Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!utgpu!water!watmath!clyde!rutgers!sri-spam!sri-unix!teknowledge-vaxc!mkhaw From: mkhaw@teknowledge-vaxc.UUCP Newsgroups: comp.sys.apollo Subject: Re: Concurrency at open - (nf) Message-ID: <18464@teknowledge-vaxc.ARPA> Date: Sat, 31-Oct-87 01:22:11 EST Article-I.D.: teknowle.18464 Posted: Sat Oct 31 01:22:11 1987 Date-Received: Mon, 2-Nov-87 04:56:57 EST References: <41600002@uklirb.UUCP> Organization: Teknowledge, Inc., Palo Alto CA Lines: 17 + I have some difficulties using files for reading and writing at the + same time. The problem is the following: I'd like to write to a file + with some program and at the same time to display this file with + the DM call 'cv '. But if the writing program does the first + access to the file, it is locked and can't be shown by the DM. The + same happens if I try to read the file with a second program. + + All tries with stream calls (STREAM_$REDEFINE) changing the attribute + "concurrency at open" failed. Oh great, just like VMS. Yecchh! Mike Khaw -- internet: mkhaw@teknowledge-vaxc.arpa usenet: {uunet|sun|ucbvax|decwrl|uw-beaver}!mkhaw%teknowledge-vaxc.arpa USnail: Teknowledge Inc, 1850 Embarcadero Rd, POB 10119, Palo Alto, CA 94303