Пример #1
0
 /**
  * @param BlockIndexInterface $index
  */
 public function next(BlockIndexInterface $index)
 {
     if (!$this->index->isNext($index)) {
         throw new \InvalidArgumentException('Provided Index does not elongate this Chain');
     }
     $this->index = $index;
     $this->emit('tip', [$index]);
 }
Пример #2
0
 /**
  * @param BlockIndexInterface $index
  * @return bool
  */
 public function isNext(BlockIndexInterface $index)
 {
     if (false === $this->hash->equals($index->getHeader()->getPrevBlock())) {
         return false;
     }
     if (false === ($index->getHeight() == $this->height + 1)) {
         return false;
     }
     return true;
 }
Пример #3
0
 /**
  * @param ChainStateInterface $chain
  * @param BlockIndexInterface $prevIndex
  * @return int|string
  */
 public function getWorkRequired(ChainStateInterface $chain, BlockIndexInterface $prevIndex)
 {
     $math = $this->math;
     if ($math->cmp($math->mod($math->add($prevIndex->getHeight(), 1), $this->params->powRetargetInterval()), 0) !== 0) {
         // No change in difficulty
         return $prevIndex->getHeader()->getBits()->getInt();
     }
     // Re-target
     $heightLastRetarget = $math->sub($prevIndex->getHeight(), $math->sub($this->params->powRetargetInterval(), 1));
     $lastTime = $chain->fetchAncestor($heightLastRetarget)->getHeader()->getTimestamp();
     return $this->calculateNextWorkRequired($prevIndex, $lastTime);
 }
Пример #4
0
 /**
  * @return ChainSegment[]
  */
 public function getHistory()
 {
     $height = $this->index->getHeight();
     $history = [];
     foreach ($this->getHistory() as $segment) {
         if ($segment->getLast()->getHeight() <= $height) {
             $history[] = $segment;
         } else {
             break;
         }
     }
     return $history;
 }
Пример #5
0
 /**
  * @param ChainAccessInterface $chain
  * @param BlockIndexInterface $index
  * @param BlockIndexInterface $prevIndex
  * @param Forks $forks
  * @return $this
  */
 public function checkContextual(ChainAccessInterface $chain, BlockIndexInterface $index, BlockIndexInterface $prevIndex, Forks $forks)
 {
     $work = $this->getWorkRequired($chain, $prevIndex);
     $header = $index->getHeader();
     if ($this->math->cmp(gmp_init($header->getBits(), 10), gmp_init($work, 10)) != 0) {
         throw new \RuntimeException('Headers::CheckContextual(): invalid proof of work : ' . $header->getBits() . '? ' . $work);
     }
     if ($header->getVersion() < $forks->getMajorityVersion()) {
         echo $index->getHash()->getHex() . PHP_EOL;
         echo "Heaader: " . $header->getVersion() . "\nMajority: " . $forks->getMajorityVersion() . PHP_EOL;
         throw new \RuntimeException('Rejected version');
     }
     return $this;
 }
Пример #6
0
 /**
  * @param BufferInterface $hash
  * @param BlockIndexInterface $prevIndex
  * @param BlockHeaderInterface $header
  * @return BlockIndex
  */
 public function getNextIndex(BufferInterface $hash, BlockIndexInterface $prevIndex, BlockHeaderInterface $header)
 {
     return new BlockIndex($hash, $prevIndex->getHeight() + 1, $this->math->toString($this->math->add($this->proofOfWork->getWork($header->getBits()), gmp_init($prevIndex->getWork()))), $header);
 }
Пример #7
0
 /**
  * @param BlockIndexInterface $index
  * @return array
  */
 public function convertIndexToArray(BlockIndexInterface $index)
 {
     $header = $index->getHeader();
     return ['height' => $index->getHeight(), 'hash' => $index->getHash()->getHex(), 'work' => $index->getWork(), 'version' => $header->getVersion(), 'prevBlock' => $header->getPrevBlock()->getHex(), 'merkleRoot' => $header->getMerkleRoot()->getHex(), 'nBits' => $header->getBits(), 'nTimestamp' => $header->getTimestamp(), 'nNonce' => $header->getNonce()];
 }
Пример #8
0
 /**
  * @param BlockIndexInterface $index
  * @param BlockInterface $block
  * @param BlockData $blockData
  */
 public function logBlock(BlockIndexInterface $index, BlockInterface $block, BlockData $blockData)
 {
     echo count($blockData->remainingNew) . "created and " . count($blockData->requiredOutpoints) . " destroyed\n";
     $this->log('block', ['hash' => $index->getHash()->getHex(), 'height' => $index->getHeight(), 'txs' => count($block->getTransactions()), 'nFees' => gmp_strval($blockData->nFees, 10), 'nSigOps' => $blockData->nSigOps, 'utxos' => ['created' => count($blockData->remainingNew), 'removed' => count($blockData->requiredOutpoints)]]);
 }
Пример #9
0
 /**
  * @param BlockInterface $block
  * @param BlockIndexInterface $prevBlockIndex
  * @return $this
  */
 public function checkContextual(BlockInterface $block, BlockIndexInterface $prevBlockIndex)
 {
     $newHeight = $prevBlockIndex->getHeight() + 1;
     $newTime = $block->getHeader()->getTimestamp();
     foreach ($block->getTransactions() as $transaction) {
         if (!$this->checkTransactionIsFinal($transaction, $newHeight, $newTime)) {
             throw new \RuntimeException('Block contains a non-final transaction');
         }
     }
     return $this;
 }
Пример #10
0
 /**
  * @param BlockIndexInterface $index
  * @return bool
  */
 public function isNext(BlockIndexInterface $index)
 {
     return $this->index->isNext($index);
 }