Zend_TimeSync_Sntp Class Reference

Inheritance diagram for Zend_TimeSync_Sntp:

Public Member Functions
	__construct ($timeserver, $port)
Public Member Functions inherited from Zend_TimeSync_Protocol
	getInfo ()
	getDate ($locale=null)

Protected Member Functions
	_prepare ()
	_read ()
	_write ($data)
	_extract ($result)
Protected Member Functions inherited from Zend_TimeSync_Protocol
	_prepare ()
	_read ()
	_write ($data)
	_extract ($data)
	_connect ()
	_disconnect ()

Protected Attributes
	$_port = 37
Protected Attributes inherited from Zend_TimeSync_Protocol
	$_socket
	$_exceptions
	$_timeserver
	$_info = array()

Detailed Description

Definition at line 35 of file Sntp.php.

Constructor & Destructor Documentation

__construct()

__construct	(		$timeserver,
			$port
	)

Class constructor, sets the timeserver and port number

Parameters

string	$timeserver	Timeserver to connect to
integer	$port	Port of the timeserver when it differs from the default port

Definition at line 57 of file Sntp.php.

    {
        $this->_timeserver = 'udp://' . $timeserver;
        if ($port !== null) {
            $this->_port = $port;
        }
    }

Member Function Documentation

_extract()

_extract (   $result )

protected

Extracts the data returned from the timeserver

Parameters

string

$result

Data to extract

Returns

integer

Definition at line 107 of file Sntp.php.

    {
        $dec   = hexdec('7fffffff');
        $time  = abs(($dec - hexdec(bin2hex($result))) - $dec);
        $time -= 2208988800;
        // Socket delay
        $time -= $this->_delay;

        $this->_info['offset'] = $this->_delay;

        return $time;
    }

_prepare()

_prepare ( )

protected

Prepares the data that will be send to the timeserver

Returns

array

Definition at line 70 of file Sntp.php.

    {
        return "\n";
    }

_read()

_read ( )

protected

Reads the data returned from the timeserver

Returns

string

Definition at line 80 of file Sntp.php.

    {
        $result       = fread($this->_socket, 49);
        $this->_delay = (($this->_delay - time()) / 2);

        return $result;
    }

_write()

_write (   $data )

protected

Writes data to to the timeserver

Parameters

string

$data

Data to write to the timeserver

Returns

void

Definition at line 94 of file Sntp.php.

    {
        $this->_connect();
        $this->_delay = time();
        fputs($this->_socket, $data);
    }

Field Documentation

$_port

$_port = 37

protected

Definition at line 42 of file Sntp.php.

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The documentation for this class was generated from the following file:

• vendor/magento/zendframework1/library/Zend/TimeSync/Sntp.php