1 chip  1.1 //%/////////////////////////////////////////////////////////////////////////////
  2           //

  3 kumpf 1.11 // Copyright (c) 2000, 2001, 2002 BMC Software, Hewlett-Packard Company, IBM,
  4            // The Open Group, Tivoli Systems

  5 chip  1.1  //
  6            // Permission is hereby granted, free of charge, to any person obtaining a copy
  7            // of this software and associated documentation files (the "Software"), to
  8            // deal in the Software without restriction, including without limitation the
  9            // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 10            // sell copies of the Software, and to permit persons to whom the Software is
 11            // furnished to do so, subject to the following conditions:

 12 kumpf 1.11 // 

 13 chip  1.1  // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN
 14            // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED
 15            // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
 16            // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
 17            // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 18            // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 19            // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 20            // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 21            //
 22            //==============================================================================
 23            //
 24            // Author: Chip Vincent (cvincent@us.ibm.com)
 25            //
 26            // Modified By:

 27 chip  1.7  //      Nag Boranna, Hewlett-Packard Company(nagaraja_boranna@hp.com)

 28 kumpf 1.5  //		Yi Zhou, Hewlett-Packard Company(yi_zhou@hp.com)

 29 chip  1.1  //
 30            //%/////////////////////////////////////////////////////////////////////////////
 31            
 32            #include "ProviderModule.h"
 33            
 34            #include <Pegasus/Common/Destroyer.h>
 35            #include <Pegasus/Common/FileSystem.h>

 36 sage  1.8  #include <Pegasus/Provider/CIMInstanceProvider.h>

 37 chip  1.1  
 38            PEGASUS_NAMESPACE_BEGIN
 39            

 40 sage  1.8  ProviderModule::ProviderModule(const String & fileName,

 41 kumpf 1.10                                const Uint32 & refCount)
 42                : _fileName(fileName), _providerName(String::EMPTY),
 43                  _refCount(refCount), _interfaceName(String::EMPTY),
 44                  _library(0), _provider(0)
 45            {
 46            }
 47            
 48            ProviderModule::ProviderModule(const String & fileName,

 49 sage  1.8                                 const String & providerName)
 50                : _fileName(fileName), _providerName(providerName),
 51                  _library(0), _provider(0)

 52 chip  1.1  {
 53            }
 54            

 55 sage  1.8  ProviderModule::ProviderModule(const String & fileName,
 56                                           const String & providerName,

 57 kumpf 1.10                                const String & interfaceName,
 58            			       const Uint32 & refCount)

 59 sage  1.8      : _fileName(fileName), _providerName(providerName),
 60                  _interfaceName(interfaceName),

 61 kumpf 1.10       _refCount(refCount),

 62 sage  1.8        _library(0), _provider(0)
 63            {
 64                // currently without interface registration
 65                _interfaceFilename = String::EMPTY;
 66            
 67                if (_interfaceName.size() > 0)
 68                    if (!( String::equalNoCase(_interfaceName, "C++Standard") ||
 69                           String::equalNoCase(_interfaceName, "C++Default") ||
 70                           String::equalNoCase(_interfaceName, "PG_DefaultC++") ))
 71                    {
 72                        #ifdef PEGASUS_OS_TYPE_WINDOWS
 73                        _interfaceFilename = _interfaceName + String(".dll");
 74                        #elif defined(PEGASUS_OS_HPUX)
 75                        _interfaceFilename = ConfigManager::getHomedPath(
 76                            ConfigManager::getInstance()->getCurrentValue("providerDir"));

 77 kumpf 1.13             _interfaceFilename.append(
 78                            String("/lib") + _interfaceName + String(".sl"));

 79 chuck 1.15             #elif defined(PEGASUS_OS_OS400)
 80                        _interfaceFilename = _interfaceName;

 81 sage  1.8              #else
 82                        _interfaceFilename = ConfigManager::getHomedPath(
 83                            ConfigManager::getInstance()->getCurrentValue("providerDir"));

 84 kumpf 1.13             _interfaceFilename.append(
 85                            String("/lib") + _interfaceName + String(".so"));

 86 sage  1.8              #endif
 87                    }
 88            }
 89            

 90 kumpf 1.6  ProviderModule::ProviderModule(const ProviderModule & pm)
 91                : _fileName(pm._fileName),

 92 sage  1.8        _providerName(pm._providerName),
 93                  _interfaceName(pm._interfaceName),
 94                  _interfaceFilename(pm._interfaceFilename),
 95                  _library(pm._library),

 96 kumpf 1.10       _provider(pm._provider),
 97                  _refCount(pm._refCount)

 98 kumpf 1.6  {
 99            }
100            

101 chip  1.1  ProviderModule::~ProviderModule(void)
102            {
103            }
104            
105            void ProviderModule::load(void)
106            {

107 sage  1.8      // get the interface adapter library first

108 kumpf 1.17     _adapter = 0;

109 sage  1.8      if (_interfaceFilename.size() > 0)
110                {
111                    _adapter = ProviderAdapterManager::get_pamgr()->addAdapter(
112                                                      _interfaceName, _interfaceFilename,
113                                                      _providerName);
114            

115 kumpf 1.16         _provider = dynamic_cast<CIMProvider *>(_adapter);

116 sage  1.8  
117                    if (_provider == NULL)
118                    {

119 kumpf 1.16             String errorString = "ProviderAdapter is no CIMProvider";

120 sage  1.8              throw Exception("ProviderLoadFailure (" + _providerName + "):" +
121                            errorString);
122                    }
123            
124                    return;
125                }
126            

127 chip  1.1      // dynamically load the provider library

128 kumpf 1.14     _library = System::loadDynamicLibrary(_fileName.getCString());

129 chip  1.1  
130                if(_library == 0)
131                {

132 chip  1.7          // ATTN: does unload() need to be called?
133            
134                    String errorString = "Cannot load library, error: " + System::dynamicLoadError();
135                    throw Exception("ProviderLoadFailure (" + _fileName + ":" + _providerName + "):" + errorString);

136 chip  1.1      }
137            

138 kumpf 1.14     // find library entry point

139 kumpf 1.16     CIMProvider * (*createProvider)(const String &) = 0;

140 chip  1.1  

141 kumpf 1.16     createProvider = (CIMProvider * (*)(const String &))System::loadDynamicSymbol(

142 chip  1.7          _library, "PegasusCreateProvider");

143 chip  1.1  

144 chip  1.3      if(createProvider == 0)
145                {

146 chip  1.7          unload();

147 chip  1.1  

148 chip  1.7          String errorString = "entry point not found.";
149                    throw Exception("ProviderLoadFailure (" + _fileName + ":" + _providerName + "):" + errorString);

150 chip  1.3      }

151 chip  1.1  

152 chip  1.3      // invoke the provider entry point

153 kumpf 1.16     CIMProvider * provider = createProvider(_providerName);

154 chip  1.1  

155 chip  1.3      if(provider == 0)
156                {

157 chip  1.7          unload();

158 chip  1.1  

159 chip  1.7          String errorString = "entry point returned null.";
160                    throw Exception("ProviderLoadFailure (" + _fileName + ":" + _providerName + "):" + errorString);

161 chip  1.3      }

162 chip  1.1  

163 chip  1.3      // test for the appropriate interface

164 kumpf 1.16     if(dynamic_cast<CIMProvider *>(provider) == 0)

165 chip  1.3      {

166 chip  1.7          unload();

167 chip  1.1  

168 kumpf 1.16         String errorString = "provider is not a CIMProvider.";

169 chip  1.7          throw Exception("ProviderLoadFailure (" + _fileName + ":" + _providerName + "):" + errorString);

170 chip  1.3      }

171 chip  1.1  

172 chip  1.3      // save provider handle
173                _provider = provider;

174 chip  1.1  

175 chip  1.3      return;

176 chip  1.1  }
177            
178            void ProviderModule::unload(void)
179            {

180 sage  1.8      if(_adapter != 0)
181                {
182                    delete _adapter;
183            
184                    _adapter = 0;
185                }
186            

187 chip  1.7      /*
188                // ATTN: cannot determine if provider is stack or heap based allocated.

189 kumpf 1.16     // the provider should delete, if necessary, during CIMProvider::terminate()

190 sage  1.8  

191 chip  1.1      if(_provider != 0)
192                {

193 sage  1.8  	delete _provider;

194 chip  1.7          delete _provider;

195 kumpf 1.5  

196 sage  1.8  	_provider = 0;

197 chip  1.7          _provider = 0;

198 kumpf 1.5      }

199 chip  1.7      */

200 kumpf 1.5  

201 sage  1.8      if(_library != 0)
202                {
203            	System::unloadDynamicLibrary(_library);
204            
205            	_library = 0;
206                }
207            }
208            
209            void ProviderModule::unloadModule(void)
210            {

211 chip  1.1      if(_library != 0)
212                {

213 chip  1.7          System::unloadDynamicLibrary(_library);

214 chip  1.1  

215 chip  1.7          _library = 0;

216 chip  1.1      }
217            }
218            
219            PEGASUS_NAMESPACE_END