Howdy: I don't want to fill this message with all three modules of my code, so I'll try some general questions to see if I can get the help I need.
Okay, I'm basically building a Multiplexed Non-Blocking IO Telnet Server. Earlier today I was having bug trouble, so I threw in a few extra print statements to track it down. I did and it not "behaves" as expected. The weird part is, while proving this good behavior, my print statements would show an error here and there, so I've left them in and done quite a bit of playing, to see if I can figure out what's going on. Here's what I know. The first person can log in and do stuff just fine. Once there is a disconnect though. a "Bad File Descriptor" error shows up in the $! variable, which is printed right after my call to select() if it's filled. Now this "error" stays, until another person logs in, at which point it vanishes, to return when another user logs out. Rinse, repeat. The thing to stress again though, is that it IS working as I expect it to. Before, with the bug, I would see this error, but it wasn't working as expected then. I realize I could probably leave this alone, since my program is working, but if it's the root of a deeper problem I don't see or whatever, I want to know what's going on. Heck, even if it's trivial, I want to know. So, here's my main question. What's the best way to to track down the line that is setting the $! variable? I can't quite figure out the rules of this guy. Once it's set, what clears it? Its it localized to subroutines or packages or anything? I mean, if I'm printing this error out in once place, could it be happening in a far off chunk of code? (I don't believe it's the select() complaining, but I'm not totally sure.) I've tried to use 'b CONDITION' in the debugger to track it down, but I can't figure out how to write the CONDITION. It always thinks I mean a subroutine. Any help here? Basically, any and all tips on the $! variable are needed. Thanks for your time and help. James -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
