dedicated.cpp

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00001 /* $Id: dedicated.cpp 17606 2009-09-21 18:36:33Z rubidium $ */
00002 
00003 /*
00004  * This file is part of OpenTTD.
00005  * OpenTTD 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, version 2.
00006  * OpenTTD 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.
00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
00008  */
00009 
00012 #include "stdafx.h"
00013 
00014 #ifdef ENABLE_NETWORK
00015 
00016 #if defined(UNIX) && !defined(__MORPHOS__)
00017 
00018 #include "variables.h"
00019 
00020 #include <unistd.h>
00021 
00022 #if (defined(SUNOS) && !defined(_LP64) && !defined(_I32LPx)) || defined(__HAIKU__)
00023 /* Solaris has, in certain situation, pid_t defined as long, while in other
00024  *  cases it has it defined as int... this handles all cases nicely.
00025  * Haiku has also defined pid_t as a long.
00026  */
00027 # define PRINTF_PID_T "%ld"
00028 #else
00029 # define PRINTF_PID_T "%d"
00030 #endif
00031 
00032 void DedicatedFork()
00033 {
00034   /* Fork the program */
00035   pid_t pid = fork();
00036   switch (pid) {
00037     case -1:
00038       perror("Unable to fork");
00039       exit(1);
00040 
00041     case 0: { // We're the child
00042       FILE *f;
00043 
00044       /* Open the log-file to log all stuff too */
00045       f = fopen(_log_file, "a");
00046       if (f == NULL) {
00047         perror("Unable to open logfile");
00048         exit(1);
00049       }
00050       /* Redirect stdout and stderr to log-file */
00051       if (dup2(fileno(f), fileno(stdout)) == -1) {
00052         perror("Rerouting stdout");
00053         exit(1);
00054       }
00055       if (dup2(fileno(f), fileno(stderr)) == -1) {
00056         perror("Rerouting stderr");
00057         exit(1);
00058       }
00059       break;
00060     }
00061 
00062     default:
00063       /* We're the parent */
00064       printf("Loading dedicated server...\n");
00065       printf("  - Forked to background with pid " PRINTF_PID_T "\n", pid);
00066       exit(0);
00067   }
00068 }
00069 #endif
00070 
00071 #else
00072 
00074 void DedicatedFork() {}
00075 
00076 #endif /* ENABLE_NETWORK */

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