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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.
#ifndef COMPONENTS_CRONET_ANDROID_WRAPPED_CHANNEL_UPLOAD_ELEMENT_READER_H_
#define COMPONENTS_CRONET_ANDROID_WRAPPED_CHANNEL_UPLOAD_ELEMENT_READER_H_
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "components/cronet/android/url_request_adapter.h"
#include "net/base/completion_callback.h"
#include "net/base/upload_element_reader.h"
namespace net {
class IOBuffer;
} // namespace net
namespace cronet {
// An UploadElementReader implementation for
// java.nio.channels.ReadableByteChannel.
// |channel_| should outlive this class because this class does not take the
// ownership of the data.
class WrappedChannelElementReader : public net::UploadElementReader {
public:
WrappedChannelElementReader(
scoped_refptr<URLRequestAdapter::URLRequestAdapterDelegate> delegate,
uint64 length);
virtual ~WrappedChannelElementReader();
// UploadElementReader overrides:
virtual int Init(const net::CompletionCallback& callback) override;
virtual uint64 GetContentLength() const override;
virtual uint64 BytesRemaining() const override;
virtual bool IsInMemory() const override;
virtual int Read(net::IOBuffer* buf,
int buf_length,
const net::CompletionCallback& callback) override;
private:
const uint64 length_;
uint64 offset_;
scoped_refptr<URLRequestAdapter::URLRequestAdapterDelegate> delegate_;
DISALLOW_COPY_AND_ASSIGN(WrappedChannelElementReader);
};
} // namespace cronet
#endif // COMPONENTS_CRONET_ANDROID_WRAPPED_CHANNEL_UPLOAD_ELEMENT_READER_H_
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