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/*-------------------------------------------------------------------------
*
* hasht.c
* hash table related functions that are not directly supported
* by the hashing packages under utils/hash.
*
* Copyright (c) 1994, Regents of the University of California
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/lib/Attic/hasht.c,v 1.11 1999/07/16 04:58:56 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#include "postgres.h"
#include "lib/hasht.h"
#include "utils/memutils.h"
/* -----------------------------------
* HashTableWalk
*
* call function on every element in hashtable
* one extra argument, arg may be supplied
* -----------------------------------
*/
void
HashTableWalk(HTAB *hashtable, HashtFunc function, int arg)
{
long *hashent;
long *data;
int keysize;
keysize = hashtable->hctl->keysize;
hash_seq((HTAB *) NULL);
while ((hashent = hash_seq(hashtable)) != (long *) TRUE)
{
if (hashent == NULL)
elog(FATAL, "error in HashTableWalk.");
/*
* XXX the corresponding hash table insertion does NOT LONGALIGN
* -- make sure the keysize is ok
*/
data = (long *) LONGALIGN((char *) hashent + keysize);
(*function) (data, arg);
}
}
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