cNetHostAsync.h

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//
//
 
#ifndef _INC_cNetHostAsync_H
#define _INC_cNetHostAsync_H
#ifndef NO_PRAGMA_ONCE
#pragma once
#endif
 
#include "cNetSystem.h"
 
#if defined(_WIN32) && ! defined(UNDER_CE)
#include "../WinAPI/WinTypes.h"
#include "GrayCore/include/cHeap.h"
#include "GrayCore/include/cOSHandleSet.h"
 
namespace GrayLib
{
        class cNetAddress;
 
        class GRAYLIB_LINK cNetHostAsync
        {
 
        protected:
                HANDLE m_hHostReq;              
        private:
                cHeapBlock m_HostData;  
        protected:
                hostent* GetAsyncSetup();
        public:
                cNetHostAsync()
                        : m_hHostReq(HANDLE_NULL)
                {
                }
                ~cNetHostAsync()
                {
                        AsyncCancel();
                }
 
                HANDLE get_HostReq() const
                {
                        return m_hHostReq;              // The handle to the request.
                }
 
                bool AsyncFindHostEntryByAddr(HWND hWnd, WINMSG_t uMsg, const cNetAddress& addr);
                bool AsyncFindHostEntryByName(HWND hWnd, WINMSG_t uMsg, const char* pszHostName);
 
                // When we get the complete notification message
                void AsyncComplete();
                bool AsyncComplete(cNetAddress* pAddr, LSTATUS wError, WORD wLen);
                void AsyncCancel();
 
                const hostent* GetHostEntry() const
                {
                        return (const hostent*)m_HostData.get_DataBytes();
                }
        };
};
#endif // _WIN32
#endif // _INC_cNetHostAsync_H