116 lines
4.1 KiB
Plaintext
116 lines
4.1 KiB
Plaintext
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
|
|
* The contents of this file are subject to the Netscape 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/NPL/
|
|
*
|
|
* 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 Netscape are
|
|
* Copyright (C) 2001 Netscape Communications Corporation. All
|
|
* Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Brendan Eich <brendan@mozilla.org> (original author)
|
|
*/
|
|
|
|
#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 at 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;
|
|
}
|
|
|
|
%}
|