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BUG#: 5356
TITLE: Consolidate reference counting logic in DynamicLibrary
DESCRIPTION: Move the load/unload counting logic from the provider managers to the DynamicLibrary class.  Also, consolidate DynamicLibraryUnix.cpp and DynamicLibraryVms.cpp into DynamicLibraryPOSIX.cpp.

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#include "CMPI_Version.h"

#include "CMPIProviderModule.h"

#include <Pegasus/Common/FileSystem.h>
#include <Pegasus/Common/MessageLoader.h> //l10n
#include <Pegasus/Config/ConfigManager.h>
#include <Pegasus/ProviderManager2/CMPI/CMPIProvider.h>
#include <Pegasus/ProviderManager2/CMPI/CMPIProviderManager.h>

PEGASUS_USING_STD;
PEGASUS_NAMESPACE_BEGIN

CMPIProviderModule::CMPIProviderModule(const String & fileName)
{
   genericProviderModule=0;

   String resolvedFileName;

#ifdef PEGASUS_OS_TYPE_WINDOWS
   if (fileName[1] != ':')
#else
   if (fileName[0]!='/')
#endif
      resolvedFileName=ProviderManager::_resolvePhysicalName(fileName);
   else resolvedFileName=fileName;

   _library = DynamicLibrary(resolvedFileName);
}

CMPIProviderModule::~CMPIProviderModule(void)
{
}

ProviderVector CMPIProviderModule::load(const String & providerName)
{
    String realProviderName(providerName);
    realProviderName.remove(0,1);

    if (!_library.load())
    {

        throw Exception(MessageLoaderParms("ProviderManager.CMPI.CMPIProviderModule.CANNOT_LOAD_LIBRARY",
            "ProviderLoadFailure: ($0:$1):Cannot load library, error: $2",
            _library.getFileName(),
            realProviderName,
            _library.getLoadErrorMessage()));
    }

    char symbolName[512];
    CString mName=realProviderName.getCString();
    ProviderVector miVector;
    memset(&miVector,0,sizeof(ProviderVector));
    int specificMode=0;

    if ((miVector.createGenInstMI=(CREATE_GEN_INST_MI)
           _library.getSymbol(_Generic_Create_InstanceMI))) {
       if (miVector.createGenInstMI)
         miVector.miTypes|=CMPI_MIType_Instance;
       miVector.genericMode=1;
    }

    strcpy(symbolName,(const char*)mName);
    strcat(symbolName,_Create_InstanceMI);
    if ((miVector.createInstMI=(CREATE_INST_MI)
          _library.getSymbol(symbolName))) {
       if (miVector.createInstMI)
          miVector.miTypes|=CMPI_MIType_Instance;
       specificMode=1;
    }


    if ((miVector.createGenAssocMI=(CREATE_GEN_ASSOC_MI)
          _library.getSymbol(_Generic_Create_AssociationMI))) {
       if (miVector.createGenAssocMI)
          miVector.miTypes|=CMPI_MIType_Association;
       miVector.genericMode=1;
    }

    strcpy(symbolName,(const char*)mName);
    strcat(symbolName,_Create_AssociationMI);
    if ((miVector.createAssocMI=(CREATE_ASSOC_MI)
          _library.getSymbol(symbolName))) {
       if (miVector.createAssocMI)
         miVector.miTypes|=CMPI_MIType_Association;
       specificMode=1;
    }


    if ((miVector.createGenMethMI=(CREATE_GEN_METH_MI)
          _library.getSymbol(_Generic_Create_MethodMI))) {
       if (miVector.createGenMethMI)
          miVector.miTypes|=CMPI_MIType_Method;
       miVector.genericMode=1;
    }

    strcpy(symbolName,(const char*)mName);
    strcat(symbolName,_Create_MethodMI);
    if ((miVector.createMethMI=(CREATE_METH_MI)
          _library.getSymbol(symbolName))) {
       if (miVector.createMethMI)
          miVector.miTypes|=CMPI_MIType_Method;
       specificMode=1;
    }


    if ((miVector.createGenPropMI=(CREATE_GEN_PROP_MI)
          _library.getSymbol(_Generic_Create_PropertyMI))) {
       if (miVector.createGenPropMI)
          miVector.miTypes|=CMPI_MIType_Property;
       miVector.genericMode=1;
    }

    strcpy(symbolName,(const char*)mName);
    strcat(symbolName,_Create_PropertyMI);
    if ((miVector.createPropMI=(CREATE_PROP_MI)
              _library.getSymbol(symbolName))) {
       if (miVector.createPropMI)
          miVector.miTypes|=CMPI_MIType_Property;
       specificMode=1;
    }


    if ((miVector.createGenIndMI=(CREATE_GEN_IND_MI)
          _library.getSymbol(_Generic_Create_IndicationMI))) {
       if (miVector.createGenIndMI)
          miVector.miTypes|=CMPI_MIType_Indication;
       miVector.genericMode=1;
    }

    strcpy(symbolName,(const char*)mName);
    strcat(symbolName,_Create_IndicationMI);
    if ((miVector.createIndMI=(CREATE_IND_MI)
           _library.getSymbol(symbolName))) {
       if (miVector.createIndMI)
          miVector.miTypes|=CMPI_MIType_Indication;
       specificMode=1;
    }

    if (miVector.miTypes==0) {
        _library.unload();
	throw Exception(MessageLoaderParms("ProviderManager.CMPI.CMPIProviderModule.WRONG_LIBRARY",
            "ProviderLoadFailure: ($0) Provider is not a CMPI style provider. Cannot find $1_Create<mi-type>MI symbol.",
	    _library.getFileName(),
	    realProviderName));
    }

    if (miVector.genericMode && specificMode) {
        _library.unload();
        throw Exception(MessageLoaderParms("ProviderManager.CMPI.CMPIProviderModule.CONFLICTING_CMPI_STYLE",
		"ProviderLoadFailure: ($0:$1) conflicting generic/specfic CMPI style provider.",
		_library.getFileName(),
		realProviderName));
    }

    genericProviderModule=miVector.genericMode!=0;

    return miVector;
}

void CMPIProviderModule::unloadModule(void)
{
    _library.unload();
}

PEGASUS_NAMESPACE_END