Supported Versions: PHP 4, PHP 5, PHP 7, PHP 8
                                                    Delay execution in microseconds
                                                                <?php usleep(int $microseconds): void<?php             }
            if ($retries) {
                usleep(500000);
                $retries--;
                return $download();<?php                 }
                $retries = 3;
                usleep(100000);
                return $download();
            }<?php                 break;
            } catch (\Exception $e) {
                if ($retries) {
                    usleep(500000);
                    continue;
                }<?php                     }
                    if ($retries) {
                        usleep(100000);
                        continue;
                    }<?php             clearstatcache();
            usleep(100000);
            if (!is_dir($directory)) {
                return true;
            }<?php         if (!$unlinked) {
            if (Platform::isWindows()) {
                usleep(350000);
                $unlinked = @$this->unlinkImplementation($path);
            }<?php         if (!$deleted) {
            if (Platform::isWindows()) {
                usleep(350000);
                $deleted = @rmdir($path);
            }<?php         $this->checkCurlResult(curl_multi_exec($this->multiHandle, $active));
        if (-1 === curl_multi_select($this->multiHandle, $this->selectTimeout)) {
            usleep(150);
        }
        while ($progress = curl_multi_info_read($this->multiHandle)) {<?php     public static function workaroundFilesystemIssues()
    {
        if (self::isVirtualBoxGuest()) {
            usleep(200000);
        }
    }<?php                 return;
            }
            usleep(1000);
        }
    }