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From: | jra AT axon DOT cygnus DOT com (Jeremy Allison) |
Subject: | Re: ITIMER Implementation??? |
4 Dec 1996 12:33:30 -0800 : | |
Sender: | daemon AT cygnus DOT com |
Approved: | cygnus DOT gnu-win32 AT cygnus DOT com |
Distribution: | cygnus |
Message-ID: | <199612041954.LAA06070.cygnus.gnu-win32@cygnus.com> |
Original-To: | Alessandro Forin <sandrof AT microsoft DOT com> |
Original-cc: | "'Jeremy Allison'" <jra AT cygnus DOT com>, |
"'Colin Peters'" <colin AT bird DOT fu DOT is DOT saga-u DOT ac DOT jp>, | |
"'GNU-Win32'" <gnu-win32 AT cygnus DOT com> | |
In-reply-to: | Your message of "Wed, 04 Dec 1996 10:45:56 PST." |
<c=US%a=_%p=msft%l=RED-77-MSG-961204184556Z-68688 AT INET-04-IMC DOT itg DOT microsoft DOT com> | |
Original-Sender: | owner-gnu-win32 AT cygnus DOT com |
Alessandro, You make some very interesting points. The problem though is that Cygwin32 is meant to compile existing UNIX code. I know signals are a poor substitute for about 4 different things, my goal is for people not to have to change their code. Using threads for ITIMERS would only work if the original code wanted a timer facility that didn't interrupt I/O in progress. Without knowing what the original request was using ITIMERS for I have to code for the general case which is interrupting I/O with a signal when the timer fires. If they have to re-write they might as well just move to the Win32 api. The really interesting task would be to get a description of the 'real' NT API, not the Win32 overlay, I mean the one that executables flagged as 'NT Native' use. I believe that there may be calls in there that would enable a much better POSIX emulation (as this is the API that the NT POSIX subsystem is based on). However I doubt that Microsoft would be willing to document it for us (although I believe you have done so for the 'OpenNT' company in San Francisco). I would love for you to prove me wrong however :-). Cheers, Jeremy. jra AT cygnus DOT com - For help on using this list, send a message to "gnu-win32-request AT cygnus DOT com" with one line of text: "help".
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