[Vm-dev] Stdin/stdout/stderr support

Igor Stasenko siguctua at gmail.com
Fri Aug 29 18:15:29 UTC 2008

2008/8/29 Bert Freudenberg <bert at freudenbergs.de>:
> I have implemented direct support for std streams:
> http://squeakvm.org/svn/squeak/branches/olpc/platforms/Cross/plugins/FilePlugin/sqFilePluginBasicPrims.c
> This will catch filenames like "/dev/stderr" and connect the real stderr
> instead (also preventing to close these).
> This file pattern is in usage already, e.g.
> http://lists.squeakfoundation.org/pipermail/beginners/2007-April/002268.html
> In OLPC we used this to log errors (we added FileStream class>>stderr etc.)
> because SqueakDebug.log is in an unaccessible place, but using the
> /dev/stderr symlink is broken by the security architecture, so I need to
> access the actual stderr.
> Any objections to make this go into the trunk Cross platform dir?

yes. In windows you can't open '/dev/stderr'
but you can open it if you using an stdio library. like fopen(...)

In libc they are defined as a 'well-known' file handles = 0,1,2 which
is stand for stdin, stdout and stderr correspondingly.

And i'm completely with you. Squeak should have support for standard
input/output streams.

> - Bert -

Best regards,
Igor Stasenko AKA sig.

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