home *** CD-ROM | disk | FTP | other *** search
- Path: sparky!uunet!usc!sdd.hp.com!wupost!uwm.edu!rutgers!ub!netfs!manitou.cse.dnd.ca!pburry
- From: pburry@manitou.cse.dnd.ca (Paul Burry)
- Newsgroups: comp.unix.wizards
- Subject: ptys and other pipe-like devices
- Message-ID: <1992Jul24.014111.3578@manitou.cse.dnd.ca>
- Date: 24 Jul 92 01:41:11 GMT
- Sender: pburry@manitou.cse.dnd.ca (Paul Burry)
- Organization: Canadian System Security Centre
- Lines: 22
-
- I have an application that would like to make 16k non-interruptable writes
- to a pty device. (The application is Sybase 4.8). Currently, when it does
- a 16K write, it occasionally is interrupted a signal caused by its internal
- scheduler.
-
- Is there ANY way I can configure the kernel so I can get this behaviour.
- I am running SunOS 4.1.[12].
-
- I see in specfs/fifo.h the define FIFOBUF defines the amount of data
- buffered by a pipe. Would changing this from 4K to 16K cause the
- desired behaviour?
-
- Alternatively, could anyone provide be with the source for a pipe-like
- device providing non-interuptable writes that has both master and
- slave /dev/ entries?
-
- Any help or suggestions would be much appreciated.
- --
- =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
- Paul Burry
- Voice: (613)-991-7325 Internet: pburry@cse.dnd.ca
- Fax: (613)-991-7323 UUCP: ..!{uunet,cunews}!cse.dnd.ca!pburry
-