/**
* Open url/stream
* @return void
* @throws \RuntimeException
*/
public function init()
{
$stream = @fopen($this->config['url'], 'a');
if (!$stream) {
throw new \RuntimeException(sprintf("Couldn't open resource '%s'", $this->config['url']));
}
$this->stream = $stream;
if (!empty($this->config['lock']) && $this->config['lock'] === true && stream_supports_lock($this->stream)) {
$this->useLocks = true;
}
}
/**
* @return bool
*/
public function isLockable() : bool
{
return stream_supports_lock($this->getHandle());
}
/**
* Метод определяет можно ли произвести блокировку стрима при помощи flock.
*
* @return bool
*/
public function canLock()
{
return stream_supports_lock($this->getResource());
}
/**
* Checks to see if the stream supports locking.
*
* @throws LockException If locking is not supported.
*/
private function checkLockSupport()
{
if (!stream_supports_lock($this->stream)) {
throw new LockException('The file stream does not support locking.');
}
}
<?php
$fp = fopen(__FILE__, "r");
var_dump($fp);
var_dump(stream_supports_lock($fp));
fclose($fp);
$fp = fopen("file://" . __FILE__, "r");
var_dump($fp);
var_dump(stream_supports_lock($fp));
fclose($fp);
$fp = fopen("php://memory", "r");
var_dump($fp);
var_dump(stream_supports_lock($fp));
fclose($fp);
$fp = fopen('data://text/plain,foobar', 'r');
var_dump($fp);
var_dump(stream_supports_lock($fp));
fclose($fp);
$sock = stream_context_create();
var_dump($sock);
var_dump(stream_supports_lock($sock));
echo "Done\n";
/**
* Enter description here ...
*
* @return bool
*/
public function supportsLock()
{
return stream_supports_lock($this->hHandle);
}
/**
* Alias for stream_supports_lock
* @return boolean
*/
public function isLockable()
{
if ($this->isOpen()) {
return stream_supports_lock($this->pointer);
}
return false;
}
public function canLock()
{
if (!$this->isOpen()) {
throw new Exception('Stream Not Open');
}
return stream_supports_lock($this->stream);
}
/**
* Tells whether the stream supports locking.
*
* @param resource $stream The stream to check.
*
* @return bool
*/
public function supportsLock($stream) : bool
{
return stream_supports_lock($stream);
}
