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// Copyright 2014 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 "content/browser/loader/temporary_file_stream.h"
#include "base/bind.h"
#include "base/callback.h"
#include "base/files/file_util_proxy.h"
#include "base/memory/ref_counted.h"
#include "content/public/browser/browser_thread.h"
#include "net/base/file_stream.h"
#include "webkit/common/blob/shareable_file_reference.h"
using webkit_blob::ShareableFileReference;
namespace content {
namespace {
void DidCreateTemporaryFile(
const CreateTemporaryFileStreamCallback& callback,
base::File::Error error_code,
base::PassPlatformFile file_handle,
const base::FilePath& file_path) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
if (error_code != base::File::FILE_OK) {
callback.Run(error_code, scoped_ptr<net::FileStream>(), NULL);
return;
}
// Cancelled or not, create the deletable_file so the temporary is cleaned up.
scoped_refptr<ShareableFileReference> deletable_file =
ShareableFileReference::GetOrCreate(
file_path,
ShareableFileReference::DELETE_ON_FINAL_RELEASE,
BrowserThread::GetMessageLoopProxyForThread(
BrowserThread::FILE).get());
scoped_ptr<net::FileStream> file_stream(new net::FileStream(
file_handle.ReleaseValue(),
base::PLATFORM_FILE_WRITE | base::PLATFORM_FILE_ASYNC));
callback.Run(error_code, file_stream.Pass(), deletable_file);
}
} // namespace
void CreateTemporaryFileStream(
const CreateTemporaryFileStreamCallback& callback) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
base::FileUtilProxy::CreateTemporary(
BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE).get(),
base::PLATFORM_FILE_ASYNC,
base::Bind(&DidCreateTemporaryFile, callback));
}
} // namespace content
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