Thread Safe Iostreams Patch

[Daniel E Baumann]

Hello all. I have been hacking away at thread-safe iostreams and am
including a patch containing that work. At first I attempted to do
recursive locking but ran into some nice deadlock problems :(. So I
opted to lock the stream and buffer on operator<< calls and release at
the end of these calls. This does not give as nice output as I would
like and threads can get preempted between operator<< calls. Also,
there's a bunch of stuff that needs finishing. So baically this is
just a preliminary thing for you to look at, comment on, etc. If
anyone has a nice strategy on how to d recursive locking I am all
ears, else I will just have to give it more thought and figure
something out for myself.

Enjoy. :)
Dan
-- 
And if cynics ridicule freedom, ridicule community...if ``hard nosed 
realists'' say that profit is the only ideal...just ignore them, and use 
copyleft all the same.
      -- RMS

piostreams.diff
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