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[Caml-list] Unix module and threads
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Date: 2004-09-05 (13:43)
From: Markus Mottl <markus@o...>
Subject: Re: [Caml-list] Unix module and threads
On Sun, 05 Sep 2004, Janne Hellsten wrote:
> I wonder what happens if I call [Unix.chdir foo] from two different 
> threads, with two different directories?

This is not thread-safe: threads share the current working directory of
the process.

> After chdir I typicall call [Unix.system] and/or 
> [Unix.open_process_full] and expect the directory to be the one just 
> previously set with [Unix.chdir].
> I would like to parallelize a simple building tool that I've written, 
> but I'm a bit worried if things will mysteriously break with the 
> introduction of multi-threaded control.

Always use absolute paths to avoid problems in multi-threaded contexts.


Markus Mottl

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