suricata/src/flow-queue.h

/* Copyright (C) 2007-2010 Open Information Security Foundation
 *
 * You can copy, redistribute or modify this Program under the terms of
 * the GNU General Public License version 2 as published by the Free
 * Software Foundation.
 *
 * 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
 * version 2 along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 */

/**
 * \file
 *
 * \author Victor Julien <victor@inliniac.net>
 */

#ifndef __FLOW_QUEUE_H__
#define __FLOW_QUEUE_H__

#include "suricata-common.h"
#include "flow.h"

/* Define a queue for storing flows */
typedef struct FlowQueue_
{
    Flow *top;
    Flow *bot;
    uint32_t len;
#ifdef DBG_PERF
    uint32_t dbg_maxlen;
#endif /* DBG_PERF */
    SCMutex mutex_q;
    SCCondT cond_q;
} FlowQueue;

/* prototypes */
FlowQueue *FlowQueueNew();
FlowQueue *FlowQueueInit(FlowQueue *);
void FlowQueueDestroy (FlowQueue *);

void FlowEnqueue (FlowQueue *, Flow *);
Flow *FlowDequeue (FlowQueue *);

void FlowRequeue(Flow *, FlowQueue *, FlowQueue *);
void FlowRequeueMoveToBot(Flow *, FlowQueue *);
void FlowRequeueMoveToSpare(Flow *, FlowQueue *);

#endif /* __FLOW_QUEUE_H__ */