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       /*
 
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        Copyright (c) 2003, Dominik Reichl <dominik.reichl@t-online.de>
 
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        All rights reserved.
 
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        LICENSE TERMS
 
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        Redistribution and use in source and binary forms, with or without
 
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        modification, are permitted provided that the following conditions are met:
 
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        * Redistributions of source code must retain the above copyright notice, this
 
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          list of conditions and the following disclaimer.
 
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        * Redistributions in binary form must reproduce the above copyright notice,
 
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          this list of conditions and the following disclaimer in the documentation
 
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          and/or other materials provided with the distribution.
 
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        * Neither the name of ReichlSoft nor the names of its contributors may be used
 
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          to endorse or promote products derived from this software without specific
 
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          prior written permission.
 
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        DISCLAIMER
 
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        THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 
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        AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 
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        IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 
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        DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
 
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        FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 
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        DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 
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        SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 
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        CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 
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        OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 
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        OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
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       */
 
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       #include "benchmark.h"
 
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       CHashBenchmark::CHashBenchmark()
 
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       {
 
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       }
 
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       CHashBenchmark::~CHashBenchmark()
 
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       {
 
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       }
 
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       void CHashBenchmark::RunBenchmark()
 
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       {
 
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       	CHashAlgorithm *pAlgorithms[RH_MAX_ALGORITHMS];
 
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       	UINTPREF i;
 
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       	CHashAlgorithm *pAlgo;
 
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       	RH_DATA_INFO rhInfo;
 
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       	UWORD8 pBuf[HBENCH_BUFFER_SIZE];
 
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       	clock_t tStart, tCur;
 
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       	UINTPREF uClicks;
 
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       	UINTPREF uLoops;
 
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       	UINTPREF uUnit;
 
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       	RH_ASSERT(pAlgorithms != NULL);
 
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       	RH_ASSERT(pBuf != NULL);
 
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       	FillAlgorithmList(pAlgorithms);
 
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       	rhInfo.pszFileName = "Test";
 
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       	rhInfo.uDataLen = 0xFFFFFFFD;
 
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       	printf("Algorithm                | Hash length | Hashed bytes/second");
 
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       	rhNewLine();
 
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       	printf("============================================================");
 
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       	rhNewLine();
 
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       	// Fill the benchmark buffer with something
 
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       	for(i = 0; i < HBENCH_BUFFER_SIZE; i++)
 
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       		pBuf[i] = (UWORD8)(((i << 3) % 256) + i);
 
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       	i = 0;
 
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       	while(1)
 
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       	{
 
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       		if(pAlgorithms[i] == NULL) break;
 
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       		pAlgo = pAlgorithms[i];
 
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       		pAlgo->Init(&rhInfo);
 
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       		uLoops = 0;
 
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       		tStart = clock();
 
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       		while(1)
 
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       		{
 
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       			pAlgo->Update(pBuf, HBENCH_BUFFER_SIZE);
 
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       			uLoops++;
 
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       			tCur = clock();
 
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       			uClicks = (UWORD32)((tCur - tStart) / CLOCKS_PER_SEC);
 
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       			if(uClicks >= 2) break; // Test each algorithm for 2 seconds
 
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       		}
 
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       		pAlgo->Final();
 
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       		uLoops /= 2; // Divide by 2 to get bytes/sec
 
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       		uUnit = 0;
 
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       		uLoops *= HBENCH_BUFFER_SIZE;
 
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       		if(uLoops > (1024 << 1)) { uLoops /= 1024; uUnit++; }
 
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       		if(uLoops > (1024 << 1)) { uLoops /= 1024; uUnit++; }
 
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       		if(uLoops > (1024 << 1)) { uLoops /= 1024; uUnit++; }
 
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       		if(uLoops > (1024 << 1)) { uLoops /= 1024; uUnit++; }
 
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       		printf("%-24s | %6u bits | %16u",
 
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       			pAlgo->GetName(), pAlgo->GetLength() << 3, uLoops);
 
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       		if(uUnit == 0) printf("  B");
 
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       		if(uUnit == 1) printf(" KB");
 
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       		if(uUnit == 2) printf(" MB");
 
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       		if(uUnit == 3) printf(" GB");
 
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       		if(uUnit == 4) printf(" TB");
 
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       		rhNewLine();
 
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       		delete pAlgorithms[i];
 
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       		pAlgorithms[i] = NULL;
 
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       		i++;
 
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       	}
 
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       }
 
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