CacheFileOutputStream.h

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/* 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 CacheFileOutputStream__h__

#define CacheFileOutputStream__h__

#include "nsIAsyncOutputStream.h"

#include "nsISeekableStream.h"

#include "nsCOMPtr.h"

#include "CacheFileChunk.h"

namespace mozilla {

namespace net {

class CacheFile;

class CacheOutputCloseListener;

class CacheFileOutputStream : public nsIAsyncOutputStream,

                              public nsISeekableStream,

                              public CacheFileChunkListener {

  NS_DECL_THREADSAFE_ISUPPORTS

  NS_DECL_NSIOUTPUTSTREAM

  NS_DECL_NSIASYNCOUTPUTSTREAM

  NS_DECL_NSISEEKABLESTREAM

  NS_DECL_NSITELLABLESTREAM

 public:

  CacheFileOutputStream(CacheFile* aFile,

                        CacheOutputCloseListener* aCloseListener,

                        bool aAlternativeData);

  NS_IMETHOD OnChunkRead(nsresult aResult, CacheFileChunk* aChunk) override;

  NS_IMETHOD OnChunkWritten(nsresult aResult, CacheFileChunk* aChunk) override;

  NS_IMETHOD OnChunkAvailable(nsresult aResult, uint32_t aChunkIdx,

                              CacheFileChunk* aChunk) override;

  NS_IMETHOD OnChunkUpdated(CacheFileChunk* aChunk) override;

  void NotifyCloseListener();

  bool IsAlternativeData() const { return mAlternativeData; };

  // Memory reporting

  size_t SizeOfIncludingThis(mozilla::MallocSizeOf mallocSizeOf) const;

 private:

  virtual ~CacheFileOutputStream();

  nsresult CloseWithStatusLocked(nsresult aStatus);

  void ReleaseChunk();

  void EnsureCorrectChunk(bool aReleaseOnly);

  void FillHole();

  void NotifyListener();

  RefPtr<CacheFile> mFile;

  RefPtr<CacheFileChunk> mChunk;

  RefPtr<CacheOutputCloseListener> mCloseListener;

  int64_t mPos;

  bool mClosed : 1;

  bool const mAlternativeData : 1;

  nsresult mStatus;

  nsCOMPtr<nsIOutputStreamCallback> mCallback;

  uint32_t mCallbackFlags;

  nsCOMPtr<nsIEventTarget> mCallbackTarget;

};

}  // namespace net

}  // namespace mozilla

#endif