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rubidium

(svn r20593) -Fix: (rlongago, r20547): long ago the service interval was int16, after which is got converted to Date except in the order backup. Much later I copied the savegame snippets from a vehicle and applied that on the order backup. Presto, reading/writing 32 bits (of Date) into 16 bits of ancient style service interval. That would then "spoil" the name pointer and that eventually crashes OpenTTD as it's likely to be an invalid pointer.

/* $Id$ */

/*
 * 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 autoreplace_base.h Base class for autoreplaces/autorenews. */

#ifndef AUTOREPLACE_BASE_H
#define AUTOREPLACE_BASE_H

#include "core/pool_type.hpp"
#include "autoreplace_type.h"
#include "engine_type.h"
#include "group_type.h"

typedef uint16 EngineRenewID;

/**
 * Memory pool for engine renew elements. DO NOT USE outside of engine.c. Is
 * placed here so the only exception to this rule, the saveload code, can use
 * it.
 */
typedef Pool<EngineRenew, EngineRenewID, 16, 64000> EngineRenewPool;
extern EngineRenewPool _enginerenew_pool;

/**
 * Struct to store engine replacements. DO NOT USE outside of engine.c. Is
 * placed here so the only exception to this rule, the saveload code, can use
 * it.
 */
struct EngineRenew : EngineRenewPool::PoolItem<&_enginerenew_pool> {
	EngineID from;
	EngineID to;
	EngineRenew *next;
	GroupID group_id;

	EngineRenew(EngineID from = INVALID_ENGINE, EngineID to = INVALID_ENGINE) : from(from), to(to) {}
	~EngineRenew() {}
};

#define FOR_ALL_ENGINE_RENEWS_FROM(var, start) FOR_ALL_ITEMS_FROM(EngineRenew, enginerenew_index, var, start)
#define FOR_ALL_ENGINE_RENEWS(var) FOR_ALL_ENGINE_RENEWS_FROM(var, 0)

#endif /* AUTOREPLACE_BASE_H */