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/*
* Copyright (c) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
* 2002, 2003, 2004
* Ohio University.
*
* ---
*
* Starting with the release of tcptrace version 6 in 2001, tcptrace
* is licensed under the GNU General Public License (GPL). We believe
* that, among the available licenses, the GPL will do the best job of
* allowing tcptrace to continue to be a valuable, freely-available
* and well-maintained tool for the networking community.
*
* Previous versions of tcptrace were released under a license that
* was much less restrictive with respect to how tcptrace could be
* used in commercial products. Because of this, I am willing to
* consider alternate license arrangements as allowed in Section 10 of
* the GNU GPL. Before I would consider licensing tcptrace under an
* alternate agreement with a particular individual or company,
* however, I would have to be convinced that such an alternative
* would be to the greater benefit of the networking community.
*
* ---
*
* This file is part of Tcptrace.
*
* Tcptrace was originally written and continues to be maintained by
* Shawn Ostermann with the help of a group of devoted students and
* users (see the file 'THANKS'). The work on tcptrace has been made
* possible over the years through the generous support of NASA GRC,
* the National Science Foundation, and Sun Microsystems.
*
* Tcptrace 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 2 of the License, or
* (at your option) any later version.
*
* Tcptrace 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 Tcptrace (in the file 'COPYING'); if not, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
* Author: Shawn Ostermann
* School of Electrical Engineering and Computer Science
* Ohio University
* Athens, OH
* ostermann@cs.ohiou.edu
* http://www.tcptrace.org/
*/
static char const GCC_UNUSED rcsid_gcache[] =
"@(#)$Header: /usr/local/cvs/tcptrace/gcache.h,v 5.4 2003/11/19 14:38:07 sdo Exp $";
/* gcache.h -- a general purpose caching mechanism */
/* types used throughout */
typedef u_short tcelen; /* length of a cached entry */
typedef u_short tceix; /* index of a cached entry */
typedef u_int thval; /* type of the hashed value of a key */
typedef time_t ttstamp; /* type of a timestamp */
/* configuration constants */
#define CA_MAXENTRIES 255 /* max entries in a single cache */
#define CA_MAXKEY 500 /* max size of a key */
#define CA_MAXRES 500 /* max size of a result */
#define CA_NAMELEN 15 /* max length of the name of a cache */
#define CA_NUMCACHES 10 /* max caches in the system */
#define BADCID -1
#define ISBADCACHE(cid) ((cid < 0) || (cid > CA_NUMCACHES))
/* definition of the interface routines */
int cacreate(char *, int, int);
int cadestroy(int);
int cainsert(int, char *, tcelen, char *, tcelen);
int calookup(int, char *, tcelen, char *, tcelen *);
int capurge(int);
int caremove(int, char *, tcelen);
void cadump(void);
int cainit(void);
/* common defines */
#define TRUE 1
#define FALSE 0
#define OK 0
#define SYSERR -1
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