The Tor Browser: accessible/src/windows/msaa/IUnknownImpl.cpp@97036ab72558

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

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

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

     3 /* This Source Code Form is subject to the terms of the Mozilla Public

     4  * License, v. 2.0. If a copy of the MPL was not distributed with this

     5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. *

     6  */

     8 #include "IUnknownImpl.h"

    10 #include "nsDebug.h"

    12 #ifdef MOZ_CRASHREPORTER

    13 #include "nsExceptionHandler.h"

    14 #endif

    16 namespace mozilla {

    17 namespace a11y {

    19 HRESULT

    20 GetHRESULT(nsresult aResult)

    21 {

    22   switch (aResult) {

    23     case NS_OK:

    24       return S_OK;

    26     case NS_ERROR_INVALID_ARG:

    27       return E_INVALIDARG;

    29     case NS_ERROR_OUT_OF_MEMORY:

    30       return E_OUTOFMEMORY;

    32     case NS_ERROR_NOT_IMPLEMENTED:

    33       return E_NOTIMPL;

    35     default:

    36       return E_FAIL;

    37   }

    38 }

    40 int

    41 FilterExceptions(unsigned int aCode, EXCEPTION_POINTERS* aExceptionInfo)

    42 {

    43   if (aCode == EXCEPTION_ACCESS_VIOLATION) {

    44 #ifdef MOZ_CRASHREPORTER

    45     // MSAA swallows crashes (because it is COM-based) but we still need to

    46     // learn about those crashes so we can fix them. Make sure to pass them to

    47     // the crash reporter.

    48     CrashReporter::WriteMinidumpForException(aExceptionInfo);

    49 #endif

    50   } else {

    51     NS_NOTREACHED("We should only be catching crash exceptions");

    52   }

    54   return EXCEPTION_CONTINUE_SEARCH;

    55 }

    57 } // namespace a11y

    58 } // namespace mozilla

The Tor Browser / file revision

accessible/src/windows/msaa/IUnknownImpl.cpp@97036ab72558

accessible/src/windows/msaa/IUnknownImpl.cpp