Subj : Re: Windows Suspend/ResumeThread API equivalent for Linux or POSIX?
To   : comp.programming.threads
From : David Schwartz
Date : Wed May 11 2005 01:10 pm


"Chris Thomasson" <_no_damn_spam_cristom@_no_damn_comcast.net_spam> wrote in 
message news:DaednQpM4cnzPBzfRVn-pA@comcast.com...

>> Why do you think you need to suspend a thread?

> In order to call the Windows GetThreadContext Thread API, you need to use 
> the Resume/SuspendThread API. I am reading thread context and comparing 
> against deferred pointers in a modified SMR polling algorithm; You can 
> eliminate the hazard pointer reload and compare by doing this.

    Sounds like doing an awful lot of work to save a small amount of work. 
Suspending a thread without its cooperation is an incredibly expensive thing 
to do.

> I was wondering if Linux and/or POSIX has a way to get thread context and 
> if it was similar to the way windows does it. Something like:
>
> pthread_suspend_np( pthread_t, ucontext_t* );
> pthread_resume_np( pthread_t );

    No. What could you do while the thread was suspended? How can you be 
sure you don't trip over a lock the suspended thread holds?

    DS

.