Revision 9de5d13958d63a28d1a07c605a2f116a58cff46e authored by Honza Bambas on 16 February 2016, 08:34:00 UTC, committed by Honza Bambas on 16 February 2016, 08:34:00 UTC
--HG-- extra : commitid : DK7thbJzLf8 extra : source : 651afdf7400c87cc7a2106f7b96570192d085d1d
1 parent 8d3dd1d
nsPreloadedStream.h
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/**
* This class allows you to prefix an existing nsIAsyncInputStream
* with a preloaded block of data known at construction time by wrapping the
* two data sources into a new nsIAsyncInputStream. Readers of the new
* stream initially see the preloaded data and when that has been exhausted
* they automatically read from the wrapped stream.
*
* It is used by nsHttpConnection when it has over buffered while reading from
* the HTTP input socket and accidentally consumed data that belongs to
* a different protocol via the HTTP Upgrade mechanism. That over-buffered
* data is preloaded together with the input socket to form the new input socket
* given to the new protocol handler.
*/
#ifndef nsPreloadedStream_h__
#define nsPreloadedStream_h__
#include "nsIAsyncInputStream.h"
#include "nsCOMPtr.h"
#include "mozilla/Attributes.h"
namespace mozilla {
namespace net {
class nsPreloadedStream final : public nsIAsyncInputStream
{
public:
NS_DECL_THREADSAFE_ISUPPORTS
NS_DECL_NSIINPUTSTREAM
NS_DECL_NSIASYNCINPUTSTREAM
nsPreloadedStream(nsIAsyncInputStream *aStream,
const char *data, uint32_t datalen);
private:
~nsPreloadedStream();
nsCOMPtr<nsIAsyncInputStream> mStream;
char *mBuf;
uint32_t mOffset;
uint32_t mLen;
};
} // namespace net
} // namespace mozilla
#endif
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