1 /*

2 * $Id: rx_layer.h,v 1.3 2004/02/01 08:17:12 hipnod Exp $

3 *

4 * Copyright (C) 2003 giFT project (gift.sourceforge.net)

5 *

6 * This program is free software; you can redistribute it and/or modify it

7 * under the terms of the GNU General Public License as published by the

8 * Free Software Foundation; either version 2, or (at your option) any

9 * later version.

10 *

11 * This program is distributed in the hope that it will be useful, but

12 * WITHOUT ANY WARRANTY; without even the implied warranty of

13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

14 * General Public License for more details.

15 */

16

17 #ifndef GIFT_GT_RX_LAYER_H_

18 #define GIFT_GT_RX_LAYER_H_

19

20 /*****************************************************************************/

21

22 #include "rx_stack.h"

23 #include "io_buf.h"

24

25 /*****************************************************************************/

26

27 struct gt_rx_stack;

28 struct rx_layer;

29

30 struct rx_layer_ops

31 {

32 BOOL (*init) (struct rx_layer *layer, void *udata);

33 void (*destroy) (struct rx_layer *layer);

34 void (*enable) (struct rx_layer *layer);

35 void (*disable) (struct rx_layer *layer);

36 void (*recv) (struct rx_layer *layer, struct io_buf *io_buf);

37 };

38

39 struct rx_layer

40 {

41 const char *name;

42 void *udata;

43 struct rx_layer_ops *ops;

44 BOOL enabled;

45

46 struct rx_layer *upper;

47 struct rx_layer *lower;

48

49 struct gt_rx_stack *stack;

50 };

51

52 /*****************************************************************************/

53

54 struct rx_layer *gt_rx_layer_new (struct gt_rx_stack *stack,

55 const char *name,

56 struct rx_layer_ops *ops, void *udata);

57 void gt_rx_layer_free (struct rx_layer *layer);

58

59 void gt_rx_layer_disable (struct rx_layer *layer);

60 void gt_rx_layer_enable (struct rx_layer *layer);

61

62 /* pass a message buffer up to preceding layers */

63 void gt_rx_layer_recv (struct rx_layer *layer,

64 struct io_buf *io_buf);

65

66 /*****************************************************************************/

67

68 #endif /* GIFT_GT_RX_LAYER_H_ */