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On Tue, 2002-08-27 at 00:29, Corinna Vinschen wrote: > On Mon, Aug 26, 2002 at 03:20:00PM +0100, Conrad Scott wrote: > > "Christopher Faylor" <cgf@redhat.com> wrote: > > > There shouldn't really be that much overhead to the current > > method for > > > handling text/binary reads, though. It's just checking a bit > > field. > > > > At the coal-face it ends up being a bit more messy than that. For > > example, the fhandler::read code checks the readahead buffers for > > pending data but they will always be empty in binary-mode (AFAIK) > > . In fact there's a page of code before the check for whether a > > binary read is being done and only then does the code escape back > > to the caller. Since (AFAIK) you can't change the text/binary > > mode of an fd once it's been opened (and thus the readahead > > You can. setmode(fd, O_TEXT); or setmode(fd, O_BINARY); Which is why I was suggesting stripping O_TEXT capability for raw FD's, and making the TEXT translation only ever apply to the FILE * calls - fprintf, fscanf, fread etc... It allows all the fd level code to be much much simpler. Rob
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