C / C++ / MFC

DCB dcb;
   HANDLE hCom;
   BOOL fSuccess;
   TCHAR *pcCommPort = TEXT("COM3");
   DWORD dwBytesWritten = 0;
   hCom = CreateFile( pcCommPort,
                    GENERIC_READ | GENERIC_WRITE,
                    0,    // must be opened with exclusive-access
                    NULL, // default security attributes
                    OPEN_EXISTING, // must use OPEN_EXISTING
                    0,    // not overlapped I/O
                    NULL  // hTemplate must be NULL for comm devices
                    );

   if (hCom == INVALID_HANDLE_VALUE) 
   {
       // Handle the error.
       printf ("CreateFile failed with error %d.\n", GetLastError());
       return (1);
   }

   // Build on the current configuration, and skip setting the size
   // of the input and output buffers with SetupComm.

  // SecureZeroMemory(&dcb, sizeof(DCB));
   dcb.DCBlength = sizeof(DCB);
   fSuccess = GetCommState(hCom, &dcb);

   if (!fSuccess) 
   {
      // Handle the error.
      printf ("GetCommState failed with error %d.\n", GetLastError());
      return (2);
   }

   // Fill in DCB: 57,600 bps, 8 data bits, no parity, and 1 stop bit.

	dcb.BaudRate = CBR_57600;     // set the baud rate
	dcb.ByteSize = 8;             // data size, xmit, and rcv
	dcb.Parity = NOPARITY;        // no parity bit
    dcb.StopBits = ONESTOPBIT;    // one stop bit

   fSuccess = SetCommState(hCom, &dcb);

   if (!fSuccess) 
   {
      // Handle the error.
      printf ("SetCommState failed with error %d.\n", GetLastError());
      return (3);
   }

   _tprintf (TEXT("Serial port %s successfully reconfigured.\n"),pcCommPort);

DCB dcb;
   HANDLE hCom;
   BOOL fSuccess;
   TCHAR *pcCommPort = TEXT("COM3");
   DWORD dwBytesWritten = 0;
   hCom = CreateFile( pcCommPort,
                    GENERIC_READ | GENERIC_WRITE,
                    0,    // must be opened with exclusive-access
                    NULL, // default security attributes
                    OPEN_EXISTING, // must use OPEN_EXISTING
                    0,    // not overlapped I/O
                    NULL  // hTemplate must be NULL for comm devices
                    );

   if (hCom == INVALID_HANDLE_VALUE) 
   {
       // Handle the error.
       printf ("CreateFile failed with error %d.\n", GetLastError());
       return (1);
   }

   // Build on the current configuration, and skip setting the size
   // of the input and output buffers with SetupComm.

  // SecureZeroMemory(&dcb, sizeof(DCB));
   dcb.DCBlength = sizeof(DCB);
   fSuccess = GetCommState(hCom, &dcb);

   if (!fSuccess) 
   {
      // Handle the error.
      printf ("GetCommState failed with error %d.\n", GetLastError());
      return (2);
   }

   // Fill in DCB: 57,600 bps, 8 data bits, no parity, and 1 stop bit.

	dcb.BaudRate = CBR_57600;     // set the baud rate
	dcb.ByteSize = 8;             // data size, xmit, and rcv
	dcb.Parity = NOPARITY;        // no parity bit
    dcb.StopBits = ONESTOPBIT;    // one stop bit

   fSuccess = SetCommState(hCom, &dcb);

   if (!fSuccess) 
   {
      // Handle the error.
      printf ("SetCommState failed with error %d.\n", GetLastError());
      return (3);
   }

   _tprintf (TEXT("Serial port %s successfully reconfigured.\n"),pcCommPort);

monsieur_jj wrote:

HANDLE Array_Of_Thread_Handles[3]; // Aray to store thread handles

Handle_Of_Thread_1 = CreateThread( NULL, 0, Thread_no_1, ((void*)prd), 0, NULL);
if ( Handle_Of_Thread_1 == NULL) ExitProcess(Data_Of_Thread_1);

// Store Thread handles in Array of Thread Handles as per the requirement of WaitForMultipleObjects()
Array_Of_Thread_Handles[0] = Handle_Of_Thread_1;

monsieur_jj wrote:

// Wait until all threads have terminated.
WaitForMultipleObjects( 3, Array_Of_Thread_Handles, TRUE, INFINITE);

monsieur_jj wrote:

Now what I would like to know is that while the first thread is downloading the first update will it go to the next update and download it?

HANDLE Array_Of_Thread_Handles[3]; // Aray to store thread handles
Handle_Of_Thread_1 = CreateThread( NULL, 0, Thread_no_1, ((void*)prd), 0, NULL);
if ( Handle_Of_Thread_1 == NULL) ExitProcess(Data_Of_Thread_1);

// Store Thread handles in Array of Thread Handles as per the requirement of WaitForMultipleObjects()
Array_Of_Thread_Handles[0] = Handle_Of_Thread_1;

// Wait until all threads have terminated.
WaitForMultipleObjects( 1, Array_Of_Thread_Handles, TRUE, INFINITE);

if (isUpdateTime())
{
RMproduct* MPoint = new RMproduct(L"ManagePoint",ManagepointService, ManagepointVersion);
				if (isPrdInstalled(MPoint))
				{
					GetVersion(MPoint);
					MPoint->m_SiteCode = m_CSiteCode.GetMPSiteCode(MPoint->m_SerialNo.c_str());
					dloadAvailable = DoCheckForProductUpdates(MPoint);
					if(dloadAvailable)
					{
					GetUpdate(MPoint);
					}
				}
				delete MPoint;
RMproduct* MPoint2 = new RMproduct(L"ManagePoint",ManagepointService, ManagepointVersion);
				if (isPrdInstalled(MPoint2))
				{
					GetVersion(MPoint2);
					MPoint2->m_SiteCode = m_CSiteCode.GetMPSiteCode(MPoint2->m_SerialNo.c_str());
					dloadAvailable = DoCheckForProductUpdates(MPoint2);
					if(dloadAvailable)
					{
					GetUpdate(MPoint)2;
					}
				}
				delete MPoint;
RMproduct* MPoint3 = new RMproduct(L"ManagePoint",ManagepointService, ManagepointVersion);
				if (isPrdInstalled(MPoint))
				{
					GetVersion(MPoint3);
					MPoint3->m_SiteCode = m_CSiteCode.GetMPSiteCode(MPoint3->m_SerialNo.c_str());
					dloadAvailable = DoCheckForProductUpdates(MPoint3);
					if(dloadAvailable)
					{
					GetUpdate(MPoint3);
					}
				}
				delete MPoint3;
}
<pre>

The GetUpdate function calls the function DownloadFile(): 
<pre>
bool CUpdateServiceModule::DownloadFile(RMUpdates* prd)
{
	bool result = false;


	int Data_Of_Thread_1 = 1;            // Data of Thread 1
	HANDLE Handle_Of_Thread_1 = 0;       // variable to hold handle of Thread 1
	HANDLE Array_Of_Thread_Handles[1];   // Aray to store thread handles

	Handle_Of_Thread_1 = CreateThread( NULL, 0, Thread_no_1, ((void*)prd), 0, NULL);  
				if ( Handle_Of_Thread_1 == NULL)  ExitProcess(Data_Of_Thread_1);


	Array_Of_Thread_Handles[0] = Handle_Of_Thread_1;

	// Wait until all threads have terminated.
	WaitForMultipleObjects( 1, Array_Of_Thread_Handles, TRUE, INFINITE);

    CloseHandle(Handle_Of_Thread_1);

	//DownloadThread((void*)prd);
	Sleep( 100 );
	return result;
}

hariakuthota wrote:

...and failing in the middle...

----- Resource.h ---------
#ifndef resource_h
 #define resource_h

 #define use_manifest  

#endif


----- Resource.rc --------
#include <windows.h>
#include "resource.h"
#ifdef use_manifest
 // Manifest resources
 //
 LANGUAGE LANG_ENGLISH, SUBLANG_DEFAULT
 1                  RT_MANIFEST    ".\\manifest.xml"
#endif