///////////////////////////////////////////////////////////////////////
//  DemoInterface.cpp - Demonstrate Creation and proper use of       //
//                      Dynamic Link Libraries (DLLs)                //
//                                                                   //
//  Language:    Visual C++, ver 7.0                                 //
//  Platform:    Dell Dimension 8100, Windows 2000, SP 2.0           //
//  Application: Demonstration for CSE775 - Distributed Objects      //
//  Author:      Jim Fawcett, CST 2-187, Syracuse University         //
//               (315) 443-3948, jfawcett@twcny.rr.com               //
///////////////////////////////////////////////////////////////////////

#include "stdafx.h"
#include "DemoInterface.h"

BOOL APIENTRY DllMain( HANDLE hModule, 
                       DWORD  ul_reason_for_call, 
                       LPVOID lpReserved
                     )
{
  switch (ul_reason_for_call)
  {
  case DLL_PROCESS_ATTACH:
  case DLL_THREAD_ATTACH:
  case DLL_THREAD_DETACH:
  case DLL_PROCESS_DETACH:
    break;
  }
    return TRUE;
}

DEMOINTERFACE_API CDemoInterface* CDemoInterface::CreateDemoDll()
{
  return new CDemoDll();
}

CDemoDll::CDemoDll(void) : _changed(false)
{
  ::GetCurrentDirectory(_PATHSIZE,_curPath);
  return; 
}

void CDemoDll::setDir(const char *path)
{
  if(!_changed)
  {
    ::GetCurrentDirectory(_PATHSIZE,_oldPath);
    _changed = true;
  }
  ::SetCurrentDirectory(path);
  ::GetCurrentDirectory(_PATHSIZE,_curPath);
}

const char* CDemoDll::getDir()
{
  return _curPath;
}

void CDemoDll::restore()
{
  strncpy(_curPath,_oldPath,_PATHSIZE);
  ::SetCurrentDirectory(_oldPath);
}

bool CDemoDll::changed()
{
  return _changed;
}

DEMOINTERFACE_API void SetDir(const char *path)
{
  ::SetCurrentDirectory(path);
}

DEMOINTERFACE_API const char* GetDir()
{
  static char path[CDemoDll::_PATHSIZE];
  ::GetCurrentDirectory(CDemoDll::_PATHSIZE,path);
  return path;
}