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/*
* %CopyrightBegin%
*
* Copyright Ericsson AB 1998-2016. 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 "reg.h"
static ei_bucket *do_purge(ei_reg *reg, int i)
{
ei_hash *tab = reg->tab;
ei_bucket *head = tab->tab[i];
ei_bucket *this, *next;
ei_reg_obj *obj;
/* first position special case */
while ((this=head)) {
obj = (ei_reg_obj*)(this->value); /* cast to eliminate 'const' warning */
if (obj->attr & EI_DELET) {
head = this->next;
ei_reg_free(reg,obj); /* free obj to freelist */
ei_hash_bfree(tab,this); /* free bucket to freelist */
tab->nelem--;
}
else break;
}
/* check remaining positions */
this = head;
while (this && this->next) {
next = this->next;
obj = (ei_reg_obj*)(next->value); /* cast to eliminate 'const' warning */
if (obj->attr & EI_DELET) {
this->next = next->next;
ei_reg_free(reg,obj); /* free object to freelist */
ei_hash_bfree(tab,next); /* free bucket to freelist */
tab->nelem--;
}
else this = this->next;
}
return head;
}
int ei_reg_purge(ei_reg *reg)
{
ei_hash *tab;
int i;
if (!reg) return -1;
tab = reg->tab;
for (i=0;i<tab->size;i++) {
if ((tab->tab[i])) {
tab->tab[i] = do_purge(reg,i);
if (!tab->tab[i]) tab->npos--;
}
}
return 0;
}
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