On Fri, Apr 20, 2007 at 10:06:48AM -0600, Eric Blake wrote: >According to David Xiao on 4/20/2007 9:49 AM: >>In win32 sub-system there is no signal or sig-stack facilities. I am >>quite curious how cygwin1.dll can do that? What's the mysterious part >>of it? >> >>As I knew, user-mode thread library such as pthread (POSIX thread) can >>be implement in use of signal. So signal facilies emulation is quite >>essential part to full implement a POSIX sub-system like cygwin does. >> >>I wish some can share with experience on this topic: How does cygwin >>provide signal facilities? > >It's open source - why don't you read it to find out for yourself? > >http://cygwin.com/cgi-bin/cvsweb.cgi/src/winsup/cygwin/how-signals-work.txt?cvsroot=src
For the record, the signal handling in cygwin is one of the most complicated parts of the whole DLL. The how-signals-work.txt file does talk about some of it but it is, unfortunately, incomplete and out-of-date. cgf -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
