Re: Not running properly..........

[David Sugar]

The destructor calls a join from delete.  However, the threads are set by 
default as cancellable, and hence will cancel in exit().  You could add a 
"setCancel()" method to your thread's initial handler to specify different 
behavior.

Srinivasa T.N. wrote:

> Is there not a method like pthread_join??  (so that my main thread can 
> wait until other threads exit...)
>
> Regards,
> Seenu.
>
> David Sugar wrote:
>
>     Your main thread exits before all your subthread's get a chance to 
>     execute.
>     The exit joins threads since it deletes allocated objects thru the
>     destructors.  If you add a Sleep() before exiting main the other 
>     threads will
>     have a chance to run and delete themselves.
>     
>     Srinivasa T.N. wrote:
>     
>      > Hi,
>      >     Can anybody tell me why this program is not running properly.
>      >
>      > (see attachment for the program).
>      >
>      > The o/p is
>      >
>      > Before Thread1 start
>      > Before Thread2 start
>      > Thread1 Initial()
>      > Run() of thread1
>      >
>      >
>      > Regards,
>      > Seenu.
>      >
>      > Note: I am using Common C++ 1.3.2, egcs -2.91.66, and Redhat 6.2 
>     on a
>      > i686 m/c (Kernel 2.2.14)
>      >
>      > --
>      > 
>     ----------------------------------------------------------------------------- 
>     
>      > If not here, you can reach me at address@hidden
>      >
>      > C-DOT, 71/1, Sneha Complex, Miller Road, Bangalore - 560 052
>      > Ph: 226 3399 Ext: 268  Direct: 238 3951 (Off)
>      >     363 1707 (Resi)
>      >
>      >
>      >
>      >
>      > 
>     ------------------------------------------------------------------------ 
>     
>      >
>      > #include <cc++/config.h>
>      > #include <cc++/macros.h>
>      > #include <cc++/thread.h>
>      > #include <cc++/socket.h>
>      > #include <stdlib.h>
>      > #include <stdio.h>
>      >
>      > class Thread1 : public Thread
>      > {
>      > private:
>      >       void Initial()
>      >               { cout << "Thread1 Initial() " << endl;}
>      >       void Run();
>      >       void Final()
>      >               { delete this;};
>      > };
>      >
>      > class Thread2 : public Thread
>      > {
>      > private:
>      >       void Initial()
>      >               { cout << "Thread2 Initial() " << endl;}
>      >       void Run();
>      >       void Final()
>      >               { delete this;};
>      >
>      > };
>      >
>      > int main()
>      > {
>      >       Thread1 *thread1 = new Thread1;
>      >       Thread2 *thread2 = new Thread2;
>      >
>      >       cout << "Before Thread1 start " << endl;
>      >       thread1->Start();
>      >       cout << "Before Thread2 start " << endl;
>      >       thread2->Start();
>      > }
>      >
>      > void Thread1::Run(void)
>      > {
>      >       cout << "Run() of thread1"  << endl;
>      > }
>      >
>      > void Thread2::Run(void)
>      > {
>      >       cout << "Run() of thread2"  << endl;
>      > }
>      > bug1.cpp
>      >
>      > Content-Type:
>      >
>      > text/plain
>      > Content-Encoding:
>      >
>      > 7bit
>     
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> --
> -----------------------------------------------------------------------------
> If not here, you can reach me at address@hidden
>
> C-DOT, 71/1, Sneha Complex, Miller Road, Bangalore - 560 052
> Ph: 226 3399 Ext: 268  Direct: 238 3951 (Off)
>     363 1707 (Resi)
>