From 5f07675ff2d234b6658d2600ba234d8b1d053423 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Roland=20H=C3=A4der?= <haeder@hmmdeutschland.de>
Date: Mon, 28 Apr 2014 10:38:01 +0200
Subject: [PATCH] This might be more correct calculation.
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Signed-off-by: Roland Häder <haeder@hmmdeutschland.de>
---
 contrib/chash/chash.php | 90 ++++++++++++++++++-----------------------
 1 file changed, 39 insertions(+), 51 deletions(-)

diff --git a/contrib/chash/chash.php b/contrib/chash/chash.php
index d41a45ba..6dc0eff3 100644
--- a/contrib/chash/chash.php
+++ b/contrib/chash/chash.php
@@ -3,7 +3,7 @@ error_reporting(E_ALL | E_STRICT);
 
 define('HASH_ALGO', MHASH_RIPEMD320);
 define('BLOCK_SIZE', 1000);
-define('NONCE_INCREMENT', 1.0);
+define('NONCE_INCREMENT', 0.00001);
 define('START_TIME', microtime(TRUE));
 
 /**
@@ -181,17 +181,6 @@ function calculateNonce ($nonce) {
 	return $newNonce;
 }
 
-/**
- * Calculates current block
- *
- * @return	$blockSize	Block size
- * @todo	This needs improvement
- */
-function getBlockSize () {
-	// For now only a constant block size
-	return BLOCK_SIZE;
-}
-
 /*
  * Calculate "genesis" hashes, please note that these "genesis strings" are now
  * known to the public as you can read them here in source code and therefore I
@@ -263,10 +252,7 @@ while (TRUE) {
 	// Time waited for a good block again (no iteration)
 	$timeBadHashes = 0;
 
-	while ($hashesPerBlock <= getBlockSize()) {
-		// Init counter
-		$iter = 0;
-
+	while ($hashesPerBlock <= BLOCK_SIZE) {
 		// Create hash from modulaHash ("genesis hash") and nonce
 		$nonceHash = doubleHashString($modulaHash . $nonce);
 
@@ -274,19 +260,37 @@ while (TRUE) {
 		$sumNonce  = calculateSumFromHash($nonceHash);
 		$sumModula = calculateSumFromHash($modulaHash);
 
+		// Init counter
+		$iter = 0;
+
 		// Now start the "mining" ...
 		$timeHash = microtime(TRUE);
-		while ($sumNonce <= $sumModula) {
-			// Calculate sums
-			$sumNonce  = calculateSumFromHash($nonceHash);
-			$sumModula = calculateSumFromHash($modulaHash);
-
+		while ($sumNonce >= $sumModula) {
 			// Calculate new nonce
 			$nonce = calculateNonce($nonce);
 
 			// And hash again
 			$nonceHash = doubleHashString($modulaHash . $nonce);
 
+			// Calculate sums
+			$sumNonce  = calculateSumFromHash($nonceHash);
+			//print('hashesPerBlock=' . $hashesPerBlock . PHP_EOL);
+
+			// Time spend in loop
+			$testTime = abs(microtime(TRUE) - $timeDisplay);
+
+			// Calculate hashrate/sec
+			$hashrate = 1 / $testTime * $iter * 2 + 2;
+
+			// Only every second
+			if ($testTime >= 1) {
+				// Display hash rate
+				print ('hashesPerBlock=' . $hashesPerBlock . ',hashrate=' . $hashrate . ' hashes/sec.' . PHP_EOL);
+
+				// Reset timer
+				$timeDisplay = microtime(TRUE);
+			} // END - if
+
 			// Next round
 			$iter++;
 			//print ('nonce=' . $nonce . ',iter=' . $iter . PHP_EOL);
@@ -295,37 +299,27 @@ while (TRUE) {
 			//print ('sumModula=' . $sumModula . PHP_EOL);
 		} // END - while
 
+		// Add amount of hashes to block (double-hash)
+		$hashesPerBlock += $iter * 2 + 2;
+
 		// If the iteration is zero, then no hash is found
 		if ($iter == 0) {
 			// Bad block found
 			$timeBadHashes += abs(microtime(TRUE) - $timeHash);
 
+			// And next round
+			//print('bad:nonce=' . $nonce . PHP_EOL);
+
 			// Nothing found, so calculate new nonce
 			$nonce = calculateNonce($nonce);
-
-			// And next round
 			continue;
 		} // END - if
 
-		// Add amount of hashes to block (double-hash)
-		$hashesPerBlock += $iter * 2 + 2;
-
-		// Time spend in loop
-		$testTime = abs(microtime(TRUE) - $timeDisplay);
-
-		// Only every second
-		if ($testTime >= 1) {
-			// Calculate hashrate/sec
-			$timeHash = abs(microtime(TRUE) - $timeHash);
-			$hashrate = 1 / $timeHash * $iter * 2 + 2;
-			print ('hashesPerBlock=' . $hashesPerBlock . ',hashrate=' . $hashrate . ' hashes/sec.' . PHP_EOL);
-
-			// Reset timer
-			$timeDisplay = microtime(TRUE);	
-		} // END - if
-
 		// Found hash:
 		//print ('nonceHash=' . $nonceHash .',iter=' . $iter . PHP_EOL);
+
+		// Use nonceHash as next modula hash
+		$modulaHash = $nonceHash;
 	} // END - while
 
 	// Time taken for one block
@@ -333,29 +327,23 @@ while (TRUE) {
 	//print ('calculateSumFromHash(modulaHash)=' . calculateSumFromHash($modulaHash) . PHP_EOL);
 	//print ('calculateSumFromHash(nonceHash)=' . calculateSumFromHash($nonceHash) . PHP_EOL);
 
-	// Is the hash rate unset?
-	if ($hashrate == 0) {
-		// Then calculate it again
-		$hashrate = 1 / $timeBlock * $iter * 2 + 2;
-	} // END - if
-
 	// Calculate reward
-	$reward = abs($timeBlock - $timeBadHashes) / $hashrate * $hashesPerBlock / getBlockSize() * 1000;
-	print ('timeBlock=' . $timeBlock . ',timeBadHashes=' . $timeBadHashes . ',hashesPerBlock=' . $hashesPerBlock .',reward=' . $reward . PHP_EOL);
+	$reward = abs($timeBlock - $timeBadHashes) / $hashrate * $hashesPerBlock / BLOCK_SIZE * 1000;
+	//print ('timeBlock=' . $timeBlock . ',timeBadHashes=' . $timeBadHashes . ',hashesPerBlock=' . $hashesPerBlock .',reward=' . $reward . PHP_EOL);
 
 	// Block completed
 	$totalHashes += $hashesPerBlock;
 	$totalBlocks++;
 	$hashesPerBlock = 0;
 
-	// Use nonceHash as next modula hash
-	$modulaHash = $nonceHash;
+	// Calculate new nonce
+	$nonce = calculateNonce($nonce);
 
 	// Add reward to total
 	$totalReward += $reward;
 
 	// Calculate average block value
-	$blockValue = $totalReward / $totalBlocks * $totalHashes / (getBlockSize() * $totalBlocks);
+	$blockValue = $totalReward / $totalBlocks * $totalHashes / (BLOCK_SIZE * $totalBlocks);
 
 	// Calculate reward per hour (= 3600 seconds)
 	$rewardPerHour = $totalReward / abs(microtime(TRUE) - START_TIME) * 3600;
-- 
2.39.5