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/*

 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without modification,

 * are permitted provided that the following conditions are met:

 *

 * 1. Redistributions of source code must retain the above copyright notice,

 *    this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright notice,

 *    this list of conditions and the following disclaimer in the documentation

 *    and/or other materials provided with the distribution.

 * 3. The name of the author may not be used to endorse or promote products

 *    derived from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED

 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT

 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT

 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING

 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY

 * OF SUCH DAMAGE.

 *

 * This file is part of the lwIP TCP/IP stack.

 *

 * Author: Adam Dunkels <adam@sics.se>

 *

 */

#ifndef __LWIP_STATS_H__

#define __LWIP_STATS_H__

#include "lwip/opt.h"

#include "arch/cc.h"

#include "lwip/mem.h"

#include "lwip/memp.h"

#if LWIP_STATS

struct stats_proto {

  u16_t xmit;    /* Transmitted packets. */

  u16_t rexmit;  /* Retransmitted packets. */

  u16_t recv;    /* Received packets. */

  u16_t fw;      /* Forwarded packets. */

  u16_t drop;    /* Dropped packets. */

  u16_t chkerr;  /* Checksum error. */

  u16_t lenerr;  /* Invalid length error. */

  u16_t memerr;  /* Out of memory error. */

  u16_t rterr;   /* Routing error. */

  u16_t proterr; /* Protocol error. */

  u16_t opterr;  /* Error in options. */

  u16_t err;     /* Misc error. */

  u16_t cachehit;

};

struct stats_mem {

  mem_size_t avail;

  mem_size_t used;

  mem_size_t max;

  mem_size_t err;

};

struct stats_pbuf {

  u16_t avail;

  u16_t used;

  u16_t max;

  u16_t err;

  u16_t alloc_locked;

  u16_t refresh_locked;

};

struct stats_syselem {

  u16_t used;

  u16_t max;

  u16_t err;

};

struct stats_sys {

  struct stats_syselem sem;

  struct stats_syselem mbox;

};

struct stats_ {

  struct stats_proto link;

  struct stats_proto ip_frag;

  struct stats_proto ip;

  struct stats_proto icmp;

  struct stats_proto udp;

  struct stats_proto tcp;

  struct stats_pbuf pbuf;

  struct stats_mem mem;

  struct stats_mem memp[MEMP_MAX];

  struct stats_sys sys;

};

extern struct stats_ lwip_stats;

void stats_init(void);

#define STATS_INC(x) ++lwip_stats.x

#else

#define stats_init()

#define STATS_INC(x)

#endif /* LWIP_STATS */

#if TCP_STATS

#define TCP_STATS_INC(x) STATS_INC(x)

#else

#define TCP_STATS_INC(x)

#endif

#if UDP_STATS

#define UDP_STATS_INC(x) STATS_INC(x)

#else

#define UDP_STATS_INC(x)

#endif

#if ICMP_STATS

#define ICMP_STATS_INC(x) STATS_INC(x)

#else

#define ICMP_STATS_INC(x)

#endif

#if IP_STATS

#define IP_STATS_INC(x) STATS_INC(x)

#else

#define IP_STATS_INC(x)

#endif

#if IPFRAG_STATS

#define IPFRAG_STATS_INC(x) STATS_INC(x)

#else

#define IPFRAG_STATS_INC(x)

#endif

#if LINK_STATS

#define LINK_STATS_INC(x) STATS_INC(x)

#else

#define LINK_STATS_INC(x)

#endif

/* Display of statistics */

#if LWIP_STATS_DISPLAY

void stats_display(void);

#else

#define stats_display()

#endif

#endif /* __LWIP_STATS_H__ */