68 lines
2.0 KiB
C++
68 lines
2.0 KiB
C++
/*
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* This file is part of OpenTTD.
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* 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.
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* 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.
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* 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/>.
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*/
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/** @file dedicated.cpp Forking support for dedicated servers. */
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#include "stdafx.h"
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#include "fileio_func.h"
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#include <string>
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std::string _log_file; ///< File to reroute output of a forked OpenTTD to
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std::unique_ptr<FILE, FileDeleter> _log_fd; ///< File to reroute output of a forked OpenTTD to
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#if defined(UNIX)
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#include <unistd.h>
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#include "safeguards.h"
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#if defined(SUNOS) && !defined(_LP64) && !defined(_I32LPx)
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/* Solaris has, in certain situation, pid_t defined as long, while in other
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* cases it has it defined as int... this handles all cases nicely.
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*/
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# define PRINTF_PID_T "%ld"
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#else
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# define PRINTF_PID_T "%d"
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#endif
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void DedicatedFork()
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{
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/* Fork the program */
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pid_t pid = fork();
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switch (pid) {
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case -1:
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perror("Unable to fork");
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exit(1);
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case 0: { // We're the child
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/* Open the log-file to log all stuff too */
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_log_fd.reset(fopen(_log_file.c_str(), "a"));
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if (!_log_fd) {
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perror("Unable to open logfile");
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exit(1);
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}
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/* Redirect stdout and stderr to log-file */
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if (dup2(fileno(_log_fd.get()), fileno(stdout)) == -1) {
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perror("Rerouting stdout");
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exit(1);
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}
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if (dup2(fileno(_log_fd.get()), fileno(stderr)) == -1) {
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perror("Rerouting stderr");
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exit(1);
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}
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break;
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}
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default:
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/* We're the parent */
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printf("Loading dedicated server...\n");
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printf(" - Forked to background with pid " PRINTF_PID_T "\n", pid);
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exit(0);
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}
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}
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#endif
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