43 NextIndex(sb_queue_t sq, index_type i)  in NextIndex()  argument
45 	return (i != sq->_capacity ? i + 1: 0);  in NextIndex()
49 PrevIndex(sb_queue_t sq, index_type i)  in PrevIndex()  argument
51 	return (i != 0 ? i - 1: sq->_capacity);  in PrevIndex()
63 	sb_queue_t sq;  in CreateSBQueue()  local
65 	sq = (sb_queue_t)calloc(1, sizeof(struct sb_queue));  in CreateSBQueue()
66 	if (!sq)  in CreateSBQueue()
69 	sq->_q = (struct tcp_send_buffer **)  in CreateSBQueue()
71 	if (!sq->_q) {  in CreateSBQueue()
72 		free(sq);  in CreateSBQueue()
76 	sq->_capacity = capacity;  in CreateSBQueue()
77 	sq->_head = sq->_tail = 0;  in CreateSBQueue()
79 	return sq;  in CreateSBQueue()
83 DestroySBQueue(sb_queue_t sq)  in DestroySBQueue()  argument
85 	if (!sq)  in DestroySBQueue()
88 	if (sq->_q) {  in DestroySBQueue()
89 		free((void *)sq->_q);  in DestroySBQueue()
90 		sq->_q = NULL;  in DestroySBQueue()
93 	free(sq);  in DestroySBQueue()
97 SBEnqueue(sb_queue_t sq, struct tcp_send_buffer *buf)  in SBEnqueue()  argument
99 	index_type h = sq->_head;  in SBEnqueue()
100 	index_type t = sq->_tail;  in SBEnqueue()
101 	index_type nt = NextIndex(sq, t);  in SBEnqueue()
104 		sq->_q[t] = buf;  in SBEnqueue()
105 		SBMemoryBarrier(sq->_q[t], sq->_tail);  in SBEnqueue()
106 		sq->_tail = nt;  in SBEnqueue()
115 SBDequeue(sb_queue_t sq)  in SBDequeue()  argument
117 	index_type h = sq->_head;  in SBDequeue()
118 	index_type t = sq->_tail;  in SBDequeue()
121 		struct tcp_send_buffer *buf = sq->_q[h];  in SBDequeue()
122 		SBMemoryBarrier(sq->_q[h], sq->_head);  in SBDequeue()
123 		sq->_head = NextIndex(sq, h);  in SBDequeue()