2013/5/31 Nala Ginrut <nalaginrut@gmail.com>

> On Fri, 2013-05-31 at 14:24 +0800, Xin Wang wrote:
>
> >
> >
> > Thank you for pointing out this.
> >
> >
> > After some more search, I found that pthread has function pthread_kill
> > [1], which can be used to send signal to specific thread.
> >
> >
> > No sure if it can be used to implement similar behaviour.
> >
> >
> > [1]
> >
> http://pubs.opengroup.org/onlinepubs/9699919799/functions/pthread_kill.html
>
>
> At least in Linux, pthread_kill may effect the whole process:
> ----------------------------cut----------------------------------
> Signal  dispositions  are  process-wide: if a signal handler is
> installed, the handler will be invoked in the thread thread,
> but if the disposition of the signal is "stop", "continue", or
> "terminate", this action will affect the whole process.
> ----------------------------end----------------------------------
>
> The real solution for your purpose is green-thread IMO.
>
>
I see.

But I think it is still doable, although not elegant.

We can establish a signal handler to exit specific thread instead of a
global terminate disposition, and then in thread pthread_sigmask() can be
used to block that signal temporarily, before calling out-guard part of
dynamic-wind.

Some sample C code: https://gist.github.com/dram/5683646



> >
> >
> >         > Regards,
> >         > Xin Wang
> >
> >
> >
> >
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