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Current Path : /home/scgforma/www/cloud/apps/files_external/3rdparty/icewind/smb/src/ |
Current File : /home/scgforma/www/cloud/apps/files_external/3rdparty/icewind/smb/src/NativeWriteStream.php |
<?php /** * Copyright (c) 2014 Robin Appelman <icewind@owncloud.com> * This file is licensed under the Licensed under the MIT license: * http://opensource.org/licenses/MIT */ namespace Icewind\SMB; /** * Stream optimized for write only usage */ class NativeWriteStream extends NativeStream { const CHUNK_SIZE = 1048576; // 1MB chunks /** * @var resource */ private $writeBuffer = null; private $bufferSize = 0; private $pos = 0; public function stream_open($path, $mode, $options, &$opened_path) { $this->writeBuffer = fopen('php://memory', 'r+'); return parent::stream_open($path, $mode, $options, $opened_path); } /** * Wrap a stream from libsmbclient-php into a regular php stream * * @param \Icewind\SMB\NativeState $state * @param resource $smbStream * @param string $mode * @param string $url * @return resource */ public static function wrap($state, $smbStream, $mode, $url) { stream_wrapper_register('nativesmb', '\Icewind\SMB\NativeWriteStream'); $context = stream_context_create(array( 'nativesmb' => array( 'state' => $state, 'handle' => $smbStream, 'url' => $url ) )); $fh = fopen('nativesmb://', $mode, false, $context); stream_wrapper_unregister('nativesmb'); return $fh; } public function stream_seek($offset, $whence = SEEK_SET) { $this->flushWrite(); $result = parent::stream_seek($offset, $whence); if ($result) { $this->pos = parent::stream_tell(); } return $result; } private function flushWrite() { rewind($this->writeBuffer); $this->state->write($this->handle, stream_get_contents($this->writeBuffer)); $this->writeBuffer = fopen('php://memory', 'r+'); $this->bufferSize = 0; } public function stream_write($data) { $written = fwrite($this->writeBuffer, $data); $this->bufferSize += $written; $this->pos += $written; if ($this->bufferSize >= self::CHUNK_SIZE) { $this->flushWrite(); } return $written; } public function stream_close() { $this->flushWrite(); return parent::stream_close(); } public function stream_tell() { return $this->pos; } public function stream_read($count) { return false; } public function stream_truncate($size) { $this->flushWrite(); $this->pos = $size; return parent::stream_truncate($size); } }