UnitTests/cppunit/src/cppunit/DynamicLibraryManager.cpp

   1 #include <cppunit/plugin/DynamicLibraryManager.h>
   2
   3 #if !defined(CPPUNIT_NO_TESTPLUGIN)
   4 #include <cppunit/plugin/DynamicLibraryManagerException.h>
   5
   6 CPPUNIT_NS_BEGIN
   7
   8
   9 DynamicLibraryManager::DynamicLibraryManager( const std::string &libraryFileName )
  10     : m_libraryHandle( NULL )
  11     , m_libraryName( libraryFileName )
  12 {
  13   loadLibrary( libraryFileName );
  14 }
  15
  16
  17 DynamicLibraryManager::~DynamicLibraryManager()
  18 {
  19   releaseLibrary();
  20 }
  21
  22
  23 DynamicLibraryManager::Symbol
  24 DynamicLibraryManager::findSymbol( const std::string &symbol )
  25 {
  26   try
  27   {
  28     Symbol symbolPointer = doFindSymbol( symbol );
  29     if ( symbolPointer != NULL )
  30       return symbolPointer;
  31   }
  32   catch ( ... )
  33   {
  34   }
  35
  36   throw DynamicLibraryManagerException( m_libraryName,
  37                                         symbol,
  38                                         DynamicLibraryManagerException::symbolNotFound );
  39   return NULL;    // keep compiler happy
  40 }
  41
  42
  43 void
  44 DynamicLibraryManager::loadLibrary( const std::string &libraryName )
  45 {
  46   try
  47   {
  48     releaseLibrary();
  49     m_libraryHandle = doLoadLibrary( libraryName );
  50     if ( m_libraryHandle != NULL )
  51       return;
  52   }
  53   catch (...)
  54   {
  55   }
  56
  57   throw DynamicLibraryManagerException( m_libraryName,
  58                                         getLastErrorDetail(),
  59                                         DynamicLibraryManagerException::loadingFailed );
  60 }
  61
  62
  63 void
  64 DynamicLibraryManager::releaseLibrary()
  65 {
  66   if ( m_libraryHandle != NULL )
  67   {
  68     doReleaseLibrary();
  69     m_libraryHandle = NULL;
  70   }
  71 }
  72
  73
  74 CPPUNIT_NS_END
  75
  76
  77 #endif // !defined(CPPUNIT_NO_TESTPLUGIN)