in reply to Re: sending signal to self with kill on windows (updated);
in thread sending signal to self with kill on windows
> I think this demonstrates that the Perl Windows sig emulation has code to prevent a process from attempting to signal itself:
Definitely! I had this at one of my projects...
My face and all my hairs went pale, when I realized that a young colleague of mine called warn within $SIG{__WARN__}-handler.
As it turned out Perl was (since 5.8 IIRC) idiot proof. It locally resets signal handler redirections before calling them.
My colleague insisted that I exaggerated, because she "tested" (i.e ran) it once before committing into production.
Her warn did depend on an if clause and "production" meant a central module of a mod-perl environment...
Cheers Rolf
UPDATE:
from warn
Most handlers must therefore make arrangements to actually display the warnings that they are not prepare +d to deal with, by calling "warn" again in the handler. Not +e that this is quite safe and will not produce an endless loop +, since "__WARN__" hooks are not called from inside one.
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