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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.
//
// HttpStream provides an abstraction for a basic http streams, http pipelining
// implementations, and SPDY. The HttpStream subtype is expected to manage the
// underlying transport appropriately. For example, a non-pipelined HttpStream
// would return the transport socket to the pool for reuse. SPDY streams on the
// other hand leave the transport socket management to the SpdySession.
#ifndef NET_HTTP_HTTP_STREAM_H_
#define NET_HTTP_HTTP_STREAM_H_
#include "base/basictypes.h"
#include "net/base/completion_callback.h"
#include "net/base/net_export.h"
#include "net/base/upload_progress.h"
#include "net/http/http_stream_base.h"
namespace net {
class IOBuffer;
class NET_EXPORT_PRIVATE HttpStream : public HttpStreamBase {
public:
HttpStream() {}
virtual ~HttpStream() {}
// Queries the UploadDataStream for its progress (bytes sent).
virtual UploadProgress GetUploadProgress() const = 0;
// Returns a new (not initialized) stream using the same underlying
// connection and invalidates the old stream - no further methods should be
// called on the old stream. The caller should ensure that the response body
// from the previous request is drained before calling this method. If the
// subclass does not support renewing the stream, NULL is returned.
virtual HttpStream* RenewStreamForAuth() = 0;
private:
DISALLOW_COPY_AND_ASSIGN(HttpStream);
};
} // namespace net
#endif // NET_HTTP_HTTP_STREAM_H_
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