OpenTTD-patches/src/dedicated.cpp
Jonathan G Rennison fc1c47cbd2 Merge branch 'master' into jgrpp
# Conflicts:
#	cmake/CompileFlags.cmake
#	src/crashlog.cpp
#	src/crashlog.h
#	src/date_type.h
#	src/depot_type.h
#	src/landscape.cpp
#	src/openttd.cpp
#	src/order_cmd.cpp
#	src/order_gui.cpp
#	src/os/macosx/crashlog_osx.cpp
#	src/os/unix/crashlog_unix.cpp
#	src/os/windows/crashlog_win.cpp
#	src/pathfinder/npf/npf.cpp
#	src/road_cmd.cpp
#	src/script/api/script_infrastructure.cpp
#	src/stdafx.h
#	src/table/settings/gui_settings.ini
#	src/table/settings/pathfinding_settings.ini
#	src/tests/CMakeLists.txt
2023-11-13 19:08:22 +00:00

62 lines
1.8 KiB
C++

/*
* This file is part of OpenTTD.
* 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.
* 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.
* 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/>.
*/
/** @file dedicated.cpp Forking support for dedicated servers. */
#include "stdafx.h"
#include "fileio_func.h"
#include "debug.h"
#include <string>
std::string _log_file; ///< File to reroute output of a forked OpenTTD to
std::unique_ptr<FILE, FileDeleter> _log_fd; ///< File to reroute output of a forked OpenTTD to
#if defined(UNIX)
#include <unistd.h>
#include "safeguards.h"
#define PRINTF_PID_T "%d"
void DedicatedFork()
{
/* Fork the program */
pid_t pid = fork();
switch (pid) {
case -1:
perror("Unable to fork");
exit(1);
case 0: { // We're the child
/* Open the log-file to log all stuff too */
_log_fd.reset(fopen(_log_file.c_str(), "a"));
if (!_log_fd) {
perror("Unable to open logfile");
exit(1);
}
/* Redirect stdout and stderr to log-file */
if (dup2(fileno(_log_fd.get()), fileno(stdout)) == -1) {
perror("Rerouting stdout");
exit(1);
}
if (dup2(fileno(_log_fd.get()), fileno(stderr)) == -1) {
perror("Rerouting stderr");
exit(1);
}
break;
}
default:
/* We're the parent */
DEBUG(net, 0, "Loading dedicated server...\n");
DEBUG(net, 0, " - Forked to background with pid " PRINTF_PID_T "\n", pid);
exit(0);
}
}
#endif