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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.
#include "base/basictypes.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_vector.h"
#include "base/supports_user_data.h"
#include "net/base/net_export.h"
#include "net/base/upload_element.h"
class FilePath;
namespace base {
class Time;
} // namespace base
namespace net {
// A very concrete class representing the data to be uploaded as part of a
// URLRequest.
// Until there is a more abstract class for this, this one derives from
// SupportsUserData to allow users to stash random data by
// key and ensure its destruction when UploadData is finally deleted.
class NET_EXPORT UploadData
: public base::RefCounted<UploadData>,
public base::SupportsUserData {
void AppendBytes(const char* bytes, int bytes_len);
void AppendFileRange(const FilePath& file_path,
uint64 offset, uint64 length,
const base::Time& expected_modification_time);
// Initializes the object to send chunks of upload data over time rather
// than all at once. Chunked data may only contain bytes, not files.
void set_is_chunked(bool set) { is_chunked_ = set; }
bool is_chunked() const { return is_chunked_; }
// set_last_chunk_appended() is only used for serialization.
void set_last_chunk_appended(bool set) { last_chunk_appended_ = set; }
bool last_chunk_appended() const { return last_chunk_appended_; }
const ScopedVector<UploadElement>& elements() const {
return elements_;
ScopedVector<UploadElement>* elements_mutable() {
return &elements_;
void swap_elements(ScopedVector<UploadElement>* elements) {
// Identifies a particular upload instance, which is used by the cache to
// formulate a cache key. This value should be unique across browser
// sessions. A value of 0 is used to indicate an unspecified identifier.
void set_identifier(int64 id) { identifier_ = id; }
int64 identifier() const { return identifier_; }
friend class base::RefCounted<UploadData>;
virtual ~UploadData();
ScopedVector<UploadElement> elements_;
int64 identifier_;
bool is_chunked_;
bool last_chunk_appended_;
} // namespace net