/*****************************************************************
|
| Neptune - Dynamic Libraries
|
| Copyright (c) 2002-2008, Axiomatic Systems, LLC.
| All rights reserved.
|
| Redistribution and use in source and binary forms, with or without
| modification, are permitted provided that the following conditions are met:
| * Redistributions of source code must retain the above copyright
| notice, this list of conditions and the following disclaimer.
| * Redistributions in binary form must reproduce the above copyright
| notice, this list of conditions and the following disclaimer in the
| documentation and/or other materials provided with the distribution.
| * Neither the name of Axiomatic Systems nor the
| names of its contributors may be used to endorse or promote products
| derived from this software without specific prior written permission.
|
| THIS SOFTWARE IS PROVIDED BY AXIOMATIC SYSTEMS ''AS IS'' AND ANY
| EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
| WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
| DISCLAIMED. IN NO EVENT SHALL AXIOMATIC SYSTEMS BE LIABLE FOR ANY
| DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
| (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
| LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
| ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
| (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
| SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
****************************************************************/
#ifndef _NPT_DYNAMIC_LIBRARIES_H_
#define _NPT_DYNAMIC_LIBRARIES_H_
/*----------------------------------------------------------------------
| includes
+---------------------------------------------------------------------*/
#include "NptTypes.h"
/*----------------------------------------------------------------------
| constants
+---------------------------------------------------------------------*/
#define NPT_DYANMIC_LIBRARY_LOAD_FLAG_NOW 1
/*----------------------------------------------------------------------
| NPT_DynamicLibraryInterface
+---------------------------------------------------------------------*/
class NPT_DynamicLibraryInterface
{
public:
virtual ~NPT_DynamicLibraryInterface() {}<--- Virtual destructor in base class
virtual NPT_Result FindSymbol(const char* name, void*& symbol) = 0;<--- Virtual function in base class
virtual NPT_Result Unload() = 0;<--- Virtual function in base class
};
/*----------------------------------------------------------------------
| NPT_DynamicLibrary
+---------------------------------------------------------------------*/
class NPT_DynamicLibrary : public NPT_DynamicLibraryInterface
{
public:
// class methods
static NPT_Result Load(const char* name, NPT_Flags flags, NPT_DynamicLibrary*& library);
// destructor
~NPT_DynamicLibrary() { delete m_Delegate; }<--- Class 'NPT_DynamicLibrary' does not have a copy constructor which is recommended since it has dynamic memory/resource management.<--- Class 'NPT_DynamicLibrary' does not have a operator= which is recommended since it has dynamic memory/resource management.<--- Destructor in derived class
// NPT_DynamicLibraryInterface methods
virtual NPT_Result FindSymbol(const char* name, void*& symbol) {<--- Function in derived class
return m_Delegate->FindSymbol(name, symbol);
}
virtual NPT_Result Unload() {<--- Function in derived class
return m_Delegate->Unload();
}
private:
// methods
NPT_DynamicLibrary(NPT_DynamicLibraryInterface* delegate) : m_Delegate(delegate) {}<--- Class 'NPT_DynamicLibrary' has a constructor with 1 argument that is not explicit. [+]Class 'NPT_DynamicLibrary' has a constructor with 1 argument that is not explicit. Such, so called "Converting constructors", should in general be explicit for type safety reasons as that prevents unintended implicit conversions.
// members
NPT_DynamicLibraryInterface* m_Delegate;
};
#endif // _NPT_DYNAMIC_LIBRARIES_H_