+/*-
+ * Copyright (c) <2010>, Intel Corporation
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * - Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
/*
* Copyright (c) 2009, Olivier MATZ <zer0@droids-corp.org>
* All rights reserved.
#define CIRBUF_GET_MAXLEN(cirbuf) ((cirbuf)->maxlen)
/**
- * return the number of free elts
+ * return the number of free elts
*/
#define CIRBUF_GET_FREELEN(cirbuf) ((cirbuf)->maxlen - (cirbuf)->len)
i ++, e=(c)->buf[((c)->start+i)%((c)->maxlen)])
-/**
+/**
* Add a character at head of the circular buffer. Return 0 on success, or
* a negative value on error.
*/
int cirbuf_add_head_safe(struct cirbuf *cbuf, char c);
-/**
+/**
* Add a character at head of the circular buffer. You _must_ check that you
* have enough free space in the buffer before calling this func.
*/
void cirbuf_add_head(struct cirbuf *cbuf, char c);
-/**
+/**
* Add a character at tail of the circular buffer. Return 0 on success, or
* a negative value on error.
*/
int cirbuf_add_tail_safe(struct cirbuf *cbuf, char c);
-/**
+/**
* Add a character at tail of the circular buffer. You _must_ check that you
* have enough free space in the buffer before calling this func.
*/
void cirbuf_add_tail(struct cirbuf *cbuf, char c);
-/**
+/**
* Remove a char at the head of the circular buffer. Return 0 on
* success, or a negative value on error.
*/
int cirbuf_del_head_safe(struct cirbuf *cbuf);
-/**
+/**
* Remove a char at the head of the circular buffer. You _must_ check
* that buffer is not empty before calling the function.
*/
void cirbuf_del_head(struct cirbuf *cbuf);
-/**
+/**
* Remove a char at the tail of the circular buffer. Return 0 on
* success, or a negative value on error.
*/
int cirbuf_del_tail_safe(struct cirbuf *cbuf);
-/**
+/**
* Remove a char at the tail of the circular buffer. You _must_ check
* that buffer is not empty before calling the function.
*/
*/
char cirbuf_get_tail(struct cirbuf *cbuf);
-/**
+/**
* Add a buffer at head of the circular buffer. 'c' is a pointer to a
* buffer, and n is the number of char to add. Return the number of
* copied bytes on success, or a negative value on error.
*/
int cirbuf_add_buf_head(struct cirbuf *cbuf, const char *c, unsigned int n);
-/**
+/**
* Add a buffer at tail of the circular buffer. 'c' is a pointer to a
* buffer, and n is the number of char to add. Return the number of
* copied bytes on success, or a negative value on error.
*/
int cirbuf_add_buf_tail(struct cirbuf *cbuf, const char *c, unsigned int n);
-/**
+/**
* Remove chars at the head of the circular buffer. Return 0 on
* success, or a negative value on error.
*/
int cirbuf_del_buf_head(struct cirbuf *cbuf, unsigned int size);
-/**
+/**
* Remove chars at the tail of the circular buffer. Return 0 on
* success, or a negative value on error.
*/
int cirbuf_del_buf_tail(struct cirbuf *cbuf, unsigned int size);
-/**
+/**
* Copy a maximum of 'size' characters from the head of the circular
* buffer to a flat one pointed by 'c'. Return the number of copied
* chars.
*/
int cirbuf_get_buf_head(struct cirbuf *cbuf, char *c, unsigned int size);
-/**
+/**
* Copy a maximum of 'size' characters from the tail of the circular
* buffer to a flat one pointed by 'c'. Return the number of copied
* chars.
int cirbuf_get_buf_tail(struct cirbuf *cbuf, char *c, unsigned int size);
-/**
+/**
* Set the start of the data to the index 0 of the internal buffer.
*/
void cirbuf_align_left(struct cirbuf *cbuf);
-/**
+/**
* Set the end of the data to the last index of the internal buffer.
*/
void cirbuf_align_right(struct cirbuf *cbuf);