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BUG#: 5314
TITLE: IPC Refactoring

DESCRIPTION: This patch cleans up the IPC related classes. It (1) reorganizes
related classes into their own headers, (2) makes the mutex class recursive to
eliminate recursive lock exclusion logic, (3) reimplements condition variables,
renames dozens of global functions.

//%2006////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development
// Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.
// Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.;
// IBM Corp.; EMC Corporation, The Open Group.
// Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.;
// IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.
// Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.;
// EMC Corporation; VERITAS Software Corporation; The Open Group.
// Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.;
// EMC Corporation; Symantec Corporation; The Open Group.
//
// 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.
//
//==============================================================================
//
// Author: Chip Vincent (cvincent@us.ibm.com)
//
// Modified By:
//      Carol Ann Krug Graves, Hewlett-Packard Company (carolann_graves@hp.com)
//      Mike Day, IBM (mdday@us.ibm.com)
//      Roger Kumpf, Hewlett-Packard Company (roger_kumpf@hp.com)
//
//%/////////////////////////////////////////////////////////////////////////////

#include <Pegasus/Common/Config.h>
#include <Pegasus/Common/CIMMessage.h>
#include <Pegasus/Common/OperationContext.h>
#include <Pegasus/Common/AsyncQueue.h>
#include <Pegasus/Common/MessageQueueService.h>

#ifdef PEGASUS_OS_OS400
#include <qycmutilu2.H>
#include "OS400ConvertChar.h"
#include "CIMOMHandleOS400UserState.h"
#include "CIMOMHandleOS400SystemState.h"
#endif

#include "CIMOMHandleRep.h"

PEGASUS_NAMESPACE_BEGIN

class InternalCIMOMHandleMessageQueue : public MessageQueue
{
public:
    InternalCIMOMHandleMessageQueue();
    virtual ~InternalCIMOMHandleMessageQueue();

    virtual void handleEnqueue();

    CIMResponseMessage * sendRequest(CIMRequestMessage * request);

private:
    Uint32 _output_qid;
    Uint32 _return_qid;

    Mutex _mutex;
    AsyncQueue<Message> _response;

};

/**
    InternalCIMOMHandleRep is the default, in-process CIMOMHandle
    implementation.  The code was extracted from CIMOMHandle.cpp to allow
    for polymorphic CIMOMHandleRep implementations.
 */
class InternalCIMOMHandleRep : public CIMOMHandleRep
{
public:
    InternalCIMOMHandleRep();
    #ifdef PEGASUS_OS_OS400
    InternalCIMOMHandleRep(Uint32 os400key);
    #endif
    virtual ~InternalCIMOMHandleRep();

    virtual CIMClass getClass(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMName& className,
        Boolean localOnly,
        Boolean includeQualifiers,
        Boolean includeClassOrigin,
        const CIMPropertyList& propertyList);

    virtual Array<CIMClass> enumerateClasses(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMName& className,
        Boolean deepInheritance,
        Boolean localOnly,
        Boolean includeQualifiers,
        Boolean includeClassOrigin);

    virtual Array<CIMName> enumerateClassNames(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMName& className,
        Boolean deepInheritance);

    virtual void createClass(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMClass& newClass);

    virtual void modifyClass(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMClass& modifiedClass);

    virtual void deleteClass(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMName& className);

    virtual CIMInstance getInstance(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMObjectPath& instanceName,
        Boolean localOnly,
        Boolean includeQualifiers,
        Boolean includeClassOrigin,
        const CIMPropertyList& propertyList);

    virtual Array<CIMInstance> enumerateInstances(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMName& className,
        Boolean deepInheritance,
        Boolean localOnly,
        Boolean includeQualifiers,
        Boolean includeClassOrigin,
        const CIMPropertyList& propertyList);

    virtual Array<CIMObjectPath> enumerateInstanceNames(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMName& className);

    virtual CIMObjectPath createInstance(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMInstance& newInstance);

    virtual void modifyInstance(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMInstance& modifiedInstance,
        Boolean includeQualifiers,
        const CIMPropertyList& propertyList);

    virtual void deleteInstance(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMObjectPath& instanceName);

    virtual Array<CIMObject> execQuery(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const String& queryLanguage,
        const String& query);

    virtual Array<CIMObject> associators(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMObjectPath& objectName,
        const CIMName& assocClass,
        const CIMName& resultClass,
        const String& role,
        const String& resultRole,
        Boolean includeQualifiers,
        Boolean includeClassOrigin,
        const CIMPropertyList& propertyList);

    virtual Array<CIMObjectPath> associatorNames(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMObjectPath& objectName,
        const CIMName& assocClass,
        const CIMName& resultClass,
        const String& role,
        const String& resultRole);

    virtual Array<CIMObject> references(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMObjectPath& objectName,
        const CIMName& resultClass,
        const String& role,
        Boolean includeQualifiers,
        Boolean includeClassOrigin,
        const CIMPropertyList& propertyList);

    virtual Array<CIMObjectPath> referenceNames(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMObjectPath& objectName,
        const CIMName& resultClass,
        const String& role);

    // property operations
    virtual CIMValue getProperty(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMObjectPath& instanceName,
        const CIMName& propertyName);

    virtual void setProperty(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMObjectPath& instanceName,
        const CIMName& propertyName,
        const CIMValue& newValue);

    virtual CIMValue invokeMethod(
        const OperationContext & context,
        const CIMNamespaceName& nameSpace,
        const CIMObjectPath& instanceName,
        const CIMName& methodName,
        const Array<CIMParamValue>& inParameters,
        Array<CIMParamValue>& outParameters);

    virtual void disallowProviderUnload();  // Overload for OS/400
    virtual void allowProviderUnload();  // Overload for OS/400
    virtual OperationContext getResponseContext();

    #ifdef PEGASUS_OS_OS400
    virtual void setOS400ProfileHandle(const char* profileHandle);
    #endif

private:
    InternalCIMOMHandleRep(const InternalCIMOMHandleRep& rep);
    InternalCIMOMHandleRep& operator=(const InternalCIMOMHandleRep& rep);

    CIMResponseMessage* do_request(CIMRequestMessage* request);

private:
    #ifdef PEGASUS_OS_OS400
    char os400PH[12];
    CIMOMHandleOS400UserState _chOS400;
    #endif

    InternalCIMOMHandleMessageQueue _queue;

};

PEGASUS_NAMESPACE_END