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<?php |
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declare(strict_types=1); |
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namespace BitWasp\Bitcoind\Node; |
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use BitWasp\Bitcoind\Config\Config; |
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use BitWasp\Bitcoind\Config\Loader as ConfigLoader; |
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use BitWasp\Bitcoind\Exception\ServerException; |
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use BitWasp\Bitcoind\HttpDriver\CurlDriver; |
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use Nbobtc\Command\Command; |
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use Nbobtc\Http\Client; |
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class Server |
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{ |
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const ERROR_STARTUP = -28; |
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const ERROR_TX_MEMPOOL_CONFLICT = -26; |
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/** |
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* @var NodeOptions |
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*/ |
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private $options; |
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/** |
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* @var Config |
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*/ |
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private $config; |
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/** |
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* Server constructor. |
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* @param NodeOptions $options |
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*/ |
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public function __construct(NodeOptions $options) |
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{ |
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if (!is_dir($options->getDataDir())) { |
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throw new ServerException("Cannot create server without a valid datadir"); |
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} |
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$this->options = $options; |
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} |
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public function getNodeOptions(): NodeOptions |
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{ |
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return $this->options; |
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} |
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private function secondsToMicro(float $seconds): int |
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{ |
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return (int) $seconds * 1000000; |
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} |
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/** |
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* @return bool |
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*/ |
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public function waitForStartup(): bool |
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{ |
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for ($i = 0; $i < 5; $i++) { |
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if (file_exists($this->options->getAbsolutePidPath($this->config))) { |
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return true; |
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} |
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sleep(1); |
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} |
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return false; |
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} |
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public function waitForRpc(): bool |
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{ |
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$start = microtime(true); |
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$limit = 10; |
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$connected = false; |
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$conn = $this->getClient(); |
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do { |
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try { |
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$result = json_decode($conn->sendCommand(new Command("getblockchaininfo"))->getBody()->getContents(), true); |
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if ($result['error'] === null) { |
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$connected = true; |
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} else { |
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if ($result['error']['code'] !== self::ERROR_STARTUP) { |
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throw new \RuntimeException("Unexpected error code during startup"); |
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} |
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usleep($this->secondsToMicro(0.02)); |
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} |
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} catch (\Exception $e) { |
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usleep($this->secondsToMicro(0.02)); |
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} |
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if (microtime(true) > $start + $limit) { |
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throw new \RuntimeException("Timeout elapsed, never made connection to bitcoind"); |
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} |
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} while (!$connected); |
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return $connected; |
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} |
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public function getConfig(ConfigLoader $loader): Config |
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{ |
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return $loader->load( |
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$this->options->getAbsoluteConfigPath() |
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); |
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} |
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/** |
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* @param ConfigLoader $loader |
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*/ |
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public function start(ConfigLoader $loader) |
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{ |
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if ($this->isRunning()) { |
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return; |
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} |
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$this->config = $this->getConfig($loader); |
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$res = null; |
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$out = []; |
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exec($this->options->getStartupCommand(), $out, $res); |
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if (0 !== $res) { |
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if (getenv('BITCOINDSERVER_DEBUG_START')) { |
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echo file_get_contents($this->options->getAbsoluteLogPath($this->config)); |
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} |
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throw new \RuntimeException("Failed to start bitcoind: {$this->options->getDataDir()}\n"); |
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} |
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$tries = 3; |
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do { |
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if (!$this->isRunning()) { |
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if ($tries === 0) { |
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if (getenv('BITCOINDSERVER_DEBUG_START')) { |
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echo file_get_contents($this->options->getAbsoluteLogPath($this->config)); |
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} |
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throw new \RuntimeException("node didn't start"); |
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} |
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usleep(50000); |
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} |
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} while ($tries-- > 0 && !$this->isRunning()); |
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} |
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/** |
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* @return Client |
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* @throws ServerException |
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* @throws \BitWasp\Bitcoind\Exception\BitcoindException |
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*/ |
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public function getClient(): Client |
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{ |
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if (!$this->isRunning()) { |
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throw new ServerException("Cannot get Client for non-running server"); |
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} |
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$client = new Client($this->config->getRpcDsn()); |
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$client->withDriver(new CurlDriver()); |
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return $client; |
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} |
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public function shutdown() |
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{ |
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if (!$this->isRunning()) { |
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throw new ServerException("Server is not running, cannot shut down"); |
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} |
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$out = null; |
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$ret = null; |
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exec("kill -15 {$this->getPid()}", $out, $ret); |
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if ($ret !== 0) { |
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throw new ServerException("Failed sending SIGTERM to node"); |
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} |
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$timeoutSeconds = 5; |
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$sleepsPerSecond = 5; |
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$steps = $timeoutSeconds * $sleepsPerSecond; |
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$usleep = pow(10, 6) / $sleepsPerSecond; |
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for ($i = 0; $i < $steps; $i++) { |
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if ($this->isRunning()) { |
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usleep($usleep); |
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} |
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} |
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if ($this->isRunning()) { |
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throw new ServerException("Failed to shutdown node!"); |
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} |
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} |
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5 |
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public function isRunning(): bool |
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{ |
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return $this->config != null && file_exists($this->options->getAbsolutePidPath($this->config)); |
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} |
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3 |
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public function getPid(): int |
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{ |
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3 |
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if (!$this->isRunning()) { |
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throw new ServerException("Server is not running - no PID file"); |
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} |
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return (int) trim(file_get_contents($this->options->getAbsolutePidPath($this->config))); |
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} |
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} |
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Bit-Wasp /
bitcoind-server
