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/*
* general-purpose in-core hashing
*/
/* The authors make no claims as to the fitness or correctness of this software
* for any use whatsoever, and it is provided as is. Any use of this software
* is at the user's own risk.
*/
#define HASHDATUM struct hashdatum
HASHDATUM {
char *dat_ptr;
unsigned dat_len;
};
#ifndef HASHTABLE
#define HASHTABLE struct hashtable
#endif
EXT HASHTABLE *hashcreate _((unsigned, int(*)()));
EXT void hashdestroy _((HASHTABLE*));
EXT void hashstore _((HASHTABLE*,char*,int,HASHDATUM));
EXT void hashdelete _((HASHTABLE*,char*,int));
EXT HASHDATUM hashfetch _((HASHTABLE*,char*,int));
EXT void hashstorelast _((HASHDATUM));
EXT void hashwalk _((HASHTABLE*,void(*)(),int));
/* Internal stuff */
#ifdef DOINIT
#define BADTBL(tbl) ((tbl)->ht_magic != HASHMAG)
#define HASHMAG ((char)0257)
#define HASHENT struct hashent
HASHENT {
HASHENT *he_next; /* in hash chain */
HASHDATUM he_data;
int he_keylen; /* to help verify a match */
};
HASHTABLE {
HASHENT **ht_addr; /* array of HASHENT pointers */
unsigned ht_size;
char ht_magic;
int (*ht_cmp)();
};
#endif
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