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OCaml IDE (OCaml and stdout/stderr)
- Nathaniel J. Gaylinn
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| Date: | -- (:) |
| From: | Nathaniel J. Gaylinn <ngaylinn@c...> |
| Subject: | OCaml IDE (OCaml and stdout/stderr) |
My program is having a hard time coping with how OCaml splits its output between stdout and stderr. The order in which a line of output is received from OCaml's stdout and a warning from its stderr seems to be completely random and therefore my program's output is also random. I'm pretty sure this has to do with how OCaml buffers stdout, but I'm not sure how to change this. To make my program more portable, I'm writing it using the QT toolkit which has a nice abstraction of inter-process communication in a class called QProcess. This is what I'm using to communicate with OCaml. >From your experience, do you think the buffering is taking place on OCaml's end or on Qt's? Some research seems to suggest that how output is buffered from a program can be controlled from within that program (since there is direct access to the various output streams) but not from outside. If that's true, then the buffering problem must be inside OCaml. Is there any nice way to force OCaml to flush its output buffers more often? Is there any way to customize what data OCaml sends to stdout and what it sends to stderr (this would be a nice feature to have!)? Do any other ideas come to mind? Thanks, -- Nate Gaylinn