[Gambas-user] How to lock a file

Almanova Sistemi almanova at ...1228...
Thu Sep 18 09:27:27 CEST 2008


No, because if I change the line where I open the file:

hfile = OPEN "/usr/far/alman/NOMEFARM.DAT" FOR read wtite

I obtain the same message.


Fabien Bodard ha scritto:
> # If the READ or WRITE keyword are specified, then the input-output
> are not buffered.
>
> # If the INPUT or OUTPUT keyword are specified, then the input-output
> are buffered.
>
>
> Maybe for that ?
>
>
> 2008/9/17 Almanova Sistemi <almanova at ...1228...>:
>   
>> Hi,
>>
>> is the first time that I write to list, but i have a problem.
>>
>> I am writing an application in gambas (2.7.0-2.1) on opensuse 10.3 -
>> 11.0 and I need to lock a file when I open it.
>>
>> My code:
>>
>> ...
>> hfile = OPEN "/usr/far/alman/NOMEFARM.DAT" FOR INPUT OUTPUT
>> TRY LOCK hfile
>> IF ERROR then
>>    ...
>> ENDIF
>> LINE INPUT #hfile, MyVar
>> UNLOCK hfile
>> CLOSE #hfile
>> ...
>>
>> When I execute it I get the following messge:
>> Useless LOCK in line ...
>>
>> Why ?
>>
>> Regards,
>> Massimo.
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>
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