Added flushCheckPointFile().

[core.git] / contrib / chash / chash.php

diff --git a/contrib/chash/chash.php b/contrib/chash/chash.php
index f4003c8a60087bc8234c44508a8d4d8a55259170..1bc7f147e5b7c68fb9ac13231c47bd1b9aa47ce1 100644 (file)
--- a/contrib/chash/chash.php
+++ b/contrib/chash/chash.php
@@ -2,9 +2,16 @@
 error_reporting(E_ALL | E_STRICT);
 
 define('HASH_ALGO', MHASH_RIPEMD320);
-define('BLOCK_SIZE', 1000);
-define('NONCE_INCREMENT', 0.0000000001);
+define('BLOCK_SIZE', 100);
+define('NONCE_INCREMENT', 0.0000000000000001);
 define('START_TIME', microtime(TRUE));
+define('CHECK_POINT', 'chash.pos');
+
+// Found hashes
+$foundHashes = array();
+
+// Time when last flush occured
+global $timeFlush;
 
 /**
  * Continued-hashing
@@ -181,6 +188,24 @@ function calculateNonce ($nonce) {
        return $newNonce;
 }
 
+/**
+ * Writes/flushes check-point file
+ *
+ * @return     void
+ */
+function flushCheckPointFile ($nonce, $modulaHash, array $foundHashes) {
+       global $timeFlush;
+
+       // Display message
+       print ('FLUSHING: ' . count($foundHashes) . ' total found.' . PHP_EOL);
+
+       // Flush data
+       file_put_contents(CHECK_POINT, base64_encode($nonce) . ':' . $modulaHash . ':' . base64_encode(serialize($foundHashes)));
+
+       // Set time
+       $timeFlush = microtime(TRUE);
+}
+
 /*
  * 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
@@ -226,6 +251,9 @@ $sqrtHashes = array(
 // Calulcate modula hash
 $modulaHash = doubleHashString(modulaHash($sqrtHashes[0], $sqrtHashes[1]));
 
+// This is also the "genesis hash"
+$genesisHash = $modulaHash;
+
 // Output results
 print ('hashes=' . print_r($hashes, TRUE));
 print ('modulaHashes=' . print_r($modulaHashes, TRUE));
@@ -237,22 +265,46 @@ $totalReward = 0;
 $totalHashes = 0;
 $totalBlocks = 0;
 
-// Create nonce (small)
-$nonce = 1 / mt_rand();
+// Is the check point there?
+if (is_readable(CHECK_POINT)) {
+       // Then load it
+       $checkPoint = file_get_contents(CHECK_POINT);
+
+       // Explode it
+       $data = explode(':', $checkPoint);
+
+       // Assert on count
+       assert(count($data) == 3);
 
+       // 1st element is nonce, 2nd hash, 3rd found hashes
+       $nonce       = base64_decode($data[0]);
+       $modulaHash  = $data[1];
+       $foundHashes = unserialize(base64_decode($data[2]));
+} else {
+       // Create nonce (small)
+       $nonce = 1 / mt_rand();
+}
+
+// Output again
+print ('modulaHash=' . $modulaHash . PHP_EOL);
+print ('nonce=' . $nonce . PHP_EOL);
+print ('found=' . count($foundHashes) . PHP_EOL);
+
+// Start "mining"
 while (TRUE) {
        // Init hash-per-block counter and hashrate
        $hashesPerBlock = 0;
        $hashrate = 0;
 
        // Wait for BLOCK_SIZE iterations (= found hashes). This is one block
-       $timeBlock = microtime(TRUE);
+       $timeBlock   = microtime(TRUE);
        $timeDisplay = $timeBlock;
+       $timeFlush   = $timeBlock;
 
        // Time waited for a good block again (no iteration)
        $timeBadHashes = 0;
 
-       while ($hashesPerBlock <= BLOCK_SIZE) {
+       while (count($foundHashes) <= BLOCK_SIZE) {
                // Create hash from modulaHash ("genesis hash") and nonce
                $nonceHash = doubleHashString($modulaHash . $nonce);
 
@@ -275,7 +327,6 @@ while (TRUE) {
 
                        // Calculate sums
                        $sumNonce  = calculateSumFromHash($nonceHash);
-                       //print('hashesPerBlock=' . $hashesPerBlock . PHP_EOL);
 
                        // Time spend in loop
                        $testTime = abs(microtime(TRUE) - $timeDisplay);
@@ -286,13 +337,22 @@ while (TRUE) {
                        // Only every second
                        if ($testTime >= 1) {
                                // Display hash rate
-                               print ('hashesPerBlock=' . $hashesPerBlock . ',hashrate=' . $hashrate . ' hashes/sec.' . PHP_EOL);
+                               print ('hashrate=' . $hashrate . ' hashes/sec,iterSecond=' . $iterSecond . ' iterations/sec' . PHP_EOL);
 
                                // Reset timer
                                $timeDisplay = microtime(TRUE);
                                $iterSecond  = 0;
                        } // END - if
 
+                       // Time spend from last flush
+                       $testTime = abs(microtime(TRUE) - $timeFlush);
+
+                       // Only once per 10 seconds
+                       if ($testTime >= 10) {
+                               // Flush check-point file
+                               flushCheckPointFile($nonce, $modulaHash, $foundHashes);
+                       } // END - if
+
                        // Next round
                        $iter++;
                        $iterSecond++;
@@ -302,24 +362,37 @@ 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
+                       // Bad hash found
                        $timeBadHashes += abs(microtime(TRUE) - $timeHash);
 
                        // And next round
-                       //print('bad:nonce=' . $nonce . PHP_EOL);
+                       //print('BAD:nonce=' . $nonce . PHP_EOL);
 
                        // Nothing found, so calculate new nonce
                        $nonce = calculateNonce($nonce);
                        continue;
                } // END - if
 
+               // Add amount of hashes per block (double-hash)
+               $hashesPerBlock += $iter * 2 + 2;
+
+               // Push found hash
+               array_push($foundHashes, array(
+                       'modula_hash'  => $modulaHash,
+                       'genesis_hash' => $genesisHash,
+                       'nonce'        => $nonce,
+                       'iter'         => $iter,
+                       'hashes_block' => $hashesPerBlock,
+                       'nonce_hash'   => $nonceHash
+               ));
+
                // Found hash:
-               //print ('nonceHash=' . $nonceHash .',iter=' . $iter . PHP_EOL);
+               print ('FOUND: nonceHash=' . $nonceHash . ',nonce=' . $nonce . ',iter=' . $iter . PHP_EOL);
+
+               // Flush check-point file after new hash is found
+               flushCheckPointFile($nonce, $nonceHash, $foundHashes);
 
                // Use nonceHash as next modula hash
                $modulaHash = $nonceHash;
@@ -327,17 +400,16 @@ while (TRUE) {
 
        // Time taken for one block
        $timeBlock = abs(microtime(TRUE) - $timeBlock);
-       //print ('calculateSumFromHash(modulaHash)=' . calculateSumFromHash($modulaHash) . PHP_EOL);
-       //print ('calculateSumFromHash(nonceHash)=' . calculateSumFromHash($nonceHash) . PHP_EOL);
 
        // Calculate reward
        $reward = abs($timeBlock - $timeBadHashes) / $hashrate * $hashesPerBlock / BLOCK_SIZE * 1000;
-       //print ('timeBlock=' . $timeBlock . ',timeBadHashes=' . $timeBadHashes . ',hashesPerBlock=' . $hashesPerBlock .',reward=' . $reward . PHP_EOL);
+       print ('timeBlock=' . $timeBlock . ',timeBadHashes=' . $timeBadHashes . ',hashesPerBlock=' . $hashesPerBlock .',reward=' . $reward . PHP_EOL);
 
        // Block completed
        $totalHashes += $hashesPerBlock;
        $totalBlocks++;
        $hashesPerBlock = 0;
+       $foundHashes = array();
 
        // Calculate new nonce
        $nonce = calculateNonce($nonce);