(svn r3726) - [6/6] Finalize conversion, finally save the patches struct.
- Remove the temporary synchronisation in during the map-transfer as this is no longer needed
- The saved patches work just like the saved gameoptions. You have a _patches and a _patches_newgame struct. The _patches_newgame struct contains the values from the configuration file and thus the defaults for new games. When a new game is started or an older game is loaded, the default values are copied over to _patches to be used. When you load a game that has PATS saved, the default values are also loaded, but immediately overwritten by the values from the savegame. This ensures that player-based values are always taken from your personal preferences.
- The current implementation also changes the default values if you change player-based settings in the game. For example changing window_snap_radius in a certain game will also change it for all next OpenTTD sessions.
- The savegame version has been increased to 22.
- The last 6 orso patches close the following reports:
[ 1366446 ] different names for patches: all patch settings have the same name as in the configuration file and are reachable from the console.
[ 1288024 ] Strange string on OTTD initial screen: configuration (and this includes patches) inputs are validated and clamped to their minimum/maximum values.
[ 1423198 ] Make "Signals on Drive side" player, not server, based: this is only visual so current setting is to save it with the savegame but not synchronise in multiplayer.
[ 1208070 ] Patches and New GRF options saved: apart from newgrf this is done

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/* $Id$ */

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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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void DedicatedFork(void)

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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 %d\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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void DedicatedFork(void) {}

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#endif /* ENABLE_NETWORK */