--- deliantra/server/socket/init.C 2006/12/16 03:08:26 1.21 +++ deliantra/server/socket/init.C 2007/11/14 08:09:46 1.54 @@ -1,25 +1,25 @@ /* - CrossFire, A Multiplayer game for X-windows - - Copyright (C) 2001 Mark Wedel - Copyright (C) 1992 Frank Tore Johansen - - 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 the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - - The author can be reached via e-mail to -*/ + * This file is part of Deliantra, the Roguelike Realtime MMORPG. + * + * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Deliantra team + * Copyright (©) 2001,2007 Mark Wedel + * Copyright (©) 1992,2007 Frank Tore Johansen + * + * Deliantra 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 3 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, see . + * + * The authors can be reached via e-mail to + */ /** * \file @@ -32,18 +32,27 @@ * The reading of data is handled in ericserver.c */ - #include #include #include #include #include #include +#include +#include #include #include #include +#include + +// use relatively small values, as we do not expect to receive much, +// and we do userspace write buffering +// 8kb limits throughput to roughly 66kb/s +#define SOCKET_RCVBUF 8192 +#define SOCKET_SNDBUF 16384 + sockvec clients; /** @@ -53,17 +62,74 @@ */ client::client (int fd, const char *peername) : fd (fd), host (strdup (peername)), - socket_ev (this, &client::socket_cb), - cmd_ev (this, &client::cmd_cb) + socket_ev (this, &client::socket_cb) { + refcnt_inc (); // the socket is an external reference + + mss = 1500 - 52; // 1500 typical ethernet frame, 66 typical tcp header overhead + { struct linger linger_opt; - linger_opt.l_onoff = 0; + linger_opt.l_onoff = 0; linger_opt.l_linger = 0; if (setsockopt (fd, SOL_SOCKET, SO_LINGER, &linger_opt, sizeof (struct linger))) - LOG (llevError, "Cannot setsockopt(SO_LINGER): %s\n", strerror (errno)); + LOG (llevError, "SO_LINGER: %s\n", strerror (errno)); + } + + { + int val; + +#ifdef SO_RCVBUF + val = SOCKET_RCVBUF; + if (setsockopt (fd, SOL_SOCKET, SO_RCVBUF, &val, sizeof (val))) + LOG (llevError, "SO_RCVBUF: %s\n", strerror (errno)); +#endif + +#ifdef SO_SNDBUF + val = SOCKET_SNDBUF; + if (setsockopt (fd, SOL_SOCKET, SO_SNDBUF, &val, sizeof (val))) + LOG (llevError, "SO_SNDBUF: %s\n", strerror (errno)); +#endif + +#ifdef IP_TOS + val = IPTOS_LOWDELAY; + if (setsockopt (fd, IPPROTO_IP, IP_TOS, &val, sizeof (val))) + LOG (llevError, "IP_TOS: %s\n", strerror (errno)); +#endif + +#ifdef TCP_NODELAY + val = 1; + if (setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof (val))) + LOG (llevError, "TCP_NODELAY: %s\n", strerror (errno)); +#endif + + // set some very aggressive keepalive parameters +#ifdef TCP_KEEPIDLE + val = 1; + if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPIDLE, &val, sizeof (val))) + LOG (llevError, "TCP_KEEPIDLE: %s\n", strerror (errno)); +#endif + +#ifdef TCP_KEEPCNT + val = 3; + if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPCNT, &val, sizeof (val))) + LOG (llevError, "TCP_KEEPCNT: %s\n", strerror (errno)); +#endif + +#ifdef TCP_KEEPINTVL + val = 1; + if (setsockopt (fd, IPPROTO_TCP, TCP_KEEPINTVL, &val, sizeof (val))) + LOG (llevError, "TCP_KEEPINTVL: %s\n", strerror (errno)); +#endif + + // try to find the mss value in use +#ifdef TCP_MAXSEG + socklen_t sl = sizeof (val); + if (!getsockopt (fd, IPPROTO_TCP, TCP_MAXSEG, &val, &sl) && sl == sizeof (val)) + mss = val; +#endif } { @@ -85,114 +151,103 @@ getsockopt (fd, SOL_SOCKET, SO_SNDBUF, (char *) &oldbufsize, (socklen_t *) & buflen); } + state = ST_SETUP; mapmode = Map0Cmd; darkness = 1; - status = Ns_Add; mapx = 11; mapy = 11; itemcmd = 1; /* Default is version item1 command */ - - faces_sent_len = nrofpixmaps; - faces_sent = (uint8 *)calloc (nrofpixmaps, sizeof (*faces_sent)); - if (!faces_sent) - fatal (OUT_OF_MEMORY); + max_rate = 100000 / (1000000 / MAX_TIME); // ~1mbit is assumed per default /* Do this so we don't send a face command for the client for * this face. Face 0 is sent to the client to say clear * face information. */ - faces_sent[0] = NS_FACESENT_FACE; + faces_sent[0] = true; + fx_want [FT_FACE] = true; // all clients must support image faces - // socket I/O is low priority - // we prefer to have the server run instead of handling client requests - socket_ev.prio (PE_PRIO_NORMAL + 1); - socket_ev.fd (fd); - socket_ev.poll (PE_R); - - // command handling is even lower priority - // that way no client can monopolise the server - cmd_ev.prio (PE_PRIO_NORMAL + 2); + socket_ev.set (fd, EV_READ); + socket_ev.start (); // initialisation done, kick it! - send_packet_printf ("version %d %d %s\n", VERSION_CS, VERSION_SC, VERSION_INFO); flush (); -#if 0//TODO - socket_info.nconns++; - if (socket_info.nconns > cst_tot.max_conn) cst_tot.max_conn = socket_info.nconns; - if (socket_info.nconns > cst_lst.max_conn) cst_lst.max_conn = socket_info.nconns; -#endif + reset_stats (); + + clients.insert (this); } client::~client () { - if (pl) - pl->socket = 0; - - if (fd >= 0) - close (fd), fd = -1; + clients.erase (this); - free (stats.range), stats.range = 0; - free (stats.title), stats.title = 0; - free (host), host = 0; + mapinfo_queue_clear (); + free (stats.range); + free (stats.title); + free (host); } void -client::destroy () +client::do_destroy () { - status = Ns_Dead; - socket_ev.suspend (); - cmd_ev.suspend (); -} + attachable::do_destroy (); -/** This sets up the socket and reads all the image information into memory. */ -void -init_ericserver (void) -{ - cst_tot.time_start = time (NULL); - cst_lst.time_start = time (NULL); + if (pl) + pl->disconnect (); - LOG (llevDebug, "Initialize new client/server data\n"); + if (fd >= 0) + { + send_packet ("goodbye"); + flush (); - read_client_images (); -} + close (fd); + } + state = ST_DEAD; -/******************************************************************************* - * - * Start of functions dealing with freeing of the data. - * - ******************************************************************************/ + socket_ev.stop (); -/** Free's all the memory that ericserver allocates. */ -void -free_all_newserver (void) -{ - LOG (llevDebug, "Freeing all new client/server information.\n"); - free_socket_images (); + refcnt_dec (); // socket no longer open } -/** Sends the 'goodbye' command to the player, and closes connection. */ void -final_free_player (player *pl) +client::reset_stats () { - free_player (pl); -} + /* we need to clear these to -1 and not zero - otherwise, + * if a player quits and starts a new character, we wont + * send new values to the client, as things like exp start + * at zero. + */ + for (int i = 0; i < NUM_SKILLS; i++) + last_skill_exp[i] = -1; -bool -add_client (int fd, const char *peername) -{ - if (checkbanned (NULL, peername)) - { - LOG (llevInfo, "Banned host tried to connect: [%s]\n", peername); - return false; - } - else - { - client *ns = new client (dup (fd), peername); - clients.push_back (ns); - return true; - } + for (int i = 0; i < NROFATTACKS; i++) + last_resist[i] = -1; + + last_weapon_sp = -1; + last_level = -1; + last_stats.exp = -1; + last_weight = (uint32) - 1; + last_flags = 0; + last_weight = 0; + last_weight_limit = 0; + last_path_attuned = 0; + last_path_repelled = 0; + last_path_denied = 0; + last_speed = 0; + last_flags = 0; + + static living zero_living; + last_stats = zero_living; +} + +client * +client::create (int fd, const char *peername) +{ + client *ns = new client (dup (fd), peername); + ns->instantiate (); // effectively a nop right now + INVOKE_CLIENT (CONNECT, ns); + return ns; }