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- /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is Mozilla FastLoad code.
- *
- * The Initial Developer of the Original Code is
- * Netscape Communications Corporation.
- * Portions created by the Initial Developer are Copyright (C) 2001
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- * Brendan Eich <brendan@mozilla.org> (original author)
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either of the GNU General Public License Version 2 or later (the "GPL"),
- * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
-
- #include "nsIBinaryOutputStream.idl"
- #include "nsrootidl.idl"
-
- /**
- * @See nsIObjectInputStream
- * @See nsIBinaryOutputStream
- */
-
- [scriptable, uuid(92c898ac-5fde-4b99-87b3-5d486422094b)]
- interface nsIObjectOutputStream : nsIBinaryOutputStream
- {
- /**
- * Write the object whose "root" or XPCOM-identity nsISupports is aObject.
- * The cause for writing this object is a strong or weak reference, so the
- * aIsStrongRef argument must tell which kind of pointer is being followed
- * here during serialization.
- *
- * If the object has only one strong reference in the serialization and no
- * weak refs, use writeSingleRefObject. This is a valuable optimization:
- * it saves space in the stream, and cycles on both ends of the process.
- *
- * If the reference being serialized is a pointer to an interface not on
- * the primary inheritance chain ending in the root nsISupports, you must
- * call writeCompoundObject instead of this method.
- */
- void writeObject(in nsISupports aObject, in PRBool aIsStrongRef);
-
- /**
- * Write an object referenced singly and strongly via its root nsISupports
- * or a subclass of its root nsISupports. There must not be other refs to
- * aObject in memory, or in the serialization.
- */
- void writeSingleRefObject(in nsISupports aObject);
-
- /**
- * Write the object referenced by an interface pointer at aObject that
- * inherits from a non-primary nsISupports, i.e., a reference to one of
- * the multiply inherited interfaces derived from an nsISupports other
- * than the root or XPCOM-identity nsISupports; or a reference to an
- * inner object in the case of true XPCOM aggregation. aIID identifies
- * this interface.
- */
- void writeCompoundObject(in nsISupports aObject,
- in nsIIDRef aIID,
- in PRBool aIsStrongRef);
-
- void writeID(in nsIDRef aID);
-
- /**
- * Optimized serialization support -- see nsIStreamBufferAccess.idl.
- */
- [notxpcom] charPtr getBuffer(in PRUint32 aLength, in PRUint32 aAlignMask);
- [notxpcom] void putBuffer(in charPtr aBuffer, in PRUint32 aLength);
- };
-
- %{C++
-
- inline nsresult
- NS_WriteOptionalObject(nsIObjectOutputStream* aStream, nsISupports* aObject,
- PRBool aIsStrongRef)
- {
- PRBool nonnull = (aObject != nsnull);
- nsresult rv = aStream->WriteBoolean(nonnull);
- if (NS_SUCCEEDED(rv) && nonnull)
- rv = aStream->WriteObject(aObject, aIsStrongRef);
- return rv;
- }
-
- inline nsresult
- NS_WriteOptionalSingleRefObject(nsIObjectOutputStream* aStream,
- nsISupports* aObject)
- {
- PRBool nonnull = (aObject != nsnull);
- nsresult rv = aStream->WriteBoolean(nonnull);
- if (NS_SUCCEEDED(rv) && nonnull)
- rv = aStream->WriteSingleRefObject(aObject);
- return rv;
- }
-
- inline nsresult
- NS_WriteOptionalCompoundObject(nsIObjectOutputStream* aStream,
- nsISupports* aObject,
- const nsIID& aIID,
- PRBool aIsStrongRef)
- {
- PRBool nonnull = (aObject != nsnull);
- nsresult rv = aStream->WriteBoolean(nonnull);
- if (NS_SUCCEEDED(rv) && nonnull)
- rv = aStream->WriteCompoundObject(aObject, aIID, aIsStrongRef);
- return rv;
- }
-
- %}
-