Subj : Re: how to return from pthread
To   : comp.programming.threads
From : ptjm
Date : Wed Jul 06 2005 05:03 am

In article <42cad89e$0$773$3a628fcd@reader20.nntp.hccnet.nl>,
Huub  <hdotvdotniekerkathccnetdotnl> wrote:

% I have a program, containing multiple sourcefiles. From 1 sourcefile, I 
% call 4 others, of which only the 1st has a thread. Now it appears, that 
% after successfully running the thread, program won't return to do the 
% next. It just ends after the thread. The thread is started with 'rc = 
% pthread_create(...)', next instruction is 'pthread_exit(NULL)'.

Can you give a clearer picture of what you're doing? Is it this:

 pthread_t tid;

 pthread_create(&tid, NULL, tf, NULL);
 pthread_exit(NULL);

 ntf();
 ntf2();

?

What this does is start a thread to execute tf(), then return from
the original thread. I expect what you want to do is wait for that
background thread to finish like this:

 pthread_create(&tid, NULL, tf, NULL);
 pthread_join(tid, NULL);

 ntf();
 ntf2();

If so, then why use pthread_create() at all? Why not

 tf(NULL);
 ntf();
 ntf2();

?
-- 

Patrick TJ McPhee
North York  Canada
ptjm@interlog.com

.