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  1. Xref: sparky comp.unix.wizards:3772 comp.unix.questions:10658
  2. Newsgroups: comp.unix.wizards,comp.unix.questions
  3. Path: sparky!uunet!gatech!news.byu.edu!ux1!fcom.cc.utah.edu!gateway.univel.com!ns.novell.com!gateway.novell.com!thisbe.Eng.Sandy.Novell.COM!terry
  4. From: terry@thisbe.Eng.Sandy.Novell.COM (Terry Lambert)
  5. Subject: Re: reliable signals under BSD / SVR4
  6. Message-ID: <1992Sep2.194218.2951@gateway.novell.com>
  7. Keywords: signals, reliable, software interrupts
  8. Sender: news@gateway.novell.com (NetNews)
  9. Nntp-Posting-Host: thisbe.eng.sandy.novell.com
  10. Organization: Novell NPD -- Sandy, UT
  11. References: <acourtny.715263267@unix1.tcd.ie> <Btwqvs.LAI@zeus.dialix.oz.au>
  12. Date: Wed, 2 Sep 1992 19:42:18 GMT
  13. Lines: 18
  14.  
  15. In article <Btwqvs.LAI@zeus.dialix.oz.au> peter@zeus.dialix.oz.au (Peter Wemm) writes:
  16. >BSD/POSIX/SVR4 signals to not automatically "reset" to default on
  17. >actication, and the signal is usually *masked* to prevent a recurring
  18. >signal from within the handler.  The mask is cleared when the handler 
  19. >returns.  I dont seem to remember anything about reliable stacking or 
  20. >queueing of signals in this model.
  21.  
  22.     The POSIX 1003.4 draft currently includes queued signals, such that
  23. signals are treated as discrete "1 signal/1 handler invocation" events.
  24.  
  25.  
  26.                     Terry Lambert
  27.                     terry_lambert@gateway.novell.com
  28.                     terry@icarus.weber.edu
  29.  
  30. ---
  31. Disclaimer:  Any opinions in this posting are my own and not those of
  32. my present or previous employers.
  33.