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/* $Id$ */

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/** @file dedicated.cpp Forking support for dedicated servers. */

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#include "stdafx.h"

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#ifdef ENABLE_NETWORK

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#if defined(UNIX) && !defined(__MORPHOS__)

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#include "openttd.h"

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#include "variables.h"

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#include <sys/types.h>

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#include <unistd.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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# 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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			FILE* f;

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			/* Open the log-file to log all stuff too */

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			f = fopen(_log_file, "a");

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			if (f == NULL) {

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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(f), 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(f), 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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#else

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/** Empty helper function call for NOT(UNIX and not MORPHOS) systems */

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void DedicatedFork() {}

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#endif /* ENABLE_NETWORK */