/* crypto/lhash/lh_stats.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 * 
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 * 
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 * 
 * 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 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from 
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 * 
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``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 OR CONTRIBUTORS 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.
 * 
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
/* If you wish to build this outside of SSLeay, remove the following lines
 * and things should work as expected */
#include "cryptlib.h"

#ifndef OPENSSL_NO_BIO
#include <openssl/bio.h>
#endif
#include <openssl/lhash.h>

#ifdef OPENSSL_NO_BIO

void lh_stats(LHASH *lh, FILE *out)
	{
	fprintf(out,"num_items             = %lu\n",lh->num_items);
	fprintf(out,"num_nodes             = %u\n",lh->num_nodes);
	fprintf(out,"num_alloc_nodes       = %u\n",lh->num_alloc_nodes);
	fprintf(out,"num_expands           = %lu\n",lh->num_expands);
	fprintf(out,"num_expand_reallocs   = %lu\n",lh->num_expand_reallocs);
	fprintf(out,"num_contracts         = %lu\n",lh->num_contracts);
	fprintf(out,"num_contract_reallocs = %lu\n",lh->num_contract_reallocs);
	fprintf(out,"num_hash_calls        = %lu\n",lh->num_hash_calls);
	fprintf(out,"num_comp_calls        = %lu\n",lh->num_comp_calls);
	fprintf(out,"num_insert            = %lu\n",lh->num_insert);
	fprintf(out,"num_replace           = %lu\n",lh->num_replace);
	fprintf(out,"num_delete            = %lu\n",lh->num_delete);
	fprintf(out,"num_no_delete         = %lu\n",lh->num_no_delete);
	fprintf(out,"num_retrieve          = %lu\n",lh->num_retrieve);
	fprintf(out,"num_retrieve_miss     = %lu\n",lh->num_retrieve_miss);
	fprintf(out,"num_hash_comps        = %lu\n",lh->num_hash_comps);
#if 0
	fprintf(out,"p                     = %u\n",lh->p);
	fprintf(out,"pmax                  = %u\n",lh->pmax);
	fprintf(out,"up_load               = %lu\n",lh->up_load);
	fprintf(out,"down_load             = %lu\n",lh->down_load);
#endif
	}

void lh_node_stats(LHASH *lh, FILE *out)
	{
	LHASH_NODE *n;
	unsigned int i,num;

	for (i=0; i<lh->num_nodes; i++)
		{
		for (n=lh->b[i],num=0; n != NULL; n=n->next)
			num++;
		fprintf(out,"node %6u -> %3u\n",i,num);
		}
	}

void lh_node_usage_stats(LHASH *lh, FILE *out)
	{
	LHASH_NODE *n;
	unsigned long num;
	unsigned int i;
	unsigned long total=0,n_used=0;

	for (i=0; i<lh->num_nodes; i++)
		{
		for (n=lh->b[i],num=0; n != NULL; n=n->next)
			num++;
		if (num != 0)
			{
			n_used++;
			total+=num;
			}
		}
	fprintf(out,"%lu nodes used out of %u\n",n_used,lh->num_nodes);
	fprintf(out,"%lu items\n",total);
	if (n_used == 0) return;
	fprintf(out,"load %d.%02d  actual load %d.%02d\n",
		(int)(total/lh->num_nodes),
		(int)((total%lh->num_nodes)*100/lh->num_nodes),
		(int)(total/n_used),
		(int)((total%n_used)*100/n_used));
	}

#else

#ifndef OPENSSL_NO_FP_API
void lh_stats(const _LHASH *lh, FILE *fp)
	{
	BIO *bp;

	bp=BIO_new(BIO_s_file());
	if (bp == NULL) goto end;
	BIO_set_fp(bp,fp,BIO_NOCLOSE);
	lh_stats_bio(lh,bp);
	BIO_free(bp);
end:;
	}

void lh_node_stats(const _LHASH *lh, FILE *fp)
	{
	BIO *bp;

	bp=BIO_new(BIO_s_file());
	if (bp == NULL) goto end;
	BIO_set_fp(bp,fp,BIO_NOCLOSE);
	lh_node_stats_bio(lh,bp);
	BIO_free(bp);
end:;
	}

void lh_node_usage_stats(const _LHASH *lh, FILE *fp)
	{
	BIO *bp;

	bp=BIO_new(BIO_s_file());
	if (bp == NULL) goto end;
	BIO_set_fp(bp,fp,BIO_NOCLOSE);
	lh_node_usage_stats_bio(lh,bp);
	BIO_free(bp);
end:;
	}

#endif

void lh_stats_bio(const _LHASH *lh, BIO *out)
	{
	BIO_printf(out,"num_items             = %lu\n",lh->num_items);
	BIO_printf(out,"num_nodes             = %u\n",lh->num_nodes);
	BIO_printf(out,"num_alloc_nodes       = %u\n",lh->num_alloc_nodes);
	BIO_printf(out,"num_expands           = %lu\n",lh->num_expands);
	BIO_printf(out,"num_expand_reallocs   = %lu\n",
		   lh->num_expand_reallocs);
	BIO_printf(out,"num_contracts         = %lu\n",lh->num_contracts);
	BIO_printf(out,"num_contract_reallocs = %lu\n",
		   lh->num_contract_reallocs);
	BIO_printf(out,"num_hash_calls        = %lu\n",lh->num_hash_calls);
	BIO_printf(out,"num_comp_calls        = %lu\n",lh->num_comp_calls);
	BIO_printf(out,"num_insert            = %lu\n",lh->num_insert);
	BIO_printf(out,"num_replace           = %lu\n",lh->num_replace);
	BIO_printf(out,"num_delete            = %lu\n",lh->num_delete);
	BIO_printf(out,"num_no_delete         = %lu\n",lh->num_no_delete);
	BIO_printf(out,"num_retrieve          = %lu\n",lh->num_retrieve);
	BIO_printf(out,"num_retrieve_miss     = %lu\n",lh->num_retrieve_miss);
	BIO_printf(out,"num_hash_comps        = %lu\n",lh->num_hash_comps);
#if 0
	BIO_printf(out,"p                     = %u\n",lh->p);
	BIO_printf(out,"pmax                  = %u\n",lh->pmax);
	BIO_printf(out,"up_load               = %lu\n",lh->up_load);
	BIO_printf(out,"down_load             = %lu\n",lh->down_load);
#endif
	}

void lh_node_stats_bio(const _LHASH *lh, BIO *out)
	{
	LHASH_NODE *n;
	unsigned int i,num;

	for (i=0; i<lh->num_nodes; i++)
		{
		for (n=lh->b[i],num=0; n != NULL; n=n->next)
			num++;
		BIO_printf(out,"node %6u -> %3u\n",i,num);
		}
	}

void lh_node_usage_stats_bio(const _LHASH *lh, BIO *out)
	{
	LHASH_NODE *n;
	unsigned long num;
	unsigned int i;
	unsigned long total=0,n_used=0;

	for (i=0; i<lh->num_nodes; i++)
		{
		for (n=lh->b[i],num=0; n != NULL; n=n->next)
			num++;
		if (num != 0)
			{
			n_used++;
			total+=num;
			}
		}
	BIO_printf(out,"%lu nodes used out of %u\n",n_used,lh->num_nodes);
	BIO_printf(out,"%lu items\n",total);
	if (n_used == 0) return;
	BIO_printf(out,"load %d.%02d  actual load %d.%02d\n",
		   (int)(total/lh->num_nodes),
		   (int)((total%lh->num_nodes)*100/lh->num_nodes),
		   (int)(total/n_used),
		   (int)((total%n_used)*100/n_used));
	}

#endif