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belugas

(svn r13226) -Feature: Allow to have more than only two airports per town. The number of airports is now controlled by the noise each of them generates, the distance from town's center and how tolerant the town is.
Initial concept : TTDPatch (moreairpots), Initial code : Pasky
Thanks to BigBB (help coding), Smatz Skidd13 and frosch for bugcatches and advices

/* $Id$ */

/** @file fiber.hpp Base for all fiber related classes. */

#ifndef FIBER_HPP
#define FIBER_HPP

typedef void (CDECL *FiberFunc)(void *);

class Fiber {
public:
	/**
	 * Switch to this fiber.
	 */
	virtual void SwitchToFiber() = 0;

	/**
	 * Exit a fiber.
	 */
	virtual void Exit() = 0;

	/**
	 * Check if a fiber is running.
	 */
	virtual bool IsRunning() = 0;

	/**
	 * Get the 'param' data of the Fiber.
	 */
	virtual void *GetFiberData() = 0;

	/**
	 * Virtual Destructor to mute warnings.
	 */
	virtual ~Fiber() {};

	/**
	 * Create a new fiber, calling proc(param) when running.
	 */
	static Fiber *New(FiberFunc proc, void *param);

	/**
	 * Attach a current thread to a new fiber.
	 */
	static Fiber *AttachCurrent(void *param);

	/**
	 * Get the 'param' data of the current active Fiber.
	 */
	static void *GetCurrentFiberData();
};

#endif /* FIBER_HPP */