39   buffer_t *buffer = osi_calloc(sizeof(buffer_t) + size);  in buffer_new()  local
41   buffer->root = buffer;  in buffer_new()
42   buffer->refcount = 1;  in buffer_new()
43   buffer->length = size;  in buffer_new()
45   return buffer;  in buffer_new()
69 void buffer_free(buffer_t *buffer) {  in buffer_free()  argument
70   if (!buffer)  in buffer_free()
73   if (buffer->root != buffer) {  in buffer_free()
75     if (--buffer->root->refcount == 0)  in buffer_free()
76       osi_free(buffer->root);  in buffer_free()
77     osi_free(buffer);  in buffer_free()
78   } else if (--buffer->refcount == 0) {  in buffer_free()
80     osi_free(buffer);  in buffer_free()