Subj : Re: Return value from worker thred when the working thread must be suspend after calculation???
To   : comp.os.ms-windows.programmer.win32,microsoft.public.vc.language,comp.programming.threads
From : David Schwartz
Date : Mon Aug 29 2005 05:26 pm


<pattreeya@gmail.com> wrote in message 
news:1125357370.543175.203810@g43g2000cwa.googlegroups.com...

>  it will be a very kind of you if someone can help me with the
> following problem.

>   After finish calling "Calculate" function, I would like
> to send the result to the main thread and suspend the working thread.
> how can i get the the return value from this threadproc to be used by
> the main thread?

    You should have some structure that represents the calculation and the 
thread should put the result in that structure.

> DWORD WINAPI CalcThreadProc(void * param)
> {
> ST_CALC* st_calc =(ST_CALC *)(param);

    Well, you already do that, you have an 'ST_CALC' structure.

> while(1){
>    if( ::WaitForSingleObject(evShouldStop, 0) == WAIT_OBJECT_0)
>         break;
>
> int ret = Calculate(false, st_calc->start, st_calc->end);
>
> ::SuspendThread(hRtCalcThrd);
>      //??? How can I get return value, "ret", to be use by the calling
> thread?  Should I call put the SuspendThread outside this func after
> get the return value?

    Put the result in a slot in the ST_CALC structure.

    DS

.