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File: [Pegasus] / pegasus / src / Pegasus / ProviderManager / Attic / ProviderModule.cpp
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Revision: 1.17.2.3, Tue Feb 18 12:21:14 2003 UTC (21 years, 4 months ago) by mday Branch: mday-2-0-patches Changes since 1.17.2.2: +1 -3 lines removed debug cout |
//%///////////////////////////////////////////////////////////////////////////// // // Copyright (c) 2000, 2001, 2002 BMC Software, Hewlett-Packard Company, IBM, // The Open Group, Tivoli Systems // // 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: // Nag Boranna, Hewlett-Packard Company(nagaraja_boranna@hp.com) // Yi Zhou, Hewlett-Packard Company(yi_zhou@hp.com) // //%///////////////////////////////////////////////////////////////////////////// #include "ProviderModule.h" #include <Pegasus/Common/Destroyer.h> #include <Pegasus/Common/FileSystem.h> #include <Pegasus/Provider/CIMInstanceProvider.h> PEGASUS_NAMESPACE_BEGIN ProviderModule::ProviderModule(const String & fileName) : _fileName(fileName), _ref_count(0), _library(0) { _library = System::loadDynamicLibrary((const char *)_fileName.getCString()); } ProviderModule::~ProviderModule(void) { } CIMBaseProvider *ProviderModule::load(const String & providerName) { CIMBaseProvider *provider = 0; // dynamically load the provider library if(_library == 0) { _library = System::loadDynamicLibrary((const char *)_fileName.getCString()); } if(_library == 0) { // ATTN: does unload() need to be called? String errorString = "Cannot load library, error: " + System::dynamicLoadError(); throw Exception("ProviderLoadFailure (" + _fileName + ":" + providerName + "):" + errorString); } // find libray entry point CIMBaseProvider * (*createProvider)(const String &) = 0; createProvider = (CIMBaseProvider * (*)(const String &))System::loadDynamicSymbol( _library, "PegasusCreateProvider"); if(createProvider == 0) { String errorString = "entry point not found."; throw Exception("ProviderLoadFailure (" + _fileName + ":" + providerName + "):" + errorString); } // invoke the provider entry point provider = createProvider(providerName); if(provider == 0) { provider = new CIMDummyProvider(); } // test for the appropriate interface if(dynamic_cast<CIMBaseProvider *>(provider) == 0) { String errorString = "provider is not a CIMBaseProvider."; throw Exception("ProviderLoadFailure (" + _fileName + ":" + providerName + "):" + errorString); } _ref_count++; return provider; } void ProviderModule::unloadModule(void) { _ref_count--; if( _ref_count.value() > 0) return; _ref_count = 0; if(_library != 0) { System::unloadDynamicLibrary(_library); _library = 0; } } Boolean ProviderModule::operator == (const void *key) const { String *prov = reinterpret_cast<String *>(const_cast<void *>(key)); if(String::equalNoCase(_fileName, *prov)) return true; return false; } Boolean ProviderModule::operator == (const ProviderModule &pm) const { if(String::equalNoCase(_fileName, pm._fileName)) return true; return false; } PEGASUS_NAMESPACE_END
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