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suricata/src/flow-hash.h

56 lines
1.6 KiB
C

/* 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_HASH_H__
#define __FLOW_HASH_H__
/* flow hash bucket -- the hash is basically an array of these buckets.
* Each bucket contains a flow or list of flows. All these flows have
* the same hashkey (the hash is a chained hash). When doing modifications
* to the list, the entire bucket is locked. */
typedef struct FlowBucket_ {
Flow *f;
// SCMutex m;
SCSpinlock s;
} FlowBucket;
/* prototypes */
Flow *FlowGetFlowFromHash(Packet *);
/** enable to print stats on hash lookups in flow-debug.log */
//#define FLOW_DEBUG_STATS
#ifdef FLOW_DEBUG_STATS
void FlowHashDebugInit(void);
void FlowHashDebugDeinit(void);
void FlowHashDebugPrint(uint32_t);
#else
#define FlowHashDebugInit(...)
#define FlowHashDebugPrint(...)
#define FlowHashDebugDeinit(...)
#endif
#endif /* __FLOW_HASH_H__ */