mirror of
https://github.com/OpenVPN/openvpn.git
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52 lines
1.6 KiB
C
52 lines
1.6 KiB
C
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/*
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* OpenVPN -- An application to securely tunnel IP networks
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* over a single TCP/UDP port, with support for SSL/TLS-based
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* session authentication and key exchange,
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* packet encryption, packet authentication, and
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* packet compression.
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*
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* Copyright (C) 2002-2011 OpenVPN Technologies, Inc. <sales@openvpn.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program (see the file COPYING included with this
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* distribution); if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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* Maintain usage stats in a memory-mapped file
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*/
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#if !defined(OPENVPN_MEMSTATS_H) && defined(ENABLE_MEMSTATS)
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#define OPENVPN_MEMSTATS_H
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#include "basic.h"
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/* this struct is mapped to the file */
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struct mmap_stats {
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counter_type link_read_bytes; /* counter_type can be assumed to be a uint64_t */
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counter_type link_write_bytes;
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int n_clients;
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# define MSTATS_UNDEF 0
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# define MSTATS_ACTIVE 1
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# define MSTATS_EXPIRED 2
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int state;
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};
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extern volatile struct mmap_stats *mmap_stats; /* GLOBAL */
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void mstats_open(const char *fn);
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void mstats_close(void);
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#endif
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