root/FalconView/trunk/public/fvw_core/GeodataDataSources/KMLDataLoader.h @ 2309

// KMLDataLoader.h
//

#pragma once

class CKMLResource;

#define NUM_DATA_LOADING_THREADS 4

class CKMLDataLoader
{
   static CKMLDataLoader* m_pInstance;

   CKMLDataLoader();
   ~CKMLDataLoader();

   HANDLE m_hRequestQueueSemaphore;
   CRITICAL_SECTION m_RequestQueueCs;
   HANDLE m_hThread[NUM_DATA_LOADING_THREADS];
   UINT m_uThreadId;
   HANDLE m_TerminateThreadEvent;
   HANDLE m_hThreadTerminatedEvent;

   static unsigned int __stdcall KMLResourceLoadThread(void *pParam);
   unsigned int Run();

   std::queue<CKMLResource* > m_requestQueue;

public:
   static CKMLDataLoader* GetInstance()
   {
      if (m_pInstance == NULL)
      {
         m_pInstance = new CKMLDataLoader();
         m_pInstance->Initialize();
      }

      return m_pInstance;
   }
   static void DestroyInstance()
   {
      delete m_pInstance;
      m_pInstance = NULL;
   }

   void Initialize();
   void AddLoadRequest(IFvDataSourceCallback* pDataSourceCallback, CKMLResource* pResource);
};