1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/netwerk/base/public/nsIStreamListenerTee.idl Wed Dec 31 06:09:35 2014 +0100 1.3 @@ -0,0 +1,50 @@ 1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public 1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this 1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 1.7 + 1.8 +#include "nsIStreamListener.idl" 1.9 + 1.10 +interface nsIOutputStream; 1.11 +interface nsIRequestObserver; 1.12 +interface nsIEventTarget; 1.13 + 1.14 +/** 1.15 + * As data "flows" into a stream listener tee, it is copied to the output stream 1.16 + * and then forwarded to the real listener. 1.17 + */ 1.18 +[scriptable, uuid(62b27fc1-6e8c-4225-8ad0-b9d44252973a)] 1.19 +interface nsIStreamListenerTee : nsIStreamListener 1.20 +{ 1.21 + /** 1.22 + * Initalize the tee. 1.23 + * 1.24 + * @param listener 1.25 + * the original listener the tee will propagate onStartRequest, 1.26 + * onDataAvailable and onStopRequest notifications to, exceptions from 1.27 + * the listener will be propagated back to the channel 1.28 + * @param sink 1.29 + * the stream the data coming from the channel will be written to, 1.30 + * should be blocking 1.31 + * @param requestObserver 1.32 + * optional parameter, listener that gets only onStartRequest and 1.33 + * onStopRequest notifications; exceptions threw within this optional 1.34 + * observer are also propagated to the channel, but exceptions from 1.35 + * the original listener (listener parameter) are privileged 1.36 + */ 1.37 + void init(in nsIStreamListener listener, 1.38 + in nsIOutputStream sink, 1.39 + [optional] in nsIRequestObserver requestObserver); 1.40 + 1.41 + /** 1.42 + * Initalize the tee like above, but with the extra parameter to make it 1.43 + * possible to copy the output asynchronously 1.44 + * @param anEventTarget 1.45 + * if set, this event-target is used to copy data to the output stream, 1.46 + * giving an asynchronous tee 1.47 + */ 1.48 + void initAsync(in nsIStreamListener listener, 1.49 + in nsIEventTarget eventTarget, 1.50 + in nsIOutputStream sink, 1.51 + [optional] in nsIRequestObserver requestObserver); 1.52 + 1.53 +};