paulo@0: /*
paulo@0:  * $Id: rx_layer.h,v 1.3 2004/02/01 08:17:12 hipnod Exp $
paulo@0:  *
paulo@0:  * Copyright (C) 2003 giFT project (gift.sourceforge.net)
paulo@0:  *
paulo@0:  * This program is free software; you can redistribute it and/or modify it
paulo@0:  * under the terms of the GNU General Public License as published by the
paulo@0:  * Free Software Foundation; either version 2, or (at your option) any
paulo@0:  * later version.
paulo@0:  *
paulo@0:  * This program is distributed in the hope that it will be useful, but
paulo@0:  * WITHOUT ANY WARRANTY; without even the implied warranty of
paulo@0:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
paulo@0:  * General Public License for more details.
paulo@0:  */
paulo@0: 
paulo@0: #ifndef GIFT_GT_RX_LAYER_H_
paulo@0: #define GIFT_GT_RX_LAYER_H_
paulo@0: 
paulo@0: /*****************************************************************************/
paulo@0: 
paulo@0: #include "rx_stack.h"
paulo@0: #include "io_buf.h"
paulo@0: 
paulo@0: /*****************************************************************************/
paulo@0: 
paulo@0: struct gt_rx_stack;
paulo@0: struct rx_layer;
paulo@0: 
paulo@0: struct rx_layer_ops
paulo@0: {
paulo@0: 	BOOL (*init)     (struct rx_layer *layer, void *udata);
paulo@0: 	void (*destroy)  (struct rx_layer *layer);
paulo@0: 	void (*enable)   (struct rx_layer *layer);
paulo@0: 	void (*disable)  (struct rx_layer *layer);
paulo@0: 	void (*recv)     (struct rx_layer *layer, struct io_buf *io_buf);
paulo@0: };
paulo@0: 
paulo@0: struct rx_layer
paulo@0: {
paulo@0: 	const char            *name;
paulo@0: 	void                  *udata;
paulo@0: 	struct rx_layer_ops   *ops;
paulo@0: 	BOOL                   enabled;
paulo@0: 
paulo@0: 	struct rx_layer       *upper;
paulo@0: 	struct rx_layer       *lower;
paulo@0: 
paulo@0: 	struct gt_rx_stack    *stack;
paulo@0: };
paulo@0: 
paulo@0: /*****************************************************************************/
paulo@0: 
paulo@0: struct rx_layer *gt_rx_layer_new     (struct gt_rx_stack *stack,
paulo@0:                                       const char *name,
paulo@0:                                       struct rx_layer_ops *ops, void *udata);
paulo@0: void             gt_rx_layer_free    (struct rx_layer *layer);
paulo@0: 
paulo@0: void             gt_rx_layer_disable (struct rx_layer *layer);
paulo@0: void             gt_rx_layer_enable  (struct rx_layer *layer);
paulo@0: 
paulo@0: /* pass a message buffer up to preceding layers */
paulo@0: void             gt_rx_layer_recv    (struct rx_layer *layer,
paulo@0:                                       struct io_buf *io_buf);
paulo@0: 
paulo@0: /*****************************************************************************/
paulo@0: 
paulo@0: #endif /* GIFT_GT_RX_LAYER_H_ */