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132 строки
5.1 KiB
Plaintext
132 строки
5.1 KiB
Plaintext
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is Mozilla FastLoad code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 2001
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Brendan Eich <brendan@mozilla.org> (original author)
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsIBinaryOutputStream.idl"
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#include "nsrootidl.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 PRUint32 aLength, in PRUint32 aAlignMask);
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[notxpcom] void putBuffer(in charPtr aBuffer, in PRUint32 aLength);
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};
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%{C++
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inline nsresult
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NS_WriteOptionalObject(nsIObjectOutputStream* aStream, nsISupports* aObject,
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PRBool aIsStrongRef)
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{
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PRBool nonnull = (aObject != nsnull);
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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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PRBool nonnull = (aObject != nsnull);
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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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PRBool aIsStrongRef)
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{
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PRBool nonnull = (aObject != nsnull);
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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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