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<?php |
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namespace PHPDaemon\FS; |
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use PHPDaemon\Core\Daemon; |
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use PHPDaemon\Core\Timer; |
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/** |
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* Implementation of the file watcher |
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* @package PHPDaemon\FS |
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* @author Vasily Zorin <[email protected]> |
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*/ |
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class FileWatcher |
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{ |
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use \PHPDaemon\Traits\ClassWatchdog; |
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use \PHPDaemon\Traits\StaticObjectWatchdog; |
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/** |
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* @var array Associative array of the files being observed |
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*/ |
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public $files = []; |
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/** |
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* @var resource Resource returned by inotify_init() |
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*/ |
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public $inotify; |
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/** |
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* @var Array of inotify descriptors |
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*/ |
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public $descriptors = []; |
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/** |
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* Constructor |
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*/ |
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public function __construct() |
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{ |
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if (Daemon::loadModuleIfAbsent('inotify')) { |
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$this->inotify = inotify_init(); |
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stream_set_blocking($this->inotify, 0); |
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} |
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Timer::add( |
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function ($event) { |
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Daemon::$process->fileWatcher->watch(); |
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if (sizeof(Daemon::$process->fileWatcher->files) > 0) { |
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$event->timeout(); |
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} |
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}, |
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1e6 * 1, |
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'fileWatcher' |
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); |
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} |
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/** |
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* Check the file system, triggered by timer |
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* @return void |
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*/ |
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public function watch() |
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{ |
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if ($this->inotify) { |
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$events = inotify_read($this->inotify); |
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if (!$events) { |
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return; |
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} |
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foreach ($events as $ev) { |
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$path = $this->descriptors[$ev['wd']]; |
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if (!isset($this->files[$path])) { |
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continue; |
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} |
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$this->onFileChanged($path); |
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} |
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} else { |
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static $hash = []; |
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foreach ($this->files as $path => $v) { |
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if (!file_exists($path)) { |
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// file can be deleted |
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unset($this->files[$path]); |
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continue; |
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} |
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$mt = filemtime($path); |
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if (isset($hash[$path]) && ($mt > $hash[$path])) { |
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$this->onFileChanged($path); |
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} |
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$hash[$path] = $mt; |
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} |
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} |
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} |
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/** |
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* Called when file $path is changed |
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* @param string $path Path |
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* @return void |
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*/ |
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public function onFileChanged($path) |
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{ |
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if (!Daemon::lintFile($path)) { |
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Daemon::log(__METHOD__ . ': Detected parse error in ' . $path); |
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return; |
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} |
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foreach ($this->files[$path] as $cb) { |
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if (is_callable($cb) || is_array($cb)) { |
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$cb($path); |
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} elseif (!Daemon::$process->IPCManager->importFile($cb, $path)) { |
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$this->rmWatch($path, $cb); |
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} |
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} |
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} |
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/** |
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* Cancels your subscription on object in FS |
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* @param string $path Path |
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* @param mixed $cb Callback |
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* @return boolean |
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*/ |
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public function rmWatch($path, $cb) |
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{ |
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$path = realpath($path); |
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if (!isset($this->files[$path])) { |
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return false; |
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} |
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if (($k = array_search($cb, $this->files[$path], true)) !== false) { |
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unset($this->files[$path][$k]); |
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} |
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if (sizeof($this->files[$path]) === 0) { |
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if ($this->inotify) { |
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if (($descriptor = array_search($path, $this->descriptors)) !== false) { |
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inotify_rm_watch($this->inotify, $cb); |
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} |
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} |
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unset($this->files[$path]); |
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} |
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return true; |
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} |
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/** |
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* Adds your subscription on object in FS |
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* @param string $path Path |
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* @param mixed $cb Callback |
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* @param integer $flags Look inotify_add_watch() |
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* @return true |
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*/ |
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public function addWatch($path, $cb, $flags = null) |
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{ |
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$path = realpath($path); |
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if (!isset($this->files[$path])) { |
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$this->files[$path] = []; |
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if ($this->inotify) { |
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$this->descriptors[inotify_add_watch($this->inotify, $path, $flags ?: IN_MODIFY)] = $path; |
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} |
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} |
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$this->files[$path][] = $cb; |
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Timer::setTimeout('fileWatcher'); |
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return true; |
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} |
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} |
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kakserpom /
phpdaemon
Loading history...
This check looks for
@paramannotations where the type inferred by our type inference engine differs from the declared type.It makes a suggestion as to what type it considers more descriptive.
Most often this is a case of a parameter that can be null in addition to its declared types.