15 cirbuf_init(struct cirbuf *cbuf, char *buf, unsigned int start, unsigned int maxlen)  in cirbuf_init()  argument
19 	cbuf->maxlen = maxlen;  in cirbuf_init()
46 		dprintf("s[%d] -> d[%d] (%d)\n", cbuf->maxlen - n +  in cirbuf_add_buf_head()
49 		memcpy(cbuf->buf + cbuf->maxlen - n + (cbuf->start + e), c,  in cirbuf_add_buf_head()
53 	cbuf->start += (cbuf->maxlen - n + e);  in cirbuf_add_buf_head()
54 	cbuf->start %= cbuf->maxlen;  in cirbuf_add_buf_head()
70 	if (n < cbuf->maxlen - cbuf->end - 1 + e) {  in cirbuf_add_buf_tail()
76 			cbuf->maxlen - cbuf->end - 1 + e);  in cirbuf_add_buf_tail()
77 		dprintf("s[%d] -> d[%d] (%d)\n", cbuf->maxlen - cbuf->end - 1 +  in cirbuf_add_buf_tail()
78 			e, 0, n - cbuf->maxlen + cbuf->end + 1 - e);  in cirbuf_add_buf_tail()
79 		memcpy(cbuf->buf + cbuf->end + !e, c, cbuf->maxlen -  in cirbuf_add_buf_tail()
81 		memcpy(cbuf->buf, c + cbuf->maxlen - cbuf->end - 1 + e,  in cirbuf_add_buf_tail()
82 		       n - cbuf->maxlen + cbuf->end + 1 - e);  in cirbuf_add_buf_tail()
86 	cbuf->end %= cbuf->maxlen;  in cirbuf_add_buf_tail()
96 		cbuf->start += (cbuf->maxlen - 1);  in __cirbuf_add_head()
97 		cbuf->start %= cbuf->maxlen;  in __cirbuf_add_head()
126 		cbuf->end %= cbuf->maxlen;  in __cirbuf_add_tail()
156 		cbuf->buf[(cbuf->start+i)%cbuf->maxlen] =  in __cirbuf_shift_left()
157 			cbuf->buf[(cbuf->start+i+1)%cbuf->maxlen];  in __cirbuf_shift_left()
159 	cbuf->buf[(cbuf->start-1+cbuf->maxlen)%cbuf->maxlen] = tmp;  in __cirbuf_shift_left()
160 	cbuf->start += (cbuf->maxlen - 1);  in __cirbuf_shift_left()
161 	cbuf->start %= cbuf->maxlen;  in __cirbuf_shift_left()
162 	cbuf->end += (cbuf->maxlen - 1);  in __cirbuf_shift_left()
163 	cbuf->end %= cbuf->maxlen;  in __cirbuf_shift_left()
173 		cbuf->buf[(cbuf->end+cbuf->maxlen-i)%cbuf->maxlen] =  in __cirbuf_shift_right()
174 			cbuf->buf[(cbuf->end+cbuf->maxlen-i-1)%cbuf->maxlen];  in __cirbuf_shift_right()
176 	cbuf->buf[(cbuf->end+1)%cbuf->maxlen] = tmp;  in __cirbuf_shift_right()
178 	cbuf->start %= cbuf->maxlen;  in __cirbuf_shift_right()
180 	cbuf->end %= cbuf->maxlen;  in __cirbuf_shift_right()
190 	if (cbuf->start < cbuf->maxlen/2) {  in cirbuf_align_left()
211 	if (cbuf->start >= cbuf->maxlen/2) {  in cirbuf_align_right()
212 		while (cbuf->end != cbuf->maxlen-1) {  in cirbuf_align_right()
217 		while (cbuf->start != cbuf->maxlen-1) {  in cirbuf_align_right()
236 		cbuf->start %= cbuf->maxlen;  in cirbuf_del_buf_head()
240 		cbuf->start %= cbuf->maxlen;  in cirbuf_del_buf_head()
255 		cbuf->end  += (cbuf->maxlen - size + 1);  in cirbuf_del_buf_tail()
256 		cbuf->end %= cbuf->maxlen;  in cirbuf_del_buf_tail()
259 		cbuf->end  += (cbuf->maxlen - size);  in cirbuf_del_buf_tail()
260 		cbuf->end %= cbuf->maxlen;  in cirbuf_del_buf_tail()
273 		cbuf->start %= cbuf->maxlen;  in __cirbuf_del_head()
300 		cbuf->end  += (cbuf->maxlen - 1);  in __cirbuf_del_tail()
301 		cbuf->end %= cbuf->maxlen;  in __cirbuf_del_tail()
342 		if (n <= cbuf->maxlen - cbuf->start) {  in cirbuf_get_buf_head()
348 				cbuf->maxlen - cbuf->start);  in cirbuf_get_buf_head()
349 			dprintf("s[%d] -> d[%d] (%d)\n", 0, cbuf->maxlen - cbuf->start,  in cirbuf_get_buf_head()
350 				n - cbuf->maxlen + cbuf->start);  in cirbuf_get_buf_head()
351 			memcpy(c, cbuf->buf + cbuf->start , cbuf->maxlen - cbuf->start);  in cirbuf_get_buf_head()
352 			memcpy(c + cbuf->maxlen - cbuf->start, cbuf->buf,  in cirbuf_get_buf_head()
353 				   n - cbuf->maxlen + cbuf->start);  in cirbuf_get_buf_head()
386 				cbuf->maxlen - cbuf->start, cbuf->end + 1);  in cirbuf_get_buf_tail()
388 				cbuf->maxlen - n + cbuf->end + 1, 0, n - cbuf->end - 1);  in cirbuf_get_buf_tail()
389 			memcpy(c + cbuf->maxlen - cbuf->start,  in cirbuf_get_buf_tail()
391 			memcpy(c, cbuf->buf + cbuf->maxlen - n + cbuf->end +1,  in cirbuf_get_buf_tail()