--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/javacommons/utils/src/dynamiclibloader.cpp	Tue Apr 27 16:30:29 2010 +0300
@@ -0,0 +1,114 @@
+/*
+* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  DynamicLibLoader
+*
+*/
+
+
+#include <memory>
+
+#include "logger.h"
+#include "javaoslayer.h"
+#include "libraryloaderexception.h"
+#include "dynamiclibloader.h"
+
+using namespace java::util;
+
+OS_EXPORT DynamicLibLoader::DynamicLibLoader(const char* libName) :
+        mHandle(0), mCloseOnDestroy(true)
+{
+    JELOG2(EUtils);
+    JavaOsLayer::getOsSpecificLibName(mLibName, libName);
+}
+
+OS_EXPORT DynamicLibLoader::DynamicLibLoader(const char* libName,
+        bool closeWhenDestructed) :
+        mHandle(0), mCloseOnDestroy(closeWhenDestructed)
+{
+    JELOG2(EUtils);
+    JavaOsLayer::getOsSpecificLibName(mLibName, libName);
+}
+
+OS_EXPORT DynamicLibLoader::~DynamicLibLoader()
+{
+    JELOG2(EUtils);
+    if (mCloseOnDestroy)
+    {
+        closeLib();
+    }
+}
+
+OS_EXPORT void DynamicLibLoader::openLib()
+{
+    if (mHandle == 0)
+    {
+        LOG1(EUtils, EInfo, "Opening lib %s", mLibName.c_str());
+        mHandle = JavaOsLayer::dlopen(mLibName.c_str());
+        if (mHandle == 0)
+        {
+            std::string errorStr("Error opening lib.");
+            errorStr.append(mLibName);
+            throw LibraryLoaderException(OPENING_LIBRARY_FAILED,errorStr,
+                                         __FILE__, __FUNCTION__, __LINE__);
+        }
+    }
+}
+
+OS_EXPORT void DynamicLibLoader::closeLib()
+{
+    if (mHandle)
+    {
+        LOG1(EUtils, EInfo, "Closing lib %s", mLibName.c_str());
+        JavaOsLayer::dlclose(mHandle);
+        mHandle = 0;
+    }
+}
+
+OS_EXPORT void* DynamicLibLoader::getFunction(const char* functionName,
+        bool containsByteCode)
+{
+    JELOG2(EUtils);
+    LOG1(EUtils, EInfo, "Getting function %s", functionName);
+    openLib(); //Ensure that the library has been opened.
+    void* func = JavaOsLayer::dlsym(mHandle, functionName, containsByteCode);
+    if (func == 0)
+    {
+        std::string errorStr("Error getting function ");
+        errorStr.append(functionName);
+        errorStr.append(" from library ");
+        errorStr.append(mLibName);
+        throw LibraryLoaderException(CANNOT_FIND_FUNCTION_FAILURE,errorStr,
+                                     __FILE__, __FUNCTION__, __LINE__);
+    }
+    return func;
+}
+
+OS_EXPORT DynamicLibLoader*
+DynamicLibLoader::loadAndGetFunction(void*&      functionPtr,
+                                     const char* libName,
+                                     const char* functionName)
+{
+    JELOG2(EUtils);
+
+    std::auto_ptr<DynamicLibLoader> libLoader(
+        new DynamicLibLoader(libName));
+
+    //Throws exception if fails
+    functionPtr = (libLoader->getFunction(functionName));
+
+    //everything went ok so we must not free the libLoader.
+    DynamicLibLoader* loader = libLoader.get();
+    libLoader.release();
+    return loader;
+}