1 files changed, 70 insertions, 0 deletions
diff --git a/src/dynamic.cpp b/src/dynamic.cpp
new file mode 100644
index 000000000..e9cddcbbf
--- /dev/null
+++ b/src/dynamic.cpp
@@ -0,0 +1,70 @@
+#include "globals.h"
+#include <dlfcn.h>
+#include "dynamic.h"
+
+
+
+DLLManager::DLLManager( const char *fname )
+{
+    // Try to open the library now and get any error message.
+	
+	h=dlopen( fname, RTLD_NOW );
+	err=dlerror();
+}
+
+DLLManager::~DLLManager()
+{
+	// close the library if it isn't null
+	if( h!=0 )
+    	dlclose(h);
+}
+
+
+bool DLLManager::GetSymbol( 
+			   void **v,
+			   const char *sym_name
+			   )
+{
+	// try extract a symbol from the library
+	// get any error message is there is any
+	
+	if( h!=0 )
+	{
+		*v = dlsym( h, sym_name );
+    	err=dlerror();
+	    if( err==0 )
+       	  return true;
+    	else
+    	  return false;
+	}
+	else
+	{	
+        return false;
+	}
+	
+}
+
+
+DLLFactoryBase::DLLFactoryBase(
+			       const char *fname,
+			       const char *factory=0
+			       ) : DLLManager(fname)
+{
+	// try get the factory function if there is no error yet
+	
+	factory_func=0;
+	
+	if( LastError()==0 )
+	{		
+    	GetSymbol( (void **)&factory_func, factory ? factory : "init_module" );
+	}
+	
+}
+
+
+DLLFactoryBase::~DLLFactoryBase()
+{
+}
+
+
+