[BACK]Return to cache.h CVS log [TXT][DIR] Up to [local] / src / usr.bin / systat
File: [local] / src / usr.bin / systat / cache.h (download)

Revision 1.5, Sat Jan 16 03:30:26 2016 UTC (8 years, 4 months ago) by canacar
Branch: MAIN
CVS Tags: OPENBSD_6_4_BASE, OPENBSD_6_4, OPENBSD_6_3_BASE, OPENBSD_6_3, OPENBSD_6_2_BASE, OPENBSD_6_2, OPENBSD_6_1_BASE, OPENBSD_6_1, OPENBSD_6_0_BASE, OPENBSD_6_0, OPENBSD_5_9_BASE, OPENBSD_5_9
Changes since 1.4: +2 -2 lines 

fix a number of minor issues in the state view:

1. peak and rate computations were using uint32 size which caused
the fields from working for states that transferred more than 4GB
also fix an unnecessary cast to double found while looking for the bug.

2. When creating new cache entries for existing states, start time from
0 rather than the current time to prevent a "spike" in rate and peak.

/* $Id: cache.h,v 1.5 2016/01/16 03:30:26 canacar Exp $ */
/*
 * Copyright (c) 2001, 2007 Can Erkin Acar <canacar@openbsd.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef _CACHE_H_
#define _CACHE_H_

#include <sys/queue.h>
#include <sys/tree.h>
#include <net/pfvar.h>

struct sc_ent {
	RB_ENTRY(sc_ent)    tlink;
	TAILQ_ENTRY(sc_ent) qlink;
	u_int64_t	    id;
	u_int32_t	    creatorid;
	double		    peak;
	double		    rate;
	time_t		    t;
	u_int64_t	    bytes;
};

int cache_init(int);
void cache_endupdate(void);
struct sc_ent *cache_state(struct pfsync_state *);
extern int cache_max, cache_size;

#define COUNTER(c) ((((u_int64_t) ntohl(c[0]))<<32) + ntohl(c[1]))

#endif