/* host.c host init Copyright (C) 1996-1997 Id Software, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to: Free Software Foundation, Inc. 59 Temple Place - Suite 330 Boston, MA 02111-1307, USA */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #ifdef HAVE_UNISTD_H # include #endif #include "QF/cbuf.h" #include "QF/dstring.h" #include "QF/cmd.h" #include "QF/cvar.h" #include "QF/dstring.h" #include "QF/gib.h" #include "QF/idparse.h" #include "QF/qargs.h" #include "QF/plugin/console.h" #include "buildnum.h" #include "nq/include/client.h" #include "nq/include/host.h" #include "nq/include/server.h" /* A server can always be started, even if the system started out as a client to a remote system. A client can NOT be started if the system started as a dedicated server. Memory is cleared/released when a server or client begins, not when they end. */ SERVER_PLUGIN_PROTOS static plugin_list_t server_plugin_list[] = { SERVER_PLUGIN_LIST }; bool host_initialized; // true if into command execution quakeparms_t host_parms; cbuf_t *host_cbuf; double host_frametime; double host_time; double realtime; // without any filtering or bounding double oldrealtime; // last frame run double con_frametime; double con_realtime; double oldcon_realtime; int host_framecount; size_t host_hunklevel; int host_in_game; size_t minimum_memory; client_t *host_client; // current client jmp_buf host_abortserver; float host_mem_size; static cvar_t host_mem_size_cvar = { .name = "host_mem_size", .description = "Amount of memory (in MB) to allocate for the " PACKAGE_NAME " heap", .default_value = "40", .flags = CVAR_ROM, .value = { .type = &cexpr_float, .value = &host_mem_size }, }; float host_framerate; static cvar_t host_framerate_cvar = { .name = "host_framerate", .description = "set for slow motion", .default_value = "0", .flags = CVAR_NONE, .value = { .type = &cexpr_float, .value = &host_framerate }, }; int host_speeds; static cvar_t host_speeds_cvar = { .name = "host_speeds", .description = "set for running times", .default_value = "0", .flags = CVAR_NONE, .value = { .type = &cexpr_int, .value = &host_speeds }, }; int max_edicts; static cvar_t max_edicts_cvar = { .name = "max_edicts", .description = "maximum server edicts", .default_value = "1024", .flags = CVAR_NONE, .value = { .type = &cexpr_int, .value = &max_edicts }, }; float sys_ticrate; static cvar_t sys_ticrate_cvar = { .name = "sys_ticrate", .description = "None", .default_value = "0.05", .flags = CVAR_NONE, .value = { .type = &cexpr_float, .value = &sys_ticrate }, }; int serverprofile; static cvar_t serverprofile_cvar = { .name = "serverprofile", .description = "None", .default_value = "0", .flags = CVAR_NONE, .value = { .type = &cexpr_int, .value = &serverprofile }, }; int cl_quakerc; static cvar_t cl_quakerc_cvar = { .name = "cl_quakerc", .description = "exec quake.rc on startup", .default_value = "1", .flags = CVAR_NONE, .value = { .type = &cexpr_int, .value = &cl_quakerc }, }; float fraglimit; static cvar_t fraglimit_cvar = { .name = "fraglimit", .description = "None", .default_value = "0", .flags = CVAR_SERVERINFO, .value = { .type = &cexpr_float, .value = &fraglimit }, }; int timelimit; static cvar_t timelimit_cvar = { .name = "timelimit", .description = "None", .default_value = "0", .flags = CVAR_SERVERINFO, .value = { .type = &cexpr_int, .value = &timelimit }, }; int teamplay; static cvar_t teamplay_cvar = { .name = "teamplay", .description = "None", .default_value = "0", .flags = CVAR_SERVERINFO, .value = { .type = &cexpr_int, .value = &teamplay }, }; float noexit; static cvar_t noexit_cvar = { .name = "noexit", .description = "None", .default_value = "0", .flags = CVAR_SERVERINFO, .value = { .type = &cexpr_float, .value = &noexit }, }; float samelevel; static cvar_t samelevel_cvar = { .name = "samelevel", .description = "None", .default_value = "0", .flags = CVAR_NONE, .value = { .type = &cexpr_float, .value = &samelevel }, }; int skill; static cvar_t skill_cvar = { .name = "skill", .description = "0 - 3", .default_value = "1", .flags = CVAR_NONE, .value = { .type = &cexpr_int, .value = &skill }, }; int coop; static cvar_t coop_cvar = { .name = "coop", .description = "0 or 1", .default_value = "0", .flags = CVAR_NONE, .value = { .type = &cexpr_int, .value = &coop }, }; int deathmatch; static cvar_t deathmatch_cvar = { .name = "deathmatch", .description = "0, 1, or 2", .default_value = "0", .flags = CVAR_NONE, .value = { .type = &cexpr_int, .value = &deathmatch }, }; int pausable; static cvar_t pausable_cvar = { .name = "pausable", .description = "None", .default_value = "1", .flags = CVAR_NONE, .value = { .type = &cexpr_int, .value = &pausable }, }; float temp1; static cvar_t temp1_cvar = { .name = "temp1", .description = "None", .default_value = "0", .flags = CVAR_NONE, .value = { .type = &cexpr_float, .value = &temp1 }, }; int cl_usleep; static cvar_t cl_usleep_cvar = { .name = "cl_usleep", .description = "Turn this on to save cpu when fps limited. May affect frame rate " "adversely depending on local machine/os conditions", .default_value = "1", .flags = CVAR_ARCHIVE, .value = { .type = &cexpr_int, .value = &cl_usleep }, }; void Host_EndGame (const char *message, ...) { static dstring_t *str; va_list argptr; if (!str) str = dstring_new (); va_start (argptr, message); dvsprintf (str, message, argptr); va_end (argptr); Sys_MaskPrintf (SYS_dev, "Host_EndGame: %s\n", str->str); if (sv.active) Host_ShutdownServer (false); if (net_is_dedicated) Sys_Error ("Host_EndGame: %s", str->str); // dedicated servers exit if (cls.demonum != -1) CL_NextDemo (); else CL_Disconnect (); longjmp (host_abortserver, 1); } /* Host_Error This shuts down both the client and server */ void Host_Error (const char *error, ...) { static dstring_t *str; static bool inerror = false; va_list argptr; if (inerror) Sys_Error ("Host_Error: recursively entered"); if (!str) str = dstring_new (); inerror = true; cl.viewstate.loading = false; va_start (argptr, error); dvsprintf (str, error, argptr); va_end (argptr); if (sv.active) Host_ShutdownServer (false); if (net_is_dedicated) Sys_Error ("Host_Error: %s", str->str); // dedicated servers exit Sys_Printf ("Host_Error: %s\n", str->str); CL_Disconnect (); cls.demonum = -1; inerror = false; longjmp (host_abortserver, 1); } static void Host_FindMaxClients (void) { int i; svs.maxclients = 1; i = COM_CheckParm ("-dedicated"); if (i) { if (i != (com_argc - 1)) { svs.maxclients = atoi (com_argv[i + 1]); } else svs.maxclients = 8; } cls.state = ca_disconnected; net_is_dedicated = i; i = COM_CheckParm ("-listen"); if (i) { if (net_is_dedicated) Sys_Error ("Only one of -dedicated or -listen can be specified"); if (i != (com_argc - 1)) svs.maxclients = atoi (com_argv[i + 1]); else svs.maxclients = 8; } if (svs.maxclients < 1) svs.maxclients = 8; else if (svs.maxclients > MAX_SCOREBOARD) svs.maxclients = MAX_SCOREBOARD; svs.maxclientslimit = svs.maxclients; if (svs.maxclientslimit < 4) svs.maxclientslimit = 4; svs.clients = Hunk_AllocName (0, svs.maxclientslimit * sizeof (client_t), "clients"); if (svs.maxclients > 1) deathmatch = 1.0; else deathmatch = 0.0; } static void Host_InitLocal (void) { Host_InitCommands (); Cvar_Register (&host_framerate_cvar, 0, 0); Cvar_Register (&host_speeds_cvar, 0, 0); Cvar_Register (&max_edicts_cvar, 0, 0); Cvar_Register (&sys_ticrate_cvar, 0, 0); Cvar_Register (&serverprofile_cvar, 0, 0); Cvar_Register (&cl_quakerc_cvar, 0, 0); Cvar_Register (&fraglimit_cvar, Cvar_Info, &fraglimit); Cvar_Register (&timelimit_cvar, Cvar_Info, &timelimit); Cvar_Register (&teamplay_cvar, Cvar_Info, &teamplay); Cvar_Register (&samelevel_cvar, 0, 0); Cvar_Register (&noexit_cvar, Cvar_Info, &noexit); Cvar_Register (&skill_cvar, 0, 0); Cvar_Register (&deathmatch_cvar, 0, 0); Cvar_Register (&coop_cvar, 0, 0); Cvar_Register (&pausable_cvar, 0, 0); Cvar_Register (&temp1_cvar, 0, 0); Cvar_Register (&cl_usleep_cvar, 0, 0); Host_FindMaxClients (); host_time = 1.0; // so a think at time 0 won't get called } /* SV_ClientPrintf Sends text across to be displayed */ void SV_ClientPrintf (const char *fmt, ...) { static dstring_t *str; va_list argptr; if (!str) str = dstring_new (); va_start (argptr, fmt); dvsprintf (str, fmt, argptr); va_end (argptr); MSG_WriteByte (&host_client->message, svc_print); MSG_WriteString (&host_client->message, str->str); } /* SV_BroadcastPrintf Sends text to all active clients */ void SV_BroadcastPrintf (const char *fmt, ...) { static dstring_t *str; va_list argptr; if (!str) str = dstring_new (); va_start (argptr, fmt); dvsprintf (str, fmt, argptr); va_end (argptr); for (unsigned i = 0; i < svs.maxclients; i++) if (svs.clients[i].active && svs.clients[i].spawned) { MSG_WriteByte (&svs.clients[i].message, svc_print); MSG_WriteString (&svs.clients[i].message, str->str); } } /* Host_ClientCommands Send text over to the client to be executed */ void Host_ClientCommands (const char *fmt, ...) { static dstring_t *str; va_list argptr; if (!str) str = dstring_new (); va_start (argptr, fmt); dvsprintf (str, fmt, argptr); va_end (argptr); MSG_WriteByte (&host_client->message, svc_stufftext); MSG_WriteString (&host_client->message, str->str); } /* SV_DropClient Called when the player is getting totally kicked off the host if (crash = true), don't bother sending signofs */ void SV_DropClient (bool crash) { client_t *client; unsigned i; pr_uint_t saveSelf; if (!crash) { // send any final messages (don't check for errors) if (NET_CanSendMessage (host_client->netconnection)) { MSG_WriteByte (&host_client->message, svc_disconnect); NET_SendMessage (host_client->netconnection, &host_client->message); } if (host_client->edict && host_client->spawned) { // call the prog function for removing a client // this will set the body to a dead frame, among other things saveSelf = *sv_globals.self; *sv_globals.self = EDICT_TO_PROG (&sv_pr_state, host_client->edict); PR_ExecuteProgram (&sv_pr_state, sv_funcs.ClientDisconnect); *sv_globals.self = saveSelf; } Sys_Printf ("Client %s removed\n", host_client->name); } // break the net connection Sys_MaskPrintf (SYS_net, "dropping client\n"); NET_Close (host_client->netconnection); host_client->netconnection = NULL; // free the client (the body stays around) host_client->active = false; host_client->name[0] = 0; host_client->old_frags = -999999; net_activeconnections--; // send notification to all clients for (i = 0, client = svs.clients; i < svs.maxclients; i++, client++) { if (!client->active) continue; MSG_WriteByte (&client->message, svc_updatename); MSG_WriteByte (&client->message, host_client - svs.clients); MSG_WriteString (&client->message, ""); MSG_WriteByte (&client->message, svc_updatefrags); MSG_WriteByte (&client->message, host_client - svs.clients); MSG_WriteShort (&client->message, 0); MSG_WriteByte (&client->message, svc_updatecolors); MSG_WriteByte (&client->message, host_client - svs.clients); MSG_WriteByte (&client->message, 0); } } /* Host_ShutdownServer This happens only at the end of a game, not between levels */ void Host_ShutdownServer (bool crash) { byte message[4]; double start; unsigned count, i; sizebuf_t buf; if (!sv.active) return; sv.active = false; // stop all client sounds immediately if (cls.state >= ca_connected) CL_Disconnect (); // flush any pending messages - like the score!!! start = Sys_DoubleTime (); do { count = 0; for (i = 0, host_client = svs.clients; i < svs.maxclients; i++, host_client++) { if (host_client->active && host_client->message.cursize) { if (NET_CanSendMessage (host_client->netconnection)) { NET_SendMessage (host_client->netconnection, &host_client->message); SZ_Clear (&host_client->message); } else { NET_GetMessage (host_client->netconnection); count++; } } } if ((Sys_DoubleTime () - start) > 3.0) break; } while (count); // make sure all the clients know we're disconnecting buf.data = message; buf.maxsize = 4; buf.cursize = 0; MSG_WriteByte (&buf, svc_disconnect); count = NET_SendToAll (&buf, 5.0); if (count) Sys_Printf ("Host_ShutdownServer: NET_SendToAll failed for %u clients\n", count); for (i = 0, host_client = svs.clients; i < svs.maxclients; i++, host_client++) if (host_client->active) SV_DropClient (crash); // clear structures memset (&sv, 0, sizeof (sv)); memset (svs.clients, 0, svs.maxclientslimit * sizeof (client_t)); } /* Host_ClearMemory This clears all the memory used by both the client and server, but does not reinitialize anything. */ void Host_ClearMemory (void) { Sys_MaskPrintf (SYS_dev, "Clearing memory\n"); Mod_ClearAll (); if (host_hunklevel) Hunk_FreeToLowMark (0, host_hunklevel); } static struct LISTENER_SET_TYPE(void) host_server_spawn = LISTENER_SET_STATIC_INIT(4); void Host_SpawnServer (void) { LISTENER_INVOKE (&host_server_spawn, NULL); Host_ClearMemory (); } void Host_OnServerSpawn (void (*onSpawn) (void)) { LISTENER_ADD (&host_server_spawn, (void(*)(void *, const void*)) onSpawn, 0); } /* Host_FilterTime Returns false if the time is too short to run a frame */ static float Host_FilterTime (float time) { float timedifference; float timescale = 1.0; con_realtime += time; if (cls.demoplayback) { timescale = max (0, demo_speed); time *= timescale; } realtime += time; //FIXME not having the framerate cap is nice, but it breaks net play timedifference = (timescale / 72.0) - (realtime - oldrealtime); if (!cls.demoplayback && (timedifference > 0)) return timedifference; // framerate is too high host_frametime = realtime - oldrealtime; oldrealtime = realtime; con_frametime = con_realtime - oldcon_realtime; oldcon_realtime = con_realtime; if (host_framerate > 0) host_frametime = host_framerate; else // don't allow really long or short frames host_frametime = bound (0.000, host_frametime, 0.1); return 0; } /* Host_Frame Runs all active servers */ static void _Host_Frame (float time) { static int first = 1; float sleeptime; if (setjmp (host_abortserver)) return; // something bad happened, or the // server disconnected rand (); // keep the random time dependent if (cls.demo_capture) time = 1.0 / 30; //FIXME fixed 30fps atm // decide the simulation time if ((sleeptime = Host_FilterTime (time)) != 0) { // don't run too fast, or packet will flood outs #ifdef HAVE_USLEEP if (cl_usleep && sleeptime > 0.002) // minimum sleep time usleep ((unsigned long) (sleeptime * 1000000 / 2)); #endif return; } host_time += host_frametime; //FIXME is this needed? vcr stuff if (first) { first = 0; if (isDedicated) { if (!sv.active) Cmd_ExecuteString ("map start", src_command); if (!sv.active) Sys_Error ("Could not initialize server"); } else { Con_NewMap (); } } NET_Poll (); if (!net_is_dedicated) { // Whether or not the server is active, if this is not a dedicated // server, then the client always needs to be able to process input // and send commands to the server before the server runs a frame. CL_PreFrame (); } if (sv.active) { SV_Frame (); } if (!net_is_dedicated) { CL_Frame (); } host_framecount++; } void Host_Frame (float time) { double time1, time2; static double timetotal; int c; double m; static int timecount; if (!serverprofile) { _Host_Frame (time); return; } time1 = Sys_DoubleTime (); _Host_Frame (time); time2 = Sys_DoubleTime (); timetotal += time2 - time1; timecount++; if (timecount < 1000) return; m = timetotal * 1000 / timecount; timecount = 0; timetotal = 0; c = 0; for (unsigned i = 0; i < svs.maxclients; i++) { if (svs.clients[i].active) c++; } Sys_Printf ("serverprofile: %2i clients %5.3g msec\n", c, m); } #define VCR_SIGNATURE 0x56435231 // "VCR1" static void Host_InitVCR (quakeparms_t *parms) { char *p; int i, len, n; if (COM_CheckParm ("-playback")) { if (com_argc != 2) Sys_Error ("No other parameters allowed with -playback"); vcrFile = QFS_Open ("quake.vcr", "rbz"); if (!vcrFile) Sys_Error ("playback file not found"); Qread (vcrFile, &i, sizeof (int)); if (i != VCR_SIGNATURE) Sys_Error ("Invalid signature in vcr file"); Qread (vcrFile, &com_argc, sizeof (int)); com_argv = malloc (com_argc * sizeof (char *)); SYS_CHECKMEM (com_argv); com_argv[0] = parms->argv[0]; for (i = 0; i < com_argc; i++) { Qread (vcrFile, &len, sizeof (int)); p = malloc (len); SYS_CHECKMEM (p); Qread (vcrFile, p, len); com_argv[i + 1] = p; } com_argc++; /* add one for arg[0] */ parms->argc = com_argc; parms->argv = com_argv; } if ((n = COM_CheckParm ("-record")) != 0) { vcrFile = QFS_Open ("quake.vcr", "wb"); i = VCR_SIGNATURE; Qwrite (vcrFile, &i, sizeof (int)); i = com_argc - 1; Qwrite (vcrFile, &i, sizeof (int)); for (i = 1; i < com_argc; i++) { if (i == n) { len = 10; Qwrite (vcrFile, &len, sizeof (int)); Qwrite (vcrFile, "-playback", len); continue; } len = strlen (com_argv[i]) + 1; Qwrite (vcrFile, &len, sizeof (int)); Qwrite (vcrFile, com_argv[i], len); } } } static memhunk_t * Host_Init_Memory (void) { int mem_parm = COM_CheckParm ("-mem"); size_t mem_size; void *mem_base; if (standard_quake) minimum_memory = MINIMUM_MEMORY; else minimum_memory = MINIMUM_MEMORY_LEVELPAK; Cvar_Register (&host_mem_size_cvar, 0, 0); if (mem_parm) Cvar_Set ("host_mem_size", com_argv[mem_parm + 1]); if (COM_CheckParm ("-minmemory")) host_mem_size = minimum_memory / (1024 * 1024.0); mem_size = ((size_t) host_mem_size * 1024 * 1024); if (mem_size < minimum_memory) Sys_Error ("Only %4.1f megs of memory reported, can't execute game", mem_size / (float) 0x100000); mem_base = Sys_Alloc (mem_size); if (!mem_base) Sys_Error ("Can't allocate %zd", mem_size); Sys_PageIn (mem_base, mem_size); memhunk_t *hunk = Memory_Init (mem_base, mem_size); Sys_Printf ("%4.1f megabyte heap\n", host_mem_size); return hunk; } static void Host_ExecConfig (cbuf_t *cbuf, int skip_quakerc) { // quakeforge.cfg overrides quake.rc as it contains quakeforge-specific // commands. If it doesn't exist, then this is the first time quakeforge // has been used in this installation, thus any existing legacy config // should be used to set up defaults on the assumption that the user has // things set up to work with another (hopefully compatible) client if (CL_ReadConfiguration ("quakeforge.cfg")) { Cmd_Exec_File (cbuf, fs_usercfg, 0); Cmd_StuffCmds (cbuf); COM_Check_quakerc ("startdemos", cbuf); } else { if (!skip_quakerc) { Cbuf_InsertText (cbuf, "exec quake.rc\n"); } Cmd_Exec_File (cbuf, fs_usercfg, 0); // Reparse the command line for + commands. // (sets still done, but it doesn't matter) // (Note, no non-base commands exist yet) if (skip_quakerc || !COM_Check_quakerc ("stuffcmds", 0)) { Cmd_StuffCmds (cbuf); } } } void Host_Init (void) { Sys_RegisterShutdown (Host_Shutdown, 0); Sys_Printf ("Host_Init\n"); host_cbuf = Cbuf_New (&id_interp); cmd_source = src_command; Sys_Init (); GIB_Init (true); COM_ParseConfig (host_cbuf); memhunk_t *hunk = Host_Init_Memory (); PI_Init (); Game_Init (hunk); if (!isDedicated) CL_InitCvars (); if (isDedicated) { PI_RegisterPlugins (server_plugin_list); Con_Load ("server"); Con_Init (); } Host_InitVCR (&host_parms); Host_InitLocal (); NET_Init (host_cbuf); Mod_Init (); SV_Init (); if (!net_is_dedicated) CL_Init (host_cbuf); if (con_module) { con_module->data->console->realtime = &con_realtime; con_module->data->console->frametime = &con_frametime; con_module->data->console->quit = Host_Quit_f; //FIXME need to rethink cbuf connections (they can form a stack) Cbuf_DeleteStack (con_module->data->console->cbuf); con_module->data->console->cbuf = host_cbuf; } Host_ExecConfig (host_cbuf, isDedicated || !cl_quakerc); Hunk_AllocName (0, 0, "-HOST_HUNKLEVEL-"); host_hunklevel = Hunk_LowMark (0); Sys_Printf ("\nVersion %s (build %04d)\n\n", PACKAGE_VERSION, build_number ()); Sys_Printf ("\x80\x81\x81\x82 %s initialized \x80\x81\x81\x82\n", PACKAGE_NAME); host_initialized = true; } /* Host_Shutdown FIXME: this is a callback from Sys_Quit and Sys_Error. It would be better to run quit through here before final handoff to the sys code. */ void Host_Shutdown (void *data) { static bool isdown = false; if (isdown) { printf ("recursive shutdown\n"); return; } isdown = true; }