From: Massimiliano Mirra <list@...>
Date: 2002-03-13T02:04:19+09:00
Subject: Re: gzip again...

On Tue, Mar 12, 2002 at 11:13:35PM +0900, Paul Brannan wrote:
> > IO.popen('gzip -dc', 'w+') do |gz|
> >   gz.syswrite(data)
> >   gz.close_write
> > end
> > The above code just hangs everything.  From a console, gzip -dc
> Look at the return value from syswrite().  It may not be writing all the
> bytes at once; 

Yes, you're right.  I checked it and it hangs if I tell it to slurp
more than the first 36864 bytes at once.

> you may want to use a loop and slice! to write the rest
> of the data that didn't get written.

But it won't allow me to read unless I close_write it first, after
which of course it is no longer possible to write to it, so the
following will hange at the first gz.read:

IO.popen('gzip -dc', 'w+') do |gz|
  gz.syswrite(data[0...36864])
  gz.read
  gz.syswrite(data[36864...40000])
  gz.read
end


Massimiliano