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file locking #5

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rd235 opened this issue Oct 25, 2017 · 2 comments
Open

file locking #5

rd235 opened this issue Oct 25, 2017 · 2 comments
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@rd235
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rd235 commented Oct 25, 2017

File locking is not currently supported in vuos
Unfortunately there are many file locking APIs: fcntl, flock...
@rd235 rd235 added the feature label Oct 25, 2017
@steppp
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steppp commented Apr 14, 2020

I have some questions regarding this feature implementation:

  • when a locking SC should be virtualized? Always, in some cases (and what would these be?), ...
  • how can we define such cases? Using a system like vufs to virtualize only the locking SCs which use a file descriptor of a file in the virtualized tree?
  • what locking SCs should be virtualized? All, just the ones that shouldn't be allowed, ... ?
  • where does the code should be placed? In a (sub)module, as part of VUOS, ... ?

These are the first questions that come to mind when thinking about this feature.
I'd be happy to at least write a first implementation for this functionality but I need more info about it and some tips on how to start.

@steppp
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steppp commented Aug 17, 2020

PR #21 addresses this

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