141 lines
4.3 KiB
C
141 lines
4.3 KiB
C
/***************************************************************************
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* Copyright (C) 03/2005 by Olaf Rempel *
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* razzor@kopf-tisch.de *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <sys/socket.h>
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#include <netinet/in.h>
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#include <netinet/ip.h>
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#include <arpa/inet.h>
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#include <time.h>
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#include <pthread.h>
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#include "hlswmaster.h"
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#include "plugin.h"
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#include "list.h"
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#define DEBUG 1
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LIST_HEAD(server_list);
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/* sichert die server liste */
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static pthread_mutex_t server_list_lock = PTHREAD_MUTEX_INITIALIZER;
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/**
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* server_cmp()
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* LIST_FIND helper
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*
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* @param struct game_server *a
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* @param struct game_server *b
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* @return true wenn es sich um den selben server handelt
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*/
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static inline int server_cmp(const struct game_server *a, struct game_server *b) {
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return (a->gameid == b->gameid && a->ip == b->ip &&
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a->port1 == b->port1 && a->port2 == b->port2);
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}
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/**
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* server_add()
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* fuegt der internen serverliste einen server hinzu
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* wenn dieser server schon in der liste vorhanden ist, wird nur
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* die modtime angepasst
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*
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* @param unsigned int gameid
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* @param struct in_addr ip
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* @param u_int16_t port1
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* @param u_int16_t port2
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* @return false bei fehler
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*/
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int server_add(u_int16_t gameid, u_int32_t ip, u_int16_t port1, u_int16_t port2) {
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struct game_server server, *nserver;
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server.gameid = gameid;
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server.ip = ip;
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server.port1 = port1;
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server.port2 = port2;
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pthread_mutex_lock(&server_list_lock);
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/* diesen server in der liste suchen */
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nserver = LIST_FIND(&server_list, server_cmp, struct game_server *, &server);
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if (!nserver) {
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/* neuen eintrag anlegen */
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if (!(nserver = malloc(sizeof(struct game_server)))) {
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pthread_mutex_unlock(&server_list_lock);
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return 0;
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}
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#ifdef DEBUG
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{
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struct in_addr tmp;
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tmp.s_addr = server.ip;
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printf("server_add_new: gameid=%2d ip=%15s port1=%5d port2=%5d\n",
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server.gameid, inet_ntoa(tmp), server.port1, server.port2);
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}
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#endif
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memcpy(nserver, &server, sizeof(struct game_server));
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list_add_tail(&nserver->list, &server_list);
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}
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/* modtime anpassen */
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nserver->modtime = time(NULL);
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pthread_mutex_unlock(&server_list_lock);
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return 1;
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}
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/**
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* server_collector()
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* loescht alte server aus der liste
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* baut aus den verbleibenden die client_liste auf
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*
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* TODO: timeout und intervall als config parameter (config file?)
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*/
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void server_collector(void) {
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struct game_server *server, *tmp;
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unsigned long now, timeout = 60;
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while (1) {
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sleep(5);
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now = time(NULL);
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pthread_mutex_lock(&server_list_lock);
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list_for_each_entry_safe(server, tmp, &server_list, list) {
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if ((server->modtime + timeout) < now) {
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#ifdef DEBUG
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{
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struct in_addr tmp2;
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tmp2.s_addr = server->ip;
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printf("server timeout: gameid=%2d ip=%15s port1=%5d port2=%5d\n",
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server->gameid, inet_ntoa(tmp2), server->port1, server->port2);
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}
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#endif
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list_del(&server->list);
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free(server);
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continue;
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}
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client_pkt_add(server);
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}
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pthread_mutex_unlock(&server_list_lock);
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client_pkt_commit();
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}
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}
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