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Diff for /pegasus/src/Pegasus/Common/SCMOStreamer.h between version 1.1 and 1.2

version 1.1, 2009/11/16 17:07:31

version 1.2, 2009/12/15 11:39:34

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//%LICENSE////////////////////////////////////////////////////////////////

// Licensed to The Open Group (TOG) under one or more contributor license

// agreements. Refer to the OpenPegasusNOTICE.txt file distributed with

// this work for additional information regarding copyright ownership.

// Each contributor licenses this file to you under the OpenPegasus Open

// Source License; you may not use this file except in compliance with the

// License.

// Permission is hereby granted, free of charge, to any person obtaining a

// copy of this software and associated documentation files (the "Software"),

// to deal in the Software without restriction, including without limitation

// the rights to use, copy, modify, merge, publish, distribute, sublicense,

// and/or sell copies of the Software, and to permit persons to whom the

// Software is furnished to do so, subject to the following conditions:

// The above copyright notice and this permission notice shall be included

// in all copies or substantial portions of the Software.

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.

// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY

// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,

// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

// SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

//////////////////////////////////////////////////////////////////////////

//%/////////////////////////////////////////////////////////////////////////////

#ifndef Pegasus_SCMOStreamer_h

#define Pegasus_SCMOStreamer_h

#include <Pegasus/Common/Config.h>

#include <Pegasus/Common/ArrayInternal.h>

#include <Pegasus/Common/SCMO.h>

#include <Pegasus/Common/SCMOInstance.h>

#include <Pegasus/Common/CIMBuffer.h>

#include <Pegasus/Common/Array.h>

PEGASUS_NAMESPACE_BEGIN

struct SCMOResolutionTable

{

// Though we really store a pointer here, it is stored as Uint64 to

// become independent from 64bit versus 32bit incarnations of the struct.

Uint64 scmbptr;

Uint32 index;

};

#define PEGASUS_ARRAY_T SCMOResolutionTable

# include <Pegasus/Common/ArrayInter.h>

#undef PEGASUS_ARRAY_T

class PEGASUS_COMMON_LINKAGE SCMOStreamer

{

public:

SCMOStreamer(CIMBuffer& out, Array<SCMOInstance>& x);

// Writes the list of SCMOInstances stored in this instance of SCMOStreamer

// to the output buffer, including their referenced Classes and Instances

void serialize();

// Reads a list of SCMOInstances from the input buffer and stores them in

// this instance of SCMOStreamer, including their referenced Classes and

// Instances

bool deserialize();

// Writes a single SCMOClass to the given CIMBuffer

static void serializeClass(CIMBuffer& out, const SCMOClass& scmoClass);

// Reads a single SCMOClass from the given CIMBuffer

static bool deserializeClass(CIMBuffer& in, SCMOClass& scmoClass);

private:

// This function takes and instance and adds all of its external

// references (SCMOClass and SCMOInstances) to the index tables

// For referenced SCMOInstances, the function recusively calls itself.

// Returns the index position at which the class for this instance was

// inserted in the class resolver table.

Uint32 _appendToResolverTables(const SCMOInstance& inst);

// This function adds the given instance to the instance resolver table,

// which stores the connections between instances and their external

// references.

// Returns the index position at which the instance was inserted in the

// instance resolver table.

Uint32 _appendToInstResolverTable(const SCMOInstance& inst, Uint32 idx);

// Adds an instance to the class resolution table.

// Also adds the class to the class table when neccessary

// Returns the index position at which the instance was inserted in the

// instance resolver table.

Uint32 _appendToClassResolverTable(const SCMOInstance& inst);

// Add the SCMOClass for the given instance to the class table.

// If the class already exists in the table, it returns the index position

// for this class, otherwise appends the class at the end of the table

// and returns the new index position of the class.

Uint32 _appendToClassTable(const SCMOInstance& inst);

static void _putClasses(CIMBuffer& out,Array<SCMBClass_Main*>& classTable);

static bool _getClasses(CIMBuffer& in,Array<SCMBClass_Main*>& classTable);

void _putInstances();

bool _getInstances();

#ifdef PEGASUS_DEBUG

void _dumpTables();

#endif

// The Buffer for output streaming

CIMBuffer& _buf;

// The array of SCMOInstances to be streamed

Array<SCMOInstance>& _scmoInstances;

// Counters for the total number of classes and scmo instances

// to be streamed. These counters increase during streaming process.

Uint32 _ttlNumInstances;

Uint32 _ttlNumClasses;

// Index table used to resolve the absolute pointers to SCMOClasses

// to a relative sequence number (index) in the stream

Array<SCMOResolutionTable> _clsResolverTable;

// Index table used to resolve the absolute pointers to SCMOInstances

// to a relative sequence number (index) in the stream

Array<SCMOResolutionTable> _instResolverTable;

// Table of pointers to SCMOClasses to be streamed

Array<SCMBClass_Main*> _classTable;

};

PEGASUS_NAMESPACE_END

#endif /* Pegasus_SCMOStreamer_h */

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