1 /* $Id: dqueue.h,v 1.1.2.2 2001/02/08 12:25:43 armin Exp $ */
2
3 #ifndef _DIVA_USER_MODE_IDI_DATA_QUEUE_H__
4 #define _DIVA_USER_MODE_IDI_DATA_QUEUE_H__
5
6 #define DIVA_UM_IDI_MAX_MSGS 64
7
8 typedef struct _diva_um_idi_data_queue {
9 int segments;
10 int max_length;
11 int read;
12 int write;
13 int count;
14 int segment_pending;
15 void *data[DIVA_UM_IDI_MAX_MSGS];
16 int length[DIVA_UM_IDI_MAX_MSGS];
17 } diva_um_idi_data_queue_t;
18
19 int diva_data_q_init(diva_um_idi_data_queue_t * q,
20 int max_length, int max_segments);
21 int diva_data_q_finit(diva_um_idi_data_queue_t * q);
22 int diva_data_q_get_max_length(const diva_um_idi_data_queue_t * q);
23 void *diva_data_q_get_segment4write(diva_um_idi_data_queue_t * q);
24 void diva_data_q_ack_segment4write(diva_um_idi_data_queue_t * q,
25 int length);
26 const void *diva_data_q_get_segment4read(const diva_um_idi_data_queue_t *
27 q);
28 int diva_data_q_get_segment_length(const diva_um_idi_data_queue_t * q);
29 void diva_data_q_ack_segment4read(diva_um_idi_data_queue_t * q);
30
31 #endif
32
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