Subj : Re: pthread function behavior in C++ program
To   : comp.programming.threads
From : Marcin 'Qrczak' Kowalczyk
Date : Mon Jun 13 2005 01:56 am

"Peter Dimov" <pdimov@gmail.com> writes:

> Hallucinations aside, is his position - that a canceled thread must
> remain canceled - reasonable (as long as it's done the right way)?

IMHO it's not. I don't see any reason to insist that it must be
irreversible.

My language Kogut supports exceptions (which work as in most languages)
and signals (sent to a thread from another thread; causes interruption
of what the thread is currently doing and execution of a handler which
may continue or throw an exception; may be temporarily blocked).

An unhandled signal is by default rethrown as an exception. Thread
cancellation is just a signal.

A thread can delay or ignore a request for termination, and I don't
see anything wrong with it. You can't protect against abusive threads
anyway.

-- 
   __("<         Marcin Kowalczyk
   \__/       qrczak@knm.org.pl
    ^^     http://qrnik.knm.org.pl/~qrczak/

.