blob: 426b73d2c1ca0512f30ab5d1100a471087fedc55 [file] [log] [blame]
// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "storage/browser/fileapi/transient_file_util.h"
#include <string>
#include "base/bind.h"
#include "base/files/file_path.h"
#include "storage/browser/fileapi/file_system_operation_context.h"
#include "storage/browser/fileapi/file_system_url.h"
#include "storage/browser/fileapi/isolated_context.h"
using storage::ScopedFile;
namespace storage {
namespace {
void RevokeFileSystem(const std::string& filesystem_id,
const base::FilePath& /*path*/) {
IsolatedContext::GetInstance()->RevokeFileSystem(filesystem_id);
}
} // namespace
ScopedFile TransientFileUtil::CreateSnapshotFile(
FileSystemOperationContext* context,
const FileSystemURL& url,
base::File::Error* error,
base::File::Info* file_info,
base::FilePath* platform_path) {
DCHECK(file_info);
*error = GetFileInfo(context, url, file_info, platform_path);
if (*error == base::File::FILE_OK && file_info->is_directory)
*error = base::File::FILE_ERROR_NOT_A_FILE;
if (*error != base::File::FILE_OK)
return ScopedFile();
// Sets-up a transient filesystem.
DCHECK(!platform_path->empty());
DCHECK(!url.filesystem_id().empty());
ScopedFile scoped_file(
*platform_path,
ScopedFile::DELETE_ON_SCOPE_OUT,
context->task_runner());
scoped_file.AddScopeOutCallback(
base::Bind(&RevokeFileSystem, url.filesystem_id()), NULL);
return scoped_file;
}
} // namespace storage