Path: utzoo!attcan!utgpu!watmath!att!tut.cis.ohio-state.edu!gem.mps.ohio-state.edu!ginosko!uunet!mcvax!ukc!stl!stc!kings!russell From: russell@kings.co.uk (Russell Brown) Newsgroups: comp.unix.wizards Subject: Anyone understand SXT's (Sys V) Keywords: sxt sys V Message-ID: <9@kings.co.uk> Date: 9 Aug 89 15:41:45 GMT Organization: King Bros ltd, Peterborough, England Lines: 25 Does anyone understand how the sxt mechanisms work on Sys V.{2,3} ? I have the sxt(7) man entry which tells me something but not enough. I also have the shl(1) utility which works in it's own fashion but again doesn't give the game away. I understand how to open /dev/sxt/??0 and fire up the multiplexing with the ioctls specified in sxt(7). Whats really got me though is how the controlling process (ie shl) knows that I've thumped the ^Z key and should pop back into life. In time honoured tradition I've RTFM'd and grovelled through /usr/include/*.h to no avail. I cannot seem to find any answers. Any help/clues would be greatly appreciated. Many thanks. Russell -- ------------------------------------------------------------------------- | Russell Brown | Voice: +44 832 72224 | | Lady Lodge Systems | EMAIL: russell@kings.co.uk | | Chapel Row Cottage, Lutton | UUCP: mcvax!ukc!{stc,logitek}!\ | | Peterborough, PE8 5NE, England. | kings!russell | -------------------------------------------------------------------------