netwerk/base/nsIStreamListener.idl
author Mozilla Releng Treescript <release+treescript@mozilla.org>
Sun, 07 Aug 2022 07:00:20 +0000
changeset 626346 44a5d0f480929c4a3850e68f2701a907439f8c57
parent 461561 20fcf9d9494ac77d9c8166444e5fa8346ff13be1
permissions -rw-r--r--
no bug - Bumping Firefox l10n changesets r=release a=l10n-bump DONTBUILD ia -> 13b119f6b22fd39552b8ca6d8365d0fdfee076fd uk -> 04dd614d47732b72ee99dd913df676bb70d1cd60

/* -*- 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/. */

#include "nsIRequestObserver.idl"

interface nsIInputStream;

/**
 * nsIStreamListener
 */
[scriptable, uuid(3b4c8a77-76ba-4610-b316-678c73a3b88c)]
interface nsIStreamListener : nsIRequestObserver
{
    /**
     * Called when the next chunk of data (corresponding to the request) may
     * be read without blocking the calling thread.  The onDataAvailable impl
     * must read exactly |aCount| bytes of data before returning.
     *
     * @param aRequest request corresponding to the source of the data
     * @param aInputStream input stream containing the data chunk
     * @param aOffset
     *        Number of bytes that were sent in previous onDataAvailable calls
     *        for this request. In other words, the sum of all previous count
     *        parameters.
     * @param aCount number of bytes available in the stream
     *
     * NOTE: The aInputStream parameter must implement readSegments.
     *
     * An exception thrown from onDataAvailable has the side-effect of
     * causing the request to be canceled.
     */
    void onDataAvailable(in nsIRequest aRequest,
                         in nsIInputStream aInputStream,
                         in unsigned long long aOffset,
                         in unsigned long aCount);
};