Re: [Dev-C++] threads issue...

[Raghunath Marella.S <ms...@ya...>]

Thanks Abhijit. 

Is there any function call like join() of java, in
C++.

regards,
Raghunath

--- Abhijit Shylanath <mu...@gm...> wrote:
> You're not giving enough time for the threads to
> start. As soon as you
> create them, the main() process ends, so the threads
> are destroyed. Put a
> delay, either using a Sleep() or MessageBox()
> function, as show below. Try
> clicking the OK button in the 'waiting' message-box
> to see what happens to
> the threads, they're stopped without being
> completed. The new code is here:
> 
> #include <iostream.h>
> #include <stdlib.h>
> #include <windows.h>
> #include <conio_mingw.h>
> 
> DWORD WINAPI ThreadProc(LPVOID );
> 
> int main()
> {
>   for(int i = 0;i<3;i++)
>   {
>     DWORD threadId;
>     HANDLE hThread;
> 
>     hThread =
> CreateThread(NULL,0,ThreadProc,&i,0,&threadId);
>     if(hThread == NULL)
>       cout << "\n Thread has not been created";
>     else
>     {
>       //_getch();
>       cout << "\n Thread has been created
> successfully.";
>     }
>   }
>   MessageBox(NULL, "Click to close.", "Waiting",
> MB_OK);
>   return 0;
> }
> 
> DWORD WINAPI ThreadProc( LPVOID lpParam )
> {
>   cout << "\n Entered threadProc...";
>   MessageBox(NULL,"sample output","",MB_OK);
> 
>   for(int i = 0;i<10;i++)
>   {
>     cout << "\n thread output is:"<<HIWORD(lpParam)
> << ".."<<i;
>   }
> 
>   return 0;
> }
> 
> PS: Note that using void main() is WRONG!!! It
> should be int main(), and int
> only. It may run on some platforms, but it won't run
> on all. Also, in MingW,
> you have to use conio_mingw.h, but this is very
> platform and compiler
> specific.
> 
> 
>
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