--- $Bill Luebkert <[EMAIL PROTECTED]> wrote:
> Arijit Das wrote: > > > I think you are missing out here... > > Let's hope not. > > > DIsk files are always fully-buffered, STOUT is > line > > buffered and STDERR is unbuffered. > > Not true on all systems - buffering varies on > different target > devices, system calls and OS's. UNIX 'write (2)' to > a disk file > is not buffered - unlike the stdio interface (see > last comment > below). Aggreed on what u r saying... But I am talking about a "open" in Perl, followed by a set of "print" cmds, on s block device i.e. my hard drive...and in this scenario, it is fully buffered by default. > > > My problem is I have to do a kill -9 at the end. > And a > > process dying with kill -9 doesn't get a scope to > do > > its cleanup like flushing open files handles and > > closing them. > > If all you want to do is make sure your data is > unbuffered, then > turn off the buffering after opening the file. > > You can select it and unbuffer it using: > > $oldh = select (FH); > $| = 1; > select ($oldh); > > or one step version: > > select ((select (FH), $| = 1)[0]); > These are the last options I have in mind... But I was just wondering if there is anything else which probably I don't know and can do my job in a much smarter way.. -Arijit > Using syswrite will also bypass any buffered IO > since it uses the > 'write' system call, but be careful mixing it with > stdio (non-'sys') > functions. > > -- > ,-/- __ _ _ $Bill Luebkert > Mailto:[EMAIL PROTECTED] > (_/ / ) // // DBE Collectibles > Mailto:[EMAIL PROTECTED] > / ) /--< o // // Castle of Medieval Myth & > Magic http://www.todbe.com/ > -/-' /___/_<_</_</_ http://dbecoll.tripod.com/ > (My Perl/Lakers stuff) > Arijit Das Infosys Technologies Ltd. Mangalore - 575 006, India Cell Phone: 9448135200 E-Mail: [EMAIL PROTECTED] __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com _______________________________________________ Perl-Unix-Users mailing list Perl-Unix-Users@listserv.ActiveState.com To unsubscribe: http://listserv.ActiveState.com/mailman/mysubs
