great.

all:  ignore my rambling about darin breaking ftp with his changes....


Darin Fisher wrote:

> Doug,
>
> I found a way to avoid breaking FTP.  I can just disable suspending the
> socket transport when mSelectFlags includes PR_POLL_READ.  This should
> only effect FTP and would result in the CPU-hogging behavior of FTP as
> it is now.
>
> Darin
>
> Doug Turner wrote:
>
> > yeah, see: <http://bugzilla.mozilla.org/show_bug.cgi?id=65220>
> >
> > http://bugzilla.mozilla.org/show_bug.cgi?id=65220
> >
> > The problem is that nsIChannel's are not bidirectional (eg you can not
> > read and write at the same time even if you are lockstepping).  In FTP,
> > I do a AsyncRead while doing a AsyncWrite.  Things should be okay, but
> > they are not.  The write socket transport is stuck in the select list
> > resulting in the sockettransport going into a busy waiting state.  I am
> > working on fixing nsIChannel and all callers and should be done with it
> > in a week or so.  (I estimated a week, but I think i may run over
> > because some of the terrible usage patterns I am finding).
> >
> > Furthermore, Darin will be landing some AsyncWrite (and friends) changes
> > today which will definitely break FTP.  This breakage will be fixed my
> > may nsIChannel changes.
> >
> > We should probably disable the ftp test on tinderbox for the next week
> > or so.
> >
> > CC-ing the netlib newsgroup.
> >
> >
> >
> > [EMAIL PROTECTED] wrote:
> >
> >     That was doug.
> >
> >      >
> >      > These timeouts starting with a major ftp checkin. Don't remember
> >     who did
> >      > it, but it was some kind of minor carpool.
> >      > Due to the slowdown, the corresponding bug got reopened, but
> >     obviously
> >      > not fixed :-(.
> >      >
> >      > Axel
> >

Reply via email to