hashtbl.h

   1 /*
   2  * hashtbl.h
   3  *
   4  * Efficient dictionary hash table class.
   5  */
   6
   7 #ifndef NASM_HASHTBL_H
   8 #define NASM_HASHTBL_H
   9
  10 #include <inttypes.h>
  11 #include <stddef.h>
  12 #include "nasmlib.h"
  13
  14 struct hash_tbl_node {
  15     uint64_t hash;
  16     const char *key;
  17     void *data;
  18 };
  19
  20 struct hash_table {
  21     struct hash_tbl_node *table;
  22     size_t load;
  23     size_t size;
  24     size_t max_load;
  25 };
  26
  27 struct hash_insert {
  28     uint64_t hash;
  29     struct hash_table *head;
  30     struct hash_tbl_node *where;
  31 };
  32
  33 uint64_t crc64(uint64_t crc, const char *string);
  34 uint64_t crc64i(uint64_t crc, const char *string);
  35 #define CRC64_INIT UINT64_C(0xffffffffffffffff)
  36
  37 struct hash_table *hash_init(void);
  38 void **hash_find(struct hash_table *head, const char *string,
  39                 struct hash_insert *insert);
  40 void **hash_findi(struct hash_table *head, const char *string,
  41                 struct hash_insert *insert);
  42 void **hash_add(struct hash_insert *insert, const char *string, void *data);
  43 void *hash_iterate(const struct hash_table *head,
  44                    struct hash_tbl_node **iterator,
  45                    const char **key);
  46 void hash_free(struct hash_table *head);
  47
  48 #endif /* NASM_HASHTBL_H */