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Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!munnari.OZ.AU!news.ecn.uoknor.edu!news.wildstar.net!news.ececs.uc.edu!news.kei.com!news.mathworks.com!howland.erols.net!EU.net!main.Germany.EU.net!Dortmund.Germany.EU.net!interface-business.de!usenet From: j@ida.interface-business.de (J Wunsch) Newsgroups: comp.unix.bsd.misc Subject: Re: Programming Ques. - Fork and Wait Date: 9 Oct 1996 09:45:50 GMT Organization: interface business GmbH, Dresden Lines: 24 Message-ID: <53fs8e$crk@innocence.interface-business.de> References: <532p4u$al0@cssun.cs.usm.my> <5357bg$lff@cssun.cs.usm.my> <53aijp$3ko@innocence.interface-business.de> <53e18l$m2s@acebo.sdi.uam.es> Reply-To: joerg_wunsch@interface-business.de (Joerg Wunsch) NNTP-Posting-Host: ida.interface-business.de X-Newsreader: knews 0.9.6 X-Phone: +49-351-31809-14 X-Fax: +49-351-3361187 X-PGP-Fingerprint: DC 47 E6 E4 FF A6 E9 8F 93 21 E0 7D F9 12 D6 4E txomsy@bossa-nova.cnb.uam.es (Jose R. Valverde) wrote: > > Passing up a value from the child to its parent, however, always > > requires IPC. > > > > Pardon? > > For the kind of problem proposed there may be other possibilities. > If you know the value, you can pass it as an argument to a child process > called with exec after the fork(). I wrote about passing the value from the child to the parent. > You can get an integer result from a child just looking at its > status code. But only between 0 and 127. Certainly too low for the desired application. -- J"org Wunsch Unix support engineer joerg_wunsch@interface-business.de http://www.interface-business.de/~j