (&cl_maxfps);
254 Cvar_RegisterVariable (&cl_maxfps_alwayssleep);
255 Cvar_RegisterVariable (&cl_maxidlefps);
257 Cvar_RegisterVariable (&developer);
258 Cvar_RegisterVariable (&developer_extra);
259 Cvar_RegisterVariable (&developer_insane);
260 Cvar_RegisterVariable (&developer_loadfile);
261 Cvar_RegisterVariable (&developer_loading);
262 Cvar_RegisterVariable (&developer_entityparsing);
264 Cvar_RegisterVariable (×tamps);
265 Cvar_RegisterVariable (&timeformat);
267 Cvar_RegisterVariable (&sv_writepicture_quality);
268 Cvar_RegisterVariable (&r_texture_jpeg_fastpicmip);
276 Writes key bindings and archived cvars to config.cfg
279 static void Host_SaveConfig_to(const char *file)
283 // dedicated servers initialize the host but don't parse and set the
285 // LadyHavoc: don't save a config if it crashed in startup
286 if (host_framecount >= 3 && cls.state != ca_dedicated && !COM_CheckParm("-benchmark") && !COM_CheckParm("-capturedemo"))
288 f = FS_OpenRealFile(file, "wb", false);
291 Con_Printf("Couldn't write %s.\n", file);
295 Key_WriteBindings (f);
296 Cvar_WriteVariables (f);
301 void Host_SaveConfig(void)
303 Host_SaveConfig_to(CONFIGFILENAME);
305 void Host_SaveConfig_f(void)
307 const char *file = CONFIGFILENAME;
309 if(Cmd_Argc() >= 2) {
311 Con_Printf("Saving to %s\n", file);
314 Host_SaveConfig_to(file);
317 static void Host_AddConfigText(void)
319 // set up the default startmap_sp and startmap_dm aliases (mods can
320 // override these) and then execute the quake.rc startup script
321 if (gamemode == GAME_NEHAHRA)
322 Cbuf_InsertText("alias startmap_sp \"map nehstart\"\nalias startmap_dm \"map nehstart\"\nexec " STARTCONFIGFILENAME "\n");
323 else if (gamemode == GAME_TRANSFUSION)
324 Cbuf_InsertText("alias startmap_sp \"map e1m1\"\n""alias startmap_dm \"map bb1\"\nexec " STARTCONFIGFILENAME "\n");
325 else if (gamemode == GAME_TEU)
326 Cbuf_InsertText("alias startmap_sp \"map start\"\nalias startmap_dm \"map start\"\nexec teu.rc\n");
328 Cbuf_InsertText("alias startmap_sp \"map start\"\nalias startmap_dm \"map start\"\nexec " STARTCONFIGFILENAME "\n");
335 Resets key bindings and cvars to defaults and then reloads scripts
338 void Host_LoadConfig_f(void)
340 // reset all cvars, commands and aliases to init values
341 Cmd_RestoreInitState();
343 // prepend a menu restart command to execute after the config
344 Cbuf_InsertText("\nmenu_restart\n");
346 // reset cvars to their defaults, and then exec startup scripts again
347 Host_AddConfigText();
354 Sends text across to be displayed
355 FIXME: make this just a stuffed echo?
358 void SV_ClientPrint(const char *msg)
360 if (host_client->netconnection)
362 MSG_WriteByte(&host_client->netconnection->message, svc_print);
363 MSG_WriteString(&host_client->netconnection->message, msg);
371 Sends text across to be displayed
372 FIXME: make this just a stuffed echo?
375 void SV_ClientPrintf(const char *fmt, ...)
378 char msg[MAX_INPUTLINE];
380 va_start(argptr,fmt);
381 dpvsnprintf(msg,sizeof(msg),fmt,argptr);
391 Sends text to all active clients
394 void SV_BroadcastPrint(const char *msg)
399 for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
401 if (client->active && client->netconnection)
403 MSG_WriteByte(&client->netconnection->message, svc_print);
404 MSG_WriteString(&client->netconnection->message, msg);
408 if (sv_echobprint.integer && cls.state == ca_dedicated)
416 Sends text to all active clients
419 void SV_BroadcastPrintf(const char *fmt, ...)
422 char msg[MAX_INPUTLINE];
424 va_start(argptr,fmt);
425 dpvsnprintf(msg,sizeof(msg),fmt,argptr);
428 SV_BroadcastPrint(msg);
435 Send text over to the client to be executed
438 void Host_ClientCommands(const char *fmt, ...)
441 char string[MAX_INPUTLINE];
443 if (!host_client->netconnection)
446 va_start(argptr,fmt);
447 dpvsnprintf(string, sizeof(string), fmt, argptr);
450 MSG_WriteByte(&host_client->netconnection->message, svc_stufftext);
451 MSG_WriteString(&host_client->netconnection->message, string);
455 =====================
458 Called when the player is getting totally kicked off the host
459 if (crash = true), don't bother sending signofs
460 =====================
462 void SV_DropClient(qboolean crash)
464 prvm_prog_t *prog = SVVM_prog;
466 Con_Printf("Client \"%s\" dropped\n", host_client->name);
468 SV_StopDemoRecording(host_client);
470 // make sure edict is not corrupt (from a level change for example)
471 host_client->edict = PRVM_EDICT_NUM(host_client - svs.clients + 1);
473 if (host_client->netconnection)
475 // tell the client to be gone
478 // LadyHavoc: no opportunity for resending, so use unreliable 3 times
479 unsigned char bufdata[8];
481 memset(&buf, 0, sizeof(buf));
483 buf.maxsize = sizeof(bufdata);
484 MSG_WriteByte(&buf, svc_disconnect);
485 NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, 0, false);
486 NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, 0, false);
487 NetConn_SendUnreliableMessage(host_client->netconnection, &buf, sv.protocol, 10000, 0, false);
491 // call qc ClientDisconnect function
492 // LadyHavoc: don't call QC if server is dead (avoids recursive
493 // Host_Error in some mods when they run out of edicts)
494 if (host_client->clientconnectcalled && sv.active && host_client->edict)
496 // call the prog function for removing a client
497 // this will set the body to a dead frame, among other things
498 int saveSelf = PRVM_serverglobaledict(self);
499 host_client->clientconnectcalled = false;
500 PRVM_serverglobalfloat(time) = sv.time;
501 PRVM_serverglobaledict(self) = PRVM_EDICT_TO_PROG(host_client->edict);
502 prog->ExecuteProgram(prog, PRVM_serverfunction(ClientDisconnect), "QC function ClientDisconnect is missing");
503 PRVM_serverglobaledict(self) = saveSelf;
506 if (host_client->netconnection)
508 // break the net connection
509 NetConn_Close(host_client->netconnection);
510 host_client->netconnection = NULL;
513 // if a download is active, close it
514 if (host_client->download_file)
516 Con_DPrintf("Download of %s aborted when %s dropped\n", host_client->download_name, host_client->name);
517 FS_Close(host_client->download_file);
518 host_client->download_file = NULL;
519 host_client->download_name[0] = 0;
520 host_client->download_expectedposition = 0;
521 host_client->download_started = false;
524 // remove leaving player from scoreboard
525 host_client->name[0] = 0;
526 host_client->colors = 0;
527 host_client->frags = 0;
528 // send notification to all clients
529 // get number of client manually just to make sure we get it right...
530 i = host_client - svs.clients;
531 MSG_WriteByte (&sv.reliable_datagram, svc_updatename);
532 MSG_WriteByte (&sv.reliable_datagram, i);
533 MSG_WriteString (&sv.reliable_datagram, host_client->name);
534 MSG_WriteByte (&sv.reliable_datagram, svc_updatecolors);
535 MSG_WriteByte (&sv.reliable_datagram, i);
536 MSG_WriteByte (&sv.reliable_datagram, host_client->colors);
537 MSG_WriteByte (&sv.reliable_datagram, svc_updatefrags);
538 MSG_WriteByte (&sv.reliable_datagram, i);
539 MSG_WriteShort (&sv.reliable_datagram, host_client->frags);
541 // free the client now
542 if (host_client->entitydatabase)
543 EntityFrame_FreeDatabase(host_client->entitydatabase);
544 if (host_client->entitydatabase4)
545 EntityFrame4_FreeDatabase(host_client->entitydatabase4);
546 if (host_client->entitydatabase5)
547 EntityFrame5_FreeDatabase(host_client->entitydatabase5);
551 // clear a fields that matter to DP_SV_CLIENTNAME and DP_SV_CLIENTCOLORS, and also frags
552 PRVM_ED_ClearEdict(prog, host_client->edict);
555 // clear the client struct (this sets active to false)
556 memset(host_client, 0, sizeof(*host_client));
558 // update server listing on the master because player count changed
559 // (which the master uses for filtering empty/full servers)
560 NetConn_Heartbeat(1);
564 for (i = 0;i < svs.maxclients;i++)
565 if (svs.clients[i].active && !svs.clients[i].spawned)
567 if (i == svs.maxclients)
569 Con_Printf("Loaded game, everyone rejoined - unpausing\n");
570 sv.paused = sv.loadgame = false; // we're basically done with loading now
579 This only happens at the end of a game, not between levels
582 void Host_ShutdownServer(void)
584 prvm_prog_t *prog = SVVM_prog;
587 Con_DPrintf("Host_ShutdownServer\n");
592 NetConn_Heartbeat(2);
593 NetConn_Heartbeat(2);
595 // make sure all the clients know we're disconnecting
596 World_End(&sv.world);
599 if(PRVM_serverfunction(SV_Shutdown))
601 func_t s = PRVM_serverfunction(SV_Shutdown);
602 PRVM_serverglobalfloat(time) = sv.time;
603 PRVM_serverfunction(SV_Shutdown) = 0; // prevent it from getting called again
604 prog->ExecuteProgram(prog, s,"SV_Shutdown() required");
607 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
608 if (host_client->active)
609 SV_DropClient(false); // server shutdown
611 NetConn_CloseServerPorts();
617 memset(&sv, 0, sizeof(sv));
618 memset(svs.clients, 0, svs.maxclients*sizeof(client_t));
620 cl.islocalgame = false;
624 //============================================================================
628 Host_GetConsoleCommands
630 Add them exactly as if they had been typed at the console
633 static void Host_GetConsoleCommands (void)
639 cmd = Sys_ConsoleInput ();
650 Returns a time report string, for example for
653 const char *Host_TimingReport(char *buf, size_t buflen)
655 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);
662 Runs all active servers
665 static void Host_Init(void);
671 double cl_timer = 0, sv_timer = 0;
672 double clframetime, deltacleantime, olddirtytime, dirtytime;
674 int pass1, pass2, pass3, i;
681 host_dirtytime = Sys_DirtyTime();
684 if (setjmp(host_abortframe))
686 SCR_ClearLoadingScreen(false);
687 continue; // something bad happened, or the server disconnected
690 olddirtytime = host_dirtytime;
691 dirtytime = Sys_DirtyTime();
692 deltacleantime = dirtytime - olddirtytime;
693 if (deltacleantime < 0)
695 // warn if it's significant
696 if (deltacleantime < -0.01)
697 Con_Printf("Host_Mingled: time stepped backwards (went from %f to %f, difference %f)\n", olddirtytime, dirtytime, deltacleantime);
700 else if (deltacleantime >= 1800)
702 Con_Printf("Host_Mingled: time stepped forward (went from %f to %f, difference %f)\n", olddirtytime, dirtytime, deltacleantime);
705 realtime += deltacleantime;
706 host_dirtytime = dirtytime;
708 cl_timer += deltacleantime;
709 sv_timer += deltacleantime;
713 svs.perf_acc_realtime += deltacleantime;
715 // Look for clients who have spawned
717 for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
718 if(host_client->begun)
719 if(host_client->netconnection)
723 // don't accumulate time for the first 10 seconds of a match
724 // so things can settle
725 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;
727 else if(svs.perf_acc_realtime > 5)
729 svs.perf_cpuload = 1 - svs.perf_acc_sleeptime / svs.perf_acc_realtime;
730 svs.perf_lost = svs.perf_acc_lost / svs.perf_acc_realtime;
731 if(svs.perf_acc_offset_samples > 0)
733 svs.perf_offset_max = svs.perf_acc_offset_max;
734 svs.perf_offset_avg = svs.perf_acc_offset / svs.perf_acc_offset_samples;
735 svs.perf_offset_sdev = sqrt(svs.perf_acc_offset_squared / svs.perf_acc_offset_samples - svs.perf_offset_avg * svs.perf_offset_avg);
737 if(svs.perf_lost > 0 && developer_extra.integer)
738 if(playing) // only complain if anyone is looking
739 Con_DPrintf("Server can't keep up: %s\n", Host_TimingReport(vabuf, sizeof(vabuf)));
740 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;
744 if (slowmo.value < 0.00001 && slowmo.value != 0)
745 Cvar_SetValue("slowmo", 0);
746 if (host_framerate.value < 0.00001 && host_framerate.value != 0)
747 Cvar_SetValue("host_framerate", 0);
749 TaskQueue_Frame(false);
751 // keep the random time dependent, but not when playing demos/benchmarking
752 if(!*sv_random_seed.string && !cls.demoplayback)
755 // get new key events
756 Key_EventQueue_Unblock();
757 SndSys_SendKeyEvents();
760 NetConn_UpdateSockets();
762 Log_DestBuffer_Flush();
764 // receive packets on each main loop iteration, as the main loop may
765 // be undersleeping due to select() detecting a new packet
766 if (sv.active && !svs.threaded)
767 NetConn_ServerFrame();
771 // check for commands typed to the host
772 Host_GetConsoleCommands();
774 // when a server is running we only execute console commands on server frames
775 // (this mainly allows frikbot .way config files to work properly by staying in sync with the server qc)
776 // otherwise we execute them on client frames
777 if (sv.active ? sv_timer > 0 : cl_timer > 0)
779 // process console commands
780 // R_TimeReport("preconsole");
781 CL_VM_PreventInformationLeaks();
783 // R_TimeReport("console");
786 //Con_Printf("%6.0f %6.0f\n", cl_timer * 1000000.0, sv_timer * 1000000.0);
788 // if the accumulators haven't become positive yet, wait a while
789 if (cls.state == ca_dedicated)
790 wait = sv_timer * -1000000.0;
791 else if (!sv.active || svs.threaded)
792 wait = cl_timer * -1000000.0;
794 wait = max(cl_timer, sv_timer) * -1000000.0;
796 if (!cls.timedemo && wait >= 1)
800 if(host_maxwait.value <= 0)
801 wait = min(wait, 1000000.0);
803 wait = min(wait, host_maxwait.value * 1000.0);
805 wait = 1; // because we cast to int
807 time0 = Sys_DirtyTime();
808 if (sv_checkforpacketsduringsleep.integer && !sys_usenoclockbutbenchmark.integer && !svs.threaded) {
809 NetConn_SleepMicroseconds((int)wait);
810 if (cls.state != ca_dedicated)
811 NetConn_ClientFrame(); // helps server browser get good ping values
812 // TODO can we do the same for ServerFrame? Probably not.
815 Sys_Sleep((int)wait);
816 delta = Sys_DirtyTime() - time0;
817 if (delta < 0 || delta >= 1800) delta = 0;
819 svs.perf_acc_sleeptime += delta;
820 // R_TimeReport("sleep");
824 // limit the frametime steps to no more than 100ms each
830 svs.perf_acc_lost += (sv_timer - 0.1);
836 //-------------------
840 //-------------------
842 // limit the frametime steps to no more than 100ms each
843 if (sv.active && sv_timer > 0 && !svs.threaded)
845 // execute one or more server frames, with an upper limit on how much
846 // execution time to spend on server frames to avoid freezing the game if
847 // the server is overloaded, this execution time limit means the game will
848 // slow down if the server is taking too long.
849 int framecount, framelimit = 1;
850 double advancetime, aborttime = 0;
852 prvm_prog_t *prog = SVVM_prog;
854 // run the world state
855 // don't allow simulation to run too fast or too slow or logic glitches can occur
857 // stop running server frames if the wall time reaches this value
858 if (sys_ticrate.value <= 0)
859 advancetime = sv_timer;
860 else if (cl.islocalgame && !sv_fixedframeratesingleplayer.integer)
862 // synchronize to the client frametime, but no less than 10ms and no more than 100ms
863 advancetime = bound(0.01, cl_timer, 0.1);
867 advancetime = sys_ticrate.value;
868 // listen servers can run multiple server frames per client frame
869 framelimit = cl_maxphysicsframesperserverframe.integer;
870 aborttime = Sys_DirtyTime() + 0.1;
872 if(slowmo.value > 0 && slowmo.value < 1)
873 advancetime = min(advancetime, 0.1 / slowmo.value);
875 advancetime = min(advancetime, 0.1);
879 offset = Sys_DirtyTime() - dirtytime;if (offset < 0 || offset >= 1800) offset = 0;
881 ++svs.perf_acc_offset_samples;
882 svs.perf_acc_offset += offset;
883 svs.perf_acc_offset_squared += offset * offset;
884 if(svs.perf_acc_offset_max < offset)
885 svs.perf_acc_offset_max = offset;
888 // only advance time if not paused
889 // the game also pauses in singleplayer when menu or console is used
890 sv.frametime = advancetime * slowmo.value;
891 if (host_framerate.value)
892 sv.frametime = host_framerate.value;
893 if (sv.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive || cl.csqc_paused)))
896 for (framecount = 0;framecount < framelimit && sv_timer > 0;framecount++)
898 sv_timer -= advancetime;
900 // move things around and think unless paused
904 // if this server frame took too long, break out of the loop
905 if (framelimit > 1 && Sys_DirtyTime() >= aborttime)
908 R_TimeReport("serverphysics");
910 // send all messages to the clients
911 SV_SendClientMessages();
913 if (sv.paused == 1 && realtime > sv.pausedstart && sv.pausedstart > 0) {
914 prog->globals.fp[OFS_PARM0] = realtime - sv.pausedstart;
915 PRVM_serverglobalfloat(time) = sv.time;
916 prog->ExecuteProgram(prog, PRVM_serverfunction(SV_PausedTic), "QC function SV_PausedTic is missing");
919 // send an heartbeat if enough time has passed since the last one
920 NetConn_Heartbeat(0);
921 R_TimeReport("servernetwork");
923 else if (!svs.threaded)
925 // don't let r_speeds display jump around
926 R_TimeReport("serverphysics");
927 R_TimeReport("servernetwork");
930 //-------------------
934 //-------------------
936 if (cls.state != ca_dedicated && (cl_timer > 0 || cls.timedemo || ((vid_activewindow ? cl_maxfps : cl_maxidlefps).value < 1)))
939 Collision_Cache_NewFrame();
940 R_TimeReport("photoncache");
941 // decide the simulation time
942 if (cls.capturevideo.active)
945 if (cls.capturevideo.realtime)
946 clframetime = cl.realframetime = max(cl_timer, 1.0 / cls.capturevideo.framerate);
949 clframetime = 1.0 / cls.capturevideo.framerate;
950 cl.realframetime = max(cl_timer, clframetime);
953 else if (vid_activewindow && cl_maxfps.value >= 1 && !cls.timedemo)
955 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxfps.value);
956 // when running slow, we need to sleep to keep input responsive
957 wait = bound(0, cl_maxfps_alwayssleep.value * 1000, 100000);
959 Sys_Sleep((int)wait);
961 else if (!vid_activewindow && cl_maxidlefps.value >= 1 && !cls.timedemo)
962 clframetime = cl.realframetime = max(cl_timer, 1.0 / cl_maxidlefps.value);
964 clframetime = cl.realframetime = cl_timer;
966 // apply slowmo scaling
967 clframetime *= cl.movevars_timescale;
968 // scale playback speed of demos by slowmo cvar
969 if (cls.demoplayback)
971 clframetime *= slowmo.value;
972 // if demo playback is paused, don't advance time at all
978 // host_framerate overrides all else
979 if (host_framerate.value)
980 clframetime = host_framerate.value;
982 if (cl.paused || (cl.islocalgame && (key_dest != key_game || key_consoleactive || cl.csqc_paused)))
987 clframetime = cl.realframetime = cl_timer;
989 // deduct the frame time from the accumulator
990 cl_timer -= cl.realframetime;
992 cl.oldtime = cl.time;
993 cl.time += clframetime;
996 if (host_speeds.integer)
997 time1 = Sys_DirtyTime();
998 R_TimeReport("pre-input");
1000 // Collect input into cmd
1003 R_TimeReport("input");
1005 // check for new packets
1006 NetConn_ClientFrame();
1008 // read a new frame from a demo if needed
1009 CL_ReadDemoMessage();
1010 R_TimeReport("clientnetwork");
1012 // now that packets have been read, send input to server
1014 R_TimeReport("sendmove");
1016 // update client world (interpolate entities, create trails, etc)
1018 R_TimeReport("lerpworld");
1022 R_TimeReport("client");
1025 CL_MeshEntities_Reset();
1026 R_TimeReport("render");
1028 if (host_speeds.integer)
1029 time2 = Sys_DirtyTime();
1032 if(cl.csqc_usecsqclistener)
1034 S_Update(&cl.csqc_listenermatrix);
1035 cl.csqc_usecsqclistener = false;
1038 S_Update(&r_refdef.view.matrix);
1041 R_TimeReport("audio");
1043 // reset gathering of mouse input
1044 in_mouse_x = in_mouse_y = 0;
1046 if (host_speeds.integer)
1048 pass1 = (int)((time1 - time3)*1000000);
1049 time3 = Sys_DirtyTime();
1050 pass2 = (int)((time2 - time1)*1000000);
1051 pass3 = (int)((time3 - time2)*1000000);
1052 Con_Printf("%6ius total %6ius server %6ius gfx %6ius snd\n",
1053 pass1+pass2+pass3, pass1, pass2, pass3);
1058 Mem_CheckSentinelsGlobal();
1060 if (developer_memorydebug.integer)
1061 Mem_CheckSentinelsGlobal();
1064 // if there is some time remaining from this frame, reset the timers
1070 svs.perf_acc_lost += sv_timer;
1078 //============================================================================
1080 qboolean vid_opened = false;
1081 void Host_StartVideo(void)
1083 if (!vid_opened && cls.state != ca_dedicated)
1086 // make sure we open sockets before opening video because the Windows Firewall "unblock?" dialog can screw up the graphics context on some graphics drivers
1087 NetConn_UpdateSockets();
1093 char engineversion[128];
1095 qboolean sys_nostdout = false;
1097 extern qboolean host_stuffcmdsrun;
1099 static qfile_t *locksession_fh = NULL;
1100 static qboolean locksession_run = false;
1101 static void Host_InitSession(void)
1104 Cvar_RegisterVariable(&sessionid);
1105 Cvar_RegisterVariable(&locksession);
1107 // load the session ID into the read-only cvar
1108 if ((i = COM_CheckParm("-sessionid")) && (i + 1 < com_argc))
1111 if(com_argv[i+1][0] == '.')
1112 Cvar_SetQuick(&sessionid, com_argv[i+1]);
1114 Cvar_SetQuick(&sessionid, va(vabuf, sizeof(vabuf), ".%s", com_argv[i+1]));
1117 void Host_LockSession(void)
1121 locksession_run = true;
1122 if(locksession.integer != 0 && !COM_CheckParm("-readonly"))
1125 char *p = va(vabuf, sizeof(vabuf), "%slock%s", *fs_userdir ? fs_userdir : fs_basedir, sessionid.string);
1127 locksession_fh = FS_SysOpen(p, "wl", false);
1128 // TODO maybe write the pid into the lockfile, while we are at it? may help server management tools
1131 if(locksession.integer == 2)
1133 Con_Printf("WARNING: session lock %s could not be acquired. Please run with -sessionid and an unique session name. Continuing anyway.\n", p);
1137 Sys_Error("session lock %s could not be acquired. Please run with -sessionid and an unique session name.\n", p);
1142 void Host_UnlockSession(void)
1144 if(!locksession_run)
1146 locksession_run = false;
1150 FS_Close(locksession_fh);
1151 // NOTE: we can NOT unlink the lock here, as doing so would
1152 // create a race condition if another process created it
1153 // between our close and our unlink
1154 locksession_fh = NULL;
1159 ====================
1161 ====================
1163 static void Host_Init (void)
1169 if (COM_CheckParm("-profilegameonly"))
1170 Sys_AllowProfiling(false);
1172 // LadyHavoc: quake never seeded the random number generator before... heh
1173 if (COM_CheckParm("-benchmark"))
1174 srand(0); // predictable random sequence for -benchmark
1176 srand((unsigned int)time(NULL));
1178 // FIXME: this is evil, but possibly temporary
1179 // LadyHavoc: doesn't seem very temporary...
1180 // LadyHavoc: made this a saved cvar
1181 // COMMANDLINEOPTION: Console: -developer enables warnings and other notices (RECOMMENDED for mod developers)
1182 if (COM_CheckParm("-developer"))
1184 developer.value = developer.integer = 1;
1185 developer.string = "1";
1188 if (COM_CheckParm("-developer2") || COM_CheckParm("-developer3"))
1190 developer.value = developer.integer = 1;
1191 developer.string = "1";
1192 developer_extra.value = developer_extra.integer = 1;
1193 developer_extra.string = "1";
1194 developer_insane.value = developer_insane.integer = 1;
1195 developer_insane.string = "1";
1196 developer_memory.value = developer_memory.integer = 1;
1197 developer_memory.string = "1";
1198 developer_memorydebug.value = developer_memorydebug.integer = 1;
1199 developer_memorydebug.string = "1";
1202 if (COM_CheckParm("-developer3"))
1204 gl_paranoid.integer = 1;gl_paranoid.string = "1";
1205 gl_printcheckerror.integer = 1;gl_printcheckerror.string = "1";
1208 // COMMANDLINEOPTION: Console: -nostdout disables text output to the terminal the game was launched from
1209 if (COM_CheckParm("-nostdout"))
1212 // used by everything
1215 // initialize console command/cvar/alias/command execution systems
1218 // initialize memory subsystem cvars/commands
1219 Memory_Init_Commands();
1221 // initialize console and logging and its cvars/commands
1224 // initialize various cvars that could not be initialized earlier
1226 Curl_Init_Commands();
1227 Cmd_Init_Commands();
1228 Sys_Init_Commands();
1229 COM_Init_Commands();
1232 // initialize console window (only used by sys_win.c)
1235 // initialize the self-pack (must be before COM_InitGameType as it may add command line options)
1238 // detect gamemode from commandline options or executable name
1241 // construct a version string for the corner of the console
1243 dpsnprintf (engineversion, sizeof (engineversion), "%s %s %s", gamename, os, buildstring);
1244 Con_Printf("%s\n", engineversion);
1246 // initialize process nice level
1247 Sys_InitProcessNice();
1249 // initialize ixtable
1252 // initialize filesystem (including fs_basedir, fs_gamedir, -game, scr_screenshot_name)
1255 // register the cvars for session locking
1258 // must be after FS_Init
1260 Crypto_Init_Commands();
1270 V_Init(); // some cvars needed by server player physics (cl_rollangle etc)
1271 Host_InitCommands();
1273 Host_ServerOptions();
1277 if (cls.state == ca_dedicated)
1278 Cmd_AddCommand ("disconnect", CL_Disconnect_f, "disconnect from server (or disconnect all clients if running a server)");
1281 Con_DPrintf("Initializing client\n");
1297 // save off current state of aliases, commands and cvars for later restore if FS_GameDir_f is called
1298 // NOTE: menu commands are freed by Cmd_RestoreInitState
1299 Cmd_SaveInitState();
1301 // FIXME: put this into some neat design, but the menu should be allowed to crash
1302 // without crashing the whole game, so this should just be a short-time solution
1304 // here comes the not so critical stuff
1305 if (setjmp(host_abortframe)) {
1309 Host_AddConfigText();
1312 // if stuffcmds wasn't run, then quake.rc is probably missing, use default
1313 if (!host_stuffcmdsrun)
1315 Cbuf_AddText("exec default.cfg\nexec " CONFIGFILENAME "\nexec autoexec.cfg\nstuffcmds\n");
1319 // put up the loading image so the user doesn't stare at a black screen...
1320 SCR_BeginLoadingPlaque(true);
1323 if (cls.state != ca_dedicated)
1329 // check for special benchmark mode
1330 // 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)
1331 i = COM_CheckParm("-benchmark");
1332 if (i && i + 1 < com_argc)
1333 if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1335 Cbuf_AddText(va(vabuf, sizeof(vabuf), "timedemo %s\n", com_argv[i + 1]));
1339 // check for special demo mode
1340 // COMMANDLINEOPTION: Client: -demo <demoname> runs a playdemo and quits
1341 i = COM_CheckParm("-demo");
1342 if (i && i + 1 < com_argc)
1343 if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1345 Cbuf_AddText(va(vabuf, sizeof(vabuf), "playdemo %s\n", com_argv[i + 1]));
1349 // COMMANDLINEOPTION: Client: -capturedemo <demoname> captures a playdemo and quits
1350 i = COM_CheckParm("-capturedemo");
1351 if (i && i + 1 < com_argc)
1352 if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1354 Cbuf_AddText(va(vabuf, sizeof(vabuf), "playdemo %s\ncl_capturevideo 1\n", com_argv[i + 1]));
1358 if (cls.state == ca_dedicated || COM_CheckParm("-listen"))
1359 if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1361 Cbuf_AddText("startmap_dm\n");
1365 if (!sv.active && !cls.demoplayback && !cls.connect_trying)
1368 Cbuf_AddText("togglemenu 1\n");
1373 Con_DPrint("========Initialized=========\n");
1375 //Host_StartVideo();
1377 if (cls.state != ca_dedicated)
1386 FIXME: this is a callback from Sys_Quit and Sys_Error. It would be better
1387 to run quit through here before the final handoff to the sys code.
1390 void Host_Shutdown(void)
1392 static qboolean isdown = false;
1396 Con_Print("recursive shutdown\n");
1399 if (setjmp(host_abortframe))
1401 Con_Print("aborted the quitting frame?!?\n");
1406 // be quiet while shutting down
1409 // end the server thread
1413 // disconnect client from server if active
1416 // shut down local server if active
1417 SV_LockThreadMutex();
1418 Host_ShutdownServer ();
1419 SV_UnlockThreadMutex();
1428 // AK hmm, no PRVM_Shutdown(); yet
1430 CL_Video_Shutdown();
1434 CDAudio_Shutdown ();
1437 NetConn_Shutdown ();
1440 if (cls.state != ca_dedicated)
1442 R_Modules_Shutdown();
1455 Host_UnlockSession();