protected function BuildTestBase::checkPortIsAvailable in Drupal 9

Same name and namespace in other branches

1. 8 core/tests/Drupal/BuildTests/Framework/BuildTestBase.php \Drupal\BuildTests\Framework\BuildTestBase::checkPortIsAvailable()

Checks whether a port is available.

Parameters

$port: A number between 1024 and 65536.

Return value

bool

3 calls to BuildTestBase::checkPortIsAvailable()

BuildTestBase::findAvailablePort in core/tests/Drupal/BuildTests/Framework/BuildTestBase.php

Discover an available port number.

BuildTestBase::instantiateServer in core/tests/Drupal/BuildTests/Framework/BuildTestBase.php

Do the work of making a server process.

BuildTestTest::testPortMany in core/tests/Drupal/BuildTests/Framework/Tests/BuildTestTest.php

@covers ::findAvailablePort

File

core/tests/Drupal/BuildTests/Framework/BuildTestBase.php, line 498

Class

BuildTestBase

Provides a workspace to test build processes.

Namespace

Drupal\BuildTests\Framework

Code

protected function checkPortIsAvailable($port) {
  $fp = @fsockopen(self::$hostName, $port, $errno, $errstr, 1);

  // If fsockopen() fails to connect, probably nothing is listening.
  // It could be a firewall but that's impossible to detect, so as a
  // best guess let's return it as available.
  if ($fp === FALSE) {
    return TRUE;
  }
  else {
    fclose($fp);
  }
  return FALSE;
}