private function writeChunk(PhabricatorFile $file, PhabricatorFileStorageEngine $engine)
{
$offset = $this->getTotalBytesWritten();
$max_length = $engine->getChunkSize();
$rope = $this->getRope();
$data = $rope->getPrefixBytes($max_length);
$actual_length = strlen($data);
$rope->removeBytesFromHead($actual_length);
$chunk_data = PhabricatorFile::newFromFileData($data, array('name' => $file->getMonogram() . '.chunk-' . $offset, 'viewPolicy' => PhabricatorPolicies::POLICY_NOONE));
$chunk = PhabricatorFileChunk::initializeNewChunk($file->getStorageHandle(), $offset, $offset + $actual_length);
$chunk->setDataFilePHID($chunk_data->getPHID())->save();
$this->setTotalBytesWritten($offset + $actual_length);
return $chunk;
}
public function allocateChunks($length, array $properties)
{
$file = PhabricatorFile::newChunkedFile($this, $length, $properties);
$chunk_size = $this->getChunkSize();
$handle = $file->getStorageHandle();
$chunks = array();
for ($ii = 0; $ii < $length; $ii += $chunk_size) {
$chunks[] = PhabricatorFileChunk::initializeNewChunk($handle, $ii, min($ii + $chunk_size, $length));
}
$file->openTransaction();
foreach ($chunks as $chunk) {
$chunk->save();
}
$file->save();
$file->saveTransaction();
return $file;
}