void *ohash_find(struct ohash *, unsigned int);
void *ohash_remove(struct ohash *, unsigned int);
void *ohash_insert(struct ohash *, unsigned int, void *);
void *ohash_find(struct ohash *, unsigned int);
void *ohash_remove(struct ohash *, unsigned int);
void *ohash_insert(struct ohash *, unsigned int, void *);