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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 "lwip/mem.h"

#include "lwip/memp.h"

#ifdef __cplusplus

extern "C" {

#endif

#if LWIP_STATS

#ifndef LWIP_STATS_LARGE

#define LWIP_STATS_LARGE 0

#endif

#if LWIP_STATS_LARGE

#define STAT_COUNTER     u32_t

#define STAT_COUNTER_F   U32_F

#else

#define STAT_COUNTER     u16_t

#define STAT_COUNTER_F   U16_F

#endif 

struct stats_proto {

  STAT_COUNTER xmit;             /* Transmitted packets. */

  STAT_COUNTER recv;             /* Received packets. */

  STAT_COUNTER fw;               /* Forwarded packets. */

  STAT_COUNTER drop;             /* Dropped packets. */

  STAT_COUNTER chkerr;           /* Checksum error. */

  STAT_COUNTER lenerr;           /* Invalid length error. */

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

  STAT_COUNTER rterr;            /* Routing error. */

  STAT_COUNTER proterr;          /* Protocol error. */

  STAT_COUNTER opterr;           /* Error in options. */

  STAT_COUNTER err;              /* Misc error. */

  STAT_COUNTER cachehit;

};

struct stats_igmp {

  STAT_COUNTER lenerr;           /* Invalid length error. */

  STAT_COUNTER chkerr;           /* Checksum error. */

  STAT_COUNTER v1_rxed;          /* */

  STAT_COUNTER join_sent;        /* */

  STAT_COUNTER leave_sent;       /* */

  STAT_COUNTER unicast_query;    /* */

  STAT_COUNTER report_sent;      /* */

  STAT_COUNTER report_rxed;      /* */

  STAT_COUNTER group_query_rxed; /* */

};

struct stats_mem {

  mem_size_t avail;

  mem_size_t used;

  mem_size_t max;

  STAT_COUNTER err;

  STAT_COUNTER illegal;

};

struct stats_syselem {

  STAT_COUNTER used;

  STAT_COUNTER max;

  STAT_COUNTER err;

};

struct stats_sys {

  struct stats_syselem sem;

  struct stats_syselem mbox;

};

struct stats_ {

#if LINK_STATS

  struct stats_proto link;

#endif

#if ETHARP_STATS

  struct stats_proto etharp;

#endif

#if IPFRAG_STATS

  struct stats_proto ip_frag;

#endif

#if IP_STATS

  struct stats_proto ip;

#endif

#if ICMP_STATS

  struct stats_proto icmp;

#endif

#if IGMP_STATS

  struct stats_igmp igmp;

#endif

#if UDP_STATS

  struct stats_proto udp;

#endif

#if TCP_STATS

  struct stats_proto tcp;

#endif

#if MEM_STATS

  struct stats_mem mem;

#endif

#if MEMP_STATS

  struct stats_mem memp[MEMP_MAX];

#endif

#if SYS_STATS

  struct stats_sys sys;

#endif

};

extern struct stats_ lwip_stats;

#define stats_init() /* Compatibility define, not init needed. */

#define STATS_INC(x) ++lwip_stats.x

#define STATS_DEC(x) --lwip_stats.x

#else

#define stats_init()

#define STATS_INC(x)

#define STATS_DEC(x)

#endif /* LWIP_STATS */

#if TCP_STATS

#define TCP_STATS_INC(x) STATS_INC(x)

#define TCP_STATS_DISPLAY() stats_display_proto(&lwip_stats.tcp, "TCP")

#else

#define TCP_STATS_INC(x)

#define TCP_STATS_DISPLAY()

#endif

#if UDP_STATS

#define UDP_STATS_INC(x) STATS_INC(x)

#define UDP_STATS_DISPLAY() stats_display_proto(&lwip_stats.udp, "UDP")

#else

#define UDP_STATS_INC(x)

#define UDP_STATS_DISPLAY()

#endif

#if ICMP_STATS

#define ICMP_STATS_INC(x) STATS_INC(x)

#define ICMP_STATS_DISPLAY() stats_display_proto(&lwip_stats.icmp, "ICMP")

#else

#define ICMP_STATS_INC(x)

#define ICMP_STATS_DISPLAY()

#endif

#if IGMP_STATS

#define IGMP_STATS_INC(x) STATS_INC(x)

#define IGMP_STATS_DISPLAY() stats_display_igmp(&lwip_stats.igmp)

#else

#define IGMP_STATS_INC(x)

#define IGMP_STATS_DISPLAY()

#endif

#if IP_STATS

#define IP_STATS_INC(x) STATS_INC(x)

#define IP_STATS_DISPLAY() stats_display_proto(&lwip_stats.ip, "IP")

#else

#define IP_STATS_INC(x)

#define IP_STATS_DISPLAY()

#endif

#if IPFRAG_STATS

#define IPFRAG_STATS_INC(x) STATS_INC(x)

#define IPFRAG_STATS_DISPLAY() stats_display_proto(&lwip_stats.ip_frag, "IP_FRAG")

#else

#define IPFRAG_STATS_INC(x)

#define IPFRAG_STATS_DISPLAY()

#endif

#if ETHARP_STATS

#define ETHARP_STATS_INC(x) STATS_INC(x)

#define ETHARP_STATS_DISPLAY() stats_display_proto(&lwip_stats.etharp, "ETHARP")

#else

#define ETHARP_STATS_INC(x)

#define ETHARP_STATS_DISPLAY()

#endif

#if LINK_STATS

#define LINK_STATS_INC(x) STATS_INC(x)

#define LINK_STATS_DISPLAY() stats_display_proto(&lwip_stats.link, "LINK")

#else

#define LINK_STATS_INC(x)

#define LINK_STATS_DISPLAY()

#endif

#if MEM_STATS

#define MEM_STATS_AVAIL(x, y) lwip_stats.mem.x = y

#define MEM_STATS_INC(x) STATS_INC(mem.x)

#define MEM_STATS_INC_USED(x, y) do { lwip_stats.mem.used += y; \

                                    if (lwip_stats.mem.max < lwip_stats.mem.used) { \

                                        lwip_stats.mem.max = lwip_stats.mem.used; \

                                    } \

                                 } while(0)

#define MEM_STATS_DEC_USED(x, y) lwip_stats.mem.x -= y

#define MEM_STATS_DISPLAY() stats_display_mem(&lwip_stats.mem, "HEAP")

#else

#define MEM_STATS_AVAIL(x, y)

#define MEM_STATS_INC(x)

#define MEM_STATS_INC_USED(x, y)

#define MEM_STATS_DEC_USED(x, y)

#define MEM_STATS_DISPLAY()

#endif

#if MEMP_STATS

#define MEMP_STATS_AVAIL(x, i, y) lwip_stats.memp[i].x = y

#define MEMP_STATS_INC(x, i) STATS_INC(memp[i].x)

#define MEMP_STATS_DEC(x, i) STATS_DEC(memp[i].x)

#define MEMP_STATS_INC_USED(x, i) do { ++lwip_stats.memp[i].used; \

                                    if (lwip_stats.memp[i].max < lwip_stats.memp[i].used) { \

                                        lwip_stats.memp[i].max = lwip_stats.memp[i].used; \

                                    } \

                                 } while(0)

#define MEMP_STATS_DISPLAY(i) stats_display_memp(&lwip_stats.memp[i], i)

#else

#define MEMP_STATS_AVAIL(x, i, y)

#define MEMP_STATS_INC(x, i)

#define MEMP_STATS_DEC(x, i)

#define MEMP_STATS_INC_USED(x, i)

#define MEMP_STATS_DISPLAY(i)

#endif

#if SYS_STATS

#define SYS_STATS_INC(x) STATS_INC(sys.x)

#define SYS_STATS_DEC(x) STATS_DEC(sys.x)

#define SYS_STATS_DISPLAY() stats_display_sys(&lwip_stats.sys)

#else

#define SYS_STATS_INC(x)

#define SYS_STATS_DEC(x)

#define SYS_STATS_DISPLAY()

#endif

/* Display of statistics */

#if LWIP_STATS_DISPLAY

void stats_display(void);

void stats_display_proto(struct stats_proto *proto, char *name);

void stats_display_igmp(struct stats_igmp *igmp);

void stats_display_mem(struct stats_mem *mem, char *name);

void stats_display_memp(struct stats_mem *mem, int index);

void stats_display_sys(struct stats_sys *sys);

#else

#define stats_display()

#define stats_display_proto(proto, name)

#define stats_display_igmp(igmp)

#define stats_display_mem(mem, name)

#define stats_display_memp(mem, index)

#define stats_display_sys(sys)

#endif /* LWIP_STATS_DISPLAY */

#ifdef __cplusplus

}

#endif

#endif /* __LWIP_STATS_H__ */