void *cache_tree_write(struct cache_tree *root, unsigned long *size_p);
struct cache_tree *cache_tree_read(const char *buffer, unsigned long size);
int cache_tree_fully_valid(struct cache_tree *);
void *cache_tree_write(struct cache_tree *root, unsigned long *size_p);
struct cache_tree *cache_tree_read(const char *buffer, unsigned long size);
int cache_tree_fully_valid(struct cache_tree *);