AltDataOutputStreamChild.h

Enable keyboard shortcuts

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set sw=2 ts=8 et tw=80 : */

/* 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 mozilla_net_AltDataOutputStreamChild_h

#define mozilla_net_AltDataOutputStreamChild_h

#include "mozilla/net/PAltDataOutputStreamChild.h"

#include "nsIAsyncOutputStream.h"

namespace mozilla {

namespace net {

class AltDataOutputStreamChild : public PAltDataOutputStreamChild,

                                 public nsIAsyncOutputStream {

 public:

  NS_DECL_ISUPPORTS

  NS_DECL_NSIASYNCOUTPUTSTREAM

  NS_DECL_NSIOUTPUTSTREAM

  explicit AltDataOutputStreamChild();

  void AddIPDLReference();

  void ReleaseIPDLReference();

  // Saves an error code which will be reported to the writer on the next call.

  virtual mozilla::ipc::IPCResult RecvError(const nsresult& err);

  virtual mozilla::ipc::IPCResult RecvDeleteSelf();

 private:

  virtual ~AltDataOutputStreamChild() = default;

  // Sends data to the parent process in 256k chunks.

  bool WriteDataInChunks(const nsDependentCSubstring& data);

  void NotifyListener();

  bool mIPCOpen;

  // If there was an error opening the output stream or writing to it on the

  // parent side, this will be set to the error code. We check it before we

  // write so we can report an error to the consumer.

  nsresult mError;

  nsCOMPtr<nsIOutputStreamCallback> mCallback;

  uint32_t mCallbackFlags;

  nsCOMPtr<nsIEventTarget> mCallbackTarget;

};

}  // namespace net

}  // namespace mozilla

#endif  // mozilla_net_AltDataOutputStreamChild_h