blob: 2143057b6d0420d209343332495b2e15982a8c56 [file] [log] [blame]
// 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.
#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 {
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;
// After the response headers have been read and after the response body
// is complete, this function indicates if more data (either erroneous or
// as part of the next pipelined response) has been read from the socket.
virtual bool IsMoreDataBuffered() const = 0;
// Record histogram of number of round trips taken to download the full
// response body vs bytes transferred.
virtual void LogNumRttVsBytesMetrics() const = 0;
} // namespace net