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#ifndef ANONYPIPEUNIT_H
#define ANONYPIPEUNIT_H

#include <windows.h>
#include <Classes.hpp>
//---------------------------------------------------------------------------
class CAnonyPipe
{
public:
       enum CPipeDirect{pdRead=0,pdWrite=1};
       static DWORD   sAnonyPipeSize;
private:
       CPipeDirect    hPipeDirect;
       bool           bSuccessed;
public:
       HANDLE         hPipeHandle;
public:
       CAnonyPipe(CPipeDirect pPipeDirect)
       {
           hPipeDirect = pPipeDirect;

           SECURITY_ATTRIBUTES sa;
           ZeroMemory(&sa, sizeof(SECURITY_ATTRIBUTES));
           sa.nLength = sizeof(SECURITY_ATTRIBUTES);
           sa.bInheritHandle = true;
           sa.lpSecurityDescriptor = NULL;

           HANDLE hTempHandle;
           if (hPipeDirect==pdRead)
               bSuccessed = CreatePipe(&hPipeHandle, &hTempHandle, &sa, 0);
           else
               bSuccessed = CreatePipe(&hTempHandle, &hPipeHandle, &sa, 0);
           CloseHandle(hTempHandle);
       }

       ~CAnonyPipe()
       {
           if (hPipeHandle)
               ClosePipe();
       }

       void ClosePipe()
       {
           if (bSuccessed)
              CloseHandle(hPipeHandle);
           hPipeHandle = NULL;
       }

       bool Checked()
       {
           return bSuccessed;
       }

       bool Read(LPVOID pBuffer, LPDWORD lpNumberOfBytesRead)
       {
           if (hPipeDirect==pdRead)
           {
               ZeroMemory(pBuffer, sAnonyPipeSize);
               if (!ReadFile(hPipeHandle, pBuffer, sAnonyPipeSize, lpNumberOfBytesRead, NULL))
                   return false;
               return true;
           }
           return false;
       }

       bool Write(LPCVOID pBuffer, LPDWORD lpNumberOfBytesWrite)
       {     
           if (hPipeDirect==pdWrite)
           {
               if (!WriteFile(hPipeHandle, pBuffer, sAnonyPipeSize, lpNumberOfBytesWrite, NULL))
                   return false;
               return true;
           }
           return false;
       }
};

DWORD CAnonyPipe::sAnonyPipeSize = 1024;
//---------------------------------------------------------------------------
#endif