зеркало из https://github.com/mozilla/gecko-dev.git
100 строки
3.6 KiB
Plaintext
100 строки
3.6 KiB
Plaintext
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsIBinaryOutputStream.idl"
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/**
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* @See nsIObjectInputStream
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* @See nsIBinaryOutputStream
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*/
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[scriptable, uuid(92c898ac-5fde-4b99-87b3-5d486422094b)]
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interface nsIObjectOutputStream : nsIBinaryOutputStream
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{
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/**
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* Write the object whose "root" or XPCOM-identity nsISupports is aObject.
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* The cause for writing this object is a strong or weak reference, so the
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* aIsStrongRef argument must tell which kind of pointer is being followed
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* here during serialization.
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*
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* If the object has only one strong reference in the serialization and no
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* weak refs, use writeSingleRefObject. This is a valuable optimization:
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* it saves space in the stream, and cycles on both ends of the process.
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*
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* If the reference being serialized is a pointer to an interface not on
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* the primary inheritance chain ending in the root nsISupports, you must
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* call writeCompoundObject instead of this method.
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*/
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void writeObject(in nsISupports aObject, in boolean aIsStrongRef);
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/**
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* Write an object referenced singly and strongly via its root nsISupports
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* or a subclass of its root nsISupports. There must not be other refs to
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* aObject in memory, or in the serialization.
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*/
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void writeSingleRefObject(in nsISupports aObject);
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/**
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* Write the object referenced by an interface pointer at aObject that
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* inherits from a non-primary nsISupports, i.e., a reference to one of
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* the multiply inherited interfaces derived from an nsISupports other
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* than the root or XPCOM-identity nsISupports; or a reference to an
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* inner object in the case of true XPCOM aggregation. aIID identifies
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* this interface.
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*/
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void writeCompoundObject(in nsISupports aObject,
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in nsIIDRef aIID,
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in boolean aIsStrongRef);
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void writeID(in nsIDRef aID);
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/**
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* Optimized serialization support -- see nsIStreamBufferAccess.idl.
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*/
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[notxpcom] charPtr getBuffer(in uint32_t aLength, in uint32_t aAlignMask);
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[notxpcom] void putBuffer(in charPtr aBuffer, in uint32_t aLength);
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};
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%{C++
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already_AddRefed<nsIObjectOutputStream>
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NS_NewObjectOutputStream(nsIOutputStream* aOutputStream);
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inline nsresult
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NS_WriteOptionalObject(nsIObjectOutputStream* aStream, nsISupports* aObject,
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bool aIsStrongRef)
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{
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bool nonnull = (aObject != nullptr);
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nsresult rv = aStream->WriteBoolean(nonnull);
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if (NS_SUCCEEDED(rv) && nonnull)
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rv = aStream->WriteObject(aObject, aIsStrongRef);
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return rv;
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}
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inline nsresult
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NS_WriteOptionalSingleRefObject(nsIObjectOutputStream* aStream,
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nsISupports* aObject)
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{
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bool nonnull = (aObject != nullptr);
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nsresult rv = aStream->WriteBoolean(nonnull);
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if (NS_SUCCEEDED(rv) && nonnull)
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rv = aStream->WriteSingleRefObject(aObject);
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return rv;
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}
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inline nsresult
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NS_WriteOptionalCompoundObject(nsIObjectOutputStream* aStream,
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nsISupports* aObject,
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const nsIID& aIID,
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bool aIsStrongRef)
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{
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bool nonnull = (aObject != nullptr);
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nsresult rv = aStream->WriteBoolean(nonnull);
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if (NS_SUCCEEDED(rv) && nonnull)
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rv = aStream->WriteCompoundObject(aObject, aIID, aIsStrongRef);
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return rv;
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}
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%}
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