75     chdr->r_index = 0;  in cbuf_init()
98     size_t until_end = chdr->size - chdr->r_index;  in cbuf_get_w_index()
100         return chdr->r_index + chdr->used;  in cbuf_get_w_index()
129     size_t bytes_to_end = chdr->size - chdr->r_index;  in cbuf_read_unsafe()
131         copy_into(data, data_offset, buf_data, chdr->r_index, numbytes);  in cbuf_read_unsafe()
133             chdr->r_index += numbytes;  in cbuf_read_unsafe()
137         copy_into(data, data_offset, buf_data, chdr->r_index, bytes_to_end);  in cbuf_read_unsafe()
140             chdr->r_index = numbytes - bytes_to_end;  in cbuf_read_unsafe()
163     oldpos = chdr->r_index;  in cbuf_read_offset()
164     chdr->r_index = (chdr->r_index + offset) % chdr->size;  in cbuf_read_offset()
166     chdr->r_index = oldpos;  in cbuf_read_offset()
175     chdr->r_index = (chdr->r_index + numbytes) % chdr->size;  in cbuf_pop()
248     size_t move_to_start_idx = chdr->r_index;  in cbuf_contiguify()
266     chdr->r_index = 0;  in cbuf_contiguify()
270     size_t until_end = chdr->size - chdr->r_index;  in cbuf_reference()
273         first->mData = &chdr->buf[chdr->r_index];  in cbuf_reference()
277         first->mData = &chdr->buf[chdr->r_index];  in cbuf_reference()