backup / src / JetBackup / Archive / File / File.php

File.php in JetBackup – Backup, Restore & Migrate 3.1.21.3, at src/JetBackup/Archive/File/File.php

35 lines 856 B

Raw Download Zip

1	<?php
2	/*
3	*
4	* JetBackup @ package
5	* Created By Idan Ben-Ezra
6	*
7	* Copyrights @ JetApps
8	* https://www.jetapps.com
9	*
10	**/
11	namespace JetBackup\Archive\File;
12
13	use JetBackup\Exception\ArchiveException;
14
15	abstract class File {
16
17	public function __construct(string $filename, string $mode) {
18
19	if(strpos($mode, 'r') !== false && !file_exists($filename))
20	throw new ArchiveException('no such file: '.$filename);
21	}
22
23	abstract public function truncate($offset): bool;
24	abstract public function read(int $length);
25	abstract public function write(string $data, $length=null);
26	abstract public function seek(int $offset, int $whence = SEEK_SET): int;
27	abstract public function tell(): int;
28	abstract public function eof(): bool;
29	abstract public function flush(): bool;
30	abstract public function close(): bool;
31
32	public function __destruct() {
33	$this->close();
34	}
35	}