pset.h

/*
 * This file is part of libFirm.
 * Copyright (C) 2012 University of Karlsruhe.
 */

#ifndef FIRM_ADT_PSET_H
#define FIRM_ADT_PSET_H

#include <stddef.h>

#include "hashptr.h"

#include "../begin.h"

FIRM_API int pset_default_ptr_cmp(void const *x, void const *y);

typedef struct pset pset;

#define pset_insert_ptr(set,key)  pset_insert(set, key, hash_ptr(key))

#define pset_hinsert_ptr(set,key) pset_hinsert(set, key, hash_ptr(key))

#define pset_remove_ptr(set,key)  pset_remove(set, key, hash_ptr(key))

#define pset_find_ptr(set,key)    pset_find(set, key, hash_ptr(key))

#define pset_new_ptr(slots)       new_pset(pset_default_ptr_cmp, slots)

#define pset_new_ptr_default()    pset_new_ptr(64)

typedef struct {
  unsigned hash; 
  void    *dptr; 
} pset_entry;

typedef int (*pset_cmp_fun) (void const *elt, void const *key);

FIRM_API pset *new_pset(pset_cmp_fun func, size_t slots);

FIRM_API void del_pset(pset *pset);

FIRM_API size_t pset_count(pset const *pset);

FIRM_API void *pset_find(pset *pset, void const *key, unsigned hash);

FIRM_API void *pset_insert(pset *pset, void const *key, unsigned hash);

FIRM_API pset_entry *pset_hinsert(pset *pset, void const *key, unsigned hash);

FIRM_API void *pset_remove(pset *pset, void const *key, unsigned hash);

FIRM_API void *pset_first(pset *pset);

#define pset_first(type, pset) ((type*)pset_first((pset)))

FIRM_API void *pset_next(pset *pset);

#define pset_next(type, pset) ((type*)pset_next((pset)))

FIRM_API void pset_break(pset *pset);

#define foreach_pset(pset, type, entry) for (type *entry = pset_first(type, pset); entry; entry = pset_next(type, pset))

FIRM_API void pset_insert_pset_ptr(pset *target, pset *src);

#define new_pset(cmp, slots) ((new_pset) ((cmp), (slots)))
#define pset_find(pset, key, hash) \
  _pset_search ((pset), (key), (hash), _pset_find)
#define pset_insert(pset, key, hash) \
  _pset_search ((pset), (key), (hash), _pset_insert)
#define pset_hinsert(pset, key, hash) \
  ((pset_entry *)_pset_search ((pset), (key), (hash), _pset_hinsert))

typedef enum { _pset_find, _pset_insert, _pset_hinsert } _pset_action;

FIRM_API void *_pset_search(pset *set, void const *key, unsigned hash,
                            _pset_action action);

#include "../end.h"

#endif