Subj : Re: I write a multithread program with pthread, and meet a program
To   : comp.programming.threads
From : Loic Domaigne
Date : Mon Apr 11 2005 02:00 am

Hello,

> I want to use pthread_cancel() to stop a thread, but it can not do
> correctly.
> Here is a sample:

[snip]

> When the new thread is running to the point 1 and the main thread call
> pthread_cancel() to stop it, the new pthread can not be stopped
> correctly.

Except the fact that you are not using correctly the condition variable 
(which should have a predicate associated to it), does commenting the 
following line help?

pthread_mutex_unlock(&mutex);
// cout<<"------------thread start"<<endl; // comment this line out!
while(true){
....


Regards,
Loic.

.