Lines Matching defs:ir
25 i_ring_init (I_ring *ir, int default_val)
28 ir->ir_empty = true;
29 ir->ir_front = 0;
30 ir->ir_back = 0;
32 ir->ir_data[i] = default_val;
33 ir->ir_default_val = default_val;
37 i_ring_empty (I_ring const *ir)
39 return ir->ir_empty;
43 i_ring_push (I_ring *ir, int val)
45 unsigned int dest_idx = (ir->ir_front + !ir->ir_empty) % I_RING_SIZE;
46 int old_val = ir->ir_data[dest_idx];
47 ir->ir_data[dest_idx] = val;
48 ir->ir_front = dest_idx;
49 if (dest_idx == ir->ir_back)
50 ir->ir_back = (ir->ir_back + !ir->ir_empty) % I_RING_SIZE;
51 ir->ir_empty = false;
56 i_ring_pop (I_ring *ir)
59 if (i_ring_empty (ir))
61 top_val = ir->ir_data[ir->ir_front];
62 ir->ir_data[ir->ir_front] = ir->ir_default_val;
63 if (ir->ir_front == ir->ir_back)
64 ir->ir_empty = true;
66 ir->ir_front = ((ir->ir_front + I_RING_SIZE - 1) % I_RING_SIZE);