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// Copyright 2015 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 STORAGE_BROWSER_BLOB_INTERNAL_BLOB_DATA_H_
#define STORAGE_BROWSER_BLOB_INTERNAL_BLOB_DATA_H_
#include <stddef.h>
#include <string>
#include <vector>
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "storage/browser/blob/shareable_blob_data_item.h"
namespace storage {
class ViewBlobInternalsJob;
// This class represents a blob in the BlobStorageContext. It is constructed
// using the internal Builder class.
class InternalBlobData {
public:
~InternalBlobData();
protected:
friend class BlobStorageContext;
friend class BlobStorageRegistry;
friend class ViewBlobInternalsJob;
// Removes the given blob uuid from the internal ShareableBlobDataItems.
// This is called when this blob is being destroyed.
void RemoveBlobFromShareableItems(const std::string& blob_uuid);
const std::vector<scoped_refptr<ShareableBlobDataItem>>& items() const;
const std::string& content_type() const;
const std::string& content_disposition() const;
// Gets the memory used by this blob that is not shared by other blobs. This
// also doesn't count duplicate items.
size_t GetUnsharedMemoryUsage() const;
// Gets the memory used by this blob. Total memory includes memory of items
// possibly shared with other blobs, or items that appear multiple times in
// this blob. Unshared memory is memory used by this blob that is not shared
// by other blobs.
void GetMemoryUsage(size_t* total_memory, size_t* unshared_memory);
private:
friend class Builder;
InternalBlobData();
std::string content_type_;
std::string content_disposition_;
std::vector<scoped_refptr<ShareableBlobDataItem>> items_;
class Builder {
public:
Builder();
~Builder();
void AppendSharedBlobItem(scoped_refptr<ShareableBlobDataItem> item);
void set_content_type(const std::string& content_type);
void set_content_disposition(const std::string& content_disposition);
// Gets the memory used by this builder that is not shared with other blobs.
size_t GetNonsharedMemoryUsage() const;
// Removes the given blob uuid from the internal ShareableBlobDataItems.
// This is called on destruction of the blob if we're still building it.
void RemoveBlobFromShareableItems(const std::string& blob_uuid);
// The builder is invalid after calling this method.
scoped_ptr<::storage::InternalBlobData> Build();
private:
scoped_ptr<::storage::InternalBlobData> data_;
DISALLOW_COPY_AND_ASSIGN(Builder);
};
DISALLOW_COPY_AND_ASSIGN(InternalBlobData);
};
} // namespace storage
#endif // STORAGE_BROWSER_BLOB_INTERNAL_BLOB_DATA_H_