25 	struct byte_buffer *buf;  in byte_buffer_create()  local
26 	buf = (struct byte_buffer *)  in byte_buffer_create()
28 	if (!buf)  in byte_buffer_create()
29 		return buf;  in byte_buffer_create()
30 	buf->max_size = buffer_size_bytes;  in byte_buffer_create()
31 	buf->used_size = buffer_size_bytes;  in byte_buffer_create()
32 	return buf;  in byte_buffer_create()
35 static inline void byte_buffer_set_used_size(struct byte_buffer *buf,  in byte_buffer_set_used_size()  argument
38 	buf->used_size = MIN(used_size, buf->max_size);  in byte_buffer_set_used_size()
42 static inline void byte_buffer_destroy(struct byte_buffer **buf)  in byte_buffer_destroy()  argument
44 	free(*buf);  in byte_buffer_destroy()
45 	*buf = NULL;  in byte_buffer_destroy()
48 static inline unsigned int buf_writable(struct byte_buffer *buf)  in buf_writable()  argument
50 	if (buf->level >= buf->used_size)  in buf_writable()
52 	if (buf->write_idx < buf->read_idx)  in buf_writable()
53 		return buf->read_idx - buf->write_idx;  in buf_writable()
55 	return buf->used_size - buf->write_idx;  in buf_writable()
58 static inline unsigned int buf_readable(struct byte_buffer *buf)  in buf_readable()  argument
60 	if (buf->level == 0)  in buf_readable()
63 	if (buf->read_idx < buf->write_idx)  in buf_readable()
64 		return buf->write_idx - buf->read_idx;  in buf_readable()
66 	return buf->used_size - buf->read_idx;  in buf_readable()
69 static inline unsigned int buf_queued(struct byte_buffer *buf)  in buf_queued()  argument
71 	return buf->level;  in buf_queued()
74 static inline unsigned int buf_available(const struct byte_buffer *buf)  in buf_available()  argument
76 	return buf->used_size - buf->level;  in buf_available()
79 static inline uint8_t *buf_read_pointer(struct byte_buffer *buf)  in buf_read_pointer()  argument
81 	return &buf->bytes[buf->read_idx];  in buf_read_pointer()
84 static inline uint8_t *buf_read_pointer_size(struct byte_buffer *buf,  in buf_read_pointer_size()  argument
87 	*readable = buf_readable(buf);  in buf_read_pointer_size()
88 	return buf_read_pointer(buf);  in buf_read_pointer_size()
91 static inline void buf_increment_read(struct byte_buffer *buf, size_t inc)  in buf_increment_read()  argument
93 	inc = MIN(inc, buf->level);  in buf_increment_read()
94 	buf->read_idx += inc;  in buf_increment_read()
95 	buf->read_idx %= buf->used_size;  in buf_increment_read()
96 	buf->level -= inc;  in buf_increment_read()
99 static inline uint8_t *buf_write_pointer(struct byte_buffer *buf)  in buf_write_pointer()  argument
101 	return &buf->bytes[buf->write_idx];  in buf_write_pointer()
104 static inline uint8_t *buf_write_pointer_size(struct byte_buffer *buf,  in buf_write_pointer_size()  argument
107 	*writeable = buf_writable(buf);  in buf_write_pointer_size()
108 	return buf_write_pointer(buf);  in buf_write_pointer_size()
111 static inline void buf_increment_write(struct byte_buffer *buf, size_t inc)  in buf_increment_write()  argument
113 	buf->write_idx += inc;  in buf_increment_write()
114 	buf->write_idx %= buf->used_size;  in buf_increment_write()
115 	if (buf->level + inc < buf->used_size)  in buf_increment_write()
116 		buf->level += inc;  in buf_increment_write()
118 		buf->level = buf->used_size;  in buf_increment_write()
121 static inline void buf_reset(struct byte_buffer *buf)  in buf_reset()  argument
123 	buf->write_idx = 0;  in buf_reset()
124 	buf->read_idx = 0;  in buf_reset()
125 	buf->level = 0;  in buf_reset()