/*****************************************************************************/
/*                                                                           */
/*                                callback.h                                 */
/*                                                                           */
/*                              Chip callbacks                               */
/*                                                                           */
/*                                                                           */
/*                                                                           */
/* (C) 2003      Ullrich von Bassewitz                                       */
/*               Römerstrasse 52                                             */
/*               D-70794 Filderstadt                                         */
/* EMail:        uz@cc65.org                                                 */
/*                                                                           */
/*                                                                           */
/* This software is provided 'as-is', without any expressed or implied       */
/* warranty.  In no event will the authors be held liable for any damages    */
/* arising from the use of this software.                                    */
/*                                                                           */
/* Permission is granted to anyone to use this software for any purpose,     */
/* including commercial applications, and to alter it and redistribute it    */
/* freely, subject to the following restrictions:                            */
/*                                                                           */
/* 1. The origin of this software must not be misrepresented; you must not   */
/*    claim that you wrote the original software. If you use this software   */
/*    in a product, an acknowledgment in the product documentation would be  */
/*    appreciated but is not required.                                       */
/* 2. Altered source versions must be plainly marked as such, and must not   */
/*    be misrepresented as being the original software.                      */
/* 3. This notice may not be removed or altered from any source              */
/*    distribution.                                                          */
/*                                                                           */
/*****************************************************************************/



#ifndef CALLBACK_H
#define CALLBACK_H



/*****************************************************************************/
/*  				     Data				     */
/*****************************************************************************/



/* Type of a callback function */
typedef void (*CallbackFunc) (int TickOffs, void* UserData);

/* Forward */
typedef struct Callback Callback;



/*****************************************************************************/
/*  		    	       	     Code				     */
/*****************************************************************************/



Callback* NewCallback (unsigned Ticks, CallbackFunc Func, void* Data);
/* Create a callback for function F to be called in Ticks ticks. */

void FreeCallback (Callback* C);
/* Delete a callback (remove from the queue) */

void HandleCallbacks (unsigned TicksSinceLastCall);                            
/* Handle the callback queue */



/* End of callback.h */

#endif