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From: martin@icsl.ucla.edu (Kenneth Martin/)
Newsgroups: comp.sys.next
Subject: Connecting a Stream to a Text Object
Message-ID: <1484@lee.SEAS.UCLA.EDU>
Date: 28 Nov 90 06:30:30 GMT
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Organization: ICSL Lab., EE Dept., University of California, Los Angeles
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On page 10-4 of the Concepts manual, it says "You can also implement the
functions needed to connect a stream to a different source or destination,
such as a Text object, thereby creating your own type of stream." Unfortunately,
two paragraphs later it says "The last section contains information about
how to connect a stream to a source or destination other than memory, a file,
or a Mach port.  <<This section isn't currently available.>>.  Does anyone
out there know how to connect a stream to a Text window for reading and
writing?  The Text window is a subwindow of a larger window.

My best guess at the present time seems to be:

1) Open two Mach ports, one for reading and one for writing.  (I'd greatly
prefer to have one stream for both directions.)
2) Create a thread that reads from the one port and sends it to the Text
window.
3) Create another thread that reads from the text window and sends it to
the thread.
4) Somehow get all these things happening concurrently without any timing
problems.

I admit that I am very ignorant of Mach, threads, and Mach ports, but even
so, this seems like an incredibly complicated and burdensome way to simply
read and write through a stream to a Text window.  Could anyone tell me if
I'm way off base, or should I plug ahead?  All comments are appreciated. Thanks.

-Ken Martin: martin@icsl.ucla.edu