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From <...@covalent.net>
Subject Re: cvs commit: apr-util/buckets apr_buckets_file.c
Date Thu, 05 Jul 2001 15:14:05 GMT
On Thu, 5 Jul 2001, Bill Stoddard wrote:

> > > Maybe there is something very fundamental that I a missing here.
> > > Each 8K chunk that is read causes the system to increment its file
> > > pointer for that open fd. You should not need to call seek() to do
> > > something the system is already doing for you under the covers.
> >
> >
> >    apr_file_t *f = ...;
> >    apr_bucket *a, *b, *c, *d;
> >
> >    /* split the bucket into hunks of 100 bytes each */
> >
> >    a = apr_bucket_file_create(f, 0, len, pool);
> >    b = apr_bucket_split(a, 100);
> >    c = apr_bucket_split(b, 100);
> >    d = apr_bucket_split(c, 100);
> >
> >    APR_BUCKET_INSERT_AFTER(a, c);
> >
> >    apr_bucket_destroy(b);
> >    apr_bucket_destroy(d);
> >
> > You can't guarantee that consecutive reads from file buckets read from the
> > "next" spot in the file.  In fact, they very frequently jump around.
>
> Give me a common example of reads from file buckets jumping around.

Any small byterange request.

Ryan

_____________________________________________________________________________
Ryan Bloom                        	rbb@apache.org
Covalent Technologies			rbb@covalent.net
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