/* 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/. */

#include "nsISupports.idl"

interface nsITransport;
interface nsIInputStream;
interface nsIOutputStream;
interface nsIInputAvailableCallback;

/**
 * This service read/writes a stream on a background thread.
 *
 * Note: instead of using this interface, probably you want to use
 * NS_MakeAsyncNonBlockingInputStream.
 *
 * Use this service to transform any blocking stream (e.g., file stream)
 * into a fully asynchronous stream that can be read/written without
 * blocking the main thread.
 */
[builtinclass, scriptable, uuid(5e0adf7d-9785-45c3-a193-04f25a75da8f)]
interface nsIStreamTransportService : nsISupports
{
    /**
     * CreateInputTransport
     *
     * @param aStream
     *        The input stream that will be read on a background thread.
     *        This stream must implement "blocking" stream semantics.
     * @param aCloseWhenDone
     *        Specify this flag to have the input stream closed once its
     *        contents have been completely read.
     *
     * @return nsITransport instance.
     */
    nsITransport createInputTransport(in nsIInputStream aStream,
                                      in boolean aCloseWhenDone);

    void InputAvailable(in nsIInputStream aStream,
                        in nsIInputAvailableCallback aCallback);
};

[uuid(ff2da731-44d0-4dd9-8236-c99387fec721)]
interface nsIInputAvailableCallback : nsISupports
{
  void onInputAvailableComplete(in unsigned long long available,
                                in nsresult available_return_code);
};