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BUG#: 4734
TITLE: JMPI Recursive use of cimom handle

DESCRIPTION:
There are now two CIMOMHandles that are created.  The first
is only for calls to getClass.	This is the semaphore protected handle since
there cannot be two simultaneous calls from the two running threads.  The
second handle is now used for the provider code and is not protected.

//%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: Yi Zhou, Hewlett-Packard Company(yi_zhou@hp.com)
//              Mike Day, IBM (mdday@us.ibm.com)
//              Adrian Schuur, schuur@de.ibm.com
//
//%/////////////////////////////////////////////////////////////////////////////

#include "JMPIProvider.h"

#include <Pegasus/Common/Tracer.h>
#include <Pegasus/ProviderManager2/JMPI/JMPIProvider.h>
#include <Pegasus/ProviderManager2/JMPI/JMPIProviderModule.h>

PEGASUS_NAMESPACE_BEGIN
PEGASUS_USING_STD;

#ifdef PEGASUS_DEBUG
#define DDD(x) if (JMPIjvm::trace) x;
#else
#define DDD(x)
#endif

#include "Convert.h"

// set current operations to 1 to prevent an unload
// until the provider has had a chance to initialize
JMPIProvider::JMPIProvider (const String       &name,
                            JMPIProviderModule *module,
                            ProviderVector     *mv)
{
   DDD(PEGASUS_STD(cout)<<"--- JMPIProvider::JMPIProvider(name, module, mv)"<<PEGASUS_STD(endl));

   _module               = module;
   _cimom_handle         = 0;
   _java_cimom_handle    = new CIMOMHandle ();
   _name                 = name;
   _no_unload            = false;
   _rm                   = 0;
   _current_operations   = 1;
   _currentSubscriptions = 0;
   miVector              = *mv;
   jProvider             = mv->jProvider;
   jProviderClass        = mv->jProviderClass;
   noUnload              = false;
   cachedClass           = NULL;
}

JMPIProvider::JMPIProvider (JMPIProvider *pr)
{
   DDD(PEGASUS_STD(cout)<<"--- JMPIProvider::JMPIProvider(pr)"<<PEGASUS_STD(endl));

   _module               = pr->_module;
   _cimom_handle         = 0;
   _java_cimom_handle    = new CIMOMHandle ();
   _name                 = pr->_name;
   _no_unload            = pr->noUnload;
   _rm                   = 0;
   _current_operations   = 1;
   _currentSubscriptions = 0;
   miVector              = pr->miVector;
   noUnload              = pr->noUnload;
   cachedClass           = NULL;
}

JMPIProvider::~JMPIProvider(void)
{
   DDD(PEGASUS_STD(cout)<<"--- JMPIProvider::~JMPIProvider()"<<PEGASUS_STD(endl));

   delete _java_cimom_handle;
   delete cachedClass;
}

JMPIProvider::Status JMPIProvider::getStatus(void) const
{
    AutoMutex lock(_statusMutex);
    return(_status);
}

JMPIProviderModule *JMPIProvider::getModule(void) const
{
    return(_module);
}

String JMPIProvider::getName(void) const
{
    return(_name);
}

void JMPIProvider::initialize(CIMOMHandle& cimom)
{
    _status       = INITIALIZING;
    _cimom_handle = &cimom;

    DDD(PEGASUS_STD(cout)<<"--- JMPIProvider::Initialize()"<<PEGASUS_STD(endl));

    JvmVector *jv  = 0;
    JNIEnv    *env = JMPIjvm::attachThread(&jv);

    if (!env)
    {
        throw PEGASUS_CIM_EXCEPTION_L (CIM_ERR_FAILED,
                                       MessageLoaderParms("ProviderManager.JMPI.INIT_JVM_FAILED",
                                                          "Could not initialize the JVM (Java Virtual Machine) runtime environment."));
    }

    // public abstract void initialize (org.pegasus.jmpi.CIMOMHandle ch)
    //        throws org.pegasus.jmpi.CIMException
    jmethodID id = env->GetMethodID((jclass)jProviderClass,
                                    "initialize",
                                    "(Lorg/pegasus/jmpi/CIMOMHandle;)V");

    DDD(PEGASUS_STD(cout)
        <<"--- JMPIProvider::Initialize:id = "
        <<PEGASUS_STD(hex)
        <<(int)id
        <<PEGASUS_STD(dec)
        <<PEGASUS_STD(endl));

    JMPIjvm::checkException(env);

    if (id != NULL)
    {
       jstring jName = env->NewStringUTF(_name.getCString());

       JMPIjvm::checkException(env);

       jint    jCimomRef = DEBUG_ConvertCToJava (CIMOMHandle*, jint, _java_cimom_handle);
       jobject jch       = env->NewObject(jv->CIMOMHandleClassRef,
                                          JMPIjvm::jv.CIMOMHandleNewISt,
                                          jCimomRef,
                                          jName);

       JMPIjvm::checkException(env);

       env->CallVoidMethod((jobject)jProvider,id,jch);

       JMPIjvm::checkException(env);
    }
    env->ExceptionClear();

    JMPIjvm::detachThread();

    _status             = INITIALIZED;
    _current_operations = 0;
}

Boolean JMPIProvider::tryTerminate(void)
{
    return false;
}

void JMPIProvider::_terminate(void)
{
}


void JMPIProvider::terminate(void)
{
}

Boolean JMPIProvider::operator == (const void *key) const
{
   if( (void *)this == key)
      return true;
   return false;
}

Boolean JMPIProvider::operator == (const JMPIProvider &prov) const
{
   if(String::equalNoCase(_name, prov._name))
      return true;
   return false;
}
/*
void JMPIProvider::get_idle_timer(struct timeval *t)
{
   if(t && _cimom_handle)
      _cimom_handle->get_idle_timer(t);
}

void JMPIProvider::update_idle_timer(void)
{
   if(_cimom_handle)
      _cimom_handle->update_idle_timer();
}

Boolean JMPIProvider::pending_operation(void)
{
   if(_cimom_handle)
      return _cimom_handle->pending_operation();
   return false;
}


Boolean JMPIProvider::unload_ok(void)
{
   return false;
}
*/
//   force provider manager to keep in memory
void JMPIProvider::protect(void)
{
  // _no_unload++;
}

// allow provider manager to unload when idle
void JMPIProvider::unprotect(void)
{
  // _no_unload--;
}

Boolean JMPIProvider::testIfZeroAndIncrementSubscriptions ()
{
    AutoMutex lock (_currentSubscriptionsMutex);
    Boolean isZero = (_currentSubscriptions == 0);
    _currentSubscriptions++;

    return isZero;
}

Boolean JMPIProvider::decrementSubscriptionsAndTestIfZero ()
{
    AutoMutex lock (_currentSubscriptionsMutex);
    _currentSubscriptions--;
    Boolean isZero = (_currentSubscriptions == 0);

    return isZero;
}

Boolean JMPIProvider::testSubscriptions ()
{
    AutoMutex lock (_currentSubscriptionsMutex);
    Boolean currentSubscriptions = (_currentSubscriptions > 0);

    return currentSubscriptions;
}

void JMPIProvider::resetSubscriptions ()
{
    AutoMutex lock (_currentSubscriptionsMutex);
    _currentSubscriptions = 0;
}

void JMPIProvider::setProviderInstance (const CIMInstance & instance)
{
    _providerInstance = instance;
}

CIMInstance JMPIProvider::getProviderInstance ()
{
    return _providerInstance;
}

PEGASUS_NAMESPACE_END