function StreamSelectDriver::__construct

File

vendor/revolt/event-loop/src/EventLoop/Driver/StreamSelectDriver.php, line 46
Class

StreamSelectDriver
Namespace

Code

public function __construct() {
    parent::__construct();
    $this->signalQueue = new \SplQueue();
    $this->timerQueue = new TimerQueue();
    $this->signalHandling = \extension_loaded("pcntl") && \function_exists('pcntl_signal_dispatch') && \function_exists('pcntl_signal');
    $this->streamSelectErrorHandler = function (int $errno, string $message) : void {
        // Casing changed in PHP 8 from 'unable' to 'Unable'
        if (\stripos($message, "stream_select(): unable to select [4]: ") === 0) {
            // EINTR
            $this->streamSelectIgnoreResult = true;
            return;
        }
        if (\str_contains($message, 'FD_SETSIZE')) {
            $message = \str_replace([
                "\r\n",
                "\n",
                "\r",
            ], " ", $message);
            $pattern = '(stream_select\\(\\): You MUST recompile PHP with a larger value of FD_SETSIZE. It is set to (\\d+), but you have descriptors numbered at least as high as (\\d+)\\.)';
            if (\preg_match($pattern, $message, $match)) {
                $helpLink = 'https://revolt.run/extensions';
                $message = 'You have reached the limits of stream_select(). It has a FD_SETSIZE of ' . $match[1] . ', but you have file descriptors numbered at least as high as ' . $match[2] . '. ' . "You can install one of the extensions listed on {$helpLink} to support a higher number of " . "concurrent file descriptors. If a large number of open file descriptors is unexpected, you " . "might be leaking file descriptors that aren't closed correctly.";
            }
        }
        throw new \Exception($message, $errno);
    };
}