Added flushCheckPointFile().

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

diff --git a/contrib/chash/chash.php b/contrib/chash/chash.php
index 1059641f1345c946dd61b17c4c99fde63e7ff554..1bc7f147e5b7c68fb9ac13231c47bd1b9aa47ce1 100644 (file)
--- a/contrib/chash/chash.php
+++ b/contrib/chash/chash.php
@@ -10,6 +10,9 @@ define('CHECK_POINT', 'chash.pos');
 // Found hashes
 $foundHashes = array();
 
+// Time when last flush occured
+global $timeFlush;
+
 /**
  * Continued-hashing
  *
@@ -185,6 +188,24 @@ function calculateNonce ($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
@@ -230,6 +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));
@@ -249,9 +273,13 @@ if (is_readable(CHECK_POINT)) {
        // Explode it
        $data = explode(':', $checkPoint);
 
-       // 1st element is nonce, 2nd hash
-       $nonce = $data[0];
-       $modulaHash = $data[1];
+       // Assert on count
+       assert(count($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();
@@ -260,6 +288,7 @@ if (is_readable(CHECK_POINT)) {
 // Output again
 print ('modulaHash=' . $modulaHash . PHP_EOL);
 print ('nonce=' . $nonce . PHP_EOL);
+print ('found=' . count($foundHashes) . PHP_EOL);
 
 // Start "mining"
 while (TRUE) {
@@ -268,8 +297,9 @@ while (TRUE) {
        $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;
@@ -314,6 +344,15 @@ while (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++;
@@ -338,13 +377,22 @@ while (TRUE) {
 
                // Add amount of hashes per block (double-hash)
                $hashesPerBlock += $iter * 2 + 2;
-               array_push($foundHashes, $nonceHash);
+
+               // Push found hash
+               array_push($foundHashes, array(
+                       'modula_hash'  => $modulaHash,
+                       'genesis_hash' => $genesisHash,
+                       'nonce'        => $nonce,
+                       'iter'         => $iter,
+                       'hashes_block' => $hashesPerBlock,
+                       'nonce_hash'   => $nonceHash
+               ));
 
                // Found hash:
                print ('FOUND: nonceHash=' . $nonceHash . ',nonce=' . $nonce . ',iter=' . $iter . PHP_EOL);
 
-               // Write check-point
-               file_put_contents(CHECK_POINT, $nonce . ':' . $nonceHash);
+               // Flush check-point file after new hash is found
+               flushCheckPointFile($nonce, $nonceHash, $foundHashes);
 
                // Use nonceHash as next modula hash
                $modulaHash = $nonceHash;