xpcom/glue/nsXPTCUtils.h

Tue, 06 Jan 2015 21:39:09 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Tue, 06 Jan 2015 21:39:09 +0100
branch
TOR_BUG_9701
changeset 8
97036ab72558
permissions
-rw-r--r--

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 /* This Source Code Form is subject to the terms of the Mozilla Public
     2  * License, v. 2.0. If a copy of the MPL was not distributed with this
     3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     5 #ifndef nsXPTCUtils_h__
     6 #define nsXPTCUtils_h__
     8 #include "xptcall.h"
    10 /**
    11  * A helper class that initializes an xptcall helper at construction
    12  * and releases it at destruction.
    13  */
    14 class nsAutoXPTCStub : protected nsIXPTCProxy
    15 {
    16 public:
    17   nsISomeInterface* mXPTCStub;
    19 protected:
    20   nsAutoXPTCStub() : mXPTCStub(nullptr) { }
    22   nsresult
    23   InitStub(const nsIID& aIID)
    24   {
    25     return NS_GetXPTCallStub(aIID, this, &mXPTCStub);
    26   }
    28   ~nsAutoXPTCStub()
    29   {
    30     if (mXPTCStub)
    31       NS_DestroyXPTCallStub(mXPTCStub);
    32   }
    33 };
    35 #endif // nsXPTCUtils_h__

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