Subj : Re: Acessing global object's method
To   : comp.programming.threads
From : David Schwartz
Date : Sat Feb 19 2005 06:42 pm


"Da Wang" <DaWangEE@THEgoogleMAIL.com> wrote in message 
news:IC6qJG.JML@campus-news-reading.utoronto.ca...
> Is it necessary to add mutex when I access a global object's method? I 
> only read some information from it but the method requires some 
> computation inside the object.

    Are we talking POSIX pthreads? If so, the answer is that mutexes don't 
lock functions, but they lock data. If the method requires reading data that 
might be written in another thread, then yes.

    DS

.