session_cleanup.c

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/**
 * \file
 *
 * \author  Georg Hopp
 *
 * \copyright
 * Copyright © 2012  Georg Hopp
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#define _GNU_SOURCE

#include <stdlib.h>
#include <sys/types.h>

#include "class.h"
#include "session.h"
#include "hash.h"
#include "application/application.h"

#include "utils/memory.h"

void
applicationSessionCleanup(Application this, time_t now)
{
    unsigned int expired = now - this->session_time_ofs;
    unsigned int i       = 0;

    if (SESSION_LIVETIME <= expired) {
        expired = SESSION_LIVETIME;
    }

    if (0 < expired && SESSION_LIVETIME > expired) {
        Hash * tmp_buf = memCalloc(SESSION_LIVETIME, sizeof(Hash));

        memcpy(
                &(tmp_buf[expired]),
                this->active_sessions,
                (SESSION_LIVETIME - expired) * sizeof(Hash));
        memcpy(
                tmp_buf,
                &(this->active_sessions[SESSION_LIVETIME - expired]),
                expired * sizeof(Hash));
                
        MEM_FREE(this->active_sessions);
        this->active_sessions = tmp_buf;
    }

    for (i=0; i<expired; i++) {
        hashCleanup(this->active_sessions[i]);
    }

    this->session_time_ofs = now;
}

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