[Vm-dev] Stdin/stdout/stderr support

[Igor Stasenko]

2008/8/29 Bert Freudenberg <bert at freudenbergs.de>:
>
>
> Am 29.08.2008 um 20:15 schrieb Igor Stasenko:
>
>>
>> 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'
>
> That file is not used on Windows.
i mean that its better to use file handles which is available on all
platforms. and they actually should be open at the process startup
>
>> 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.
>
> - Bert -
>
>
>



-- 
Best regards,
Igor Stasenko AKA sig.