path: root/lib/erl_interface/src/registry/hash_lookup.c

/*
 * %CopyrightBegin%
 * 
 * Copyright Ericsson AB 1998-2009. All Rights Reserved.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 * %CopyrightEnd%
 *

 */
#include <stdlib.h>
#include <string.h>
#include "hash.h"

void *ei_hash_lookup(ei_hash *tab, const char *key)
{
  int h, rh;
  ei_bucket *b=NULL;

  rh = tab->hash(key);
  h =  rh % tab->size;
  
  b=tab->tab[h];
  while (b) {
    if ((rh == b->rawhash) && (!strcmp(key,b->key)))
      return (void *)b->value;
    b=b->next;
  }
  return NULL;
}