1  #include <stdlib.h>
       2  
       3  struct hashmap_entry {
       4  	struct hashmap_entry *next;
       5  	unsigned int hash;
       6  };
       7  
       8  struct strbuf {
       9  	size_t alloc;
      10  	size_t len;
      11  	char *buf;
      12  };
      13  
      14  struct oid2strbuf {
      15  	struct hashmap_entry ent; /* must be the first member! */
      16  	unsigned char key[21];
      17  	struct strbuf *value;
      18  };
      19  
      20  
      21  struct hashmap_iter {
      22  	struct hashmap *map;
      23  	struct hashmap_entry *next;
      24  	unsigned int tablepos;
      25  };
      26  
      27  struct hashmap {
      28  	struct hashmap_entry **table;
      29  	// hashmap_cmp_fn cmpfn;
      30  	unsigned int size, tablesize, grow_at, shrink_at;
      31  	unsigned disallow_rehash : 1;
      32  };
      33  void strbuf_init(struct strbuf *, size_t);
      34  void *hashmap_iter_next(struct hashmap_iter *iter);
      35  void hashmap_free(struct hashmap *map, int free_entries);
      36  void hashmap_iter_init(struct hashmap *map, struct hashmap_iter *iter);
      37  
      38  void strbuf_release(struct strbuf *sb)
      39  {
      40  	if (sb->alloc) {  /* { dg-bogus "use after 'free'" } */
      41  		free(sb->buf);
      42  		strbuf_init(sb, 0);
      43  	}
      44  }
      45  
      46  void oid2strbuf_free(struct hashmap *map) {
      47  	struct hashmap_iter iter;
      48  	struct hashmap_entry *e;
      49  
      50  	hashmap_iter_init(map, &iter);
      51  	while ((e = hashmap_iter_next(&iter))) {
      52  		struct oid2strbuf *e_strbuf = (struct oid2strbuf *)e;
      53  		strbuf_release(e_strbuf->value); /* { dg-bogus "use after 'free'" } */
      54  		free(e_strbuf->value);
      55  		free(e);
      56  	}
      57  
      58  	hashmap_free(map, 0);
      59  }
      60