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// Copyright (c) 2012 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.
#ifndef NET_BASE_UPLOAD_FILE_ELEMENT_READER_H_
#define NET_BASE_UPLOAD_FILE_ELEMENT_READER_H_
#include "base/compiler_specific.h"
#include "base/file_path.h"
#include "base/gtest_prod_util.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/time.h"
#include "net/base/upload_element_reader.h"
namespace net {
class FileStream;
// An UploadElementReader implementation for file.
class NET_EXPORT_PRIVATE UploadFileElementReader : public UploadElementReader {
public:
UploadFileElementReader(const FilePath& path,
uint64 range_offset,
uint64 range_length,
const base::Time& expected_modification_time);
virtual ~UploadFileElementReader();
// UploadElementReader overrides:
virtual int Init(const CompletionCallback& callback) OVERRIDE;
virtual int InitSync() OVERRIDE;
virtual uint64 GetContentLength() const OVERRIDE;
virtual uint64 BytesRemaining() const OVERRIDE;
virtual int Read(IOBuffer* buf,
int buf_length,
const CompletionCallback& callback) OVERRIDE;
virtual int ReadSync(IOBuffer* buf, int buf_length) OVERRIDE;
private:
// This method is used to implement Init().
void OnInitCompleted(scoped_ptr<FileStream>* file_stream,
uint64* content_length,
const CompletionCallback& callback,
int result);
// This method is used to implement Read().
void OnReadCompleted(scoped_ptr<FileStream> file_stream,
const CompletionCallback& callback,
int result);
// Sets an value to override the result for GetContentLength().
// Used for tests.
struct NET_EXPORT_PRIVATE ScopedOverridingContentLengthForTests {
ScopedOverridingContentLengthForTests(uint64 value);
~ScopedOverridingContentLengthForTests();
};
FilePath path_;
uint64 range_offset_;
uint64 range_length_;
base::Time expected_modification_time_;
scoped_ptr<FileStream> file_stream_;
uint64 content_length_;
uint64 bytes_remaining_;
base::WeakPtrFactory<UploadFileElementReader> weak_ptr_factory_;
FRIEND_TEST_ALL_PREFIXES(UploadDataStreamTest, FileSmallerThanLength);
FRIEND_TEST_ALL_PREFIXES(HttpNetworkTransactionTest,
UploadFileSmallerThanLength);
FRIEND_TEST_ALL_PREFIXES(HttpNetworkTransactionSpdy2Test,
UploadFileSmallerThanLength);
FRIEND_TEST_ALL_PREFIXES(HttpNetworkTransactionSpdy3Test,
UploadFileSmallerThanLength);
DISALLOW_COPY_AND_ASSIGN(UploadFileElementReader);
};
} // namespace net
#endif // NET_BASE_UPLOAD_FILE_ELEMENT_READER_H_
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