Re: stop a thread

From: hlh771 hlh771_at_[hidden])
Date: 2003-01-11 12:09:32

--- In Boost-Users_at_[hidden], William E. Kempf <wekempf_at_c...> 
wrote:
> > From: "hlh771 <hlh771_at_y...>" <hlh771_at_y...>
> > 
> > How to stop(or cancel) a thread? Suppose I have a main thread and 
a 
> > worker thread, the worker thread does something looply,and when 
the 
> > main thread get a message indicating the process should exit, I 
want 
> > stop the worker thread,how to do that?I have read other thread 
> > library,their thread class supply a method called stop or cancel 
> > which stops the thread. Their Implementation is:the thread class 
has 
> > a data member indicating whether the thread should stop,and the 
> > thread function looply check the data member whether the thread 
> > should stop.Generally the data member's type is a bool or Event.
> > Is it the best way to stop the thread? How the boost to deal with 
> > this?
> > Thanks in advance.
> 
> Today you should use a flag and a condition/mutex combination.  
Direct support for cancellation is being provided in a future release.
> 
> William E. Kempf
> wekempf_at_c...
Thanks a lot.
Can I only use a bool flag?Although more than one thread may access 
the flag and at least a thread write the flag, but it do not seems to 
cause problem, and I have used  this means in a one multithreading 
program(not use boost/threads),it runs good.