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<?php
namespace Pheanstalk\Socket;
/**
* Wrapper around PHP stream functions.
* Facilitates mocking/stubbing stream operations in unit tests.
*
* @author Paul Annesley
* @package Pheanstalk
* @license http://www.opensource.org/licenses/mit-license.php
*/
class StreamFunctions
{
private static $_instance;
/**
* Singleton accessor.
*/
public static function instance()
{
if (empty(self::$_instance)) {
self::$_instance = new self;
}
return self::$_instance;
}
/**
* Sets an alternative or mocked instance.
*/
public function setInstance($instance)
{
self::$_instance = $instance;
}
/**
* Unsets the instance, so a new one will be created.
*/
public function unsetInstance()
{
self::$_instance = null;
}
// ----------------------------------------
public function feof($handle)
{
return feof($handle);
}
public function fgets($handle, $length = null)
{
if (isset($length)) {
return fgets($handle, $length);
} else {
return fgets($handle);
}
}
public function fopen($filename, $mode)
{
return fopen($filename, $mode);
}
public function fread($handle, $length)
{
return fread($handle, $length);
}
public function fsockopen($hostname, $port = -1, &$errno = null, &$errstr = null, $timeout = null)
{
return @fsockopen($hostname, $port, $errno, $errstr, $timeout);
}
public function pfsockopen($hostname, $port = -1, &$errno = null, &$errstr = null, $timeout = null)
{
return @pfsockopen($hostname, $port, $errno, $errstr, $timeout);
}
public function fwrite($handle, $string, $length = null)
{
if (isset($length)) {
return fwrite($handle, $string, $length);
} else {
return fwrite($handle, $string);
}
}
public function fclose($handle)
{
fclose($handle);
}
public function stream_set_timeout($stream, $seconds, $microseconds = 0)
{
return stream_set_timeout($stream, $seconds, $microseconds);
}
}
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