On Wed, 2006-12-20 at 14:09 -0600, Seetharami Seelam wrote:
> 
> On 12/20/06, Ming Zhang <[EMAIL PROTECTED]> wrote: 
>         On Wed, 2006-12-20 at 17:45 +0100, Jens Axboe wrote:
>         > On Wed, Dec 20 2006, Ming Zhang wrote:
>         > > 
>         > > On Wed, 2006-12-20 at 14:02 +0100, Jens Axboe wrote:
>         > > > On Wed, Dec 20 2006, Jens Axboe wrote:
>         > > > > On Wed, Dec 20 2006, Jens Axboe wrote:
>         > > > > > Irk, do_pipe() needs to know what the input is,
>         obviously. Lemme add 
>         > > > > > that as well.
>         > > > >
>         > > > > This has a better chance of working, still not tested
>         though. If you can
>         > > > > test, I'll commit it once we have it working. 
>         > > >
>         > > > It works for me, just tested it. Patch committed.
>         > > >
>         > >
>         > > yes, works. thx.
>         > >
>         > > now the fifo will use a name pattern like foo. but regular
>         file will use 
>         > > foo.blktrace.X and if you give full name, blkparse does
>         not report any
>         > > warning or error, just return 0 results. this drove me
>         nuts before i
>         > > read the code.
>         > >
>         > > [ [EMAIL PROTECTED] blktrace]$ ./blkparse a.a.blktrace.0
>         > > WARNING: full file name given. Should give trace name foo,
>         > >         instead of file name foo.blktrace.x
>         >
>         > Better would be to just fix it up for the user, the current
>         setup is a 
>         > little un-intuitive. Care to patch that up? :-)
>         >
>         
>         are these what u want?
>         
>         * user supplied a foo, we automatically match it with
>         foo.blktrace.X and
>         open.
>         * user supplied a foo.blktrace.X, we do not add extra
>         blktace.X and open
>         it directly.
>         
>         then if user have foo.blktrace.0 and foo.blktrace.1, current
>         code works
>         when use "-i foo". then shall we support "-i foo.blktrace.0"
>         and open
>         foo.blktrace.1 automatically?
>  
>  
>         Perhaps, if user explicity supplies the name(s),  you should
>         open just that (those) file(s). May be you should open all
>         when the name is supplied as foo.blktrace.*

key point here is not the implementation difficulty, but how we decide a
consistent rule. i agree with the rules u set, if i understand
correctly.

* if "-", then read from stdin;
* if file name is foo.blktrace.*, then we try to open all;
* all other file name pattern, we open only _one_ file with _exact_ file
name.

See if others like this.

>  
>  
> Seelam
> 
>  

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