/* * 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_STATSstruct 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_DISPLAYvoid stats_display(void);#else#define stats_display()#endif#endif /* __LWIP_STATS_H__ */