/**
* Locks the current item.
*
* Locks is only meant for write actions like change, while an item should
* be anyway accessible in read only mode when locked.
*
* @todo The system should support automatic expiry of locks after n
* seconds, and an optional alert to the user (eg. a javascript alert).
*
* @todo This method should optionally accept a max lock time in seconds.
*
* @access public
* @return void
*/
public function lock()
{
$sem = new \Innomatic\Process\Semaphore('innoworkitem_' . $this->mItemType, $this->mItemId);
$sem->setRed();
}
public function destroy()
{
$result = false;
$sem = new \Innomatic\Process\Semaphore('cache', $this->mItemFile);
$sem->waitGreen();
$sem->setRed();
if (strlen($this->mItemFile) and file_exists($this->mItemFile)) {
$result = @unlink($this->mItemFile);
} else {
$this->mResult = CachedItem::ITEM_NOT_FOUND;
}
if ($result) {
$result = $this->mrRootDb->execute('DELETE FROM cache_items WHERE application=' . $this->mrRootDb->formatText($this->mApplication) . ' AND itemid=' . $this->mrRootDb->formatText($this->mItemId));
}
$sem->setGreen();
return $result;
}
/**
* Svuota il contenuto della clipboard.
* @return bool
* @access public
*/
public function erase()
{
$result = false;
if ($this->IsValid()) {
$sem = new \Innomatic\Process\Semaphore('clipboard', $this->fileName);
$sem->waitGreen();
$sem->setRed();
$result = unlink($this->fileName);
$sem->setGreen();
} else {
$result = true;
}
return $result;
}