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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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/. */
#ifndef nsIncrementalStreamLoader_h__
#define nsIncrementalStreamLoader_h__
#include "nsIThreadRetargetableStreamListener.h"
#include "nsIIncrementalStreamLoader.h"
#include "nsCOMPtr.h"
#include "mozilla/Atomics.h"
#include "mozilla/Vector.h"
class nsIRequest;
class nsIncrementalStreamLoader final : public nsIIncrementalStreamLoader {
public:
NS_DECL_THREADSAFE_ISUPPORTS
NS_DECL_NSIINCREMENTALSTREAMLOADER
NS_DECL_NSIREQUESTOBSERVER
NS_DECL_NSISTREAMLISTENER
NS_DECL_NSITHREADRETARGETABLESTREAMLISTENER
nsIncrementalStreamLoader();
static nsresult Create(REFNSIID aIID, void** aResult);
protected:
~nsIncrementalStreamLoader() = default;
static nsresult WriteSegmentFun(nsIInputStream*, void*, const char*, uint32_t,
uint32_t, uint32_t*);
// Utility method to free mData, if present, and update other state to
// reflect that no data has been allocated.
void ReleaseData();
nsCOMPtr<nsIIncrementalStreamLoaderObserver> mObserver;
nsCOMPtr<nsISupports> mContext; // the observer's context
nsCOMPtr<nsIRequest> mRequest;
// Buffer to accumulate incoming data. We preallocate if contentSize is
// available.
mozilla::Vector<uint8_t, 0> mData;
// Number of bytes read, which may not match the number of bytes in mData at
// all, as we incrementally remove from there.
mozilla::Atomic<uint32_t, mozilla::MemoryOrdering::Relaxed> mBytesRead;
};
#endif // nsIncrementalStreamLoader_h__
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