Re^3: Signals vs. Windows

[bulk88]

in reply to Re^2: Signals vs. Windows
in thread Signals vs. Windows

So, the problem restated is, I guess, how do I interrupt a thread from an I/O operation?

1. dont use blocking I/O, use overlapped/async I/O

2. use Native API, create an alertable *synchronous* file handle using NtCreateFile, post a timer APC to the blocked thread with SetWaitableTimer, the APC will call CancelIo from within the blocked thread, and the blocked I/O will unblock.

[DanEllison]

I'm trying to avoid a Windows only solution.

[bulk88]

You won't get very far with Win32 Perl. Try Cygwin Perl then. This is what MS supports as "signals", http://msdn.microsoft.com/en-us/library/xdkz3x12%28v=vs.71%29.aspx, which is Ctrl-C and that is it.

Perl adds some more support in http://perl5.git.perl.org/perl.git/blob/6aa4fbb50135d4863535200030aadfeb8c583c6e:/win32/win32.c#l4174 and http://perl5.git.perl.org/perl.git/blob/6aa4fbb50135d4863535200030aadfeb8c583c6e:/win32/win32.c#l4174.