xpcom/io/nsIObjectInputStream.idl

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.

michael@0 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0 2 /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0 3 * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 5
michael@0 6 #include "nsIBinaryInputStream.idl"
michael@0 7
michael@0 8 /**
michael@0 9 * @see nsIObjectOutputStream
michael@0 10 * @see nsIBinaryInputStream
michael@0 11 */
michael@0 12
michael@0 13 [scriptable, uuid(6c248606-4eae-46fa-9df0-ba58502368eb)]
michael@0 14 interface nsIObjectInputStream : nsIBinaryInputStream
michael@0 15 {
michael@0 16 /**
michael@0 17 * Read an object from this stream to satisfy a strong or weak reference
michael@0 18 * to one of its interfaces. If the interface was not along the primary
michael@0 19 * inheritance chain ending in the "root" or XPCOM-identity nsISupports,
michael@0 20 * readObject will QueryInterface from the deserialized object root to the
michael@0 21 * correct interface, which was specified when the object was serialized.
michael@0 22 *
michael@0 23 * @see nsIObjectOutputStream
michael@0 24 */
michael@0 25 nsISupports readObject(in boolean aIsStrongRef);
michael@0 26
michael@0 27 [notxpcom] nsresult readID(out nsID aID);
michael@0 28
michael@0 29 /**
michael@0 30 * Optimized deserialization support -- see nsIStreamBufferAccess.idl.
michael@0 31 */
michael@0 32 [notxpcom] charPtr getBuffer(in uint32_t aLength, in uint32_t aAlignMask);
michael@0 33 [notxpcom] void putBuffer(in charPtr aBuffer, in uint32_t aLength);
michael@0 34 };
michael@0 35
michael@0 36 %{C++
michael@0 37
michael@0 38 inline nsresult
michael@0 39 NS_ReadOptionalObject(nsIObjectInputStream* aStream, bool aIsStrongRef,
michael@0 40 nsISupports* *aResult)
michael@0 41 {
michael@0 42 bool nonnull;
michael@0 43 nsresult rv = aStream->ReadBoolean(&nonnull);
michael@0 44 if (NS_SUCCEEDED(rv)) {
michael@0 45 if (nonnull)
michael@0 46 rv = aStream->ReadObject(aIsStrongRef, aResult);
michael@0 47 else
michael@0 48 *aResult = nullptr;
michael@0 49 }
michael@0 50 return rv;
michael@0 51 }
michael@0 52
michael@0 53 %}

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