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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/*
* Copyright (C) 2009 Alexander Sack <asac@jwsdot.com>
*
* This file is part of:
* ntrack - Network Status Tracking for Desktop Applications
* http://launchpad.net/ntrack
*
* ntrack is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of
* the License, or (at your option) any later version.
*
* ntrack is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with ntrack. If not, see <http://www.gnu.org/licenses/>.
*/
#include "ntrackidpool.h"
#include "ntracklist.h"
#include <assert.h>
#include <stdlib.h>
#define NTRACK_POOL_GEN_SIZE 128
struct _ntrack_id_pool {
ntrack_list_t *pool;
long size;
};
ntrack_id_pool_t*
ntrack_id_pool_new ()
{
ntrack_id_pool_t *self = calloc (sizeof (ntrack_id_pool_t), 1);
self->size = 0;
self->pool = NULL;
return self;
}
long
ntrack_id_pool_acquire (ntrack_id_pool_t *self)
{
long rval;
if (!ntrack_list_size (self->pool)) {
int c = NTRACK_POOL_GEN_SIZE;
while (c) {
self->pool = ntrack_list_insert_sorted_unique (self->pool,
(void*) self->size,
FALSE,
ntrack_compare_direct);
self->size++;
c--;
}
}
rval = (long) self->pool->data;
self->pool = ntrack_list_remove (self->pool, self->pool);
return rval;
}
void
ntrack_id_pool_release (ntrack_id_pool_t *self, long id)
{
assert (id < self->size);
self->pool = ntrack_list_insert_sorted_unique (self->pool,
(void*) id,
FALSE,
ntrack_compare_direct);
}
void
ntrack_id_pool_free (ntrack_id_pool_t *self)
{
while (self->pool)
self->pool = ntrack_list_remove (self->pool, self->pool);
free (self);
}
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