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
27 A server can always be started, even if the system started out as a client
30 A client can NOT be started if the system started as a dedicated server.
32 Memory is cleared / released when a server or client begins, not when they end.
36 quakeparms_t host_parms;
38 qboolean host_initialized; // true if into command execution
39 qboolean host_loopactive = false; // LordHavoc: used to turn Host_Error into Sys_Error if starting up or shutting down
40 qboolean host_shuttingdown = false; // LordHavoc: set when quit is executed
42 double host_frametime;
43 double host_realframetime; // LordHavoc: the real frametime, before slowmo and clamping are applied (used for console scrolling)
44 double realtime; // without any filtering or bounding
45 double oldrealtime; // last frame run
48 int forcedeveloper; // used for -developer commandline parameter, hacky hacky
50 client_t *host_client; // current client
52 jmp_buf host_abortserver;
54 cvar_t host_framerate = {0, "host_framerate","0"}; // set for slow motion
55 cvar_t host_speeds = {0, "host_speeds","0"}; // set for running times
56 cvar_t slowmo = {0, "slowmo", "1.0"}; // LordHavoc: framerate independent slowmo
57 cvar_t host_minfps = {CVAR_SAVE, "host_minfps", "10"}; // LordHavoc: game logic lower cap on framerate (if framerate is below this is, it pretends it is this, so game logic will run normally)
58 cvar_t host_maxfps = {CVAR_SAVE, "host_maxfps", "1000"}; // LordHavoc: framerate upper cap
60 cvar_t sys_ticrate = {CVAR_SAVE, "sys_ticrate","0.05"};
61 cvar_t serverprofile = {0, "serverprofile","0"};
63 cvar_t fraglimit = {CVAR_NOTIFY, "fraglimit","0"};
64 cvar_t timelimit = {CVAR_NOTIFY, "timelimit","0"};
65 cvar_t teamplay = {CVAR_NOTIFY, "teamplay","0"};
67 cvar_t samelevel = {0, "samelevel","0"};
68 cvar_t noexit = {CVAR_NOTIFY, "noexit","0"};
70 cvar_t developer = {0, "developer","0"};
72 cvar_t skill = {0, "skill","1"}; // 0 - 3
73 cvar_t deathmatch = {0, "deathmatch","0"}; // 0, 1, or 2
74 cvar_t coop = {0, "coop","0"}; // 0 or 1
76 cvar_t pausable = {0, "pausable","1"};
78 cvar_t temp1 = {0, "temp1","0"};
80 cvar_t timestamps = {CVAR_SAVE, "timestamps", "0"};
81 cvar_t timeformat = {CVAR_SAVE, "timeformat", "[%b %e %X] "};
88 void Host_EndGame (char *message, ...)
93 va_start (argptr,message);
94 vsprintf (string,message,argptr);
96 Con_DPrintf ("Host_EndGame: %s\n",string);
99 Host_ShutdownServer (false);
101 if (cls.state == ca_dedicated)
102 Sys_Error ("Host_EndGame: %s\n",string); // dedicated servers exit
104 if (cls.demonum != -1)
109 longjmp (host_abortserver, 1);
116 This shuts down both the client and server
119 char hosterrorstring[4096];
120 void Host_Error (char *error, ...)
123 static qboolean inerror = false;
125 // LordHavoc: if first frame has not been shown, or currently shutting
126 // down, do Sys_Error instead
127 if (!host_loopactive || host_shuttingdown)
130 va_start (argptr,error);
131 vsprintf (string,error,argptr);
133 Sys_Error ("%s", string);
139 va_start (argptr,error);
140 vsprintf (string,error,argptr);
142 Sys_Error ("Host_Error: recursively entered (original error was: %s new error is: %s)", hosterrorstring, string);
146 SCR_EndLoadingPlaque (); // reenable screen updates
148 va_start (argptr,error);
149 vsprintf (hosterrorstring,error,argptr);
151 Con_Printf ("Host_Error: %s\n",hosterrorstring);
154 Host_ShutdownServer (false);
156 if (cls.state == ca_dedicated)
157 Sys_Error ("Host_Error: %s\n",hosterrorstring); // dedicated servers exit
164 longjmp (host_abortserver, 1);
167 static mempool_t *clients_mempool;
174 void Host_FindMaxClients (void)
180 i = COM_CheckParm ("-dedicated");
183 cls.state = ca_dedicated;
184 if (i != (com_argc - 1))
186 svs.maxclients = atoi (com_argv[i+1]);
192 cls.state = ca_disconnected;
194 i = COM_CheckParm ("-listen");
197 if (cls.state == ca_dedicated)
198 Sys_Error ("Only one of -dedicated or -listen can be specified");
199 if (i != (com_argc - 1))
200 svs.maxclients = atoi (com_argv[i+1]);
205 // BloodBath doesn't support single player games
206 if (gamemode == GAME_BLOODBATH && svs.maxclients < 4)
209 if (svs.maxclients < 1)
211 else if (svs.maxclients > MAX_SCOREBOARD)
212 svs.maxclients = MAX_SCOREBOARD;
214 svs.maxclientslimit = svs.maxclients;
215 if (svs.maxclientslimit < MAX_SCOREBOARD) // LordHavoc: upped listen mode limit from 4 to MAX_SCOREBOARD
216 svs.maxclientslimit = MAX_SCOREBOARD;
217 if (!clients_mempool)
218 clients_mempool = Mem_AllocPool("clients");
220 Mem_Free(svs.clients);
221 svs.clients = Mem_Alloc(clients_mempool, svs.maxclientslimit*sizeof(client_t));
223 if (svs.maxclients > 1)
224 Cvar_SetValue ("deathmatch", 1.0);
226 Cvar_SetValue ("deathmatch", 0.0);
231 =======================
233 ======================
235 void Host_InitLocal (void)
237 Host_InitCommands ();
239 Cvar_RegisterVariable (&host_framerate);
240 Cvar_RegisterVariable (&host_speeds);
241 Cvar_RegisterVariable (&slowmo);
242 Cvar_RegisterVariable (&host_minfps);
243 Cvar_RegisterVariable (&host_maxfps);
245 Cvar_RegisterVariable (&sys_ticrate);
246 Cvar_RegisterVariable (&serverprofile);
248 Cvar_RegisterVariable (&fraglimit);
249 Cvar_RegisterVariable (&timelimit);
250 Cvar_RegisterVariable (&teamplay);
251 Cvar_RegisterVariable (&samelevel);
252 Cvar_RegisterVariable (&noexit);
253 Cvar_RegisterVariable (&skill);
254 Cvar_RegisterVariable (&developer);
255 if (forcedeveloper) // make it real now that the cvar is registered
256 Cvar_SetValue("developer", 1);
257 Cvar_RegisterVariable (&deathmatch);
258 Cvar_RegisterVariable (&coop);
260 Cvar_RegisterVariable (&pausable);
262 Cvar_RegisterVariable (&temp1);
264 Cvar_RegisterVariable (×tamps);
265 Cvar_RegisterVariable (&timeformat);
267 Host_FindMaxClients ();
273 Host_WriteConfiguration
275 Writes key bindings and archived cvars to config.cfg
278 void Host_WriteConfiguration (void)
282 // dedicated servers initialize the host but don't parse and set the
284 if (host_initialized && cls.state != ca_dedicated)
286 f = Qopen (va("%s/config.cfg",com_gamedir), "w");
289 Con_Printf ("Couldn't write config.cfg.\n");
293 Key_WriteBindings (f);
294 Cvar_WriteVariables (f);
305 Sends text across to be displayed
306 FIXME: make this just a stuffed echo?
309 void SV_ClientPrintf (char *fmt, ...)
314 va_start (argptr,fmt);
315 vsprintf (string, fmt,argptr);
318 MSG_WriteByte (&host_client->message, svc_print);
319 MSG_WriteString (&host_client->message, string);
326 Sends text to all active clients
329 void SV_BroadcastPrintf (char *fmt, ...)
335 va_start (argptr,fmt);
336 vsprintf (string, fmt,argptr);
339 for (i=0 ; i<svs.maxclients ; i++)
340 if (svs.clients[i].active && svs.clients[i].spawned)
342 MSG_WriteByte (&svs.clients[i].message, svc_print);
343 MSG_WriteString (&svs.clients[i].message, string);
351 Send text over to the client to be executed
354 void Host_ClientCommands (char *fmt, ...)
359 va_start (argptr,fmt);
360 vsprintf (string, fmt,argptr);
363 MSG_WriteByte (&host_client->message, svc_stufftext);
364 MSG_WriteString (&host_client->message, string);
368 =====================
371 Called when the player is getting totally kicked off the host
372 if (crash = true), don't bother sending signofs
373 =====================
375 void SV_DropClient (qboolean crash)
383 // send any final messages (don't check for errors)
384 if (NET_CanSendMessage (host_client->netconnection))
386 MSG_WriteByte (&host_client->message, svc_disconnect);
387 NET_SendMessage (host_client->netconnection, &host_client->message);
390 if (sv.active && host_client->edict && host_client->spawned) // LordHavoc: don't call QC if server is dead (avoids recursive Host_Error in some mods when they run out of edicts)
392 // call the prog function for removing a client
393 // this will set the body to a dead frame, among other things
394 saveSelf = pr_global_struct->self;
395 pr_global_struct->self = EDICT_TO_PROG(host_client->edict);
396 PR_ExecuteProgram (pr_global_struct->ClientDisconnect, "QC function ClientDisconnect is missing");
397 pr_global_struct->self = saveSelf;
400 Sys_Printf ("Client %s removed\n",host_client->name);
403 // break the net connection
404 NET_Close (host_client->netconnection);
405 host_client->netconnection = NULL;
407 // free the client (the body stays around)
408 host_client->active = false;
409 host_client->name[0] = 0;
410 host_client->old_frags = -999999;
411 net_activeconnections--;
413 // send notification to all clients
414 for (i=0, client = svs.clients ; i<svs.maxclients ; i++, client++)
418 MSG_WriteByte (&client->message, svc_updatename);
419 MSG_WriteByte (&client->message, host_client - svs.clients);
420 MSG_WriteString (&client->message, "");
421 MSG_WriteByte (&client->message, svc_updatefrags);
422 MSG_WriteByte (&client->message, host_client - svs.clients);
423 MSG_WriteShort (&client->message, 0);
424 MSG_WriteByte (&client->message, svc_updatecolors);
425 MSG_WriteByte (&client->message, host_client - svs.clients);
426 MSG_WriteByte (&client->message, 0);
434 This only happens at the end of a game, not between levels
437 void Host_ShutdownServer(qboolean crash)
450 // stop all client sounds immediately
453 // flush any pending messages - like the score!!!
454 start = Sys_DoubleTime();
458 for (i=0, host_client = svs.clients ; i<svs.maxclients ; i++, host_client++)
460 if (host_client->active && host_client->message.cursize)
462 if (NET_CanSendMessage (host_client->netconnection))
464 NET_SendMessage(host_client->netconnection, &host_client->message);
465 SZ_Clear (&host_client->message);
469 NET_GetMessage(host_client->netconnection);
474 if ((Sys_DoubleTime() - start) > 3.0)
479 // make sure all the clients know we're disconnecting
483 MSG_WriteByte(&buf, svc_disconnect);
484 count = NET_SendToAll(&buf, 5);
486 Con_Printf("Host_ShutdownServer: NET_SendToAll failed for %u clients\n", count);
488 for (i=0, host_client = svs.clients ; i<svs.maxclients ; i++, host_client++)
489 if (host_client->active)
490 SV_DropClient(crash);
495 memset (&sv, 0, sizeof(sv));
496 memset (svs.clients, 0, svs.maxclientslimit*sizeof(client_t));
504 This clears all the memory used by both the client and server, but does
505 not reinitialize anything.
508 void Host_ClearMemory (void)
510 Con_DPrintf ("Clearing memory\n");
514 memset (&sv, 0, sizeof(sv));
515 memset (&cl, 0, sizeof(cl));
519 //============================================================================
525 Returns false if the time is too short to run a frame
528 qboolean Host_FilterTime (double time)
533 if (slowmo.value < 0.0f)
534 Cvar_SetValue("slowmo", 0.0f);
535 if (host_minfps.value < 10.0f)
536 Cvar_SetValue("host_minfps", 10.0f);
537 if (host_maxfps.value < host_minfps.value)
538 Cvar_SetValue("host_maxfps", host_minfps.value);
540 // check if framerate is too high
543 timecap = sys_ticrate.value;
544 if (cls.state == ca_connected)
545 timecap = 1.0 / host_maxfps.value;
547 if ((realtime - oldrealtime) < timecap)
551 // LordHavoc: copy into host_realframetime as well
552 host_realframetime = host_frametime = realtime - oldrealtime;
553 oldrealtime = realtime;
557 // disable time effects
558 cl.frametime = host_frametime;
562 if (host_framerate.value > 0)
563 host_frametime = host_framerate.value;
566 // don't allow really short frames
567 if (host_frametime > (1.0 / host_minfps.value))
568 host_frametime = (1.0 / host_minfps.value);
571 cl.frametime = host_frametime = bound(0, host_frametime * slowmo.value, 0.1f); // LordHavoc: the QC code relies on no less than 10fps
579 Host_GetConsoleCommands
581 Add them exactly as if they had been typed at the console
584 void Host_GetConsoleCommands (void)
590 cmd = Sys_ConsoleInput ();
604 void Host_ServerFrame (void)
606 static double frametimetotal = 0, lastservertime = 0;
607 frametimetotal += host_frametime;
608 // LordHavoc: cap server at sys_ticrate in listen games
609 if (cls.state != ca_dedicated && svs.maxclients > 1 && ((realtime - lastservertime) < sys_ticrate.value))
611 // run the world state
612 if (!sv.paused && (svs.maxclients > 1 || key_dest == key_game) )
613 sv.frametime = pr_global_struct->frametime = frametimetotal;
617 lastservertime = realtime;
618 // pr_global_struct->frametime = host_frametime;
620 // set the time and clear the general datagram
623 // check for new clients
624 SV_CheckForNewClients ();
626 // read client messages
629 // move things around and think
630 // always pause in single player if in console or menus
631 if (!sv.paused && (svs.maxclients > 1 || key_dest == key_game) )
634 // send all messages to the clients
635 SV_SendClientMessages ();
643 Runs all active servers
646 void _Host_Frame (float time)
648 static double time1 = 0;
649 static double time2 = 0;
650 static double time3 = 0;
651 int pass1, pass2, pass3;
653 if (setjmp (host_abortserver) )
654 return; // something bad happened, or the server disconnected
656 // keep the random time dependent
659 // decide the simulation time
660 if (!Host_FilterTime (time))
662 // if time was rejected, don't totally hog the CPU
667 // get new key events
668 Sys_SendKeyEvents ();
670 // allow mice or other external controllers to add commands
673 // process console commands
678 // if running the server locally, make intentions now
682 //-------------------
686 //-------------------
688 // check for commands typed to the host
689 Host_GetConsoleCommands ();
694 //-------------------
698 //-------------------
700 // if running the server remotely, send intentions now after
701 // the incoming messages have been read
705 // fetch results from server
706 if (cls.state == ca_connected)
707 CL_ReadFromServer ();
712 if (host_speeds.integer)
713 time1 = Sys_DoubleTime ();
717 if (host_speeds.integer)
718 time2 = Sys_DoubleTime ();
721 if (cls.signon == SIGNONS)
723 // LordHavoc: this used to use renderer variables (eww)
724 vec3_t forward, right, up;
725 AngleVectors(cl.viewangles, forward, right, up);
726 S_Update (cl_entities[cl.viewentity].render.origin, forward, right, up);
729 S_Update (vec3_origin, vec3_origin, vec3_origin, vec3_origin);
733 if (host_speeds.integer)
735 pass1 = (time1 - time3)*1000000;
736 time3 = Sys_DoubleTime ();
737 pass2 = (time2 - time1)*1000000;
738 pass3 = (time3 - time2)*1000000;
739 Con_Printf ("%6ius total %6ius server %6ius gfx %6ius snd\n",
740 pass1+pass2+pass3, pass1, pass2, pass3);
744 host_loopactive = true;
747 void Host_Frame (float time)
750 static double timetotal;
751 static int timecount;
754 if (!serverprofile.integer)
760 time1 = Sys_DoubleTime ();
762 time2 = Sys_DoubleTime ();
764 timetotal += time2 - time1;
767 if (timecount < 1000)
770 m = timetotal*1000/timecount;
774 for (i=0 ; i<svs.maxclients ; i++)
776 if (svs.clients[i].active)
780 Con_Printf ("serverprofile: %2i clients %2i msec\n", c, m);
783 //============================================================================
785 void Render_Init(void);
786 void QuakeIO_Init(void);
793 void Host_Init (void)
795 // LordHavoc: quake never seeded the random number generator before... heh
798 com_argc = host_parms.argc;
799 com_argv = host_parms.argv;
800 // FIXME: this is evil, but possibly temporary
801 if (COM_CheckParm("-developer"))
803 forcedeveloper = true;
804 developer.integer = 1;
810 Memory_Init_Commands();
817 W_LoadWadFile ("gfx.wad");
827 Con_Printf ("Exe: "__TIME__" "__DATE__"\n");
829 if (cls.state != ca_dedicated)
837 #ifndef _WIN32 // on non win32, mouse comes before video for security reasons
847 #ifdef _WIN32 // on non win32, mouse comes before video for security reasons
852 Cbuf_InsertText ("exec quake.rc\n");
854 host_initialized = true;
856 Sys_Printf ("========Quake Initialized=========\n");
864 FIXME: this is a callback from Sys_Quit and Sys_Error. It would be better
865 to run quit through here before the final handoff to the sys code.
868 void Host_Shutdown(void)
870 static qboolean isdown = false;
874 printf ("recursive shutdown\n");
879 // keep Con_Printf from trying to update the screen
880 // scr_disabled_for_loading = true;
882 Host_WriteConfiguration ();
889 if (cls.state != ca_dedicated)
891 R_Modules_Shutdown();