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Re: signals on windows

From: "Merlin Moncure" <merlin(dot)moncure(at)rcsonline(dot)com>
To: "Marsh Ray" <marsh-pg(at)mysteray(dot)com>
Cc: "pgsql-hackers-win32" <pgsql-hackers-win32(at)postgresql(dot)org>
Subject: Re: signals on windows
Date: 2003-10-10 17:08:46
Message-ID: 303E00EBDD07B943924382E153890E5434A9ED@cuthbert.rcsinc.local (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers-win32
>It doesn't look like a "signal" is not a kernel primitive on NT, it's a

>feature of the CRT implemented in userspace with lower-level OS

That is correct.  Signals in the Unix sense of the word do not exist in
win32.  A subset of them was emulated by the C runtime for compatibility
with dos applications.  All real win32 process messaging goes through

Exception handling, however, is a kernel primitive, and handles some
cases like int/0 that normally would be handled by signals.  Microsoft
hacked the C language to include exception support for this reason.



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Subject: Re: signals on windows
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