84 	buf->len = buf->cum_len = 0;  in SBInit()
102 SBPut(sb_manager_t sbm, struct tcp_send_buffer *buf, const void *data, size_t len)  in SBPut()  argument
106 	if (len <= 0)  in SBPut()
110 	to_put = MIN(len, buf->size - buf->len);  in SBPut()
121 		memmove(buf->data, buf->head, buf->len);  in SBPut()
124 		memcpy(buf->head + buf->len, data, to_put);  in SBPut()
125 		buf->tail_off = buf->len + to_put;  in SBPut()
127 	buf->len += to_put;  in SBPut()
134 SBRemove(sb_manager_t sbm, struct tcp_send_buffer *buf, size_t len)  in SBRemove()  argument
138 	if (len <= 0)  in SBRemove()
141 	to_remove = MIN(len, buf->len);  in SBRemove()
149 	buf->len -= to_remove;  in SBRemove()
152 	if (buf->len == 0 && buf->head_off > 0) {  in SBRemove()