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Child thread becoming a parent

 
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Is it possible for a child thread to be a parent i.e. to spawn another thread? Or is it that the main thread is the only thread that can spawn a child thread?


main-------child------child // is this possible?
main
|-------child // or is this the only way
|-------child // to create a multiple
|-------child // child threads



I have this program that tries to do this.

1. The method m1() is suppose to create the thread B - a child of thread A
2. The join() method is there for A to wait until B completes.
But the result is not what I expect. B will complete but A will wait forever. So it seems that B is not a child of A.
[ July 03, 2003: Message edited by: Alton Hernandez ]
 
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I think the problem is that you are joining thread A to itself.
You need for the thread A to have a reference to the thread B and from within thread A's code do a join on the reference of thread B. When you do this.join() you are telling the running thread to wait until he has finished before he continues.
You can start a new thread from a child thread, it doesn't have to be from the main thread.
[ July 03, 2003: Message edited by: Damien Howard ]
 
Alton Hernandez
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You're right !
Thanks a lot Damien

[ July 03, 2003: Message edited by: Alton Hernandez ]
 
Consider Paul's rocket mass heater.
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