| /* $Id: dqueue.h,v 1.1.2.2 2001/02/08 12:25:43 armin Exp $ */ |
| |
| #ifndef _DIVA_USER_MODE_IDI_DATA_QUEUE_H__ |
| #define _DIVA_USER_MODE_IDI_DATA_QUEUE_H__ |
| |
| #define DIVA_UM_IDI_MAX_MSGS 64 |
| |
| typedef struct _diva_um_idi_data_queue { |
| int segments; |
| int max_length; |
| int read; |
| int write; |
| int count; |
| int segment_pending; |
| void *data[DIVA_UM_IDI_MAX_MSGS]; |
| int length[DIVA_UM_IDI_MAX_MSGS]; |
| } diva_um_idi_data_queue_t; |
| |
| int diva_data_q_init(diva_um_idi_data_queue_t *q, |
| int max_length, int max_segments); |
| int diva_data_q_finit(diva_um_idi_data_queue_t *q); |
| int diva_data_q_get_max_length(const diva_um_idi_data_queue_t *q); |
| void *diva_data_q_get_segment4write(diva_um_idi_data_queue_t *q); |
| void diva_data_q_ack_segment4write(diva_um_idi_data_queue_t *q, |
| int length); |
| const void *diva_data_q_get_segment4read(const diva_um_idi_data_queue_t * |
| q); |
| int diva_data_q_get_segment_length(const diva_um_idi_data_queue_t *q); |
| void diva_data_q_ack_segment4read(diva_um_idi_data_queue_t *q); |
| |
| #endif |