tcp_stats.h

/* 
 * $Id$
 * 
 * Copyright (C) 2009 iptelorg GmbH
 *
 * 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.
 */
/*
 * tcp_stats.h - tcp statistics macros
 */
/*
 * History:
 * --------
 *  2009-04-08  initial version (andrei)
*/

#ifndef __tcp_stats_h
#define __tcp_stats_h

/* enable tcp stats by default */
#ifndef NO_TCP_STATS
#define USE_TCP_STATS
#endif

#ifndef USE_TCP_STATS

#define INIT_TCP_STATS() 0 /* success */
#define DESTROY_TCP_STATS()

#define TCP_STATS_ESTABLISHED(state)
#define TCP_STATS_CONNECT_FAILED()
#define TCP_STATS_LOCAL_REJECT()
#define TCP_STATS_CON_TIMEOUT()
#define TCP_STATS_CON_RESET()
#define TCP_STATS_SEND_TIMEOUT()
#define TCP_STATS_SENDQ_FULL()

#else /* USE_TCP_STATS */

#include "counters.h"

struct tcp_counters_h {
        counter_handle_t established;
        counter_handle_t passive_open;
        counter_handle_t connect_success;
        counter_handle_t connect_failed;
        counter_handle_t local_reject;
        counter_handle_t con_timeout;
        counter_handle_t con_reset;
        counter_handle_t send_timeout;
        counter_handle_t sendq_full;
};

extern struct tcp_counters_h tcp_cnts_h;

int tcp_stats_init(void);
void tcp_stats_destroy(void);

#define INIT_TCP_STATS() tcp_stats_init()

#define DESTROY_TCP_STATS() tcp_stats_destroy()


#define TCP_STATS_ESTABLISHED(state) \
        do { \
                counter_inc(tcp_cnts_h.established); \
                if (state == S_CONN_ACCEPT) \
                        counter_inc(tcp_cnts_h.passive_open); \
                else \
                        counter_inc(tcp_cnts_h.connect_success); \
        }while(0)

#define TCP_STATS_CONNECT_FAILED() \
        counter_inc(tcp_cnts_h.connect_failed)

#define TCP_STATS_LOCAL_REJECT() \
        counter_inc(tcp_cnts_h.local_reject)


#define TCP_STATS_CON_TIMEOUT() \
        counter_inc(tcp_cnts_h.con_timeout)


#define TCP_STATS_CON_RESET() \
        counter_inc(tcp_cnts_h.con_reset)

#define TCP_STATS_SEND_TIMEOUT() \
        counter_inc(tcp_cnts_h.send_timeout)

#define TCP_STATS_SENDQ_FULL() \
        counter_inc(tcp_cnts_h.sendq_full)

#endif /* USE_TCP_STATS */

#endif /*__tcp_stats_h*/

/* vi: set ts=4 sw=4 tw=79:ai:cindent: */