Source of file Filesystem.php
Size: 5,864 Bytes - Last Modified: 2021-12-23T10:29:30+00:00
/var/www/docs.ssmods.com/process/src/thirdparty/Zend/Search/Lucene/Storage/File/Filesystem.php
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223 | <?php /** * Zend Framework * * LICENSE * * This source file is subject to the new BSD license that is bundled * with this package in the file LICENSE.txt. * It is also available through the world-wide-web at this URL: * http://framework.zend.com/license/new-bsd * If you did not receive a copy of the license and are unable to * obtain it through the world-wide-web, please send an email * to license@zend.com so we can send you a copy immediately. * * @category Zend * @package Zend_Search_Lucene * @subpackage Storage * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com) * @license http://framework.zend.com/license/new-bsd New BSD License * @version $Id: Filesystem.php 20096 2010-01-06 02:05:09Z bkarwin $ */ /** * Zend_Search_Lucene_Storage_File */ require_once 'Zend/Search/Lucene/Storage/File.php'; /** * @category Zend * @package Zend_Search_Lucene * @subpackage Storage * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com) * @license http://framework.zend.com/license/new-bsd New BSD License */ class Zend_Search_Lucene_Storage_File_Filesystem extends Zend_Search_Lucene_Storage_File { /** * Resource of the open file * * @var resource */ protected $_fileHandle; /** * Class constructor. Open the file. * * @param string $filename * @param string $mode */ public function __construct($filename, $mode='r+b') { global $php_errormsg; if (strpos($mode, 'w') === false && !is_readable($filename)) { // opening for reading non-readable file include_once 'Zend/Search/Lucene/Exception.php'; throw new Zend_Search_Lucene_Exception('File \'' . $filename . '\' is not readable.'); } $trackErrors = ini_get('track_errors'); ini_set('track_errors', '1'); $this->_fileHandle = @fopen($filename, $mode); if ($this->_fileHandle === false) { ini_set('track_errors', $trackErrors); include_once 'Zend/Search/Lucene/Exception.php'; throw new Zend_Search_Lucene_Exception($php_errormsg); } ini_set('track_errors', $trackErrors); } /** * Sets the file position indicator and advances the file pointer. * The new position, measured in bytes from the beginning of the file, * is obtained by adding offset to the position specified by whence, * whose values are defined as follows: * SEEK_SET - Set position equal to offset bytes. * SEEK_CUR - Set position to current location plus offset. * SEEK_END - Set position to end-of-file plus offset. (To move to * a position before the end-of-file, you need to pass a negative value * in offset.) * SEEK_CUR is the only supported offset type for compound files * * Upon success, returns 0; otherwise, returns -1 * * @param integer $offset * @param integer $whence * @return integer */ public function seek($offset, $whence=SEEK_SET) { return fseek($this->_fileHandle, $offset, $whence); } /** * Get file position. * * @return integer */ public function tell() { return ftell($this->_fileHandle); } /** * Flush output. * * Returns true on success or false on failure. * * @return boolean */ public function flush() { return fflush($this->_fileHandle); } /** * Close File object */ public function close() { if ($this->_fileHandle !== null ) { @fclose($this->_fileHandle); $this->_fileHandle = null; } } /** * Get the size of the already opened file * * @return integer */ public function size() { $position = ftell($this->_fileHandle); fseek($this->_fileHandle, 0, SEEK_END); $size = ftell($this->_fileHandle); fseek($this->_fileHandle, $position); return $size; } /** * Read a $length bytes from the file and advance the file pointer. * * @param integer $length * @return string */ protected function _fread($length=1) { if ($length == 0) { return ''; } if ($length < 1024) { return fread($this->_fileHandle, $length); } $data = ''; while ( $length > 0 && ($nextBlock = fread($this->_fileHandle, $length)) != false ) { $data .= $nextBlock; $length -= strlen($nextBlock); } return $data; } /** * Writes $length number of bytes (all, if $length===null) to the end * of the file. * * @param string $data * @param integer $length */ protected function _fwrite($data, $length=null) { if ($length === null ) { fwrite($this->_fileHandle, $data); } else { fwrite($this->_fileHandle, $data, $length); } } /** * Lock file * * Lock type may be a LOCK_SH (shared lock) or a LOCK_EX (exclusive lock) * * @param integer $lockType * @param boolean $nonBlockingLock * @return boolean */ public function lock($lockType, $nonBlockingLock = false) { if ($nonBlockingLock) { return flock($this->_fileHandle, $lockType | LOCK_NB); } else { return flock($this->_fileHandle, $lockType); } } /** * Unlock file * * Returns true on success * * @return boolean */ public function unlock() { if ($this->_fileHandle !== null ) { return flock($this->_fileHandle, LOCK_UN); } else { return true; } } } |