Added a bunch of files synched with 0.8.42

src/osgDB/DynamicLibrary.cpp

@@ -0,0 +1,69 @@
+#ifdef WIN32
+#include <Io.h>
+#include <Windows.h>
+#include <Winbase.h>
+#elif !defined(macintosh)
+#include <unistd.h>
+#include <dlfcn.h>
+#endif
+
+#ifndef OSG_USE_IO_DOT_H
+#include <iostream>
+using namespace std;
+#endif
+
+#include "osg/Notify"
+
+#include "osgDB/DynamicLibrary"
+#include "osgDB/FileUtils"
+
+using namespace osg;
+using namespace osgDB;
+
+DynamicLibrary::DynamicLibrary(const std::string& name,HANDLE handle)
+{
+    _name = name;
+    _handle = handle;
+}
+
+DynamicLibrary::~DynamicLibrary()
+{
+    if (_handle)
+    {
+#ifdef WIN32
+        FreeLibrary((HMODULE)_handle);
+#elif !defined(macintosh)
+        dlclose(_handle);
+#endif    
+    }
+}
+
+DynamicLibrary* DynamicLibrary::loadLibrary(const std::string& libraryName)
+{
+
+    char* fullLibraryName = osgDB::findDSO( libraryName.c_str() );
+    if (fullLibraryName==NULL) return NULL;
+
+#ifdef WIN32
+    HANDLE handle = LoadLibrary( fullLibraryName );
+    if (handle) return new DynamicLibrary(libraryName,handle);
+    notify(WARN) << "DynamicLibrary::failed loading "<<fullLibraryName<<endl;
+#elif !defined(macintosh)
+    HANDLE handle = dlopen( fullLibraryName, RTLD_LAZY );
+    if (handle) return new DynamicLibrary(libraryName,handle);
+    notify(WARN) << "DynamicLibrary::failed loading "<<fullLibraryName<<endl;
+    notify(WARN) << "DynamicLibrary::error "<<dlerror()<<endl;
+#endif
+    return NULL;
+}
+
+DynamicLibrary::PROC_ADDRESS DynamicLibrary::getProcAddress(const std::string& procName)
+{
+    if (_handle==NULL) return NULL;
+#ifdef WIN32
+    return GetProcAddress( (HMODULE)_handle,  procName.c_str() );
+#elif !defined(macintosh)
+    return dlsym( _handle,  procName.c_str() );
+#endif
+    return NULL;
+}