startupcache/nsIStartupCache.idl
author Ryan VanderMeulen <ryanvm@gmail.com>
Mon, 27 Feb 2017 14:25:27 -0500
changeset 374152 f9a4f73f014b633224ca4f48b7a75a1304b9ba02
parent 350865 ee8798338529a44eab6a7ec005a6321001eff247
permissions -rw-r--r--
Bug 1341653 - Add NEWS to the local hyphen checkout to more easily track future updates. r=tjr

/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * 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 "nsIInputStream.idl"
#include "nsISupports.idl"
#include "nsIObserver.idl"
#include "nsIObjectOutputStream.idl"

%{C++
#include "mozilla/UniquePtr.h"
%}

[uuid(25957820-90a1-428c-8739-b0845d3cc534)]
interface nsIStartupCache : nsISupports
{

  /** This interface is provided for testing purposes only, basically
   *  just to solve link vagaries. See docs in StartupCache.h
   *  GetBuffer, PutBuffer, and InvalidateCache act as described 
   *  in that file. */

  uint32_t getBuffer(in string aID, out charPtr aBuffer);
%{C++
  /* A more convenient interface for using from C++.  */
  nsresult GetBuffer(const char* id, mozilla::UniquePtr<char[]>* outbuf, uint32_t* length)
  {
    char* buf;
    nsresult rv = GetBuffer(id, &buf, length);
    NS_ENSURE_SUCCESS(rv, rv);
    outbuf->reset(buf);
    return rv;
  }
%}

  void putBuffer(in string aID, in string aBuffer, 
                            in uint32_t aLength);
 
  void invalidateCache();
  

  /** In debug builds, wraps this object output stream with a stream that will 
   *  detect and prevent the write of a multiply-referenced non-singleton object 
   *  during serialization. In non-debug, returns an add-ref'd pointer to
   *  original stream, unwrapped. */
  nsIObjectOutputStream getDebugObjectOutputStream(in nsIObjectOutputStream aStream);

  /* Allows clients to simulate the behavior of ObserverService. */
  readonly attribute nsIObserver observer;
};